JP5036776B2 - Blackout plan evaluation system and blackout plan evaluation program - Google Patents

Description

The present invention relates to a power outage plan evaluation system and a power outage plan evaluation program for evaluating a power outage plan.

  Entities that supply power to consumers, such as power companies, maintain and manage various facilities. Specifically, there are a work for replacing the electric wire and a work for replacing the electric pole supporting the electric wire.

  When such work is performed, a power outage is involved. Therefore, in the sales office of the electric power company, a person in charge formulates a power outage plan representing the schedule of the work involving the power outage, for example, one month in advance. Since the burden on the person in charge for formulating such a power outage plan in advance is large, there is a system for formulating a power outage plan (see, for example, Patent Document 1). In this system, the work execution date is adjusted so as to reduce the number of annual power outages of consumers who receive power supply. Also, adjust the power outage period of the equipment, that is, the power outage period of the customer to be shortened by carrying out multiple tasks that have the same equipment such as transformers that are out of power. .

JP 2008-29103 A

  However, the system described above has the following problems. The previous system adjusts the work to reduce the number of annual power outages of consumers, that is, adjusts the work in consideration of the restrictions on the side that receives power supply, but the restrictions on the side that supplies power, for example, power distribution Work with consideration of constraints such as restrictions on power outage plans and the availability of workers and equipment required for work when power is supplied to customers by a system different from the regular system by an automated system. It cannot be adjusted.

The object of the present invention is to solve the above-mentioned problems, consider restrictions by consumers, consider various restrictions on the power supply side, etc., and evaluate a power outage plan evaluation for work involving power outages To provide a system and blackout plan evaluation program.

In order to solve the above-mentioned problem, the invention of claim 1 is a power outage plan evaluation system for a power outage plan that represents a schedule of work involving a power outage, which is a constraint on the power outage plan, and A storage means for storing facility data indicating power distribution system data, equipment usage status, equipment rating, etc. and constrained by requirements, and power failure plan is input, the constraint and input customer, based on the constraints and stored in the storage means, along with determining the quality of the power outage planning, the outage planning The line method of the power outage range is examined based on the distribution system data, and when the line method is a dendritic line, the power transmission method is determined based on the distribution system data and the use state of the equipment, If the expression is a loop-shaped line is a power failure plan evaluation system, characterized in that it and a process of determining means whether backhaul is possible based on the facility data.

According to the first aspect of the present invention, the storage means stores in advance the restrictions on the power outage plan and the restrictions due to the work at the electric station and the restrictions due to the facility for sending electric power from the electric station to the consumer. On the other hand, the restriction due to the demand of the customer and the power outage plan are input to the processing means. Thereafter, the processing means determines whether the power outage plan is good or not based on the input consumer restrictions and the respective restrictions stored in the storage means. Furthermore, the processing means examines the line method of the power outage range of the power outage plan based on the distribution system data, determines the power transmission method when the line method is a dendritic line, and when the line method is a loop line Determines whether or not reverse feed is possible.

  The invention according to claim 2 is the power failure plan evaluation system according to claim 1, wherein the storage means is a check of equipment installed at the electric station as a restriction by the equipment that sends power from the electric station to the consumer. It stores at least one of a restriction due to work, a restriction due to operation of the distribution automation system, and a restriction due to work such as inspection of equipment installed in the distribution line.

  According to a third aspect of the present invention, in the power outage plan evaluation system according to the first or second aspect, the storage unit stores a restriction depending on a time when the power consumption reaches a peak, and the processing unit determines whether the power outage plan is good or bad. In this case, the storage unit stores a restriction due to the peak time of power consumption stored in the storage unit.

  According to a fourth aspect of the present invention, in the power outage plan evaluation system according to any one of the first to third aspects, the storage means stores restrictions due to social events such as events, and the processing means In determining whether the plan is good or bad, a restriction by a social event stored in the storage means is included.

The invention of claim 6 is a power outage plan evaluation program for a power outage plan representing a schedule of work accompanied by a power outage, which is a restriction on the power outage plan, a restriction due to work at the electric station, and a demand from the electric station. Received restrictions on facilities that send power to the house, processing to store equipment data indicating distribution system data, equipment usage status, equipment ratings, etc., processing to receive restrictions on demand from customers and power outage plans, and received Based on the customer's constraints and each stored constraint, whether the received power outage plan is acceptable or not is determined , and the line method of the power outage range of the power outage plan is examined based on the power distribution system data. If the line system is a loop line, the power transmission method is determined based on the distribution system data and the usage state of the equipment. Feeding a power outage planning evaluation program for executing a process of determining, to the computer or can be or not.

According to the first and fifth aspects of the present invention, whether the power outage plan is good or bad is determined based on the restriction due to the demand of the customer who receives the power supply and the various restrictions on the power supply side. In the case of a power outage plan, it is possible to formulate a power outage plan that reflects the constraints. Further, in the power outage range according to the power outage plan, it is possible to automatically determine the power transmission method for the dendritic line, and it is possible to automatically determine whether the reverse transmission is possible for the loop line.

