JP6691466B2 - Power generation monitoring system - Google Patents

Description

  The present invention relates to a power generation monitoring system that displays information on the amount of power generation of a power generation facility such as a photovoltaic power generation facility on a display unit to visually monitor the power generation status.

  As for power generation equipment such as solar power generation equipment and wind power generation equipment, a system for remotely monitoring information on the amount of power generation is provided. As this type of power generation monitoring system, the one described in Patent Document 1 is disclosed. In the power generation monitoring system of Patent Document 1, data relating to the power generation amount of the power generation equipment is transmitted to the server by the communication means, and the data of the power generation equipment acquired by the server is displayed on the operator terminal. Here, when the data of the amount of power generation from the power generation equipment could not be transmitted to the server due to communication failure, the data during that time is accumulated, and after recovery from the communication failure, it is transmitted to the recording unit of the server and supplemented, and is transmitted to the operator terminal. Is displayed.

JP, 2016-94879, A

However, even if a communication failure occurs, operators often do not pay attention to the communication failure or overlook it without noticing it, unless it affects the amount of power sold by the power generation equipment. There were many.
In addition, even if a communication failure mail is sent from the server to the operator terminal, the data that was not sent to the server due to the communication failure has been accumulated and will be transmitted to the server after the communication failure is recovered and complemented. Even if a business operator once recognized the occurrence of a communication failure, he often forgot its existence.

  When such a communication failure frequently occurs, the power generation abnormality also overlaps at the time of communication abnormality. For example, when the power generation equipment is for selling electricity, the power generation amount decreased due to the power generation abnormality. Even in this case, the power is generated without being able to know that the power generation abnormality has occurred due to the communication abnormality, and there is a great risk of causing a loss of power.

  Therefore, an object of the present invention is to provide a power generation monitoring system capable of accurately grasping the situation such as the frequency of occurrence of communication failure and the length of time of occurrence.

  The power generation monitoring system according to claim 1, wherein the power generation facility includes a power generation device, a measurement unit that measures a power generation amount of the power generation device, and a communication unit that transmits data of the measured power generation amount, and the power generation facility. And a display unit for displaying the data recorded by the recording unit. The power generation facility has a preliminary recording unit for the power generation amount data, and when the recording unit cannot receive the power generation amount data from the power generation facility due to communication failure, it can be received due to the communication failure. The data of the power generation amount that did not exist is acquired and recorded as supplementary data from the preliminary recording unit after the recovery of the communication failure, and the display unit is a portion of the displayed data of the power generation amount based on the complementary data. Are displayed in a distinguishable manner.

In the power generation monitoring system according to the second aspect, the display unit displays the portion of the data of the power generation amount based on the complementary data in a color different from that of the other portions.
A power generation monitoring system according to a third aspect of the present invention includes a notification unit that notifies a business operator of the power generation facility of the occurrence of the communication failure.

  According to the invention of claim 1, in the display unit, among the displayed power generation amount data, the portion of the complementary data acquired and transmitted from the spare recording unit after the communication failure is recovered but not received, Since it is displayed so as to be distinguishable from the other parts, the business operator can accurately and clearly grasp the situation such as the frequency of occurrence of communication failure and the length of time of occurrence. Accordingly, by taking measures to remove the communication failure, it is possible to secure and maintain a good communication state necessary for monitoring the power generation status.

According to the second aspect of the present invention, the display unit displays the portion of the power generation amount based on the complementary data so as to be distinguishable by a color different from that of the other portions, so that the portion based on the complementary data can be easily visually identified.
Since the invention of claim 3 has the notification unit for notifying the business operator of the occurrence of the communication failure, the business operator can surely recognize that the communication failure has occurred.

It is a block diagram which shows the electric power generation monitoring system of embodiment of this invention. It is a bar graph which shows the amount of power generation of the power generation equipment of FIG. 1 for every day. 2 is a table showing hourly power generation amounts of the power generation facility of FIG. 1. 4 is a bar graph showing the power generation amount per minute in the time zone when the communication failure occurs in the table of FIG. 3. It is a table which shows the electric power generation amount for every 1 minute of FIG.

