JP5013803B2 - Lightning strike frequency information providing apparatus, system, and method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide information on the frequency of lightning strikes, which is counted on a condition adapted for a lightning strike observation condition designated by a user, to the user. <P>SOLUTION: This device 20 for providing the information on the frequency of lighting strikes is provided with: a lightning strike data acquiring part 200 for acquiring lightning strike data including at least the occurrence date and hour and occurrence position of lightning strike when lightning strike occurs; an observation condition acquiring part 204 for acquiring a lightning observation condition to be determination reference as to whether to count the frequency of lightning strikes from a user terminal 40 via a network 30, a count processing part 208 for counting the frequency of lightning strikes on the basis of the lightning strike data acquired by the lightning syrike data acquiring part 200 and the lightning strike observation condition acquired by the observation condition acquiring part 204; and an information transmission part for transmitting information showing the frequency of lightning strikes counted by the count processing part 208 to the user terminal 40. <P>COPYRIGHT: (C)2008,JPO&amp;INPIT

Description

  The present invention relates to an apparatus, a system, and a method for providing lightning strike frequency information to a user.

  For example, when a lightning strike occurs on an overhead power transmission line, an instantaneous voltage drop occurs in the power supplied to the customer, which adversely affects electronic products. For example, Non-Patent Document 1 exemplifies the following as an influence of an instantaneous voltage drop on an electronic product.

(1) In a variable speed motor for power electronics application, if a voltage drop of about 15% or more continues for about 0.01 seconds or more, an effect occurs.
(2) In an electromagnetic switch, when a voltage drop of about 50% or more continues for about 0.01 seconds or more, an influence occurs.
(3) In a high-pressure discharge lamp, if a voltage drop of about 15% or more continues for about 0.06 seconds or more, an influence occurs.
(4) In a personal computer, if a voltage drop of about 40% or more continues for about 0.06 seconds or more, an effect is produced.
(5) With an undervoltage relay, an effect occurs when a voltage drop of about 20% or more continues for about 1 second or more.

  As described above, even an instantaneous voltage drop affects the electronic product and causes an economic loss to the customer. In relation to such a problem, for example, Patent Literature 1 discloses a lightning strike information providing system for quantitatively calculating and providing an influence of a lightning strike on a customer facility.

  In order to prevent the customer's economic loss due to the effects of lightning, as exemplified in Non-Patent Document 1, measures such as installing a power failure compensation device at the customer or taking lightning countermeasures at an electric power company are effective. It is. However, since these measures are costly to implement, it is not realistic to try to prevent all economic losses due to lightning strikes by these measures alone.

Therefore, in order to compensate for the customer's economic loss due to lightning strikes, it is conceivable to provide customers with financial compensation, such as discounting electricity charges according to the number of lightning strikes or providing insurance money. For example, in the case of the patent document 2, the applicant has applied an instantaneous voltage drop response that can be used to make financial compensation for a customer when a customer's instantaneous voltage drop caused by a lightning accident on an overhead power transmission line occurs. Type electricity bill calculation system is proposed.
"Instantaneous voltage drop countermeasures", Electric Joint Research, Vol.46, No.3 JP 2003-47173 A JP 2005-233755 A

  By the way, lightning strikes frequently occur a plurality of times, and there is no great difference in the influence of the customer when it occurs once in a short time such as 10 seconds and when it occurs several times. Further, the degree of influence that a customer receives when lightning strikes continuously varies depending on the customer's facility environment. That is, if it takes 10 seconds for an electrical equipment of a customer to recover from the effect of the instantaneous voltage drop due to lightning, for example, no matter how many lightning strikes occur during that 10 seconds, the loss experienced by the customer will not change much. When lightning strikes occur at intervals exceeding 10 seconds, the loss increases with the number of times. Also, if another customer's electrical equipment takes 1 hour to recover from the effect of the instantaneous voltage drop, no matter how many lightning strikes occur during the hour, the loss will not change much, and lightning will occur at intervals exceeding 1 hour. When this occurs, the loss increases with the number of times. Therefore, when providing financial compensation to a customer according to the number of lightning strikes, the number of lightning strikes should be counted individually under counting conditions that are suitable for the customer's facility environment.

  When a contract for lightning strike options is concluded between a financial institution such as an insurance company and a customer, the customer usually has a way of knowing how often lightning strikes that affect them occur. It is troublesome to ask financial institutions for the number of lightning strikes. Also, for financial institutions, individually handling inquiries from a large number of contractors is extremely complicated and burdensome. Similarly, which lightning strikes affect you to determine whether you want to make a lightning option transaction or whether the terms and conditions of the lightning option transaction you are signing are appropriate. It is necessary to know whether it occurs at a certain frequency. Each time, it is troublesome to make an inquiry to the financial institution, and the corresponding business burden on the financial institution becomes heavy. Therefore, in order to facilitate lightning options trading, individual contracts with financial institutions that provide lightning options or contracts with lightning options are considered. It is desirable to be able to provide information on the number of lightning strikes counted under conditions in a timely manner. In addition, it is useful not only for the lightning option transaction, but when the number of lightning strikes is used as an index or the like, it is useful to provide the number of lightning strikes counted under individual conditions according to the user's environment and the like.

  The present invention has been made in view of the above points, and it is an object of the present invention to provide information on the number of lightning occurrences counted according to lightning observation conditions individually designated by the user to the user. To do.

To achieve the above object, the present invention is a lightning strike frequency information providing device for providing information indicating the number of lightning strikes to a user,
A customer database in which a customer number is associated with each customer of an electric power company and the identification information of the incoming distribution line or the incoming transmission line is stored;
A facility database in which transmission lines of electric power companies and identification information of electric stations connected to the electric power companies are stored in association with each other;
A transmission line route database storing information representing the route of each transmission line of the power company,
When the voltage of each power transmission line of the electric power company decreases, information indicating the degree of voltage drop generated at each electric power station stores the instantaneous voltage drop impact database for each electric power station,
Can be referred to,
When a lightning strike occurs, a lightning strike data acquisition unit that obtains lightning strike data including at least the date and time of occurrence and the location,
An observation condition acquisition unit that acquires lightning observation conditions, which are the criteria for determining whether to count the number of lightning strikes, from a user terminal via a network;
A count processing unit that counts the number of lightning strikes based on the lightning strike data acquired by the lightning strike data acquisition unit and the lightning strike observation conditions acquired by the observation condition acquisition unit;
An information transmission unit that transmits information indicating the number of lightning strikes counted by the count processing unit to the user terminal ;
The lightning strike observation condition includes the identification information of the customer of the electric power company that is the target of counting the number of times of lightning strikes,
Based on the customer identification information, further comprising an observation target area determination unit that determines a lightning observation target area,
The count processing unit counts the number of lightning strikes for lightning strikes occurring in the observation target area determined by the observation target area determination unit,
The observation target area determining unit refers to the customer database from the customer identification information included in the lightning strike observation conditions, identifies the customer distribution line or power transmission line, and refers to the facility database. A power transmission line that identifies an electric station connected to the specified lead-in distribution line or lead-in power transmission line and refers to the instantaneous power drop influence degree database for each electric station, and influences a voltage drop on the specified electric station The transmission line route database is referred to, the route of the specified transmission line is obtained, and the lightning strike observation area is determined based on the route of the transmission line .

  In addition, the observation area determination unit stores, in a memory, an area that is expected to generate a lightning strike that has an influence of a sag for a customer who has been designated in advance, as an analysis range, and is stored in the memory. For each transmission / distribution line included in the analysis range, when the instantaneous drop occurs, calculate the voltage drop value generated at the electric station connected to the service line to the customer or the electric station provided to the customer, and the calculated Even if the transmission / distribution line whose voltage drop value exceeds the allowable range specified in advance is specified from the transmission / distribution line in the analysis range, and the lightning strike observation area is determined based on the path of the specified transmission / distribution line Good.

The observation area determining unit can refer to an analysis range condition database in which an analysis range condition for specifying an analysis range according to an attribute of each transmission / distribution line of an electric power company is set, and has been designated in advance. From the customer identification information, refer to the customer database, identify the customer's incoming distribution line or incoming transmission line, and refer to the facility database to connect to the specified incoming distribution line or incoming transmission line. Identify the power station, refer to the transmission line route database, identify the route of the specified lead-in distribution line or transmission / distribution line connected to the lead-in transmission line, and refer to the analysis range condition database. The transmission / distribution line that meets the analysis range condition among the specified transmission / distribution lines is determined as the analysis range and stored in the memory. There.

