JP6439861B2 - Power generation device monitoring control system, power system, management device, control device and method - Google Patents

Description

[Description of related applications]
The present invention is based on a Japanese patent application: Japanese Patent Application No. 2015-077065 (filed on April 3, 2015), and the entire contents of this application are incorporated in the present specification by reference.
The present invention relates to a power generation device monitoring control system, a power system, a management device, a control device, and a method, and in particular, a power generation device monitoring control system and a power system system that perform monitoring control of a power generation device that generates power mainly by renewable energy. , A management apparatus, a control apparatus, and a method.

  Patent Document 1 discloses a power generation system that can effectively use solar power generation by individually suppressing the output of each solar power generation while considering the total power generation amount of the plurality of solar power generations. The same document receives information on the power generation amount limit value from an output suppression management device that manages a plurality of power conditioners, and also transmits a communication unit that transmits information on the power generation amount of the own device, and the power generation amount limit value. A power conditioner including a suppression control unit that suppresses output power of the device itself is disclosed. In addition, the output suppression management device is configured such that the total generated power that is the sum of the power generation amounts of the plurality of power conditioners managed by the output suppression management device that manages the own device is the sum of the power generation amounts of the plurality of power conditioners. It describes that the power generation amount limit value is set so as not to exceed the total power generation upper limit value that is the upper limit value of the sum.

  In Non-Patent Documents 1 and 2, each power company resumed responding to a new connection application because it became difficult to stably supply power with the rapid expansion of renewable energy centered on sunlight. This is an explanatory material. For example, Non-Patent Document 1 discloses that the connectable amount of sunlight in the mainland Kyushu is set and output control is performed based on the set amount. As a specific output control mode, as described on the slide page 9-10, it is scheduled to contact the power company from the electric power company on the evening of the previous day on a dedicated communication line for the special high voltage interconnection. As for the output control of the high-low pressure interconnection, calendar control by an output control calendar is scheduled.

  Non-Patent Document 3 discloses a distribution automation system used for distribution system operation on the power system side.

JP 2013-207862 A

Kyushu Electric Power Co., Inc. February 2015 “Explanation document on resuming responses to connection applications for renewable energy power generation facilities in mainland Kyushu”, [online], [Search on March 17, 2015], Internet <URL: http://www.kyuden.co.jp/library/pdf/notice/q27hfv5k.pdf> Tohoku Electric Power Co., Inc., January 2015 “(Attachment 1) Concept of applying new output control rules for renewable energy power generation facilities based on the revised ministerial ordinance”, [online], [Search on March 17, 2015], Internet <URL: http://www.tohoku-epco.co.jp/news/normal/__icsFiles/afieldfile/2015/01/23/1188918b1.pdf> Hitachi Review, March 1989, “Special Issue on Power Distribution Technology, Power Distribution Automation Computer Control System”, [online], [Search January 29, 2015], Internet <URL: http://digital.hitachihyoron.com/pdf/ 1989/03 / 1989_03_02.pdf>

  The following analysis is given by the present invention. As described in Non-Patent Documents 1 and 2, in recent years, distributed power sources using renewable energy typified by solar power generation (also referred to as “photovoltaics”, “solar photovoltaics”, hereinafter referred to as “PV”) and airflow ( Due to the rapid increase in the number of power generation devices), surplus power that flows backward to the power system increases, and the power system becomes unstable.

  At present, as in Non-Patent Documents 1 and 2, free output control is implemented for 30 days a year based on output control in units of one day. In the future, output control in units of hours will be studied. ing. However, in order to realize output control in units of time, there is a problem that it is not possible to cope with contact or calendar control in the evening of the previous day, such as slide 10 page of Non-Patent Document 1. Further, according to Non-Patent Document 1, it is planned that a small-scale photovoltaic power generation facility for home use or the like will be an object of output control in the future.

  In this regard, Patent Document 1 proposes an alternative method to the above-described calendar control, but as represented by Equation (5) of [0165], the amount of power that cannot be generated by the power generation device in the cloudy area is totalized. It is just processing the power generators in sunny areas equally, and large and small power generators with different rated power generations exist in a wide area and cannot handle the situation of chronic oversupply. There is a problem. From this point of view, there is a demand to select a specific power generation device to stop operation or suppress output.

  An object of the present invention is to provide a power generator monitoring control system, a power system, a management device, a control device, and a method that can contribute to the solution of the above-described surplus power problem.

  According to a first aspect, the power generation device monitoring includes: a control device connected to at least one power generation device and capable of controlling the power generation device; and a management device connected to be communicable with the at least one control device. A control system is provided. The management device excludes a power generation device whose transmission history of an instruction to suppress output power does not satisfy a predetermined condition from the power generation devices identified by connection information indicating a power generation device that outputs power to the power system from the suppression target, An instruction to suppress output power is transmitted to the control device connected to the power generation device that satisfies the predetermined condition.

  According to a second aspect, a control device connected to at least one power generation device and capable of controlling the power generation device, a management device connected to be communicable with at least one control device, and power from the power generation device And an electric power system including the electric power system. The management device excludes a power generation device whose transmission history of an instruction to suppress output power does not satisfy a predetermined condition from the power generation devices specified by connection information indicating a power generation device that outputs power to the power system from a suppression target. Then, an instruction to suppress output power is transmitted to the control device connected to the power generation device that satisfies the predetermined condition.

  According to the 3rd viewpoint, the management apparatus and control apparatus for comprising a power generator monitoring control system or an electric power grid system are provided.

  According to a fourth aspect, there is a method for operating a management device, wherein a transmission history of an instruction to suppress output power is selected from among power generation devices identified by connection information indicating a power generation device that outputs power to the power system. A method is provided that includes a step of excluding a power generation device that does not satisfy a predetermined condition from a suppression target, and a step of transmitting an output power suppression instruction to a control device connected to the power generation device that satisfies the predetermined condition. The

According to a fifth aspect, there is provided a method for operating the above-described control device, wherein output power is selected from among the power generation devices identified by connection information indicating a power generation device that outputs power from the management device to the power system. Receiving a suppression instruction created by excluding a power generation device whose transmission history of a suppression instruction does not satisfy a predetermined condition from a suppression target, and selecting a power generation device that satisfies the predetermined condition as a suppression target; and the management device And a step of controlling the power generation device based on an instruction to suppress output power from.
Each of the above-described methods is associated with a specific machine such as a control device and a management device.