  According to the invention of claim 2, it is possible to determine whether the power failure plan is good or bad, including the operation state of the distribution automation system and the work such as the inspection of the equipment installed in the distribution line.

  According to the third and fourth aspects of the invention, it is possible to determine whether the power outage plan is good or bad, including restrictions due to peak periods of power consumption and restrictions due to social events such as events.

It is a block diagram which shows the power failure plan evaluation system by Embodiment 1. It is explanatory drawing for demonstrating a power distribution system. It is a figure which shows an example of electric power station work data. It is a figure which shows an example of power station work performance data. It is a figure which shows an example of driving | operation restrictions data. It is a figure which shows an example of electric power peak data. It is a figure which shows an example of apparatus maintenance inspection data. It is a figure which shows an example of equipment rotation data. It is a figure which shows an example of event data. It is a figure which shows an example of worker data. It is a flowchart which shows an example of a power failure plan evaluation process. It is a flowchart which shows an example of a power failure plan evaluation process. It is a figure of the high voltage distribution line explaining an example of a power failure plan. It is a figure of the high voltage distribution line explaining another example of a power failure plan. It is a figure of the high voltage distribution line explaining another example of a power failure plan. 10 is a flowchart illustrating an example of change processing according to the second embodiment. 12 is a flowchart illustrating an example of a power transmission examination process according to the third embodiment.

  Next, embodiments of the present invention will be described in detail with reference to the drawings.

(Embodiment 1)
An example of a power outage plan evaluation system according to this embodiment is shown in FIG. The power failure plan evaluation system in FIG. 1 includes a database server (DB) 1 and a storage device 1A, a power distribution automation system 2, and business computers 3 _{1 to} 3 _n . The database server 1, the distribution automation system 2, and the business personal computers 3 _{1 to} 3 _n are connected to the communication network NW and are in a state where data communication is possible. The communication network NW is a communication network including a WAN (Wide Area Network) built in a company and a LAN (Local Area Network) built in one building or the like.

  The distribution automation system 2 is installed at a sales office of an electric power company, and performs remote monitoring control of the distribution system 100 that supplies power to the customer 200 as shown in FIG. In addition, the power distribution system 100 of FIG. 2 shows an example.

  Here, the power distribution system 100 will be described. In the distribution system 100, distribution transformers 111 and 121 and distribution circuit breakers 112 and 122 are installed at the A substation and B substation for distribution of the power company. Distribution lines 130 and 140 are installed from the load side of the circuit breakers 112 and 122, respectively. That is, the voltage from the transformers 111 and 121 is supplied to the distribution lines 130 and 140. The voltage and current states of the distribution lines 130 and 140 are monitored by the distribution automation system 2 and the opening or closing of the circuit breakers 112 and 122 is controlled. That is, the circuit breakers 112 and 122 are remotely monitored and controlled by the distribution automation system 2.

  Distribution lines 130 and 140 of distribution system 100 are divided into a plurality of sections by normally closed line switches 131 and 141. The switches 131 and 141 are also remotely monitored and controlled by the distribution automation system 2 in the same manner as the circuit breakers 112 and 122. In the power distribution system 100, the distribution line 130 and the distribution line 140 are interconnected. For this reason, in the power distribution system 100, the distribution line 130 and the distribution line 140 are connected to each other via the interconnection switch 151. Similarly to the circuit breakers 112 and 122, the switch 151 is subject to remote monitoring control by the power distribution automation system 2.

  The distribution automation system 2 that performs remote monitoring control of the distribution system 100 monitors an accident or the like that occurs in the distribution system 100, and controls the switches 131 and 141 when an accident or the like occurs in the distribution system 100. Disconnection of the power, for example, the switch 151 is controlled to reversely transfer the power. For this purpose, the distribution automation system 2 performs remote monitoring control of the circuit breakers 112 and 122 and the switches 131, 141 and 151 via the communication network NW. Then, the power distribution automation system 2 records the monitoring results and control results of the remote monitoring control in, for example, the database server 1.

The database server 1 manages a storage device 1A that stores various data. The database server 1 stores data from the business personal computers 3 _{1 to} 3 _n and data of the power distribution automation system 2 in the storage device 1A. The data stored in the storage device 1A by the database server 1 includes distribution system data for each area. The distribution system data includes, for example, data for the entire distribution system 100 shown in FIG. 2 and data for each feeder at each substation.

  Data stored in the storage device 1A by the database server 1 includes power station work data. The power station work data is data representing the work schedule of this fiscal year at a substation and the like, for example, data representing the maintenance and inspection work of the transformer 111 at the A substation and the transformer 121 at the B substation. These tasks were created at the beginning of the year. An example of power plant work data is shown in FIG. In the power station work data, the date of work, the time zone from the start to the end of work, the place where the work is performed, the target of the work, the content of the work, and the like are recorded.