  In addition, the observation area determination unit receives a specification about the failure mode of the transmission / distribution line via the input interface, and stores a failure mode database that stores information on the degree of voltage drop that occurs in the transmission / distribution line according to the failure mode. When calculating the voltage drop, the information on the received failure mode is collated with the failure mode database, the voltage drop level corresponding to the failure mode is specified, and the voltage drop value is calculated. It may be that.

  In addition, the observation area determining unit, for each transmission / distribution line included in the analysis range stored in the memory, when an instantaneous drop due to a lightning strike occurs, Calculate the duration of the voltage drop value that occurs in the installed electrical station, identify the transmission / distribution line that exceeds the allowable range specified in advance for the calculated voltage drop from the transmission / distribution line in the analysis range, A lightning strike observation area may be determined based on the identified transmission / distribution line route.

  Further, the observation target area determination unit identifies a transmission / distribution line in which both of the calculated voltage drop value and the duration of the voltage drop exceed a predetermined allowable range from the transmission / distribution line in the analysis range. It is also possible to determine a lightning strike observation target area based on the identified transmission / distribution line route.

  The transmission line route database stores the coordinates of the location of each tower that supports each transmission / distribution line, and the observation area determining unit determines a location area of the transmission / distribution line in which a coordinate system is set. It is possible to refer to a latitude and longitude database that defines the coordinate range for each lightning strike observation area section divided by shape, and when determining the lightning strike observation area, the coordinates of the location of the steel tower that supports the transmission and distribution lines are Extracted from the transmission line route database, obtains a route with a straight line between the coordinates of the location as a transmission / distribution line route, collates the information on the route with the latitude / longitude database, and classifies the area of lightning strikes crossed by the route It is good also as making it the observation object area of a lightning strike.

  Alternatively, the lightning strike observation condition may include information indicating a lightning strike observation area, and the count processing unit may count the number of lightning strikes for lightning strikes generated in the observation target area.

In addition, the lightning strike observation condition includes a reference time as a reference for determining whether to count the number of lightning strikes,
The count processing unit is included in the lightning count condition acquired from the occurrence date and time included in the observation area, and the occurrence position included in the lightning strike data acquired by the lightning strike data acquisition unit If the number of lightning strikes is not counted during a period that is back by the reference time, the number of lightning strikes may be counted as one time. Furthermore, the lightning strike data includes a lightning current value, and the lightning strike condition includes a lightning reference current value that is a criterion for counting the number of lightning strikes. The number of lightning strikes may be counted only once when the lightning strike current value included in is equal to or greater than the reference current value included in the lightning count condition.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to provide a user with the information regarding the lightning strike frequency counted according to the conditions designated individually by the user.

  Hereinafter, a lightning strike frequency information providing system according to an embodiment of the present invention will be described. In the present embodiment, an example will be described in which lightning frequency information is provided to a user via a network when performing an option transaction using the number of lightning strikes as an index (hereinafter referred to as a lightning strike option transaction).

  A lightning strike option transaction is a financial institution such as an insurance company that contracts with a power company customer and the customer pays an option fee (ie insurance premium) to the financial institution, while the financial institution responds to the number of lightning strikes. By paying the amount to the customer, it compensates the economic loss caused to the customer by lightning strikes. In other words, as described in the above prior art, when a lightning strike occurs on an overhead transmission line of an electric power company, an instantaneous voltage drop occurs in a customer who receives power supply, which causes the production machine in the factory to stop. Economic losses occur due to the effects of lighting off or computer shutdown. This loss is compensated by paying the customer from the insurance company an amount corresponding to the number of lightning strikes.

  Note that even if a lightning strike occurs, the instantaneous voltage drop does not always occur, and the instantaneous voltage drop may occur due to a cause other than the lightning strike. Therefore, in order to compensate for the customer's loss due to the instantaneous voltage drop, strictly speaking, the number of occurrences of the instantaneous voltage drop should be used as an index instead of the number of lightning strikes. However, since the occurrence of the instantaneous voltage drop occurs under the customer and can be recognized only by the customer, it is difficult to objectively determine the occurrence of the instantaneous voltage drop. In addition, it is considered that there is a certain correlation between the number of lightning strikes and the number of instantaneous voltage drops. For example, when examining the relationship between the number of lightning strikes per year and the number of occurrences of instantaneous voltage drop in the entire Chugoku region from 1989 to 2003, as shown in FIG. 1, the number of occurrences of instantaneous voltage drop increases as the number of lightning strikes increases. It can be seen that it increases almost linearly. Thus, in the present embodiment, lightning strike option trading is performed using the number of lightning strikes that can be objectively observed as an index.

  In addition, lightning strikes affect customers when lightning strikes a transmission path related to power transmission to the customer, and even if lightning strikes occur in an area unrelated to power transmission to the customer, the customer is affected. There is no. Therefore, in lightning strike option trading, it is necessary to count only the number of lightning strikes that occurred in an area that may affect customers and use it as an index. Furthermore, as described in the column of the problem to be solved by the present invention, even if lightning strikes occur at the same frequency, the customer's influence varies depending on the facility environment. Therefore, the number of lightning strikes as an indicator of lightning option trading should be counted individually for each customer.

  The system of this embodiment provides the number of lightning strikes counted under conditions suitable for each customer as described above to users such as customers and financial institutions.

  FIG. 2 is an overall configuration diagram of a system according to the present embodiment. As shown in the figure, the system of this embodiment includes a lightning strike observation device 10 and a lightning strike frequency information providing device 20. The lightning strike frequency information providing device 20 is configured by a computer system connected to a network 30 such as the Internet, and a large number of user terminals 40 are connected via the network 30. The user terminal 40 is a computer system such as a personal computer operated by the user, or a portable terminal such as a mobile phone or a PDA.

The lightning strike observation device 10 is a device that detects a lightning occurrence position and a lightning current value generated in various places. Specifically, for example, the lightning strike observation apparatus 10 includes a plurality of slave stations installed at various places and a master station that is communicably connected to these slave stations. The slave station
The direction and magnitude of the electromagnetic wave generated by the lightning strike is detected by a built-in antenna, and data including the electromagnetic wave direction and intensity is transmitted to the master station. The master station determines the lightning strike position and the lightning current value based on the data transmitted from each slave station. In the present embodiment, the lightning strike position is expressed by latitude and longitude. For details of the lightning observation apparatus 10 having the above-described configuration, see, for example, “Development of Lightning Information Transmission System (Part 1)” Giken Technical Bulletin, Chugoku Electric Power Co., Inc., September 1991, No. 78.

  Data including the lightning strike position and lightning current value detected by the lightning strike observation device 10 and the lightning strike date and time (hereinafter referred to as lightning strike data) is transmitted to the lightning strike frequency information providing device 20 via a dedicated line, for example. The transmission of lightning strike data from the lightning strike observation device 10 to the lightning strike frequency information providing device 20 may be performed every time a lightning strike occurrence is detected by the lightning strike observation device 10, or the lightning strike data may be kept constant at certain time intervals. Data of lightning strikes occurring in time may be collectively performed, but in any case, lightning strike data with an old lightning occurrence date / time is transmitted to the lightning strike frequency information providing device 20 first. And

  In addition, even if a lightning strike observation apparatus 10 fails and lightning strike data cannot be transmitted, the lightning strike frequency information providing apparatus 20 cannot distinguish whether a lightning strike has occurred or the lightning strike observation apparatus 10 has a problem. Therefore, by transmitting the operation status of the lightning strike observation device 10 to the lightning strike information providing device 20 or the system of its manager, the lightning strike information providing device 20 side can determine the malfunction of the lightning strike observation device 10. Is preferred.

  The lightning strike frequency information providing device 20 counts the number of lightning strikes as an index of lightning strike option transactions based on the lightning strike data transmitted from the lightning strike observation device 10 and the lightning strike observation conditions specified by the user terminal 40. Provides information on the number of lightning strikes to users. Hereinafter, the configuration of the lightning strike frequency information providing device 20 will be described in detail.