  According to the sixth aspect, a computer program for realizing the functions of the control device and the management device described above is provided. This program can be recorded on a computer-readable (non-transient) storage medium. That is, the present invention can be embodied as a computer program product.

  According to the present invention, it is possible to contribute to solving the surplus power problem.

It is a figure which shows the structure of the electric power generating apparatus monitoring control system of the 1st Embodiment of this invention. It is a figure for demonstrating operation | movement of the power generator monitoring control system of the 1st Embodiment of this invention. It is a figure for demonstrating operation | movement (modified example) of the power generator monitoring control system of the 1st Embodiment of this invention. It is a figure which shows the deformation | transformation structure of the electric power generating apparatus monitoring control system of the 1st Embodiment of this invention. It is a figure which shows the deformation | transformation structure of the electric power generating apparatus monitoring control system of the 1st Embodiment of this invention. It is a figure which shows the system configuration | structure of the 2nd Embodiment of this invention. It is a figure which shows the example of another system configuration | structure of the 2nd Embodiment of this invention. It is a figure which shows the structure of the electric power generating apparatus monitoring control system of the 2nd Embodiment of this invention. It is a figure which shows an example of the connection information which the management apparatus of the 2nd Embodiment of this invention hold | maintains. It is a figure which shows an example of the historical information (suppression schedule) of the suppression control which the management apparatus of the 2nd Embodiment of this invention hold | maintains. It is a figure which shows the structural example of the management apparatus of the 2nd Embodiment of this invention. It is a figure for demonstrating the operation | movement (power generation amount report process) of the 2nd Embodiment of this invention. It is a figure for demonstrating the operation | movement (power generation amount control process) of the 2nd Embodiment of this invention. It is a figure which shows an example of the selection process of the electric power generating apparatus of the suppression object in the management apparatus of the 2nd Embodiment of this invention. It is a figure for demonstrating the reselection process of the electric power generating apparatus of the suppression object in the management apparatus of the 2nd Embodiment of this invention. It is a figure which shows an example of the electric power generation suppression schedule which the management apparatus of the 2nd Embodiment of this invention produces. It is a figure which shows another example of the electric power generation suppression schedule which the management apparatus of the 2nd Embodiment of this invention produces. It is a figure which shows another example of the electric power generation suppression schedule which the management apparatus of the 2nd Embodiment of this invention produces. It is a figure for demonstrating the effect of the 2nd Embodiment of this invention.

  First, the concept of the embodiment described below will be described. The increase in surplus power that flows backward to the power system is brought about by distributed power sources (power generation devices) that use renewable energy. Among distributed power sources (power generation devices) using renewable energy, household solar power generation devices are expected to expand rapidly. The number of such solar power generators for the seabed for home use exceeds 1 million, and it is practically difficult for the power company alone to control the power generation of all the power generators. Under such circumstances, a hierarchical architecture for controlling the power generation of the power generator for the purpose of stabilizing the power system is being studied. That is, a management device that manages a set of power generation devices is provided, and the management device manages the power generation amount in a specific area where the management device is provided. On the other hand, there are many cases where the installer of the solar power generation apparatus has one purpose of selling the generated power. Therefore, when controlling the power generation of the power generation device, it is necessary to ensure fairness among these installers. Therefore, as a function of the management apparatus, a function of ensuring the fairness among the installers of the power generation apparatus is required as well as a function of performing the reliable suppression control of the power generation apparatus in the specific region.

  Therefore, electric power companies are considering entrusting management to private businesses. The private business operator who has received the commission will manage the amount of power generation within the scope of the commission. On the other hand, there are not a few installers of solar power generation devices for the purpose of selling the generated power. Therefore, it is necessary to ensure fairness among installers of solar power generation devices. Therefore, as a private business operator, it is necessary to carry out reliable suppression control of the photovoltaic power generation device within the scope of entrustment and to ensure fairness among the installers of the photovoltaic power generation device.

[First Embodiment]
FIG. 1 is a diagram showing a configuration of a power generator monitoring control system 1 according to a first embodiment of the present invention. Referring to FIG. 1, a control device 110 that is connected to at least one power generation device 120 and can control the power generation device 120, is connected to be able to communicate with the control device 110, and connection information and power generation control information from an electric power system 300. A configuration including a management device 200 that receives the message is shown.

  The management device 200 stores a storage unit 201 that stores a transmission history of an instruction to suppress output power in the power generation device 120, a selection unit 203 that selects a power generation device to be suppressed, and a control that is connected to the selected power generation device 120. And a transmission unit 204 that transmits a suppression instruction to the device 110. The connection information is information indicating a power generation device that outputs power to the power system 300.

  More specifically, the selection unit 203 selects, from among the power generation devices 120 specified by the connection information, the power generation device 120 whose transmission history of the output power suppression instruction satisfies a predetermined condition as a suppression target. For example, the selection unit 203 refers to the transmission history of the output power suppression instruction, and selects a power generation device whose number and time of output suppression are less than a predetermined threshold within a certain past period. The selection unit 203 may select a power generation device having a suppressed cumulative power generation amount equal to or less than a predetermined value as a suppression target with reference to the transmission history of the output power suppression instruction.

  The transmission unit 204 transmits an instruction to suppress output power to the control device 110 connected to the selected power generation device 120.

  FIG. 2 is a diagram for explaining the operation of the selection unit 203 and the transmission unit 204 in the first embodiment. For example, as shown in Non-Patent Document 1, it is assumed that a rule is set that output suppression control can be applied with 360 hours as an upper limit in one year.

  First, the selection unit 203 selects the power generators 1 to 4 that output power to the power system 300 based on the connection information. Here, for example, the selection unit 203 excludes the power generation device (for example, the power generation device 5) that is not connected to the power system 300 from the suppression target.

