Control device used for providing primary adjustment power and method for providing primary adjustment power

Abstract

To provide primary adjusting power without impairing needs for a storage battery in a consumer when the primary adjusting power is provided using a storage battery of the consumer as a resource.SOLUTION: A control device is communicably connected to a frequency measurement device that measures a frequency of a power system, a storage battery, and a power conversion device, acquires a frequency of a power system transmitted from the frequency measurement device, manages the acquired frequency as SOC time-series data, acquires a measurement value of a SOC transmitted from the storage battery, manages the acquired SOC as SOC time-series data, and controls discharging power or charge power of the storage battery based on an adjustment method pattern selected based on frequency time-series data and the SOC time-series data.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a control device used for providing primary control reserve and a method for providing primary control reserve, and in particular to a technology for providing primary control reserve to a power grid using resources such as consumer storage batteries. [Background technology]

[0002] In recent years, the introduction of power generation facilities that use renewable energy sources such as solar power generation and wind power generation, whose power output is easily variable, and the spread of distributed energy resources (hereinafter referred to as "resources") to consumers such as storage batteries and cogeneration, have led to an increased awareness of the importance of energy management that takes into account the balance between supply and demand of electricity. Against this backdrop, there has been progress in the study and construction of power systems (off-grid, microgrid, VPP (Virtual Power Plant), etc.) that adjust the supply and demand balance using resources available at consumers such as factories and homes. In addition, supply and demand adjustment markets have been established recently as a framework for efficiently procuring adjustment power for frequency adjustment and supply and demand adjustment in the power system.

[0003] As a mechanism for adjusting the supply and demand balance using resources present at consumers, for example, Patent Document 1 describes a frequency control device for a power system that controls charging or discharging of a secondary battery depending on the imbalance between power supply and demand. The frequency control device detects the frequency of the power system, determines the deviation between a predetermined reference frequency and the detected frequency, controls charging or discharging of the secondary battery so that the frequency deviation falls within a predetermined range, detects the charge depth of the secondary battery, and corrects the charge depth of the secondary battery so that the detected charge depth of the secondary battery becomes 50%.

[0004] For example, Patent Document 2 describes an electric power management system configured for the purpose of actualizing the value brought about by charge or discharge control of a storage battery based on consumer needs. The electric power management system measures the amount of power received from a commercial power system, measures the amount of power of a storage battery and the amount of power charged and discharged to the storage battery, acquires consumer needs for electricity, including charging and discharging of the storage battery, creates a charge or discharge plan based on the consumer needs, controls charging and discharging based on the charge or discharge plan, acquires information on the price of the received power, calculates the price of the received power based on the measurement results in a predetermined period, and apportions the benefit of the charge or discharge control of the storage battery based on the charge or discharge plan among parties including the consumer, the storage battery owner, and a service provider who provides the storage battery owner with the charge or discharge plan. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2012-16077 A [Patent Document 2] Patent Publication No. 2022-17970 Summary of the Invention [Problem to be solved by the invention]

[0006] In the primary control reserve market, it is expected that storage batteries capable of rapid response to frequency fluctuations will be used as one of the resources. However, when using storage batteries installed at consumers' facilities as a resource, it is necessary to use the storage batteries as a primary control reserve resource to the extent that it does not impair the consumers' storage battery needs, such as the need to maintain SOC at a minimum of 30% for BCP (Business Continuity Plan).

[0007] The frequency control device described in Patent Document 1 controls the charging or discharging of a secondary battery so that the frequency deviation of the power system falls within a predetermined range, but does not provide primary regulation reserve while considering the needs of consumers' storage batteries. Also, the power management system described in Patent Document 2 aims to actualize the value brought about by controlling the charging or discharging of storage batteries based on consumer needs, but does not provide primary regulation reserve while considering consumer needs.

[0008] The present invention has been made in consideration of the above background, and aims to provide a control device used in providing primary control reserve, and a method for providing primary control reserve, which are capable of providing primary control reserve using consumer storage batteries as a resource without compromising the needs of consumers for their storage batteries. [Means for solving the problem]

[0009] One of the present inventions for achieving the above-mentioned object is a control device that performs control to provide a power grid with primary adjustment capacity using a consumer's storage battery as a resource, the control device being configured using an information processing device having a processor and a storage device, and storing frequency time series data that is time series data of the frequency of the power grid, SOC time series data that is time series data of the SOC (State Of Charge) of the storage battery, and a plurality of adjustment method patterns including information indicating a relationship between a deviation in the frequency of the power grid and the discharge power or charge power of the storage battery, and is communicatively connected to a frequency meter that measures the frequency of the power grid, the storage battery, and a power conversion device, acquires the frequency of the power grid sent from the frequency meter, manages the acquired frequency as the SOC time series data, acquires a measured SOC value sent from the storage battery, manages the acquired SOC as the SOC time series data, and controls the discharge power or charge power of the storage battery based on the adjustment method pattern selected based on the frequency time series data and the SOC time series data.