  As shown in FIG. 2, the lightning strike frequency information providing device 20 includes a lightning strike data acquisition unit 200, a user authentication unit 202, an observation condition acquisition unit 204, an observation target area determination unit 206, a count processing unit 208, and an information transmission unit 210. Each function unit includes a lightning strike data storage unit 212, a post-processing data storage unit 214, and an observation condition storage unit 216. The functional units 200 to 210 are realized by the CPU of the computer system constituting the lightning strike frequency information providing device 20 executing a program. The storage units 212 to 216 are provided on a storage device such as a hard disk device.

  As will be described later, in the present embodiment, only lightning strikes exceeding the specified current value (hereinafter referred to as the reference current value) occurring in the observation target area corresponding to the customer point are counted and specified. A counting method that counts only the first time even if lightning strikes continuously within the reference period is adopted, and the customer number for determining the reference current value, the reference period, and the observation area is specified. The included lightning strike observation conditions are specified from the user terminal 40.

  The lightning strike frequency information providing device 20 can refer to a customer database 52, an equipment database 54, a power transmission line route database 56, and an electrical facility instantaneous drop effect database 58 owned by an electric power company. The area determination unit 206 refers to these databases 52 to 58 to determine an area to be counted for the number of lightning strikes.

  The lightning strike data acquisition unit 200 receives the lightning strike data transmitted from the lightning strike observation device 10 and stores the received lightning strike data in the lightning strike data storage unit 212. The lightning strike data stored in the lightning strike data storage unit 212 can be read by the count processing unit 208.

  FIG. 3 shows an example of lightning strike data stored in the lightning strike data storage unit 212. As shown in the drawing, the lightning strike data storage unit 212 sequentially accumulates lightning strike data including the lightning strike date and time, the lightning strike current value, and the lightning strike position for the lightning strikes observed so far.

  The user authentication unit 202 requests the user terminal 40 of the user who has accessed via the network 30 to input a user ID and a password, and performs user authentication based on them. As for users, it is assumed that they are customers of electric power companies that have signed or are considering lightning option trading, and financial institutions such as insurance companies that provide lightning option trading services. The In any case, an electric power company customer or a financial institution user who wants to receive lightning strike frequency information providing service by the system of the present embodiment makes a service use contract with the operator of this system in advance. It is assumed that ID and password are given.

  The observation condition acquisition unit 204 acquires lightning strike observation conditions when counting the number of lightning strikes from the user terminal 40 that has been subjected to the above-described user authentication. Specifically, as the lightning strike observation conditions, a reference current and a reference period for counting the number of lightning strikes, a period for which the number of lightning strikes is counted (hereinafter referred to as an observation period), and a customer's customer number are get. In addition, when a user is a financial institution, the financial institution shall designate the customer number of the customer who is the other party of a lightning strike transaction as one of the lightning strike observation conditions. These lightning strike observation conditions are stored in the observation condition storage unit 216 in association with the user ID.

  The observation target area determination unit 206 refers to the databases 52 to 58 on the basis of the customer number included in the lightning strike observation conditions acquired by the observation condition acquisition unit 204, and is a lightning occurrence area that can affect the customer such as a sag. And this area is determined as an area to be counted for the number of lightning strikes (hereinafter referred to as an observation target area). Here, first, the databases 52 to 58 will be described.

  FIG. 4 shows a data configuration example of the customer database 52. As shown in the figure, in the customer database 52, for each customer of the electric power company, customer number, name, address, lead-in pole identification information (for example, pole number), distribution line identification information (for example, distribution line name), etc. Is stored. In addition, for the customer of the special high voltage, the identification information (for example, the name of the transmission line) of the drawn-in transmission line is stored instead of the identification information of the drawing-in utility pole and the distribution line.

  FIG. 5 shows a data configuration example of the equipment database 54. As shown in the figure, in the facility database 54, for each transmission line and distribution line of the electric power company, identification information (for example, the name of the electric station) connected to the identification information (for example, the name of the transmission and distribution line) ) Are stored in association with each other.

  FIG. 6 shows a data configuration example of the transmission line route database 56. As shown in the figure, the transmission line route database 56 includes, for each transmission line, identification information (for example, transmission line name), identification information (for example, tower number) of a tower that supports the transmission line, and position (latitude). , Longitude) are stored in association with each other.

  FIG. 7 shows a data configuration example of the electrical facility instantaneous drop impact database 58. As shown in the figure, the voltage drop effect database 58 for each electric station stores the voltage drop degree at each electric station when a voltage drop occurs in the transmission line. In the example of FIG. 7, when the voltage at the normal time is 1.0 and the voltage of the A transmission line decreases to 0.0, the voltage at the A power station decreases to 0.8, and the voltage at the B power station decreases to 0. It shows a drop to 2.

  FIG. 8 is a flowchart of processing executed by the observation target area determination unit 206 to determine the observation target area. As shown in the figure, first, in step 100, a distribution line name (a transmission line name in the case of a high-voltage power customer) is extracted by referring to the customer database 52 from the customer number, and in step 102, the facility database 52 is extracted. Referring to Fig. 4, the name of the electric power station connected to the distribution line name or the transmission line name is extracted.

  Next, in step 104, referring to the electrical station instantaneous voltage drop influence degree database 58, the transmission line that influences the voltage drop on the extracted electric station (specifically, the electric station instantaneous voltage drop influence degree database 58). (A transmission line whose numerical value recorded in (1) is below a predetermined threshold value) is extracted. For example, when the A electric power station is extracted in step 102, if the threshold is 0.7, in the example of the electric power plant instantaneous drop impact database 58 shown in FIG. Then, a C power transmission line of 0.6 is extracted. The above threshold value may be a fixed value or may be specified by the user as part of the lightning strike observation condition.

  Next, in step 106, the transmission line route database 56 is referred to, and the position (latitude and longitude) of the steel tower that becomes the transmission line route extracted in step 104 is acquired. In step 108, the position of the steel tower is obtained. Determine the observation area. The determination of the observation target area from the tower position is, for example, as shown in FIG. 9, by setting a rectangular area in which longitude and latitude are divided at intervals of 15 minutes, for example, and assigning an area number to each area, This can be done by setting the area including the tower position acquired in 106 as the observation target area. Note that the area size (latitude and longitude division intervals) and the like may be included in the lightning strike observation conditions so that the user can individually set them.

  Finally, in step 110, the determined area number of the observation target area is stored in the observation condition storage unit 216 as a part of the lightning strike observation condition in association with the corresponding user ID.

  The count processing unit 208 performs lightning strike count processing based on the lightning strike observation conditions (reference period, reference current, lightning strike observation period, and area number of the observation target area) stored in the observation condition storage unit 216. Hereinafter, the count processing of the number of lightning strikes by the count processing unit 208 will be described in detail.

  As mentioned above, lightning strikes tend to occur multiple times in succession, but after being affected by the first lightning strike, it takes a certain amount of time to recover from that effect. After the occurrence, the effects of lightning strikes immediately after it can be ignored. And since the time required to recover from the effect of lightning strikes varies depending on the customer's environment, how much lightning strikes should be ignored within a certain period should be set according to the customer. Therefore, in this embodiment, the concept of the reference time described above is introduced, and lightning strikes that occur within the reference time after the first lightning strike are not counted.

  FIG. 10 is a flowchart of processing performed by the count processing unit 208 to count the number of lightning strikes. The routine shown in the figure is executed for each lightning strike data stored in the lightning strike data storage unit 212. In the figure, tn represents the latest date and time when the occurrence of lightning strikes, and CT represents the number of times of lightning strikes.

  As shown in FIG. 10, first, in step 150, it is determined whether or not the lightning strike position included in the lightning strike data is within the observation target area. The count processing unit 208 has a table that holds the correspondence relationship between the area number and the range of longitude / latitude of the area as shown in the upper left of FIG. 9, and the lightning strike position is (longitude, latitude). Is obtained with reference to the above table, the area number of the area to which the lightning strike position belongs is obtained, and the lightning strike position is determined based on whether the area number matches any area number of the observation target area. Is determined to be within the observation target area.