  Next, the selection unit 203 refers to the storage unit 201 to select a power generation device having a cumulative suppression time that is a cumulative total of the times for which output suppression has been performed, that is less than the threshold of 360 hours. In the example of FIG. 2, the power generators 1, 2, and 4 are selected. At this time, the power generation device 3 whose cumulative suppression time is equal to or greater than the threshold of 360 hours is excluded. In the example of FIG. 2, the selection unit 203 further selects the power generation apparatuses 1 and 2 with sunny weather at the installation location with reference to the weather information of the power generation apparatuses 1, 2, and 4.

  The transmission unit 204 transmits an instruction to suppress output power to the control device 110 connected to the power generation devices 1 and 2 selected by the selection unit 203. For example, when the suppression instruction is an instruction to stop the operation of the power generation apparatuses 1 and 2, a maximum of 60 kW, which is the total value of the respective power generation capacities, is achieved. Of course, the output power generation amount instruction (suppression instruction) may be an output rate (or suppression rate) with respect to the rated power generation amount as described in Patent Document 1. For example, when the transmission unit 204 instructs the power generation apparatuses 1 and 2 to output 50% as the output rate (suppression rate), the maximum suppression of 30 kW is achieved.

  As described above, according to the present embodiment, it is possible to select the power generation device to be suppressed so that it becomes the target of suppression control as fairly as possible with reference to the past suppression history.

  FIG. 3 is a diagram for explaining the deformation operation of the selection unit 203 and the transmission unit 204 in the first embodiment. As described above, according to the first embodiment of the present invention, it is possible to perform suppression control by selecting a power generation device based on a predetermined rule. However, there is a possibility that the target cannot be achieved when the suppressed power generation amount requested from the power system 300 in FIG. 1 is 100 kW and the above-described 60 kW or 30 kW. In this case, you may make the selection means 203 perform the additional selection of the generator device of suppression object. For example, in FIG. 3, as in FIG. 2, when the power generation apparatuses 1 and 2 are stopped and the suppression instruction power generation amount is not reached, the selection unit 203 suppresses the cumulative suppression time as exceeding the threshold 360 hours. The type information (contract information) of the power generator 3 that has not been added to the target is confirmed. For example, when the type information (contract information) of the power generation device 3 indicates that the power generation device has a late start time for connection to the power system and allows suppression control exceeding the 360-hour rule, the selection unit 203 The power generator 3 is also added to the suppression control target. Thereby, suppression of a maximum of 160 kW can be implemented by instructing the operation stop of the power generators 1 to 3. Of course, in order to achieve 100 kW, 100 kW is theoretically suppressed by instructing each power generator to output rate of 100/160 = 62.5% (suppression rate = 37.5%). It is also possible to do. As described above, the present invention can be variously modified in consideration of the attribute information of each power generation device. Here, the type information of the power generation device 3 may be information indicating the content of the contract. The attribute information of each power generator may be the scale, application, installation location, connection start time to the power system, and the like.

  In the above description, the connection information has been described as information specifying that the power generation device is outputting power to the power system 300, but the distribution path to which each power generation device is connected, The information may be information for grouping the power generation devices according to the installation position (area such as Tokyo, Minato-ku, etc.) or, for example, a specific group that is a power generation device group having a total power generation amount of 500 kW or less. In this case, the selection unit 203 selects a power generation device that is a candidate for suppression depending on whether or not it belongs to the distribution path, installation position, and group of the control target of the power generation device. The target of suppression will be selected.

  In the above-described example, the management device 200 instructs the control device 110 to output power generation amount, and the control device 110 is controlled to control the power generation device 120 connected thereto. As shown in FIG. 2, a configuration in which a plurality of power generation devices 120-1 to 120-n are connected to one control device 110 may be employed. In this case, the management device 200 stores a history of output suppression control for the n power generation devices.

  Similarly, as illustrated in FIG. 5, a configuration in which a plurality of control devices 110 are connected to one management device 200 may be employed. In this case, the management device 200 stores a history of output suppression control for the power generation devices connected to each of the m control devices 110.

[Second Embodiment]
Next, a second embodiment of the present invention that performs more detailed control including the configuration on the power system side will be described in detail with reference to the drawings. FIG. 6 is a diagram showing a basic system configuration according to the second embodiment of the present invention. Referring to FIG. 6, a configuration is shown in which a management device 200 is arranged between a power distribution automation system 320 on the power system side, a central power feeding system 310, a control device 110, and a power generation device 120.

  The central power supply system (hereinafter, “medium supply system”) 310 calculates the excess or deficiency of the power supply and demand based on the system-integrated power generation amount of each system and the assumed power demand, and sets a control schedule in the management apparatus 200. Send. In the present embodiment, the management device 200 operates according to the suppression schedule received from the central power supply system 310.

  The distribution automation system (hereinafter referred to as “distribution system”) 320 switches the distribution network for reasons such as accident recovery, facility maintenance, overload elimination, and the like, and transmits connection information of the power generation apparatus to the management apparatus 200 side. . In the present embodiment, the allocation system 320 is a transmission source of connection information indicating a power generation device that outputs power to the power system.

  The management device 200 is connected to the control device 110 via a network (not shown). When there are a large number of power generation devices or when management is necessary, a plurality of management devices 200 can be arranged.

  The control device 110 is a device that monitors and controls the power generation devices 120 arranged in various places.

  Based on the connection information received from the distribution system 320 and the history of output suppression instructions managed by the management apparatus 200, the management apparatus 200 selects the power generation apparatus 120 that is subject to suppression control and is connected to the power generation apparatus 120. A control instruction is transmitted to the control device 110. The specific content of the suppression instruction is created based on the suppression schedule received from the medium pay system 310. In addition, the management device 200 aggregates the power generation amount information (individual power generation amount) of the individual power generation devices received from the control device 110 and transmits the collected power generation information to the middle supply system 310 in order to feed back the suppression schedule. Further, the feedback can include the cumulative suppression time of the individual power generators.