  Data stored in the storage device 1A by the database server 1 includes power plant work performance data. The power plant work performance data is data representing past work at the power plant. An example of this power plant work performance data is shown in FIG. In this power station work performance data, the work place, work object and work content are recorded, and further, substations and distribution lines related to the reverse transmission of power to prevent power outage during work are related to the substation, Recorded as related distribution line.

  Data stored in the storage device 1A by the database server 1 includes operation restriction data. The operation constraint data is stored based on the past work and the operation of the distribution automation system 2 when the operation restriction is performed at the substation. An example of this operation restriction data is shown in FIG. The operation restriction data includes the date and place where the work was performed, the start time of the work for system switching, and the control of each switch by the remote monitoring control of the power distribution automation system 2, and the system switching Is recorded.

  Data stored in the storage device 1A by the database server 1 includes power peak data. The power peak data stores the winter and summer seasons when power consumption increases throughout the year. An example of this power peak data is shown in FIG. In this power peak data, the date and time zone at which the power consumption reaches a peak, the power consumption at that time, and the like are recorded.

  Data stored in the storage device 1A by the database server 1 includes equipment maintenance inspection data. The equipment maintenance / inspection data stores the time of maintenance / inspection of the utility pole and the distribution line equipment installed in the utility pole. An example of the equipment maintenance inspection data is shown in FIG. This equipment maintenance inspection data includes the date on which the maintenance inspection is scheduled for the distribution line equipment, the pole number of the distribution tower where the work is performed, the distribution line equipment and work contents to be worked on, and the power outage due to maintenance inspection. , A route related to the reverse transmission of power (hereinafter referred to as “reverse transmission related route”) is recorded.

  Data stored in the storage device 1A by the database server 1 includes equipment rotation data. The equipment rotation data stores the use state of equipment such as a low-voltage generator vehicle that supplies low-voltage power to consumers during work. An example of this equipment rotation data is shown in FIG. In the equipment rotation data, uninterruptible equipment managed at the sales office, telephone pole number indicating the work place, date when the equipment is used and time zone used are recorded.

  Data stored in the storage device 1A by the database server 1 includes event data. The event data stores social events such as year-round events such as entrance ceremony, and sudden events such as elections. An example of this event data is shown in FIG. In the event data, the name of the event, the date and time zone when the event is performed, the district where the event is performed, and the like are recorded.

  Data stored in the storage device 1A by the database server 1 includes worker data. The worker data stores the work state of each worker. An example of this worker data is shown in FIG. In the worker data, the name of the worker, the date and time of the work, the district where the work is performed, and the like are recorded.

The business personal computers 3 _{1 to} 3 _n are used when a person in charge performs business, and are placed at each sales office, for example. Since the business PC 3 ₁ to 3 _n the same configuration, the following describes the operational computer 3 ₁ as a representative example. Business PC 3 ₁ is a computer operated by the person, the communication unit 3A, the input section 3B, processor 3C, comprises essentially a storage unit 3D, and a display unit 3E.

  The communication unit 3A enables data communication with the communication network NW under the control of the processing unit 3C. The communication unit 3A enables data communication with the database server 1 and the distribution automation system 2. The input unit 3B is an input device operated by a person in charge such as a mouse or a keyboard. Various instructions and the like are input by operating the input unit 3B. The display unit 3E is a display device such as an LCD (liquid crystal display) that displays various data and the like under the control of the processing unit 3C.

Storage unit 3D is, and a variety of programs that require the business personal computer 3 _1, and stores the data. The data stored in the storage unit 3D includes various types of data such as distribution system data of an area managed by the sales office. The storage unit 3D reads and stores the latest data from the database server 1 or the like under the control of the processing unit 3C.

The processing unit 3C executes various programs stored in the storage unit 3D. The program executed by the processing unit 3C includes a power outage plan evaluation program. This program, the person in charge is started by operating the business PC 3 _1. When the person in charge operates the input unit 3B to start the power outage plan evaluation program, the processing unit 3C performs the power outage plan evaluation process shown in FIG. 11 and FIG. 3 C of processing parts will display the input screen which inputs the fixed item of a power failure plan, if a power failure plan evaluation process is started (step S1). In step S1, the processing unit 3C inputs an input for inputting a work date including a power outage, for example, a work date for rebuilding a utility pole, and a work time zone including a start time zone of a preparatory work and a time zone of a power outage. The screen is displayed by controlling the display unit 3E. These items are fixed items of work planned in advance. The processing unit 3C receives these work date and work time zone in step S1.

  When the processing unit 3C receives the work date and the work time zone in step S1, the processing unit 3C determines whether there is a restriction due to a location related to the power outage plan (step S2). In step S2, the processing unit 3C refers to the power station work data stored in the storage unit 3D, which is data in the storage device 1A of the database server 1, and the work date and work time input in step S1. Check if there is power station work corresponding to the belt. When there is a corresponding power station work, the processing unit 3C refers to the power station work result data stored in the storage unit 3D, which is data in the storage device 1A of the database server 1, and is a line related to reverse transmission. That is, the relevant part is stored as constraint data in the storage unit 3D (step S3).