  If a negative determination is made in step 150, it means that there is no lightning that is the subject of the number of counts, so the process is immediately terminated. On the other hand, if an affirmative determination is made in step 150, then in step 152, whether or not the lightning strike date and time tc included in the lightning strike data is within the lightning strike observation period, and whether or not the lightning strike current value is greater than or equal to the reference current value. Is determined. As a result, if it is within the lightning strike observation period and not less than the reference current value, the process of step 154 is performed next.

  In step 154, it is determined whether or not the latest lightning occurrence count date and time tn is earlier than the time point (tc−T0) that is earlier than the lightning strike date and time tc included in the lightning strike data by the reference time T0. As a result, if a negative determination is made, since the reference time T0 has not elapsed since the occurrence of the lightning counted as the number of lightning strikes, it is determined that the lightning is not counted and the process immediately finish. On the other hand, if an affirmative determination is made in step 154, next, in step 156, “1” is added to the number of lightning strikes CT, and in step 158, the latest lightning occurrence count date and time tn is set to the occurrence of the current lightning strike data. After the date / time tc is set, the process ends.

  If it is determined in step 152 that the current lightning occurrence date / time tc is outside the lightning strike observation period and if the lightning strike observation period has passed (yes in step 160), the number of lightning strikes is counted in step 162. The value CT is determined as the number of lightning strikes, and the value is stored in the post-processing data storage unit 214.

  The number of lightning strikes information transmission unit 210 is counted by the count processing unit 208 as described above, and the information on the number of lightning strikes stored in the post-processing data storage unit 214 is transmitted to the user terminal 40 of the corresponding user.

  FIG. 11 shows the flow of processing when the user accesses the lightning strike frequency information providing device 20 from the user terminal 40 and receives provision of lightning strike frequency information. As shown in the figure, when the user terminal 40 accesses the lightning strike frequency information providing device 20 (step 170), the lightning strike frequency information providing device 20 displays a login screen including a user ID and password input fields. (Step 172), and the user ID and password entered on the login screen are transmitted from the user terminal 40 to the lightning strike frequency information providing device 20 (Step 174). The user authentication unit 202 of the lightning strike frequency information providing device 20 performs authentication based on the user ID and password, and if the authentication is successful, the observation condition acquisition unit 204 reads the reference current value, the reference time, the observation period, and the customer number. Is sent to the user terminal 40 (step 176). When the input data of the observation condition input screen is transmitted from the user terminal 40 to the lightning strike frequency information providing device 20 (step 178), the observation target area determining unit 206 determines the observation target area based on the customer number, An observation target area confirmation screen showing the observation target area is transmitted to the user terminal 40 (step 180). When a confirmation operation is performed on this observation target area confirmation screen (step 182), the count processing unit 208 performs a count process of the number of lightning strikes, and the information transmission unit 210 generates a result display screen including the count result. It transmits to the user terminal 40 (step 184).

  In the above embodiment, the observation target area determining unit 206 determines the lightning strike observation target area based on the customer number. However, the present invention is not limited to this, and the user is one of the lightning strike observation conditions. The observation target area may be directly designated.

<Other embodiments>
Hereinafter, another embodiment of the present invention will be described in detail with reference to the drawings. The observation target area determining unit 206 of the lightning strike frequency information providing device 20 in this embodiment is a functional unit that executes the processing described below. The observation target area determination unit 206 can refer to the customer database 52, the facility database 54, the transmission line route database 56, the analysis range condition database 59, the failure mode database 60, and the latitude / longitude database 61. Suppose that Each of the databases 52 to 61 can be provided in an appropriate storage device such as a hard disk drive provided as a computer device in the lightning strike frequency information providing device 20. Alternatively, these databases 52 to 61 may exist on the network 30 separately from the lightning strike frequency information providing device 20. In this case, the lightning strike frequency information providing device 20 includes, for example, a DBMS (Database Management System), accesses the databases 52 to 61 via the network 30, and executes processing such as information registration and information retrieval.

  Such an observation target area determination unit 206 uses, as an analysis range, a memory (a lightning strike frequency information providing device 20 is provided as a computer) with an area that is expected to generate lightning strikes that may have an impact on a voltage drop for a customer who has been designated in advance. A non-volatile memory or the like).

  In addition, the observation target area determination unit 206 is provided in an electric station or customer connected to a service lead to a customer when a voltage drop occurs for each transmission and distribution line included in the analysis range stored in the memory. Suppose that the voltage drop value occurring at the given electrical station is calculated.

  In addition, the observation target area determination unit 206 identifies a transmission / distribution line in which the calculated voltage drop value exceeds a predetermined allowable range from the transmission / distribution line in the analysis range. Then, the observation target area determination unit 206 determines the lightning strike observation area based on the identified transmission / distribution line route.

  The observation target area determination unit 206 performs analysis in which an analysis range condition for specifying an analysis range corresponding to the attribute of each transmission / distribution line of the power company is set in addition to the customer database 52 and the transmission line route database 56. The range condition database 59 can be referred to. The customer database 52 is referred to from the customer identification information specified in advance, the customer distribution line or the power transmission line of the customer is specified, and the facility database is referred to. Then, the electric station connected to the specified lead-in distribution line or the lead-in transmission line is specified, and the transmission line connected to the specified lead-in distribution line or the lead-in transmission line is referred to the power transmission line route database 56. The route of the distribution line is specified, the analysis range condition database 59 is referred to, and the analysis range condition among the specified transmission and distribution lines is set. The transmission and distribution lines to focus determined as the analysis range may be those stored in the memory.

  In addition, the observation target area determination unit 206 may accept the designation regarding the failure aspect of the transmission and distribution lines via the input interface 105. In this case, the observation target area determination unit 206 can refer to the failure mode database 60 that stores information on the degree of voltage drop that occurs in the transmission and distribution lines according to the failure mode, and the reception is performed when calculating the voltage drop. The failure mode information is collated with the failure mode database 60, the voltage drop level corresponding to the failure mode is specified, and the voltage drop value is calculated.

  For example, a three-phase short circuit, a two-phase short circuit, or a one-phase ground fault can be assumed as the failure mode. Since the degree of voltage drop in each part of the transmission / distribution line varies depending on these failure modes, obtaining the failure mode information as described above improves the determination accuracy of the observation target area finally obtained by the device 20. It becomes.

  In addition, the observation target area determination unit 206 is configured to connect an electric station or a customer connected to a lead-in line to a customer when an instantaneous drop due to a lightning strike occurs for each transmission / distribution line included in the analysis range stored in the memory. It is also possible to calculate the duration of the voltage drop value that occurs at the electrical station provided at. In this case, the observation target area determination unit 206 specifies a transmission / distribution line whose duration of the calculated voltage drop exceeds an allowable range specified in advance from the transmission / distribution line in the analysis range. The observation target area determination unit 206 determines a lightning strike observation area based on the identified transmission / distribution line route.

  In addition, the observation target area determination unit 206 determines that the calculated voltage drop value and the voltage drop duration exceed the allowable range specified in advance from the transmission / distribution lines in the analysis range. It may be specified. In this case, the observation target area determination unit 206 determines the lightning strike observation area based on the identified transmission / distribution line route.

  The transmission line route database 56 may store the location coordinates of each steel tower that supports each transmission and distribution line. In this case, the observation target area determination unit 206 can refer to a latitude / longitude database 61 that defines a coordinate range for each lightning strike observation area section in which a location area of a transmission / distribution line set with a coordinate system is divided into a predetermined shape, When determining the lightning strike observation area, the location coordinates of the tower that supports the transmission and distribution lines are extracted from the transmission line route database 56, and a route that is straight between the location coordinates is used as the transmission and distribution line route. The information on the route is checked against the latitude / longitude database 61, and a set of observation target area sections crossed by the route is set as the observation target area.

  Note that the observation target area determination unit 206 in the lightning strike frequency information providing device 20 described so far may be realized as hardware, or a program stored in an appropriate storage device such as a memory or an HDD (Hard Disk Drive). It may be realized as In this case, the CPU of the lightning strike frequency information providing device 20 reads the corresponding program from the storage device into the memory and executes it in accordance with the program execution.

  In addition, when the observation target area determining unit 206 calculates the voltage drop value and the duration of the voltage drop, the Y method that is an existing calculation technique can be applied. This Y method is known as a power system dynamic characteristic analysis method, and is a technique that is often used for formulating system operation policies and the like, and for simulating system stability.