  Note that the configuration shown in FIG. 6 is for simply explaining the present invention, and various modifications can be made. For example, the management device 200 and the control device 110 may be connected via a communication network such as a mobile communication network or the Internet. Further, for example, when a large number of power generation devices 120 and control devices 110 are arranged in a wide area, a plurality of management devices are arranged in a hierarchy as shown in FIG. It is also possible to configure so that the processing can be distributed to a plurality of management devices (children) 220. Moreover, the system of the electric power system side shown to the upper stage of FIG. 6, FIG. 7 is an example to the last, and is changed according to the system structure of each electric power company.

  Next, the configuration and function of the management apparatus 200 described above will be described in more detail. FIG. 8 is a schematic diagram of FIG. 6 for briefly explaining the configuration and functions of the management apparatus. Referring to FIG. 8, there is shown a configuration in which the management device 200 is arranged between the power supply and demand information management unit 311, the connection information management unit 321, and the wide area network to which the control device 110 is connected. Yes.

  The supply and demand information management unit 311 corresponds to the above-described middle supply system 310, adjusts the supply and demand balance of power, and plans a power generation schedule. Further, the supply and demand information management unit 311 of this embodiment has a function of transmitting a suppression schedule (one form of output instruction) to the management device 230. When a plurality of management apparatuses 200 are arranged, the supply and demand information management unit 311 may create and transmit a suppression schedule to each management apparatus 200. In addition, as illustrated in FIG. 7, the control schedule for the entire system is transmitted to the upper management device (parent) 230, and the management device (parent) 230 creates the suppression schedule for each area. ) A configuration of transmitting to 220 may be adopted.

  The connection information management unit 321 corresponds to the self-distribution system 320 described above, and controls a switch for managing the distribution route and changing the distribution route of each power generator connected to the power system. Further, the connection information management unit 321 has a function of transmitting connection information (connection information of the power generation device) to the management device 200.

  FIG. 9 is a diagram illustrating an example of connection information transmitted from the connection information management unit 321 to the management apparatus 200. In the example of FIG. 9, a certain power generation device is connected to the system A at a certain time and then connected to the system B.

  The management device 200 communicates with the higher-order bidirectional communication unit 231 for communicating with the system on the power system side, the control unit 232, and the lower-order bidirectional communication for communicating with the control device 110 under the wide-area communication network. Unit 233 and a management information storage unit 234.

  The control unit 232 functions as a selection unit that selects a power generation device to be suppressed based on connection information held in the management information storage unit 234 and history information (suppression schedule) of suppression instructions to each power generation device 120. To do. In addition, the control unit 232 according to the present embodiment creates a suppression schedule for the selected power generation device 120 based on the suppression schedule received from the supply and demand information management unit 311 and instructs each control device 110 to perform a suppression instruction (suppression). Control information). In addition, transmission of the suppression schedule from the supply / demand information management unit 311 to the management device 200 may be transmitted by the supply / demand information management unit 311 in response to a transmission request for the suppression schedule from the management device 200. In addition, the control unit 232 stores the real-time power generation amount received from the control device 110 and the suppression schedule transmitted to the control device 110 in the management information storage unit 234 for a predetermined period.

  FIG. 10 is a diagram illustrating an example of a suppression schedule according to a certain power generation device. In the example of FIG. 10, it is shown that the suppression control was performed for 2 minutes 30 seconds from 11:32; 30 to 11:35:00. In the present embodiment, such a suppression schedule for each power generation device is used as history information of output suppression control for obtaining the total suppression time during which each power generation device has been subjected to suppression control. Of course, as shown in FIGS. 2 and 3, a table or the like for managing the cumulative suppression time for each power generator may be prepared.

  The management information storage unit 234 stores connection information transmitted from the power system side and a suppression schedule. In addition, the management information storage unit 234 stores management information such as the specification information and operating state of each power generation device received from each control device 110 and the suppression schedule of each power generation device calculated by the control unit 232.

  The control device 110 is a device that monitors the power generation device 120 and includes a display unit 113 that displays the operating state of the PV and the like, and a pyranometer 114 that measures the weather (sunshine state) around the power generation device. When receiving the suppression instruction (suppression control information) from the management device 200, the control device 110 according to the present embodiment instructs the power generation device 120 to perform control to suppress the output power generation amount. Moreover, the control apparatus 110 reports the alternating current power output in the power generator 120 to the management apparatus 200 as PV power generation amount. Further, the control device 110 transmits the sensor value of the pyranometer 114 to the management device 200. The sensor value of the pyranometer 114 is used as information for notifying the weather information (sunshine state) of the place where the power generator is installed. In the present embodiment, the control device 110 is described as including the pyranometer 114, but the control device 110 is not necessarily provided with the pyranometer 114. For example, the management device 200 can directly obtain the value of a pyranometer that has been placed in the vicinity of the power generation device 120, or can use mesh solar radiation data, local nowcast information, etc. from the Japan Meteorological Agency or a private weather company.

  The power generator 120 is an apparatus called a power conditioner (PCS) that includes an inverter and has a function of converting DC power output from PV or the like into AC power. Moreover, the power generator 120 of this embodiment adjusts the conversion efficiency of the electric power generated by PV etc. by controlling an inverter based on the suppression instruction | indication (suppression control information) received from the control apparatus 110. Therefore, the suppression control can be performed. The power generation apparatus 120 according to the present embodiment has a function of transmitting a PV power generation amount and the like to the control apparatus 110 at a predetermined cycle. The control unit 110 may request the power generation device 120 to acquire the PV power generation amount and the like, and may acquire the PV from the power generation device 120.

  The functions of the management apparatus 200 shown in FIG. 8 are described above by using the hardware (CPU 2320, storage device 2340, communication device 2310, etc.) in the computer constituting the management apparatus as shown in FIG. It can also be realized by a computer program that executes each process.

  Next, the operation of this embodiment will be described in detail with reference to the drawings. First, PV power generation amount reporting processing to the power system side by the management device will be described. FIG. 12 is a diagram for explaining an operation related to the power generation amount report processing according to the second embodiment of this invention. As illustrated in FIG. 12, the power generation device 120 transmits PV power generation information to the control device 110 at predetermined time intervals.