  When step S3 ends, the processing unit 3C determines whether or not there are restrictions due to the operation of the distribution automation system 2 (step S4). In step S4, the processing unit 3C determines whether or not the restriction due to the system switching of the power distribution automation system 2 is caused by the work time zone received in step S1 and the related part stored in step S3. The determination is made with reference to the driving restriction data stored in the storage unit 3D, which is data in the storage device 1A.

  For example, the distribution automation system 2 controls the switches 131, 141, and 151 of the distribution system 100 so as to reverse the power transmission in accordance with the inspection of the transformer 112 of the A substation. There is a time zone to do. For example, when there is work at the A substation, the switch automation 131, 141, 151 may be switched by the distribution automation system 2 and power may be supplied to the customer by reverse transmission. In this case, the power failure operation cannot be performed when the switches 131, 141, 151 are switched, and if the power failure operation is performed, the power failure range may be expanded. Such restrictions are caused by the operation of the distribution automation system 2.

  When a restriction occurs in step S4, the processing unit 3C stores, in the storage unit 3D, the relational substation related to the reverse transmission of power by the distribution automation system 2 and the time zone where the operation restriction occurs as restriction data. Store (step S5).

  If step S5 is completed, if there is no restriction due to the relevant part in step S2, or if there is no restriction due to operation in step S4, whether or not the processing unit 3C is restricted by the time when the consumed power peaks. Is determined (step S6). In step S6, the processing unit 3C refers to the power peak data stored in the storage unit 3D, which is data of the storage device 1A of the database server 1 based on the work date received in step S1. It is determined whether the work date falls within the peak power period. When it corresponds to the power peak time in step S6, the processing unit 3C stores a warning display indicating that it corresponds to the power peak time in the storage unit 3D as constraint data (step S7).

  When step S7 ends or when there is no power peak restriction in step S6, the processing unit 3C determines whether or not there is a restriction due to maintenance and inspection of the power distribution equipment (step S8). In step S8, the processing unit 3C refers to the device maintenance inspection data stored in the storage unit 3D, which is data of the storage device 1A of the database server 1, based on the work date received in step S1. It is determined whether the work date corresponds to the time of maintenance inspection of the power pole and the maintenance inspection of the equipment installed on the power pole. If the processing unit 3C determines that the maintenance check is restricted, the processing unit 3C reads a reverse transmission-related route for preventing a power failure due to the maintenance check from the device maintenance check data, and stores it in the storage unit 3D as the restriction data (step S9).

  When step S9 ends or when there is no maintenance inspection restriction in step S8, the processing unit 3C determines whether or not there are restrictions on the equipment used for the work (step S10). In step S10, the processing unit 3C refers to the equipment rotation data stored in the storage unit 3D, which is data of the storage device 1A of the database server 1, based on the work date received in step S1, and Determine whether there is equipment used in another task. If it is determined that the necessary equipment is not available and there is a restriction on the equipment, the processing unit 3C stores the equipment used in another work in the work time zone of the day as restriction data in the storage unit 3D.

  If step S11 is completed, or if there is no equipment restriction in step S10, the processing unit 3C is subject to restrictions such as an annual event such as an entrance ceremony or an unexpected event such as an election. Is determined (step S12). In step S12, the processing unit 3C refers to the event data stored in the storage unit 3D, which is data in the storage device 1A of the database server 1, based on the work date received in step S1, and It is determined whether or not there is an event restriction in the corresponding time zone. If it determines with there being restrictions by an event, 3C of processing will memorize | store the date and time slot when an event is performed in memory | storage part 3D as restrictions data (step S13).

  When Steps S2 to S13 for examining various restrictions by the electric power company and restrictions by social events are completed, the processing unit 3C displays an input screen for inputting work contents of the power outage plan (Step S14). In step S14, the processing unit 3C inputs a time zone for performing a power outage operation, an input of a power outage time zone by a hot-line cutting operation, an input of an uninterruptible construction method for performing the operation uninterrupted, Control the display unit 3E to display a screen for inputting, entering the number of equipment, entering the number of workers required for the work, and entering a spare day when hot-line cutting is not possible due to rain. To do. Furthermore, a screen for inputting the schedule and the number of workers necessary for the post-construction is displayed. Then, the processing unit 3C receives the data input to the input unit 3B according to the input screen in step S14 and stores it in the storage unit 3D. In addition, a hot wire edge cutting operation is an operation of cutting a high-voltage distribution line.