--- Database structure ---
Next, each data structure of the database used by the observation target area determination unit 206 in this embodiment will be described. FIG. 12 is a diagram illustrating a data configuration example of a database according to another embodiment.

  As shown in FIG. 12 (a), the analysis range condition database 59 is set with analysis range conditions for specifying an analysis range according to the attribute of each transmission / distribution line of an electric power company. Alternatively, it is a set of records in which the attributes of the transmission / distribution lines, the transmission / distribution voltages, and the information on whether the analysis range is appropriate in each voltage range are associated with each other as the key.

  Also, as shown in FIG. 12B, the failure mode database 60 is a database that stores information on the degree of voltage drop that occurs in the transmission and distribution lines according to the failure mode. For example, the name of the failure mode is used as a key. , A set of records in which information on the degree of voltage drop (for example, the rate of voltage drop when normal is 1) that can occur according to each failure mode is associated.

  In addition, as shown in FIG. 12C, the latitude / longitude database 61 is a database in which the coordinate range for each lightning strike observation target area section in which the location area of the transmission / distribution line set with the coordinate system is partitioned in a predetermined shape. For example, it is a set of records in which information such as latitude range and longitude range of each section is associated with the ID of the observation target area section as a key.

--- Processing flow example ---
Hereinafter, an example of an observation area determination process flow in this embodiment will be described with reference to the drawings. Note that various operations corresponding to the processing flow described below are realized by a program that the lightning strike frequency information providing device 20 reads into a suitable memory and executes. Such a program is composed of codes for performing various operations described below.

  FIG. 13 is a flowchart illustrating an observation target area determination processing example 1 according to another embodiment. Here, the lightning strike frequency information providing device 20 accepts designation of a corresponding customer from a user terminal 40 used by a user who wishes to estimate a region range where lightning strikes are expected to have an effect of a sag. (S170). When the customer is designated, for example, when the user terminal 40 accesses the lightning strike information providing device 20 (for example, a server device connected to the user terminal 40 and the network 30), the lightning strike information providing device 20 uses it. The designation is accepted on the input screen presented on the person terminal 40. Since it is common to perform login processing using authentication information such as customer ID on the input screen, the lightning strike frequency information providing device 20 identifies the customer by using the ID of the customer input and authenticated here. can do. Alternatively, if the customer and the user of the user terminal 40 are different, such as when the customer is a power consumer and the user is a person in charge of a power company, the person in charge of the power company It is also possible to input the ID of a customer who wants to estimate the area range where lightning strikes are expected to have an effect on the screen of the user terminal 40. In this case, the customer ID is notified from the user terminal 40 to the lightning strike frequency information providing device 20.

  Based on the customer ID thus designated in advance, the lightning strike frequency information providing device 20 refers to the customer database 52 and identifies the customer (s171). Then, the observation target area determining unit 206 of the lightning strike frequency information providing device 20 stores, in the memory, an area range in which the occurrence of lightning strikes that may affect the instantaneous drop is assumed as an analysis range (s172). At this time, the observation target area determination unit 206 specifically refers to the customer database 52 based on the ID (identification information) of the customer who has received the designation, and determines the incoming distribution line or the incoming transmission line of the customer. First, it will be specified. If it demonstrates in the example of FIG.5, 12 and FIG.14, there exists H line as a transmission / distribution electric wire connected to customer "A" (electricity station: N8000), and the H line is D electric station (N7000). The E line and the F line are connected to the E line, and the E line is connected to the B line and the C line via the B electric station (N3000), and the B line is connected to the A line via the A electric station. The lightning strike frequency information providing apparatus 20 recognizes that the G line is connected to the D line via the C electric station.

  Further, if the lightning strike frequency information providing device 20 can recognize the transmission / distribution line connected to the customer as described above, the analysis range condition database 59 is referred to and the lightning / distribution line of the recognized transmission / distribution line is selected. The transmission / distribution line that meets the analysis range condition is determined as the analysis range and stored in the memory (s173). If the analysis range specifying process is specifically described with the example of the analysis range condition database 59 of FIG. 12 and the example of FIG. 14, the lightning strike frequency information providing device 20 will recognize the transmission / distribution line group (H For the line, E line, F line, B line, C line, A line, D line, G line), the conditions set in the analysis range condition database 59 (for customer A, B for 500,000 V transmission line) , C line only ...) is applied to determine whether the application range is appropriate. In the above example, for the customer “A”, the transmission / distribution lines to be analyzed are H line (branch name: T8000), F line (branch name: T6000), E line (branch name: T5000), C line (branch). Name: T3000) and B line (branch name: T2000).

  Subsequently, the observation target area determining unit 206 of the lightning strike frequency information providing device 20 has a lead-in line to the customer when an instantaneous drop occurs due to a lightning strike for each transmission and distribution line included in the analysis range stored in the memory. The voltage drop value generated at the electric station connected to the electric station or the electric station provided by the customer is calculated (s174). At this time, the observation target area determination unit 206 of the lightning strike frequency information providing device 20 may accept designation of the failure state of the transmission and distribution lines via the input interface of the user terminal 40 or the like. In this case, the observation target area determining unit 206 can refer to the failure mode database 60 (FIG. 12) that stores information on the degree of voltage drop that occurs in the transmission and distribution lines according to the failure mode. Here, the significance of the observation target area determination unit 206 acquiring the failure mode information is that the voltage drop that occurs in the transmission / distribution line is affected if the failure mode is different even if the power transmission / distribution line is affected by an instantaneous drop due to a lightning strike. Is also considered to be different. As shown in the example of FIG. 12, for example, the degree of voltage drop occurring in the transmission / distribution line is different depending on whether the failure mode is a three-phase short circuit or a one-phase ground fault.

  The observation target area determining unit 206 of the lightning strike frequency information providing device 20 collates the obtained failure mode information with the failure mode database 60, specifies the voltage drop level corresponding to the failure mode, and determines the voltage drop value. calculate. In calculating the voltage drop value, a conventionally used Y method may be applied.

  In addition, the observation target area determination unit 206 is configured to connect an electric station or a customer connected to a lead-in line to a customer when an instantaneous drop due to a lightning strike occurs for each transmission / distribution line included in the analysis range stored in the memory. It is preferable to calculate the duration of the voltage drop value generated at the electric station provided at (s175). For the calculation of the duration of the voltage drop, the Y method may be employed.

  FIG. 15 shows a specific example 1 of the voltage drop value calculated by the observation target area determination unit 206 and its duration. In the example shown in this figure, when a failure occurs due to lightning at each branch; T1000 to T8000, the voltage drop value and the duration of each node; N1000 to N9000 are shown. It has become. In the above example, since the branch set as the analysis range for the customer “A” is T2000, T3000, T5000, T6000, and T8000, the observation target area determination unit 206 is the customer when a failure occurs due to lightning. The calculation result 810 of the voltage drop value at “A” and its duration is extracted from the calculation result list 800.

  In the example of FIG. 15, the voltage drop value and the duration of the customer “A” due to a lightning strike in each branch are as follows: T2000: voltage drop 30%, duration 0.05 seconds, T3000: voltage drop 40 %, Duration 0.05 seconds, T5000: voltage drop 90%, duration 0.05 seconds, T6000: voltage drop 90%, duration 0.15 seconds, T8000: voltage drop 100%, duration 0.15 seconds It has become.

  Subsequently, the observation area determining unit 206 of the lightning strike frequency information providing device 20 determines whether the calculated voltage drop value and the duration of the voltage drop exceed a predetermined allowable range. Then, it is specified from the transmission / distribution line in the analysis range (s176). If the allowable range is, for example, “the voltage drop does not exceed 40% of the normal value. The duration of the voltage drop does not exceed 0.1 seconds”, the observation target area determination unit 206 T6000 (F line) and T8000 (H line) are extracted as extraction line data 820 from the branches T2000 to T8000.

  On the other hand, as shown in FIG. 16, the observation target area determining unit 206 may calculate a voltage drop value for each failure mode. In the example shown in this figure, when a three-phase short circuit or one-phase ground fault occurs due to a lightning strike at each branch; T1000 to T8000, a voltage drop value at each node; N1000 to N9000 is calculated. A result list 900 is shown. In the above example, since the branch set as the analysis range for the customer “A” is T2000, T3000, T5000, T6000, and T8000, the observation target area determination unit 206 is the customer when a failure occurs due to lightning. The calculation result 910 of the voltage drop value at “A” is extracted from the calculation result list 900.