  The control device 110 aggregates the power generation amount received from the power generation device 120 for a certain period, and then transmits it to the management device 200. For example, the control device 110 counts the power generation amount received from the power generation device 120 every 30 seconds, and transmits the total power generation amount for 30 minutes as power generation information to the management device 200 (step S001). ). In the example of FIG. 12, the control device 110 actively transmits power generation information to the management device 200, but the control device 110 may transmit power generation information in response to a request from the management device 200. Good. In the example of FIG. 12, the 30-minute integrated value of the above-described power generation amount is transmitted, but the transmission interval of the power generation amount from the control device 110 to the management device 200 is the number of management devices 200, network performance, It is determined appropriately depending on the protocol to be used. For example, the control device 110 may transmit the power generation amount to the management device 200 every time it receives the power generation amount from the power generation device 120.

  The management device 200 that has received the power generation information stores the power generation information (cumulative power generation amount) in the management information storage unit 234 (step S002). In addition, the management device 200 calculates the average power generation amount of each power generation device (step S003). This average power generation amount can also be included in information calculated by the power generation device 120 and transmitted to the management device 200.

  The management device 200 that has received the power generation amount transmits the power generation amount total value of the power generation device to be managed as power generation information to the power system side at predetermined time intervals. In the example of FIG. 12, the management apparatus 200 actively transmits power generation information to the power system side. However, the management apparatus 200 may transmit power generation information in response to a request from the power system side.

  By doing as described above, the power generation amount to be managed can be reported to the power system side.

  Next, power generation amount suppression control by the management device 200 will be described. FIG. 13 is a diagram for explaining the operation (power generation amount control process) of the second embodiment of the present invention. As illustrated in FIG. 13, the connection information management unit 321 on the power system side transmits connection information of the power generation device to the management device 200. When receiving the connection information, the management apparatus 200 stores the received connection information in the management information storage unit 234 (step S101).

  Independent of the transmission of the connection information, the power supply / demand information management unit 311 transmits a suppression schedule to the management apparatus 200 in consideration of the power supply / demand balance. When receiving the suppression schedule, the management device 200 stores the received suppression schedule in the management information storage unit 234 (step S102). In addition, the reception of the connection information and the reception of the suppression schedule in the management apparatus 200 can be performed independently and asynchronously.

  Next, the management device 200 is outputting power to the power system based on the connection information received from the power system side and the suppression schedule that has been instructed to each power generation device stored in the management information storage unit 234, and the cumulative total A power generator with a suppression time less than a predetermined time is selected. The predetermined time may be a publicly defined time (eg, 360 hours, 30 days, etc.) as described in Non-Patent Document 1, but is determined by the operator of the management apparatus 200. It may be time.

  FIG. 14 is a diagram illustrating a specific example of the selection process of the power generation device to be suppressed in the management device according to the second embodiment of the present invention. Referring to FIG. 14, first, the management device 200 acquires power generation device information from the management information storage unit 234 (step S1031). Next, the management apparatus 200 determines whether or not the power generation apparatus is a power generation apparatus that has transmitted an emergency suppression rejection signal that is permitted to reject the suppression control (step S1032). Here, when it is determined as “present” in step S1032, that is, when it is determined that the power generation device has transmitted the emergency suppression rejection signal, the management device 200 excludes the power generation device from the suppression target ( Step S1039).

  When it is determined as “None” in step S1032, that is, when the power generation device acquired in step S1031 is not the power generation device that has transmitted the emergency suppression rejection signal, the management device 200 corresponds next from the management information storage unit 234. The weather information of the power generator 120 is acquired (step S1033). The management device 200 determines whether or not the weather information of the power generation device is cloudy or rainy that is not suitable for power generation (step S1034). Here, when it is determined as “cloudy, rainy” in step S1034, that is, when the weather information of the corresponding power generation device 120 is cloudy and rainy that is not suitable for power generation, the management device 200 selects the power generation device. It excludes from suppression object (step S1039).

  When it is determined as “clear” in step S <b> 1034, that is, when the weather information of the power generation device acquired in step S <b> 1033 is clear, the management device 200 next stores the corresponding power generation device 120 from the management information storage unit 234. Operation status information is acquired (step S1035). The function of acquiring the operating status information corresponds to an acquiring unit that acquires the operating status of the power generation device. The management device 200 determines whether or not the operation status information of the power generation device indicates a failure (step S1036). Here, when it is determined as “failure” in step S1036, that is, when the operation status information of the corresponding power generation device 120 indicates failure, the management device 200 excludes the power generation device from the suppression target. (Step S1039).

  On the other hand, when it is determined as “normal” in step S1036, that is, when the operating status of the power generation device acquired in step S1035 indicates a normal operating state, the management device 200 next stores the management information from the management information storage unit 234. The cumulative suppression time information of the corresponding power generator 120 is acquired (step S1037). The cumulative suppression time information can be calculated from the suppression schedule shown in FIG. 10, or may be acquired from a table or the like that manages the cumulative suppression time for each power generator as shown in FIGS. Here, when it determines with "YES" in step S1038, ie, when the cumulative suppression time of the applicable electric power generating apparatus 120 is more than a predetermined upper limit, the management apparatus 200 excludes the electric power generating apparatus from the suppression target. (Step S1039).

  On the other hand, if “NO” is determined in step S1038, that is, if the cumulative suppression time of the power generation device acquired in step S1037 is less than the predetermined upper limit value, the management device 200 adds the power generation device to the suppression target. . If the determination on whether or not all the power generation devices are to be suppressed is not completed, the management device 200 returns to step S1031 and determines whether or not the next power generation device 120 is to be the suppression target (step S1040). ). When the determination as to whether or not all the power generation devices 120 are to be suppressed is completed, creation of a suppression schedule is started.