  After step S14, the processing unit 3C displays an input screen for inputting the demand of the customer (step S15). In step S15, the person in charge at the sales office inquires in advance about the customer who will be out of power, and a screen for inputting the date when the power outage is possible and the time zone, the day when the power outage is impossible and the time zone. The processing unit 3C controls and displays the display unit 3E. When the processing unit 3C receives data input to the input unit 3B according to the input screen, the processing unit 3C stores the received data.

  When step S15 ends, the processing unit 3C determines whether the power outage plan is acceptable (step S16). In step S16, the processing unit 3C determines whether or not there are various restrictions determined in steps S2 to S12, the restrictions based on the work content input in step S14, and the restrictions imposed by the consumer input in step S15. Check whether the power outage plan is good or not depending on whether it is applicable. That is, the processing unit 3C determines that the power outage plan is good when all the constraints are not present, and determines that the power outage plan is defective when there is even one applicable constraint. When it is determined in step S16 that the power outage plan is defective, the processing unit 3C reads the corresponding constraint data from the storage unit 3D (step S17). Thereafter, the processing unit 3C outputs a constraint on the power outage plan based on the read constraint data (step S18).

  In step S18, the processing unit 3C controls the display unit 3E to output a message indicating that the power outage plan is defective and the content of the constraint. For example, when there is work at an electric station, a line related to reverse transmission, that is, a related part is output. In addition, if there is a reverse transmission by the distribution automation system 2, a related substation related to the reverse transmission of electric power by the distribution automation system 2 and a time zone in which the operation restriction occurs are output. In the same way, the warning indication of power peak, the contents of restrictions on maintenance and inspection, the equipment subject to restrictions, the contents of events to be held, etc. are output. If there is a restriction due to the work content, the corresponding restriction is output. If there is no input of the spare day, a caution is output. Furthermore, if there is a restriction due to the demand of the customer, the corresponding restriction is output.

Thus, output of Step S18 is optional, is to be output to any content may be set for example by the business computer 3 _1.

  On the other hand, if there is no restriction on the power outage plan in step S16, a message indicating no restriction is output (step S19). When step S19 or step S18 ends, the processing unit 3C ends the power outage plan evaluation process. In this way, the processing unit 3C outputs the determination result of whether or not the power failure plan is good, taking into consideration both the various restrictions on the electric power company side and the conditions on the customer side.

Next, a power failure plan evaluation method using the power failure plan evaluation system according to this embodiment will be described. After the drafting of a power outage plan, the person in charge operates, for example, the business PC 3 _1, and launch a power outage plan evaluation program, business personal computer 3 ₁ starts the power outage plan evaluation process. When the business PC 3 ₁ displays the input screen, the person in charge to enter and work time zone as the work day with a power outage plan. Thus, the business PC 3 _1, constrained by the relationship points associated with working in substation performed the day with planned for the beginning of the year (first constraint), limited by the operation of the distribution automation system 2 (second Restrictions), restrictions due to power consumption peaks occurring in winter and summer (third restriction), restrictions due to maintenance and inspection of power poles and equipment installed on power poles (fourth restriction) It is determined whether or not the equipment used on the day is subject to restrictions (fifth restriction) due to use in another work and restrictions (sixth restriction) due to events such as elections.

After this, the business PC 3 ₁ displays the input screen for input on the work by the power outage plan. When the business PC 3 ₁ displays the input screen, the work content to be carried out by a power outage plan, for example a power failure to date, and time zone, equipment you need, the number, the person in charge to enter and engage in work force to work. In addition, business personal computer 3 ₁ displays an input screen for inputting the needs of consumers. When the business PC 3 ₁ displays the input screen, which is the content of the inquiry in advance customers, possible date and the time zone of a power failure, the person in charge of the impossible date and the time zone of a power failure to enter.

When these input is completed, the business PC 3 _1, based on each constraint and it is determined previously, and constrained by the work that has been input (seventh of constraints) and constraints at the request of the customer (eighth constraints) Next, the quality of the power outage plan is judged and the judgment result is output.

  For example, as shown in FIG. 13, there is a case where the section SE <b> 1 is blacked out and the “trunk 5” utility pole of the “◯ line”, which is a high-voltage distribution line, is rebuilt. In addition, there is a maintenance work for the transformer that sends power to the B feeder at the A substation at the same time zone on the same day of this construction, and the system is scheduled to be sent back to the transformer that has stopped.

When there is such a power outage plan, the person in charge to start the power outage plan evaluation program using the business PC 3 _1. As a result, the business PC 3 _1, and the input screen of the defined item, and the input screen to enter your work, sequentially displaying the input screen for inputting the needs of customers, receive the input data. In this power outage plan, in the same time zone of the same day, there is a maintenance of the transformer in the substation A, since it is expected to reverse feeding the grid until the transformer has been stopped, business personal computer 3 _1, substation A message indicating that there is a restriction (first restriction) due to a relational part related to the work in (1) and a restriction (second restriction) due to operation of the distribution automation system 2 and that the power outage plan is bad , Output applicable constraints.