Hereinafter, a power generation monitoring system according to an embodiment of the present invention will be described with reference to the drawings.
The power generation monitoring system of the present invention displays the data and information on the power generation amount of the power generation facility on the display unit to visually monitor the power generation status. In this embodiment, a photovoltaic power generation facility is exemplified as the power generation facility.

  As shown in FIG. 1, the power generation monitoring system 1 of the present invention includes a power generation facility 11 including a photovoltaic power generation facility, a server 21 including a recording unit 22 that records the amount of power generation received from the power generation facility 11, The business operator terminal 31 having a display unit 32 for displaying the data of the power generation amount of the power generation facility 11 is provided. Each configuration will be described below.

  The power generation facility 11 includes a power generation device 12 including a photovoltaic power generation panel, a measurement unit 13 that measures the amount of power generation generated by the power generation device 12, and a communication unit 14 that transmits data of the power generation amount measured by the measurement unit 13. And a preliminary recording unit 15 for recording the data of the power generation amount measured by the measuring unit 13 as a spare. The communication unit 14 transmits the data of the amount of power generation to the server 21 by means of radio wave transmission means.

  Although not shown, the solar power generation device that is the power generation device 12 is configured by an array in which a plurality of solar power generation panels are connected in series to form a string, and a plurality of strings are connected in parallel. . The electric power generated by the array is sent to the power conditioner 41. The power conditioner 41 converts the electric power generated by the array from direct current to alternating current and stabilizes the output. The AC power converted by the power conditioner 41 is output to the commercial grid 42 and sold. The AC power converted by the power conditioner 41 can also be used in its own factory, store, or the like.

  The server 21 is installed apart from the power generation facility 11 and includes a recording unit 22 that records the amount of power generation received from the power generation facility 11. When the server 21 cannot receive the power generation amount data from the power generation facility 11 due to the communication failure, the server 21 acquires the power generation amount data that cannot be received from the backup recording unit 15 of the power generation facility 11 after the communication failure is restored. And recorded in the recording unit 22 as complementary data. The power generation amount data recorded by the recording unit 22 is transmitted to the display unit 32 of the business entity terminal 31 by means such as mail. Further, the server 21 has a notification unit 23 that notifies a business operator such as a person who operates the power generation facility 11 or an owner who leases the power generation facility 11 that a communication failure has occurred by means of e-mail or the like. In the present embodiment, when communication is interrupted for 30 minutes or more, the notification unit 23 notifies the business entity terminal 31 by a communication failure email or the like. Here, the notification from the notification unit 23 is performed not only when a communication failure occurs but also when a communication abnormality occurs due to a power failure of the power generation equipment 11. Of course, the notification is not limited to when the communication is interrupted for 30 minutes or more.

  The display unit 32 of the business entity terminal 31 displays the data of the power generation amount transmitted from the power generation facility 11 via the server 21 on the display screen of the personal computer. The display unit 32 including a display screen displays the portion of the displayed power generation amount data that is the complementary data due to the communication failure so as to be distinguishable from the other portions. In the present embodiment, the display unit 32 displays the portion of the power generation amount data based on the complementary data in a distinguishable color from the other portions. In the case where the amount of power generation is represented by a bar graph on the screen of the display unit 32, in the present embodiment, the bar of the general part is displayed in green and the bar of the complementary data part is displayed in red. In addition, in the case where the amount of power generation is represented by a table by numerical values, the inside of the numerical frame of the complementary data is represented by a filled or shaded pattern such as orange or pink.

Next, the monitoring of the daily power generation status by the power generation monitoring system 1 configured as described above will be described.
In a normal state, the amount of power generated by the power generation device 12 of the power generation facility 11 is measured by the measurement unit 13, and is sent to the power conditioner 41 to convert the DC power into the AC power, and then the grid 42. Sold to. At the same time, the data of the power generation amount measured by the measuring unit 13 is sent to the communication unit 14. Further, the data of the power generation amount measured by the measuring unit 13 is also sent to the preliminary recording unit 15 and recorded in the internal storage memory.

  The power generation amount data sent to the communication unit 14 is sent to the recording unit 22 of the server 21 by a radio wave transmission means. The power generation amount data transmitted to the recording unit 22 is recorded in the storage memory. After that, when the business operator requests the business operator terminal 31, the power generation amount data is transmitted to the display unit 32 of the business operator terminal 31 and displayed on the display screen.