  When there are many power generators after the selection, it is also preferable to reselect the power generators by the following method. Various variations of the method for reselecting the power generation apparatus are conceivable. For example, a method is conceivable in which the power generation devices are selected by the number that can satisfy the suppression schedule in the order from the shortest total suppression time. Moreover, a method of selecting a power generation device in descending order of the rated capacity among power generation devices having a cumulative suppression time shorter than the predetermined time is also conceivable. Further, a method of selecting a power generation device in descending order of elapsed time from the previous suppression time among power generation devices with a cumulative suppression time shorter than the predetermined time may be considered. Further, instead of the cumulative suppression time, the cumulative suppression power generation amount can be used. Such a cumulative suppression power generation amount can be calculated by subtracting the output power after suppression by suppression control from the power generation capacity or real-time power generation amount inherent to the power generation apparatus. In addition, a method of randomly selecting a predetermined number of power generation devices having a cumulative suppression time or a cumulative suppression power generation amount less than the predetermined time is also conceivable. Moreover, based on the pyranometer data of each power generator or the real-time power generation amount, it is possible to exclude power generation devices having a small power generation amount, that is, having little effective suppression control.

  Of course, you may select an electric power generating apparatus combining these two or more. FIG. 15 is a diagram for explaining an example of processing for reselecting the power generation device to be suppressed by combining the power generation class corresponding to the rated capacity, the cumulative suppression power generation amount, and the solar radiation amount. For example, it is assumed that the power generation device is reselected in the order of the power generation class, the cumulative suppressed power generation amount, and the solar radiation amount. First, referring to the power generation class, the power generation device 1 having the largest power generation class is selected from the power generation devices 1 to 4 whose power generation class is industrial PV or higher. Next, referring to the cumulatively suppressed power generation amount, the power generation device 4 having a small cumulatively suppressed power generation amount is selected from the remaining power generation devices 2 to 4. Furthermore, referring to the amount of solar radiation, the power generation device 2 having a large amount of solar radiation is selected from the remaining power generation devices 2 and 3. As described with reference to FIG. 3, when the suppression schedule received from the power system side cannot be executed at this time, the power generators 3 and 5 may be further selected. The method for reselecting a power generation device as described above is merely an example, and is not limited to the above.

  Referring to FIG. 13 again, the processing after selecting or reselecting the power generation device 120 will be described. The management device 200 creates a suppression schedule to be executed by the selected power generation device based on the suppression schedule received from the power system side (step S104). As this suppression schedule, for example, a round robin method for selecting the power generation devices to be suppressed in the order shown in FIGS. 16 and 17 can be considered. In addition, as illustrated in FIG. 18, a power generation device that can store power to be suppressed or a power generation device that has a load such as a heat pump and can consume power to be suppressed may be selected with priority. Of course, various modifications in consideration of fairness and suppression efficiency among other power generators can be used.

  Next, the management apparatus 200 transmits suppression control information as an instruction of the output power generation amount to the control apparatus 110 that manages the power generation apparatus 120 to be suppressed according to the created PV suppression schedule (step S105). In the example of FIG. 13, the management device 200 transmits suppression control information to the control device 110 that manages the power generation device that has reached the suppression execution time. Alternatively, by including the suppression start time and the suppression end time in the suppression control information, the management device 200 collectively transmits the suppression control information to the control devices 110 connected to all the power generation devices to be suppressed. A transmission method can also be adopted. Moreover, it can replace with the said suppression end time and the suppression continuation time which defined the period which implements suppression control from the suppression start time can also be used.

  The control device 110 that has received the suppression control information displays the presence / absence of suppression on the display unit 113 (step S106). Furthermore, the control device 110 transmits suppression control information to the power generation device 120. The power generation device 120 that has received the suppression control information carries out output power suppression control.

  FIG. 16 is a diagram for explaining the effect of the present embodiment. The example of FIG. 16 shows power generation apparatuses that are in various places and have different weather information and operating states. For example, the power generation device installed in the hospital and transmitting the emergency suppression rejection signal is excluded from the suppression target (see step S1032 in FIG. 14). Further, for example, the power generation device indicating that the weather information is rain is excluded from the suppression target (see step S1034 in FIG. 14). In addition, for example, power generation devices whose cumulative suppression time has reached 360 hours and power generation devices in failure are also excluded from suppression targets (see steps S1036 and S1038 in FIG. 14). And execution of a suppression schedule is performed with the remaining power generator.

  As described above, according to the present embodiment, it is possible to efficiently implement the suppression schedule created on the power system side without causing unfairness between the power generators. The reason is that the management device 200 employs a configuration that selects a power generation device to be suppressed based on the connection information, the cumulative suppression time, and the like.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and further modifications, substitutions, and adjustments are possible without departing from the basic technical idea of the present invention. Can be added. For example, the network configuration, the configuration of each element, and the expression form of a message shown in each drawing are examples for helping understanding of the present invention, and are not limited to the configuration shown in these drawings. For example, in each of the examples of FIGS. 12 and 13, each device 200 performs an answerback on the received message, but the answerback may be omitted.

  Further, in the above-described embodiment, the power generation device has been described with an example assuming a solar power generation device, but the present invention is a power generation device that generates power using renewable energy such as wind power, hydraulic power, tide, and geothermal heat. The present invention can be similarly applied to a case where a configuration in which these are mixed is provided.

  Further, in the above-described embodiment, the power generation device that has transmitted the emergency suppression rejection signal is excluded from the suppression target. However, the information on the power generation device that is not the suppression target is stored in the management information storage unit 234 and read by the control unit 232. You may do it. By doing in this way, it can also be made into the object of suppression control irrespective of the presence or absence of reception of an emergency suppression rejection message.