That is, by the business computer 3 ₁ refers to a power plant operation data, it is found that there is work in A substation further by reference to the power plant work record data, backhaul lines (high voltage distribution lines It is clear that there is a utility pole on the “○ line”), and the construction is subject to restrictions by the relevant places. As a result, business personal computer 3 ₁ outputs the relationship between points (high-voltage distribution line "○ line") constraints as (first constraint).

Moreover, the business PC 3 ₁ refers to the operational constraint data, it is found that restricted by operation of distribution automation systems 2. As a result, the business PC 3 _1, and time zone switch is opened and closed by distribution automation system 2, and a relationship substations, and outputs as a constraint by the driver of the distribution automation system 2 (the second constraint).

As a result, the following items are considered for the power outage plan.
a. As the transformer of the A substation is stopped, there is a system switching work by the distribution automation system 2, and the work becomes congested. The plan cannot simultaneously switch systems due to power outage work. For example, there is a possibility that the operation time is delayed at the site and the switch 131 becomes inoperative. For this reason, it is necessary to perform construction after the system switching by the distribution automation system 2.
b. By switching the system with the distribution automation system 2, the operator is confused in an emergency such as a distribution line accident to work in a different environment from the normal system, so that accurate judgments can be made for restoration of the system. There is also the possibility of trouble.

As a result of these studies, based on the output of the business PC 3 _1, carried out in the advance work of "stem 5" utility pole "○ line" of high-voltage distribution line different days, to allow the determination that. At the same time, on the basis of the output of the business PC 3 _1, to enable the development of another power outage plan.

  For example, as shown in FIG. 14, there is a case where the section SE <b> 2 is blacked out and the “branch 7 right 3” utility pole of the “□ line” of the high-voltage distribution line is rebuilt as shown in FIG. 14. In addition, there is a transformer maintenance work at the A substation at the same time zone on the same day of this construction, and the system is scheduled to be sent back to the transformer that has stopped.

When there is such a power outage plan, the person in charge to start the power outage plan evaluation program using the business PC 3 _1. As a result, the business PC 3 _1, and the input screen for the fixed item, and the input screen to enter your work, sequentially displaying the input screen for inputting the needs of customers, receive the input data. In this power outage plan, in the same time zone of the same day, there is a maintenance of the transformer in the substation A, since it is expected to reverse feeding the grid until the transformer has been stopped, business personal computer 3 _1, substation A message indicating that there is a restriction (first restriction) due to a relational part related to the work in (1) and a restriction (second restriction) due to operation of the distribution automation system 2 and that the power outage plan is bad , Output applicable constraints.

As a result, the following items are considered for the power outage plan.
a. As the transformer at the A substation is stopped, switching from the grid is being carried out at all times.
a1. Power outage using existing line switch a2. Power transmission after construction section using high voltage bypass cable a3. Driving a high-voltage generator car and transmitting power after the construction section a4. Operate a low-voltage generator car and transmit power individually to places where power outages are not possible

From the examination results and the output of the operational computer 3 ₁ of the a, but to implement the system switching by distribution automation systems 2, because the section SE2 are dendritic line, it can correspond only enters-cutting of the switch Yes, allowing a determination that a power outage plan is feasible.

  For example, as shown in FIG. 15, there is a case where the section SE3 is subjected to a power failure and the “branch 3 right 3” utility pole of the “□ line” of the high-voltage distribution line is rebuilt as shown in FIG. In this case, the “branch 3 right 2” utility pole does not have an existing line switch, and it is necessary to attach a switch in advance.

When there is such a power outage plan, the person in charge to start the power outage plan evaluation program using the business PC 3 _1. As a result, the business PC 3 _1, and the input screen for the fixed item, and the input screen to enter your work, sequentially displaying the input screen for inputting the needs of customers, receive the input data. At this time, the following matters are considered.

a. Schedule the preparatory work schedule and secure the following necessary equipment.
a1. Securing equipment for uninterruptible construction a2. Securing personnel to form work groups a3. Securing work time b. From the following matters, the schedule for the high-voltage power outage work, which is the main work, and the power outage time zone are determined.
b1. Power outage time relative to work scale, work team organization scale b2. One team works to rebuild one utility pole b3. Division of work scale and reduction of power outage section according to the time of power outage c. Consider post-construction.
As a result of such examination, the necessary equipment, the number of workers, and the like are input on the input screen for inputting the work content. It should be noted that in the post-construction work of c above, measures in case of rainy weather and the schedule of equipment margin when many equipment are used are also considered.

After this, if it is clear the convenience of equipment and workers, business personal computer 3 _1, a power outage plan is good, and outputs a determination result that.

  As work by the power failure plan, for example, as shown in FIG. 13 above, there is a case where the section SE1 is subjected to a power failure and the “trunk 5” utility pole of the “◯ line” which is the high-voltage distribution line is rebuilt. This construction is in August, and it is expected that a peak of power consumption will occur.