  In the example of FIG. 16, the voltage drop values at the customer “A” due to a three-phase short circuit failure due to lightning strikes at each branch are T2000: Voltage drop 30%, T3000: Voltage drop 40%, T5000: Voltage drop 90 %, T6000: Voltage drop 90%, T8000: Voltage drop 100%. In addition, the voltage drop value at customer “A” due to the occurrence of a one-phase ground fault due to a lightning strike in each branch is T2000: voltage drop 20%, T3000: voltage drop 10%, T5000: voltage drop 0%, T6000. : Voltage drop 0%, T8000: Voltage drop 0%.

  The observation target area determining unit 206 of the lightning strike frequency information providing device 20 identifies a transmission / distribution line whose calculated voltage drop value exceeds a predetermined allowable range from the transmission / distribution line in the analysis range. . If the allowable range is, for example, “the voltage drop does not exceed 40% of the normal value”, the observation target area determination unit 206 has a three-phase short-circuit failure state in the branches T2000 to T8000. In this case, T5000 (E line), T6000 (F line), and T8000 (H line) are extracted as extraction line data 920. On the other hand, when the failure mode is a single-phase ground fault, since no branch exceeds the allowable range, the transmission / distribution line is not specified.

  Subsequently, the observation target area determination unit 206 of the lightning strike frequency information providing device 20 determines a lightning strike observation target area based on the identified transmission / distribution line route (s177). At this time, the observation target area determining unit 206 extracts the steel tower that supports the transmission / distribution line specified in step s176 and the coordinates of the location thereof from the transmission line route database 56 (s178). Then, a route obtained by linear interpolation between the location position coordinates is obtained as a transmission / distribution line route (s179). The observation target area determination unit 206 that has obtained the transmission / distribution line route collates the information on the route with the latitude / longitude database 61, and sets a set of lightning observation area sections traversed by the route as a lightning strike observation target area (s180). ).

  FIG. 17 shows a specific example of the observation area selection procedure as a flowchart. In this flow, the observation target area determining unit 206 of the lightning strike frequency information providing device 20 first determines what direction the route has on the coordinate system of the map where the route is arranged (s200). For example, it is determined on the basis of the coordinates of each location of the steel tower pair existing in the route which is larger between the increase rate of the X coordinate (hereinafter, longitude) and the increase rate of the Y coordinate (hereinafter, latitude). Specifically, the absolute value when the longitude Xi of the adjacent tower is divided from the longitude Xi + 1 of a certain tower and the absolute value when the latitude Yi of the adjacent tower is divided from the latitude Yi + 1 of a certain tower are compared, It is determined whether the route is a route mainly extending in the longitude direction (vertical) or a route extending in the latitude direction (horizontal) on the coordinate system.

  In this comparison process, when the distance between the towers is a straight line, when the rate of increase in longitude is greater than the rate of increase in latitude (s200: Y), the observation target area determination unit 206 determines the longitude of the tower that forms the end of the route. Is read as X0 from the transmission line route database 56 (s201). Further, if the distance between the steel towers is a straight line based on the latitude and longitude information, a linear equation y = ax + b is obtained for each steel tower. “A” is the inclination of the route on the coordinate system, and “b” is the intercept value in the coordinate system. Then, the longitude X0 is applied to each of the linear equations, and the latitude in a route (in this case, a part of the route) corresponding to each steel tower is obtained (s202). In this way, the observation target area determination unit 206 acquires information on the latitude corresponding to the longitude X0 (s203).

  Then, the observation target area determination unit 206 collates the latitude / longitude information of the route with the latitude / longitude database 61 (s204), and specifies an area including the latitude / longitude (s205). The observation target area determination unit 206 executes the processing of steps s202 to s205 so far by increasing the longitude by a predetermined increment (for example, 15 minutes) from the longitude X0 (s206), and the other end of the route It repeats until it becomes longitude Xn of the steel tower which forms (s207: Y-s202). In this way, the observation target area determining unit 206 specifies an area corresponding to the straight path connecting the steel towers as the path (s218).

  On the other hand, when it is determined in step s200 that the route is a route that mainly extends in the longitude direction, that is, the vertical direction on the coordinate system (s200: N), the observation target area determination unit 206 determines whether the route is an end of the route. The latitude of the steel tower forming the part is read as Y0 from the transmission line route database 56 (s211). Then, the latitude Y0 is applied to each of the linear equations, and the longitude in a route (in this case, a part of the route) corresponding to each pylon is obtained (s212). In this way, the observation target area determination unit 206 acquires information on the longitude corresponding to the latitude Y0 (s213).

  Then, the observation target area determining unit 206 collates the latitude / longitude information of the route with the latitude / longitude database 61 (s214), and specifies an area including the latitude / longitude (s215). The observation area determining unit 206 executes the processing of steps s212 to s215 so far by increasing the longitude by a predetermined increment (eg, 15 minutes) from the latitude Y0 (s216), and the other end of the route It repeats until it becomes latitude Yn of the steel tower which forms (s217: Y-s212). In this way, the observation target area determining unit 206 specifies an area corresponding to the straight path connecting the steel towers as the path (s218).

  An example of the concept of setting the latitude or longitude in increments is shown in FIG. In the example shown as the method 1, the idea is to preset a fixed increment of latitude and longitude, for example, in units of 0.01 degrees. On the other hand, in the example shown as the method 2, the concept is to engrave the route at equal intervals ΔL. In this case, Δx = ΔL / A · sin θi and Δy = ΔL / B · cos θi. A and B are coefficients for converting longitude and latitude into distance (because the distance per degree differs depending on the place). For example, if the Earth's circumferential distance on the equator is 40,000 km, A = 40,000 km / 360 ° ≈111 km / ° on the equator, and A = 40,000 km × cos 45 ° / 360 degrees≈79 km / degree. Also, since the earth is not completely a perfect circle, the distance per degree is different for longitude. For this reason, the conversion factor B for the distance in the longitude direction is also required.

  Further, for setting the transmission line route, another method as shown in FIG. 19 can be assumed. This method employs the concept of setting a route in consideration of the fact that an actual transmission line has a predetermined width. For example, instead of using the coordinates (Xi, Yi) indicating the tower position in the route calculation as in the above-described embodiment, the route is calculated using the coordinates of the tip of the steel tower arm to which the transmission line is fixed. (Method 1). In this case, it is assumed that the information on the end coordinates of the steel tower arm for each steel tower is stored in the transmission line route database 56.

  Alternatively, as another example, the transmission line may be obtained as follows, where the coordinates of the tower No. i are (Xi, Yi) and the line width between the towers No. i and No. i + 1 is Wi. The coordinate information at the position of the steel tower No. i is assumed to be (Xi ± Wi / (2cosθi), Yi ± Wi / (2sinθi)). In other words, the route is calculated by adding the coordinates of the transmission line path plus or minus Wi / (2cosθi) and ± Wi / (2sinθi) to the longitude and latitude coordinates of the transmission line calculated by the coordinates indicating the center of the tower, and adding the line width of the transmission line. (Method 2). In this case, θ (the inclination angle of the straight line in the coordinate system as shown in the figure) is obtained from the inclination of the straight line between the steel towers, and the coordinate (Xi, Yi) of the steel tower is obtained from the inclination angle θ. Therefore, the deviation of the coordinates corresponding to the line width added to is obtained as ± Wi / (2cosθi) and ± Wi / (2sinθi). When the route is set in consideration of the line width W in this way, the lightning strike observation area division on which the route having the line width is applied is specified when determining the lightning strike observation area.

  The lightning strike observation target area determined by the observation target area determination unit 206 is, for example, as shown in FIG. If the latitude / longitude database 61 collates the route information with straight lines between the steel towers in the transmission / distribution line, E line, F line, and H line specified as the route in the above example and determines the corresponding area, the observation target If the map 120 is divided into small area sections (FIG. 20A), as information 1210 of areas through which straight lines between the steel towers pass, E lines: 1-1, 1-2, 2-2, 2-3, F line: 2-3, 2-4, 3-4, 3-5, 4-5, 4-6, H line: 4-6, 5-6, 6-6, 7-6, Is obtained. In addition, an area group that can be determined as a lightning strike observation target area without overlapping each passing area is shown as determination area information 1220.