Finally, a preferred form of the invention is summarized.
[First embodiment]
(Refer to the power generator monitoring and control system according to the first viewpoint)
[Second form]
In the power generator monitoring and control system according to the first aspect,
A power generator monitoring and control system that excludes, from a suppression target, a power generator that has a cumulative transmission count or cumulative suppression time of an output power suppression instruction in a predetermined counting period.
[Third embodiment]
In the power generator monitoring control system of the first or second form,
A power generator monitoring control system that excludes, from a suppression target, a power generator in which a cumulative power generation amount suppressed by an output power suppression instruction in a predetermined total period exceeds a predetermined value.
[Fourth form]
In the power generator monitoring control system according to any one of the first to third aspects,
The management device further includes an acquisition unit that acquires the operating status of the power generation device from the control device,
A power generation device monitoring control system that selects a power generation device to be suppressed based on a history of an instruction to suppress output power to the control device and an operating state of the power generation device.
[Fifth embodiment]
In the power generator monitoring and control system according to the fourth aspect,
A power generation device monitoring control system that excludes the power generation device from a suppression target when the power generation amount of the power generation device is a predetermined value or less.
[Sixth embodiment]
In the power generator monitoring control system according to any one of the first to fifth aspects,
A power generator monitoring control system that acquires type information of the power generator and excludes the power generator from being suppressed when the power generator indicates a predetermined type.
[Seventh form]
In the power generator monitoring control system according to any one of the first to sixth aspects,
The management device is a power generation device monitoring control system that transmits an output power generation amount generated by the power generation device acquired from the control device to the power system.
[Eighth form]
In the seventh power generator monitoring control system,
The control device acquires an output power generation amount generated by the power generation device from the power generation device, and transmits the output power generation amount generated by the acquired power generation device to the management device. .
[Ninth Embodiment]
In the power generator monitoring control system according to any one of the first to eighth aspects,
The power generation device monitoring and control system, wherein the output power suppression instruction instructs the power generation device at least one of a suppressed power generation amount, a suppressed power generation rate, a target power generation amount, a target power generation rate, and a stop signal.
[Tenth embodiment]
In the power generator monitoring control system according to any one of the first to ninth aspects,
The power generator connection control information is a power generator monitoring and control system, which is information indicating a relationship between the power generator and the power system created by the power distribution automation system.
[Eleventh form]
In the power generator monitoring control system according to any one of the first to tenth aspects,
The management device is a power generation device monitoring control system that generates a suppression schedule in the power generation device and suppresses an output power generation amount of the power generation device.
[Twelfth embodiment]
In the power generator monitoring and control system according to any one of the first to eleventh aspects,
Power generator monitoring that selects a power storage device capable of storing suppressed power or a power generator equipped with a load capable of consuming suppressed power as a transmission destination of the output power suppression instruction from among the power generation devices to be suppressed Control system.
[13th form]
(Refer to the electric power system from the second viewpoint)
[14th form]
(See the management device and control device according to the third viewpoint)
[15th form]
(Refer to the method from the fourth viewpoint above.)
[Sixteenth embodiment]
(Refer to the method from the fifth viewpoint above.)
[17th form]
(Refer to the computer program according to the sixth aspect)
The thirteenth to seventeenth aspects can be developed into the second to twelfth aspects as in the first aspect.

  Each disclosure of the above-mentioned patent document and non-patent document is incorporated herein by reference. Within the scope of the entire disclosure (including claims) of the present invention, the embodiments and examples can be changed and adjusted based on the basic technical concept. Various combinations or selections of various disclosed elements (including each element of each claim, each element of each embodiment or example, each element of each drawing, etc.) are possible within the scope of the disclosure of the present invention. It is. That is, the present invention of course includes various variations and modifications that could be made by those skilled in the art according to the entire disclosure including the claims and the technical idea. In particular, with respect to the numerical ranges described in this document, any numerical value or small range included in the range should be construed as being specifically described even if there is no specific description.

DESCRIPTION OF SYMBOLS 1 Power generation device monitoring control system 110,110-1 -110-m Control device 113 Display part 114 Solar radiation meter 115 Power storage device 116 Control means 120,120-1 -120-n Power generation device 200 Management apparatus 201 Storage means 203 Selection means 204 Transmission means 220 Management device (child)
230 Management device (parent)
231 Upper-level bidirectional communication unit 232 Control unit 233 Lower-side bidirectional communication unit 234 Management information storage unit 300 Power system 310 Central power supply system (medium supply system)
311 Supply / Demand Information Management Department 320 Power Distribution Automation System (Distribution System)
321 Connection information management unit 2310 Communication device 2311 Input device 2312 Output device 2320 CPU
2340 storage device

Claims (28)