  2 to 5 show the power generation amount transmitted to the display unit 32 of the business entity terminal 31 and displayed on the display screen. In FIG. 2, the power generation amount of the entire day is represented by a bar graph, and the power generation amount every 30 minutes is represented between 0 and 24:00. In FIG. 3, the power generation amount of the entire day is represented by a table, and the power generation amount every 30 minutes is represented by a numerical value. The amount of power generation for each 30 minutes is shown in more detail as a bar graph by accumulating the amount of power generation for each minute. In FIG. 4, 1 for the 30 minutes from 11:31 to 12:00 is shown. The amount of power generation for each minute and its cumulative value are shown. In FIG. 5, this is tabulated as numerical values.

  Therefore, for example, in FIG. 2 and FIG. 3, when it is desired to know the detailed data for each minute in the latter half of the 11 o'clock range, the bar portion in the latter half of the 11 o'clock range of 30 minutes or “11: When the portion within the frame of "30" is clicked, the graph of FIG. 4 and the table of FIG. 5 are displayed in order. In addition, in the table of FIG. 5, the data of the generated power amount (kWh), the integrated power amount (kWh), the maximum instantaneous power (kW), and the power sale amount (yen) at each hour are displayed. Although illustration is omitted, in FIG. 5, data such as a voltage value (V) and a current value (A) at each time may be further displayed.

  Next, a case will be described in which the communication unit 14 of the power generation facility 11 does not transmit the power generation amount data to the recording unit 22 of the server 21 due to a communication abnormality due to some cause such as a radio disturbance or a power outage of the power generation facility 11. Now, for example, if a communication failure occurs during the latter half of the 11 o'clock range, the data of the amount of power generation sent from the measurement unit 13 of the power generation equipment 11 to the communication unit 14 is stored in the recording unit 22 of the server 21. The data is not transmitted and the final data is not displayed on the business operator terminal 31.

  However, from the measuring unit 13 of the power generation equipment 11, in parallel and separately, data of the amount of power generation is separately sent to the preliminary recording unit 15 regardless of the occurrence of communication failure and recorded in the memory of the preliminary recording unit 15. Therefore, when the communication failure is restored by taking measures after the occurrence of the communication failure, although not shown, the data in the communication failure occurrence time zone recorded in the preliminary recording unit 15 is sent to the communication unit 14. Then, as in the normal case, the data is transmitted from the communication unit 14 to the recording unit 22 of the server 21 by radio waves and recorded in the recording unit 22. As a result, the data of the amount of power generation during the time of occurrence of the communication failure or the like is recorded in the recording unit 22 as complementary data.

  After that, the data of the power generation amount recorded in the recording unit 22 is obtained by combining the data of the communication failure occurrence time zone with the data of the other time zone, that is, the data at the time of normal communication, and collecting the data into one. When requested by the operator terminal 31, it is sent to the operator terminal 31 and displayed on the display unit 32. As a result, in the operator terminal 31, the data of the communication failure occurrence time zone is displayed as the complementary data in the portion where the display is blank due to the communication failure, so that even if the communication failure occurs, the operator does not operate in all time zones. You can check the amount of power generation in.

  In addition, when the communication failure time for each time exceeds 30 minutes and the communication during that time is interrupted, the server 21 discriminates it and notifies the communication unit 14 of the occurrence of the communication failure to the operator terminal 31. Then, the notification unit 23 notifies the business entity terminal 31 of the occurrence of the communication failure by mail. Note that the notification in this case is also issued when a communication failure or a communication failure due to a power outage of the power generation equipment 11 occurs.

  Here, for example, when the business operator confirms the power generation amount at the end of the day or the like, the notification unit 23 of the server 21 notifies the business operator terminal 31 of the communication failure occurrence because the communication abnormality occurrence time is shorter than 30 minutes. Is not performed, and when the graphs and tables of the display unit 32 show no particular abnormality in the photovoltaic power generation panel or the like, the communication can be performed only by looking at the graphs and tables of FIGS. 2 and 3. It is hard to notice that there is a failure. Further, when the communication failure occurs for more than 30 minutes and communication is interrupted, the notification unit 23 of the server 21 notifies the business entity terminal 31 of the communication failure, and the business entity once recognizes the communication failure. However, since the data during the communication failure occurrence time is complemented and displayed as a graph or table after the communication failure is recovered, communication failure occurs unless there is a situation in which a power generation abnormality occurs and the amount of power sold is affected. Sometimes you forget about the existence of.