  Further, if the observation target area section is a map 1250 (FIG. 20B) that is divided larger than the map 1200, as the information 1260 of the area through which the straight line between each tower passes, E line: 1-1, 1-2, 2-2, F line: 2-2, 2-3, 3-3, 3-4, H line: 3-4, 4-4 are obtained. Further, an area group that can be determined as a lightning strike observation target area without overlapping each passing area is shown as determination area information 1270.

  In addition, the method of determining an area based on the path | route of a transmission / distribution electric wire is not restricted to this, What is necessary is just to be able to determine the area which a transmission / distribution electric wire passes in short.

  In this way, the lightning strike frequency information providing device 20 can specify the range of influence of the lightning strike due to lightning strike on the customer as the lightning strike observation target area, and can accurately calculate the range of lightning strike impact.

  As described above, according to the system of the present embodiment, if a user designates lightning observation conditions on the user terminal 40, the user can be provided with information on the number of lightning strikes counted according to the observation conditions. . Therefore, a customer who has a lightning strike option transaction with a financial institution can determine how much the amount of lightning is based on the number of lightning strikes provided from the lightning strike number information providing device 20 without inquiring of the number of lightning strikes to the financial institution. You can know if payments will occur. In addition, customers who are considering lightning options trading, for example, can simulate the number of lightning strikes by changing lightning observation conditions in various ways, so whether or not the trading conditions presented by financial institutions are appropriate. Can be judged. On the other hand, for financial institutions, the number of inquiries regarding the number of lightning strikes is reduced from the contractor of the lightning option transaction, and even when the inquiries are received from the contractor, the customer's customer number or By simply specifying the lightning strike observation conditions according to the contract conditions, the number of lightning strikes corresponding to the contractor can be obtained and answered, so there is an advantage of reducing the work burden.

  In the above embodiment, when a lightning strike option transaction is performed using the number of lightning strikes as an index, a case where lightning strike information is provided to a user via a network is described as an example. The number of lightning strikes provided by the system of the present invention. The use of information is not limited to lightning strike options trading, but can be widely used as an index for evaluating the risk of loss due to lightning strikes. For example, in the electric power industry, due to a lightning strike on the transmission line, the supply of electricity is interrupted and additional costs are incurred by the customer. In the manufacturing industry, the production line is stopped due to a stoppage of power supply or an instantaneous voltage drop. In addition, there will be additional costs associated with product defects due to product suspension, and golf courses will be suspended in order to ensure safety in the event of lightning strikes. If a cart is used, additional costs such as the removal cost of the electric cart are incurred. The relationship between the additional costs caused by these lightning strikes and the lightning occurrence status varies depending on the type of business. For example, in the communication industry and the electric power industry, it is considered that there is a large relationship with the number of lightning strikes having a lightning current of a certain size or more, and in the manufacturing industry, as described in the above embodiment, at intervals of a certain time or more. It is considered that there is a large relationship with the number of lightning strikes, and that there is a large relationship with the number of days that lightning strikes at golf courses. Thus, although the method of counting the number of lightning strikes that should be used as an indicator of the risk of lightning loss depends on the type of business, business condition, equipment environment, etc., according to the present invention, the number of lightning strikes based on the lightning strike observation conditions specified by the user. Therefore, it is possible to provide information on the number of lightning strikes that is suitable as a loss risk index that meets the user's conditions, and this enables the user to take appropriate measures against the risk of lightning loss. Become.

It is a figure which shows an example of the relationship between the lightning strike frequency and the instantaneous voltage drop occurrence frequency. 1 is an overall configuration diagram of a system according to an embodiment. It is a figure which shows an example of the lightning strike data memorize | stored in the lightning strike data memory | storage part. It is a figure which shows the data structural example of a customer database. It is a figure which shows the data structural example of an equipment database. It is a figure which shows the data structural example of a power transmission line path | route database. It is a figure which shows the data structural example of the instantaneous fall influence degree database classified by electric place. It is a flowchart of the process which an observation object area determination part performs in order to determine an observation object area. It is a figure for demonstrating the setting of the observation object area in this embodiment. It is a flowchart of the routine which performs the count process of the number of lightning strikes in this embodiment. It is a figure which shows the flow of a process in case a user accesses the lightning strike frequency information provision apparatus from the user terminal, and receives provision of lightning strike frequency information. It is a figure which shows the example of a data structure of the database in other embodiment. It is a flowchart which shows the observation area determination process example 1 in other embodiment. It is a figure which shows the idea of the analysis range determination of the transmission / distribution electric wire in other embodiment. It is a figure which shows the calculation specific example 1 of the voltage drop value and its duration in other embodiment. It is a figure which shows the calculation specific example 2 of the voltage drop value and its duration in other embodiment. It is a flowchart which shows the observation object area determination process example 2 in other embodiment. It is a figure which shows the step setting method of the latitude longitude in selection of an observation object area. It is a figure which shows the example of a setting of the power transmission line path | route which considered the track width. It is a figure which shows the example of a determination result of the observation object area in other embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Lightning observation apparatus 20 Lightning strike frequency information provision apparatus 30 Network 40 User terminal 52 Customer database 54 Equipment database 56 Transmission line route database 58 Instantaneous low impact database 59 according to electrical site 59 Analysis range condition database 60 Failure aspect database 61 Latitude / longitude database 200 Lightning strike Data acquisition unit 202 User authentication unit 204 Observation condition acquisition unit 206 Observation target area determination unit 208 Count processing unit 210 Information transmission unit 212 Lightning strike data storage unit 214 Post-processing data storage unit 216 Observation condition storage unit

Claims (12)