When there is such a power outage plan, the person in charge to start the power outage plan evaluation program using the business PC 3 _1. As a result, the business PC 3 _1, and the input screen for the fixed item, and the input screen to enter your work, sequentially displaying the input screen for inputting the needs of customers, receive the input data. In this power outage plan, is performed at a time when the peak of the power consumption of the rebuilding of utility poles occurs, the business PC 3 _1, power consumption of the constraints imposed by the peak (third constraints) determines that there is a power failure plan is bad A message indicating that there is a message and a caution display indicating that the work corresponds to a power peak time are output.

As a result, the following items are considered for the power outage plan.
a. It is confirmed whether the power failure point (section SE3) is a dendrite line or a loop line.
b. Since the construction work is performed during the peak power consumption period, the construction time zone and the power failure time are determined in consideration of the peak time zone.
c. Since it is the power peak time of power consumption and the amount of power increases, the allowable current of the entire distribution line is confirmed.
d. If it is a loop line, consider the following items and consider the power transmission method other than the construction section.
d1. Does it exceed the allowable current of the high voltage line? D2. Does it exceed the allowable current of the line switch? D3. Does it exceed the allowable current of the automatic voltage regulator for the line? D4. Does the distribution transformer in the substation that accommodates power have sufficient capacity d5. Whether the ultimate voltage can be maintained properly (is there a problem with the voltage drop)?
From the result of the study of d above, if power cannot be transmitted outside the construction section, the following judgment is made.
e1. Change construction time when electricity demand is low e2. Change construction days on Saturdays, Sundays and public holidays when power demand is low e3. Change work hours in the early morning and late at night when power demand is low. E4. A minimum of construction and temporary construction related construction design contents of change these study results, such as, on the basis of the output of the business PC 3 _1, to enable the development of a power outage plan.

  As described above, according to this embodiment, whether or not the power outage plan is good is determined in consideration of both the restrictions on the customer side and the various restrictions on the power company side, and also in consideration of social events. be able to. In addition, if the power outage plan is defective, the corresponding restriction is output, so that it is possible to formulate a power outage plan that is not subject to the restriction.

(Embodiment 2)
In this embodiment, the power outage plan evaluation program of Embodiment 1 is as follows. In this embodiment, components that are the same as or the same as those in the first embodiment described above are denoted by the same reference numerals, and description thereof is omitted. In this embodiment, when step S18 or step S19 of the power outage plan evaluation process is finished, the processing unit 3C performs the change process shown in FIG. When the change process is started, the processing unit 3C uses the calendar function to set the N days before and the N days after the date input in step S1 to the planned change date (step S41).

  Thereafter, the processing unit 3C selects the first day from each plan change date (step S42), and performs a confirmation process (step S43). In step S43, the processing unit 3C performs steps S2 to S18 of the power outage plan evaluation process. Thereafter, the processing unit 3C determines whether there is an unselected day in step S42 among the plan change dates set in step S41 (step S44). If there is an unselected plan change date, the processing unit 3C selects the next plan change date (step S45), and returns the process to step S43. If there is no unselected plan change date, the processing unit 3C finishes the change process and ends the power outage plan evaluation program.

  Thus, according to this embodiment, if the previous N days and the subsequent N days are designated with respect to the scheduled power outage date, the power outage plan is judged as good or bad for each day, and applicable when the power outage plan is bad. Since the restriction to output is output, it is possible to easily formulate a day when the power outage work can be performed in addition to the scheduled power outage day.

(Embodiment 3)
In this embodiment, the power outage plan evaluation program of Embodiment 1 is as follows. In this embodiment, components that are the same as or the same as those in the first embodiment described above are denoted by the same reference numerals, and description thereof is omitted. In this embodiment, when step S18 or step S19 of the first embodiment is completed, or when there is no next plan change date in step S44 of the second embodiment, the processing unit 3C performs power transmission shown in FIG. Perform the review process. When the processing unit 3C starts the power transmission examination process, the processing unit 3C checks the line system in the power failure range (step S61). In step S61, the processing unit 3C refers to the data of the storage device 1A of the database server 1 and the distribution system data and the like stored in the storage unit 3D.

  When the line method is a dendritic line, the processing unit 3C determines whether or not a power failure occurs using an existing line switch (step S62). In step S62, the processing unit 3C refers to the distribution system data and the like. When a power failure does not occur using the switch, the processing unit 3C determines whether to transmit power after the construction section using the high-pressure bypass cable (step S63). In step S63, the processing unit 3C refers to the equipment rotation data and the like. When the high-pressure bypass cable is not used because the high-pressure bypass cable cannot be procured, the processing unit 3C determines whether to operate the high-voltage generator vehicle and transmit power after the construction section (step S64). In step S64, the processing unit 3C refers to the equipment rotation data and the like. When the high-voltage generator vehicle is not operated because the high-voltage generator vehicle cannot be procured, the processing unit 3C determines whether to operate the low-voltage generator vehicle and transmit power after the construction section (step S65). In step S65, the processing unit 3C refers to the equipment rotation data and the like.