  However, in the present invention, the display unit 32 of the business entity terminal 31 displays the portion of the displayed power generation amount data by the complementary data so that it can be identified by a different color from the portion of the time zone in which there is no communication failure. It is possible to easily recognize and grasp the fact that the communication failure has occurred, the occurrence frequency, the occurrence time, and the like. In the present embodiment, the bar of the communication failure occurrence time zone is displayed in red in the bar graph of FIG. 2, so that it can be clearly distinguished from the bar displayed in green of the normal communication time zone, and the communication failure occurs. Can easily be recognized. Further, in the table of FIG. 3, the inside of the numerical frame for the latter half of 11 o'clock in the latter half of 11 o'clock is filled with orange or pink, so it is clear that the communication failure has occurred within that time as well. And can be easily recognized.

  In the present invention, the abnormal communication state in the subsequent 30 minutes can be confirmed in detail with reference to FIGS. 4 and 5. To do so, click the bar portion in the latter half of the 11 o'clock position in FIG. 2 or the portion in the shaded frame in the latter half of the 11 o'clock position in FIG. 3 for 30 minutes. Then, the screen display of FIG. 4 and FIG. 5 is switched in order. In FIG. 4, a bar from 11:35 to 10:44 is displayed in red, which indicates that a communication failure has occurred and the time. Similarly, in the table of FIG. 5, since the entire frame of the same time zone is filled with orange or pink, it is possible to know the occurrence of the communication failure and its time.

  That is, according to the graphs and tables of FIGS. 2 to 5, a communication failure occurs once a day on the day, the occurrence time is from 11:35 to the same 44 minutes, and the occurrence length is 10 minutes. It's clear and easy to understand.

Next, the measures taken after the communication failure occurs will be described.
When a communication failure occurs, monitoring of the power generation equipment 11 becomes insufficient, and when the power generation failure also overlaps when the communication failure occurs, there is a possibility that the power generation apparatus 12 may be operated while the power generation amount is reduced without noticing the power generation failure. Since it is not preferable, it is necessary to investigate and confirm immediately and take countermeasures, especially when the frequency of occurrence of communication failure is high or the occurrence time is long. The communication abnormality may occur due to a communication failure such as a radio wave failure, or may occur due to a power failure of the power generation facility 11. After the investigation and confirmation, if the communication failure occurs due to the communication failure, the position and direction of the communication antenna We will try to obtain a good communication status by improving the environment and environment in which communication failure is unlikely to occur by taking measures such as changing the communication environment and changing the carrier, so-called carrier.

Next, the operation of the power generation monitoring system 1 of this embodiment will be described.
In the conventional power generation monitoring system, even when the data of the power generation amount of the power generation facility 11 is not transmitted to the server 21 and transmitted to the business entity terminal 31 due to a communication error, the power generation amount at the time of communication error after the communication failure is restored. Some data are complemented. However, when confirming the amount of power generation at the end of work on a day, when the power generation abnormality is not occurring, the image such as the bar graph displayed on the display screen which is the display unit 32 is almost normal. Since the shape does not change and the numerical value is shown, it is easy for the business operator to overlook the occurrence of communication failure, or to overlook it without noticing it.
If the communication abnormality information is transmitted from the notification unit 23 of the server 21 after the communication abnormality has passed for a predetermined time or more, the business operator recognizes the communication abnormality once, but the power generation abnormality does not occur. In some cases, the existence of communication anomalies may be forgotten.

  However, in the power generation monitoring system 1 of the present invention, the display unit 32 of the business entity terminal 31 can identify the portion of the displayed amount of power generation based on the complementary data acquired from the preliminary recording unit 15 after the communication failure is restored. Since it is displayed in, it is possible to accurately grasp the situation such as the frequency of occurrence of communication failure and the length of time of occurrence. In the present embodiment, it is clear on the display screen of the personal computer that communication is interrupted for 10 minutes from 11:35 to 44: once a day in the work of confirming the amount of power generation per day at the end of the work. Can be accurately recognized and grasped. For this reason, even if the power generation amount is reduced due to the occurrence of the power generation abnormality and the power sale amount is not affected, the business person hardly notices the communication abnormality and forgets about its existence. Then, after this, a communication abnormality is checked and confirmed, and a measure for removing the communication failure is taken, so that a good communication state is secured and maintained. As a result, the power generation status is constantly monitored normally.