A device for providing information on the number of lightning strikes for providing information indicating the number of lightning strikes to a user,
A customer database in which a customer number is associated with each customer of an electric power company and the identification information of the incoming distribution line or the incoming transmission line is stored;
A facility database in which transmission lines of electric power companies and identification information of electric stations connected to the electric power companies are stored in association with each other;
A transmission line route database storing information representing the route of each transmission line of the power company,
When the voltage of each power transmission line of the electric power company decreases, information indicating the degree of voltage drop generated at each electric power station stores the instantaneous voltage drop impact database for each electric power station,
Can be referred to,
When a lightning strike occurs, a lightning strike data acquisition unit that obtains lightning strike data including at least the date and time of occurrence and the location,
An observation condition acquisition unit that acquires lightning observation conditions, which are the criteria for determining whether to count the number of lightning strikes, from a user terminal via a network;
A count processing unit that counts the number of lightning strikes based on the lightning strike data acquired by the lightning strike data acquisition unit and the lightning strike observation conditions acquired by the observation condition acquisition unit;
An information transmission unit that transmits information indicating the number of lightning strikes counted by the count processing unit to the user terminal ;
The lightning strike observation condition includes the identification information of the customer of the electric power company that is the target of the number of times of lightning strikes,
Based on the customer identification information, further comprising an observation target area determination unit that determines a lightning observation target area,
The count processing unit counts the number of lightning strikes for lightning strikes occurring in the observation target area determined by the observation target area determination unit,
The observation target area determining unit refers to the customer database from the customer identification information included in the lightning strike observation conditions, identifies the customer distribution line or power transmission line, and refers to the facility database. A power transmission line that identifies an electric station connected to the specified lead-in distribution line or lead-in power transmission line and refers to the instantaneous power drop influence degree database for each electric station, and influences a voltage drop on the specified electric station Providing the number of times of lightning strikes , referring to the transmission line route database, obtaining the route of the identified transmission line, and determining a lightning strike observation area based on the route of the transmission line apparatus. The lightning strike frequency information providing device according to claim 1 , wherein the observation target area determining unit includes:
For a customer who has been designated in advance, the area range where lightning strikes that may have an impact on the voltage drop are stored in the memory as the analysis range,
For each transmission / distribution line included in the analysis range stored in the memory, when the instantaneous drop occurs, a voltage drop value generated at an electric station connected to a service line to a customer or an electric station provided to the customer Calculate
Identify the power transmission / distribution line whose calculated voltage drop value exceeds a pre-specified allowable range from the power distribution line in the analysis range,
An apparatus for providing information on the number of lightning strikes, wherein a lightning strike observation area is determined based on the identified transmission / distribution line route. The lightning strike frequency information providing device according to claim 2 , wherein the observation target area determining unit includes:
It is possible to refer to the analysis range condition database in which the analysis range condition that specifies the analysis range according to the attribute of each power transmission and distribution line of the electric power company is set,
With reference to the customer identification information specified in advance, the customer database is referenced to identify the customer's incoming distribution line or incoming transmission line, and the facility database is referred to as the identified incoming distribution line or incoming transmission line. Identify the electrical station connected to the electric wire, refer to the transmission line route database, identify the specified lead-in distribution line or the route of the transmission / distribution electric wire connected to the lead-in transmission line, and the analysis range condition Referring to the database, among the identified transmission and distribution lines, determine the transmission and distribution lines that meet the analysis range condition as the analysis range, and store them in the memory.
A device for providing information on the number of lightning strikes. In the lightning strike frequency information providing device according to claim 2 or 3 , the observation target area determining unit includes:
Accept the specification about the failure state of the transmission and distribution lines via the input interface,
It is possible to refer to the failure mode database that stores information on the degree of voltage drop that occurs in the transmission and distribution lines according to the failure mode.
When calculating the voltage drop, the information on the received failure mode is collated with the failure mode database, the voltage drop level corresponding to the failure mode is specified, and a voltage drop value is calculated.
A device for providing information on the number of lightning strikes. The lightning strike frequency information providing device according to any one of claims 2 to 4 , wherein the observation target area determining unit includes:
For each transmission / distribution line included in the analysis range stored in the memory, when a voltage drop occurs due to a lightning strike, a voltage drop value generated at an electric station connected to a customer lead-in line or an electric station provided by the customer Calculate the duration of
The transmission / distribution line that exceeds the allowable range specified in advance for the calculated voltage drop is specified from the transmission / distribution line in the analysis range,
The lightning strike observation area is determined based on the identified transmission / distribution line route,
A device for providing information on the number of lightning strikes . The lightning strike frequency information providing device according to claim 5 , wherein the observation target area determining unit includes:
Both the calculated voltage drop value and the duration of the voltage drop specify a transmission / distribution line that exceeds a pre-specified tolerance range from the transmission / distribution line in the analysis range,
The lightning strike observation area is determined based on the identified transmission / distribution line route,
A device for providing information on the number of lightning strikes . In the lightning strike frequency information providing device according to any one of claims 2 to 6 ,
The transmission line route database stores the position coordinates of each steel tower that supports each transmission and distribution line,
The observation target area determination unit can refer to a latitude / longitude database that defines a coordinate range for each observation target area division of lightning strikes, in which a location area of a transmission / distribution line in which a coordinate system is set is divided into a predetermined shape,
When determining the lightning strike observation area, the location coordinates of the tower that supports the transmission and distribution lines are extracted from the transmission line route database, and a route that is straight between the location coordinates is obtained as the transmission and distribution route. The information on the route is collated with the latitude / longitude database, and the set of lightning observation target area sections crossed by the route is set as the lightning observation target area.
A device for providing information on the number of lightning strikes. In the lightning strike frequency information providing device according to any one of claims 1 to 7 ,
The lightning strike observation conditions include information indicating the lightning strike observation area,
The count processing unit counts the number of lightning strikes for lightning strikes generated in the observation target area. In the lightning strike frequency information providing device according to any one of claims 1 to 8 ,
The lightning strike observation conditions include a reference time that is a reference for determining whether to count the number of lightning strikes,
The count processing unit is included in the lightning count condition acquired from the occurrence date and time included in the observation area, and the occurrence position included in the lightning strike data acquired by the lightning strike data acquisition unit An apparatus for providing information on the number of lightning strikes, wherein the number of lightning strikes is counted once when the number of lightning strikes is not counted in a period that is back by a reference time. In the lightning strike frequency information providing device according to claim 9 ,
The lightning strike data includes a lightning strike current value,
The lightning strike observation conditions include a lightning reference current value that serves as a reference for counting the number of lightning strikes,
The count processing unit provides the number of lightning strikes only when the lightning strike current value included in the lightning strike data is equal to or greater than the reference current value included in the lightning strike observation condition. apparatus. A system for providing information on the number of lightning strikes for providing users with information indicating the number of times of lightning strikes,
When a lightning strike occurs, it is equipped with a lightning strike observation device that detects at least the date and time of occurrence of the lightning strike, and a lightning strike frequency information providing device,
The lightning strike frequency information providing device is:
A customer database in which a customer number is associated with each customer of an electric power company and the identification information of the incoming distribution line or the incoming transmission line is stored;
A facility database in which transmission lines of electric power companies and identification information of electric stations connected to the electric power companies are stored in association with each other;
A transmission line route database storing information representing the route of each transmission line of the power company,
When the voltage of each power transmission line of the electric power company decreases, information indicating the degree of voltage drop generated at each electric power station stores the instantaneous voltage drop impact database for each electric power station,
Can be referred to,
A lightning strike data acquisition unit that obtains lightning strike data including at least the occurrence date and position and the location of occurrence of the lightning strike from the lightning strike observation device,
An observation condition acquisition unit that acquires lightning observation conditions, which are the criteria for determining whether to count the number of lightning strikes, from a user terminal via a network;
A count processing unit that counts the number of lightning strikes based on the lightning strike data acquired by the lightning strike data acquisition unit and the lightning strike observation conditions acquired by the observation condition acquisition unit;
Information indicating a lightning number of times the counting processing unit has counted, have a, an information transmitting unit that transmits to the user terminal,
The lightning strike observation condition includes the identification information of the customer of the electric power company that is the target of counting the number of times of lightning strikes,
Based on the customer identification information, further comprising an observation target area determination unit that determines a lightning observation target area,
The count processing unit counts the number of lightning strikes for lightning strikes occurring in the observation target area determined by the observation target area determination unit,
The observation target area determining unit refers to the customer database from the customer identification information included in the lightning strike observation conditions, identifies the customer distribution line or power transmission line, and refers to the facility database. A power transmission line that identifies an electric station connected to the specified lead-in distribution line or lead-in power transmission line and refers to the instantaneous power drop influence degree database for each electric station, and influences a voltage drop on the specified electric station Providing the number of times of lightning strikes , referring to the transmission line route database, obtaining the route of the identified transmission line, and determining a lightning strike observation area based on the route of the transmission line system. A method for providing information on the number of lightning strikes that provides information indicating the number of lightning strikes to a user,
A customer database in which a customer number is associated with each customer of an electric power company and the identification information of the incoming distribution line or the incoming transmission line is stored;
A facility database in which transmission lines of electric power companies and identification information of electric stations connected to the electric power companies are stored in association with each other;
A transmission line route database storing information representing the route of each transmission line of the power company,
When the voltage of each power transmission line of the electric power company decreases, information indicating the degree of voltage drop generated at each electric power station stores the instantaneous voltage drop impact database for each electric power station,
The computer that can see
A lightning strike data acquisition step for acquiring lightning strike data including at least the occurrence date and position of the lightning strike;
The lightning observation conditions as the determination of whether the reference for counting the lightning number from the user terminal and the observation condition acquisition step of acquiring from the network,
A lightning strike data acquired in the previous SL lightning data acquisition step, and counting processing step based on the lightning observation condition acquired by the observation condition acquisition step, counting the lightning number,
Information indicating the number of lightning strikes counted in the counting process step, an information transmission step for transmitting to the user terminal,
Equipped with a,
The lightning strike observation condition includes the identification information of the customer of the electric power company that is the target of the number of times of lightning strikes,
The computer further comprises an observation target area determining step for determining a lightning strike observation target area based on the identification information of the customer,
In the counting process step, the number of lightning strikes is counted for lightning strikes occurring in the observation target area determined in the observation target area determination step,
In the observation area determination step, from the customer identification information included in the lightning strike observation conditions, the customer database is referred to, the customer's service distribution line or service power transmission line is identified, and the facility database is referred to. A power transmission line that identifies an electric station connected to the specified lead-in distribution line or lead-in power transmission line and refers to the instantaneous power drop influence degree database for each electric station, and influences a voltage drop on the specified electric station , And by referring to the transmission line route database, obtaining the route of the identified transmission line, and determining a lightning strike observation area based on the transmission line route .