  When using a switch in step S62, using a high-pressure bypass cable in step S63, operating a high-voltage generator vehicle in step S64, or operating a low-voltage generator vehicle in step S65, the processing unit 3C A message indicating these power transmission methods is output.

  On the other hand, when the line system is a loop line, the processing unit 3C determines whether or not the allowable current of the high voltage line is exceeded (step S67). In step S <b> 67, the processing unit 3 </ b> C refers to the facility data that represents the rating of the facility and the like collected from the company that provides each facility. In the following steps, the processing unit 3C refers to the equipment data. When the allowable current of the high voltage line is not exceeded, the processing unit 3C determines whether or not the allowable current of the line switch is exceeded (step S68). When the allowable current of the switch is not exceeded, the processing unit 3C determines whether or not the allowable current of the line automatic voltage regulator is exceeded (step S69). When the allowable current of the automatic voltage regulator is not exceeded, the processing unit 3C determines whether or not there is a surplus in the distribution transformer of the substation that accommodates power (step S70). When there is a surplus capacity in the transformer, the processing unit 3C determines whether the ultimate voltage can be maintained appropriately, that is, whether there is no problem with the voltage drop (step S71). When the ultimate voltage is appropriate in step S71, the processing unit 3C outputs a message capable of reverse transmission (step S72).

  In step S65, if the low-voltage generator car is not operated because the low-voltage generator car cannot be procured, if the allowable current of the high-voltage line is exceeded in step S67, if the allowable current of the line switch is exceeded in step S68, If the allowable current of the automatic voltage regulator for the line is exceeded in step S69, if there is no remaining power in the distribution transformer of the substation accommodating power in step S70, if the ultimate voltage cannot be maintained properly in step S71, The processing unit 3C outputs a message indicating that reverse sending is not possible (step S73).

  When step S66, step S72, or step S73 ends, the processing unit 3C ends the power transmission review process.

  Thus, according to this embodiment, in the power outage range according to the power outage plan, it is possible to automatically determine the power transmission method for the dendritic line and to automatically determine whether the reverse transmission is possible for the looped line. enable.

  The present invention is not limited to the case of power supply, and can also be used to formulate a plan to stop and work when supplying gas and water.

DESCRIPTION OF SYMBOLS 1 Database server 1A Storage device 2 Power distribution automation system 3 _{1-3 n} Business personal computer 3A Communication part 3B Input part 3C Processing part (processing means)
3D storage unit (storage means)
3E display

Claims (5)

A power outage plan evaluation system for a power outage plan representing a work schedule involving a power outage,
It stores restrictions on power outage plans, restrictions on work at electric power stations, and restrictions on equipment that sends power from electric power stations to consumers, as well as information on distribution system data, equipment usage, equipment ratings, etc. Storage means for storing equipment data to be represented ;
A constraint at the request of the customer, and a power failure plan is input, the constraint and input customer, based on the constraints and stored in the storage means, along with determining the quality of the power outage planning, The line system in the power outage range of the power outage plan is examined based on the power distribution system data, and when the line system is a dendritic line, the power transmission system is determined based on the power distribution system data and the usage state of the equipment. In the case where the line system is a loop line, processing means for determining whether reverse transmission is possible based on the equipment data ;
A power outage plan evaluation system characterized by comprising: The storage means is installed in the distribution line as a restriction due to equipment that sends power from the electric station to the consumer, due to work such as inspection of the equipment installed in the electric station, restriction due to operation of the distribution automation system, and so on. Remembers at least one of the constraints due to the inspection of the equipment
The power outage plan evaluation system according to claim 1 characterized by things. The storage means stores a restriction due to a time when power consumption reaches a peak,
The processing means includes a restriction due to peak time of power consumption stored in the storage means when determining whether the power failure plan is good or bad.
The power outage plan evaluation system according to claim 1 or 2 characterized by things. The storage means stores restrictions due to social events such as events,
The processing means includes a restriction due to a social event stored in the storage means when determining whether the power outage plan is good or bad.
The power outage plan evaluation system according to any one of claims 1 to 3. A power outage plan evaluation program for a power outage plan representing a work schedule involving a power outage,
It is a restriction on the power outage plan, restrictions due to work at the electric power station, restrictions due to equipment that sends power from the electric power station to consumers , distribution system data, equipment usage status, equipment data that represents equipment ratings, etc. Processing to memorize,
Processing to receive restrictions and blackout plans due to customer requests;
Based on the received customer's constraints and each stored constraint, whether the received power failure plan is good or not is determined , and the line method of the power failure range of the power failure plan is examined based on the distribution system data, the line method Is a dendritic line, the power transmission method is determined based on the distribution system data and the usage state of the equipment. If the line method is a loop line, the reverse transmission is performed based on the facility data. A process for determining whether or not
Outage plan evaluation program to make the computer execute.

Images