  Here, in the display unit 32 of the business entity terminal 31 of the present embodiment, the portion of the power generation amount data based on the complementary data is displayed in red in the bar graphs of FIGS. 2 and 4, and the table of FIGS. In (1), since the inside of the numerical value frame is filled with orange, pink, etc., and is displayed by being distinguished from the other parts by a different color, it is possible to immediately and clearly grasp the occurrence of a communication error visually.

  Further, since the server 21 has the notification unit 23 that notifies the operator of the occurrence of the communication failure, the communication failure was not notified because it was within 30 minutes in the present embodiment, but the communication failure continued for 30 minutes or more. In this case, since the notification unit 23 notifies the business entity terminal 31 by email of the occurrence of the communication abnormality, the business entity can more easily understand that the communication abnormality exists.

  By the way, in the bar graphs of FIGS. 2 and 4, the display unit 32 of the business entity terminal 31 of the above-described embodiment displays the portion of the power generation amount data by the complementary data in a distinguishable manner by a red bar different from the other portions. However, in the tables of FIG. 3 and FIG. 5, the portion based on the complementary data is displayed in a distinguishable manner by being filled in with orange or pink in the numerical frame, but when the present invention is carried out, it is not always the case. It is not limited to the identification display. For example, in the tables of FIGS. 3 and 5, the background in the numerical value frame of the power generation amount data is all white, but only the numerical characters of the portion of the complementary data can be identified as bold or italic. Alternatively, the entire portion of the complementary data may be surrounded by a thick frame. In short, it suffices that the difference between the portion due to the complementary data and the other portion is clear and can be easily identified, preferably visually.

  Further, in the above embodiment, the case of displaying the data of the power generation amount in one day has been described, but the present invention is also applicable to the case of displaying the data of the power generation amount in units such as one week or one month. In this case, first, the week or day when the communication error occurred is displayed, and by clicking the week or day on the display of the personal computer, the power generation amount can be displayed in more detail by the hour unit or the minute unit. be able to.

  Furthermore, the server 21 of the above-described embodiment has the notification unit 23 that notifies the operator of the power generation facility 11 of the occurrence of the communication failure, but the power generation monitoring system of the present invention does not necessarily require the notification unit 23. The data received from the communication unit 14 of the power generation equipment 11 and recorded in the recording unit 22 of the server 21 may be simply displayed on the display unit 32.

  In the present embodiment, a solar power generation device is illustrated as the power generation device 12, but in the power generation monitoring system 1 of the present invention, the power generation device 12 is a wind power generation device, a wave power generation device, or another natural energy utilization. The same can be applied to the case of the power generation device of FIG.

1 Power Generation Monitoring System 11 Power Generation Equipment 12 Power Generation Device 13 Measuring Section 14 Communication Section 15 Preliminary Recording Section 21 Server 22 Recording Section 23 Notification Section 31 Business Operator Terminal 32 Display Section

Claims (3)

A power generation facility including a power generation device, a measurement unit that measures the amount of power generation of the power generation device, and a communication unit that transmits data of the measured power generation amount,
A recording unit that records the power generation amount data received from the communication unit of the power generation facility,
A display unit for displaying the data recorded by the recording unit,
The power generation equipment further has a preliminary recording unit for the data of the power generation amount,
When the recording unit cannot receive the data of the power generation amount from the power generation facility due to the communication failure, the data of the power generation amount that could not be received due to the communication failure is used as a backup of the power generation facility after the communication failure is restored. Acquired as complementary data from the recording unit and recorded,
The power generation monitoring system is characterized in that the display unit identifiably displays a portion of the displayed amount of power generation based on the complementary data.   The power generation monitoring system according to claim 1, wherein the display unit displays a portion of the data of the power generation amount based on the complementary data in a color different from that of the other portions.   The power generation monitoring system according to claim 1 or 2, further comprising a notification unit that notifies a business operator of the power generation facility of the occurrence of the communication failure.