A control device connected to at least one power generator and capable of controlling the power generator;
A management device communicably connected to at least one of the control devices,
The management device
It was recognized that the generation history of the output power suppression instruction does not satisfy the predetermined condition from among the power generation devices specified by the connection information indicating the power generation device that outputs power to the power system, and that the suppression control is rejected. The power generation device that has transmitted the emergency suppression rejection signal is excluded from the suppression target , and an output power suppression instruction is transmitted to the control device connected to the power generation device that satisfies the predetermined condition.
A power generator monitoring control system characterized by that. Excluding a power generation device having a cumulative transmission count or cumulative suppression time of an output power suppression instruction in a predetermined counting period from a suppression target,
The power generator monitoring and control system according to claim 1. Excluding, from the suppression target, power generation devices in which the cumulative power generation amount suppressed by the output power suppression instruction in a predetermined counting period exceeds a predetermined value;
The power generator monitoring and control system according to claim 1 or 2. The management device further includes an acquisition unit that acquires the operating status of the power generation device from the control device,
The power generation device monitoring control according to any one of claims 1 to 3, wherein a power generation device to be suppressed is selected based on a history of an instruction to suppress output power to the control device and an operating state of the power generation device. system. When the power generation amount of the power generation device is equal to or less than a predetermined value, excluding the power generation device from the suppression target,
The power generator monitoring and control system according to claim 4. When acquiring the type information of the power generation device and the power generation device indicates a predetermined type, excluding the power generation device from the suppression target,
The power generator monitoring and control system according to any one of claims 1 to 5.   The power generation apparatus monitoring control system according to any one of claims 1 to 6, wherein the management apparatus transmits an output power generation amount generated by the power generation apparatus acquired from the control apparatus to the power system.   The control device acquires an output power generation amount generated by the power generation device from the power generation device, and transmits the acquired output power generation amount generated by the power generation device to the management device. The power generator monitoring and control system according to claim 7.   The output power suppression instruction instructs the power generator to at least one of a suppressed power generation amount, a suppressed power generation rate, a target power generation amount, a target power generation rate, and a stop signal. Item 9. The power generator monitoring control system according to any one of items 1 to 8.   The power generator monitoring control system according to any one of claims 1 to 9, wherein the connection information of the power generator is information indicating a relationship between the power generator and the power grid created by the power distribution automation system of the power grid.   The said management apparatus is a power generator monitoring control system as described in any one of Claim 1 to 10 which produces the suppression schedule in the said power generator, and suppresses the output electric power generation amount of the said power generator.   2. The power generation device that is capable of accumulating suppression power or the power generation device that is equipped with a load that can consume suppression power is selected as the transmission destination of the output power suppression instruction from the power generation devices to be suppressed. To 11. Any one of the power generator monitoring control systems. A control device connected to at least one power generator and capable of controlling the power generator;
A management device communicably connected to at least one of the control devices;
An electric power system from which electric power is output from the power generation device,
The management device
It is recognized that the power generation device whose transmission history of the suppression instruction of the output power does not satisfy the predetermined condition from among the power generation devices specified by the connection information indicating the power generation device that outputs power to the power system, and rejecting the suppression control. The power generation device that has transmitted the emergency suppression rejection signal is excluded from the suppression target , and an output power suppression instruction is transmitted to the control device connected to the power generation device that satisfies the predetermined condition.
A power system characterized by that. A control device connected to at least one power generator and capable of controlling the power generator;
Connected to a power system from which power is output from the power generator,
It is recognized that the power generation device whose transmission history of the suppression instruction of the output power does not satisfy the predetermined condition from among the power generation devices specified by the connection information indicating the power generation device that outputs power to the power system, and rejecting the suppression control. The power generation device that has transmitted the emergency suppression rejection signal is excluded from the suppression target , and an output power suppression instruction is transmitted to the control device connected to the power generation device that satisfies the predetermined condition.
A management device characterized by that. Excluding a power generation device having a cumulative transmission count or cumulative suppression time of an output power suppression instruction in a predetermined counting period from a suppression target,
The management device according to claim 14. Excluding, from the suppression target, power generation devices in which the cumulative power generation amount suppressed by the output power suppression instruction in a predetermined counting period exceeds a predetermined value;
The management apparatus according to claim 14 or 15, characterized in that: Furthermore, an acquisition means for acquiring the operating status of the power generation device from the control device,
The management device according to any one of claims 14 to 16, wherein a power generation device to be suppressed is selected based on a history of an instruction to suppress output power to the control device and an operating state of the power generation device. When the power generation amount of the power generation device is equal to or less than a predetermined value, excluding the power generation device from the suppression target,
The management apparatus according to claim 17, wherein: When acquiring the type information of the power generation device and the power generation device indicates a predetermined type, excluding the power generation device from the suppression target,
The management apparatus according to claim 14, wherein   The management device according to any one of claims 14 to 19, wherein an output power generation amount generated by the power generation device acquired from the control device is transmitted to the power system.   The output power suppression instruction instructs the power generator to at least one of a suppressed power generation amount, a suppressed power generation rate, a target power generation amount, a target power generation rate, and a stop signal. The management device according to any one of Items 14 to 20.   The management apparatus according to any one of claims 14 to 21, wherein the connection information of the power generation apparatus is information indicating a relationship between the power generation apparatus and the power system created by the distribution automation system of the power system.   The management device according to any one of claims 14 to 21, wherein the management device creates a suppression schedule in the power generation device and suppresses an output power generation amount of the power generation device.   15. A power storage device capable of storing suppression power or a power generation device equipped with a load capable of consuming suppression power is selected as a transmission destination of the output power suppression instruction from the suppression target power generation devices. To any one of the management devices. It was recognized that the generation history of the output power suppression instruction does not satisfy the predetermined condition from among the power generation devices specified by the connection information indicating the power generation device that outputs power to the power system, and that the suppression control is rejected. The power generation device that has transmitted the emergency suppression rejection signal is excluded from the suppression target , and is connected to the management device that transmits the output power suppression instruction to the control device connected to the power generation device that satisfies the predetermined condition,
A power generation device comprising means for transmitting a predetermined signal requesting the management device not to be selected as a suppression target. It was recognized that the generation history of the output power suppression instruction does not satisfy the predetermined condition from among the power generation devices specified by the connection information indicating the power generation device that outputs power to the power system, and that the suppression control is rejected. A management device that excludes the power generation device that has transmitted the emergency suppression rejection signal from the suppression target, and transmits an output power suppression instruction to the control device connected to the power generation device that satisfies the predetermined condition, and at least one A control device connected to the power generator,
Comprising control means for controlling the power generation device based on an instruction to suppress output power from the management device;
A control device characterized by that. It was recognized that the generation history of the output power suppression instruction does not satisfy the predetermined condition from among the power generation devices specified by the connection information indicating the power generation device that outputs power to the power system, and that the suppression control is rejected. A method of operating a management device that transmits an instruction to suppress output power to a control device connected to a power generation device that satisfies the predetermined condition, excluding the power generation device that has transmitted the emergency suppression rejection signal from the suppression target There,
A step of excluding, from a suppression target, a power generation device whose transmission history of an instruction to suppress output power does not satisfy a predetermined condition from power generation devices identified by connection information indicating a power generation device that outputs power to the power system;
Transmitting an instruction to suppress output power to a control device connected to the power generator that satisfies the predetermined condition;
Including methods. It was recognized that the generation history of the output power suppression instruction does not satisfy the predetermined condition from among the power generation devices specified by the connection information indicating the power generation device that outputs power to the power system, and that the suppression control is rejected. A management device that excludes the power generation device that has transmitted the emergency suppression rejection signal from the suppression target, and transmits an output power suppression instruction to the control device connected to the power generation device that satisfies the predetermined condition, and at least one A method of operating a control device connected to a power generation device,
From the power generation device specified by the connection information indicating the power generation device that outputs power to the power grid from the management device, the power generation device whose output power suppression instruction transmission history does not satisfy the predetermined condition is excluded from the suppression targets. Receiving a suppression instruction created by selecting a power generation device that satisfies the predetermined condition as a suppression target; and
Controlling the power generation device based on an instruction to suppress output power from the management device;
Including methods.

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