[0010] Other problems and solutions disclosed in the present application will be made clear in the detailed description and drawings. Effect of the Invention

[0011] According to the present invention, when providing primary control reserve using consumer storage batteries as resources, it is possible to provide primary control reserve without compromising the consumer's needs for storage batteries. [Brief description of the drawings]

[0012] [Figure 1] 1 is a diagram showing a schematic configuration of a power supply system described as an embodiment; [Diagram 2] FIG. 2 is a diagram illustrating main functions of a charge or discharge control device. [Figure 3A] FIG. 11 is a diagram showing an example of an adjustment method pattern. [Figure 3B] FIG. 11 is a diagram showing an example of an adjustment method pattern. [Figure 3C] FIG. 11 is a diagram showing an example of an adjustment method pattern. [Figure 3D] FIG. 11 is a diagram showing an example of an adjustment method pattern. [Figure 3E] FIG. 11 is a diagram showing an example of an adjustment method pattern. [Figure 3F] FIG. 11 is a diagram showing an example of an adjustment method pattern. [Figure 4] FIG. 1 is a diagram illustrating a pre-SOC adjustment function. [Diagram 5] 13 is a flowchart illustrating an adjustment power providing process. [Figure 6] 2 is an example of a hardware configuration of an information processing device used to realize a control device. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the following description, the letter "S" before a reference numeral denotes a processing step.

[0014] FIG 1 shows a schematic configuration of a power supply system 1 according to an embodiment of the present invention. As shown in the figure, the power supply system 1 includes a power system 3 and one or more consumers 2 connected to the power system 3. The power system 3 includes, for example, a conventional power generation facility 31 (such as a thermal power generation facility or a nuclear power generation facility) and a renewable energy power generation facility 32 (such as a wind power generation facility or a solar power generation facility (PV: PhotoVoltaic)). The power system 3 may be, for example, another type of power system (such as an off-grid, a microgrid, or a VPP (Virtual Power Plant)) that uses the facilities of the consumers 2 as a resource for adjusting supply and demand.

[0015] The consumer 2 is provided with a consumer distribution line 21, a consumer load 22, one or more storage batteries 40, a power conversion device 41, a frequency meter 45, and a control device 100. The consumer distribution line 21 is wiring (such as in-house wiring) that connects to the power system 3, and is connected to the consumer load 22 and the power conversion device 41. The consumer load 22 is, for example, low-voltage equipment or household electrical equipment, and receives a supply of power from the consumer distribution line 71. The storage batteries 40, the power conversion device 41, and the frequency meter 45 are connected to the control device 100 so as to be able to communicate with each other by wire or wirelessly via a communication facility 50 (such as a serial communication line, a LAN (Local Area Network), or a wireless LAN).

[0016] The storage battery 40 is, for example, a NaS battery, a lithium ion secondary battery, a lead storage battery, a nickel metal hydride battery, or a vanadium redox flow battery, and is, for example, an industrial storage battery installed on the premises of a factory, an office building, or the like, a home storage battery installed on the premises of an apartment building, a detached house, or the like, or a secondary battery mounted on an electric vehicle (EV) used as a resource for Vehicle to Home (V2H). The storage battery 40 notifies the control device 100 via the communication facility 50 of information indicating the state of the storage battery 40 (SOC (State Of Charge), charging power, discharging power, etc., hereinafter referred to as "storage battery state information").

[0017] The power conversion device 41 converts AC in the consumer distribution line 21 into DC and supplies power to the storage battery 40 (charging the storage battery 40). The power conversion device 41 also converts DC from the storage battery 40 into AC and supplies power to the consumer distribution line 21 and the power system 3 (discharging the storage battery 40). The power conversion device 41 is realized, for example, by using a PCS (Power Conditioning System) equipped with an inverter and a converter. The power conversion device 41 charges or discharges the storage battery 40 in response to an instruction sent from the control device 100 via the communication facility 50.

[0018] The frequency meter 45 is connected to the power system 3, measures the frequency of the power system 3 (hereinafter referred to as “system frequency”), and notifies the control device 100 of the measured system frequency via the communication facility 50.

[0019] The control device 100 controls the charging or discharging of the storage battery 40 (receiving charging power from the consumer power distribution line 21 or the power system 3, and supplying discharging power to the consumer power distribution line 21 or the power system 3) by controlling the power conversion device 41 via the communication facility 50. The control device 100 receives the system frequency transmitted from the frequency meter 45. The control device 100 also receives storage battery state information transmitted from the storage battery 40. The control device 100 provides primary regulation capacity to the power system 3 by controlling the charging or discharging of the storage battery 40 based on the received system frequency. Details of the functions of the control device 100 related to providing primary regulation capacity will be described later.

[0020] In addition, all or part of the frequency meter 45, the control device 100, and the power conversion device 41 may be realized as elements of, for example, a smart meter, a Home Energy Management System (HEMS), a Building Energy Management System (BEMS), a Factory Energy Management System (FEMS), or the like.

[0021] 2 is a block diagram for explaining main functions of the control device 100. As shown in the figure, the control device 100 includes the following functions: a storage unit 110, a frequency measurement unit 120, an SOC acquisition unit 125, an adjustment method pattern generation unit 130, an adjustment method selection unit 140, an adjustment method pattern automatic generation unit 135, and a charge / discharge control unit 150.

[0022] Of the above functions, the storage unit 110 stores information (data) on frequency time series data 111, SOC time series data 112, adjustment method pattern group 113, selected adjustment method 114, and machine learning model 115.

[0023] The frequency time series data 111 includes time series information of the grid frequency from a predetermined time point in the past to the latest acquisition time point, and the SOC time series data 112 includes time series information of the SOC of the storage battery 40 from a predetermined time point in the past to the latest acquisition time point.

[0024] The adjustment method pattern group 113 includes a plurality of patterns (hereinafter referred to as "adjustment method patterns") of control methods (hereinafter referred to as "adjustment methods") for charging or discharging when the control device 100 provides primary adjustment capacity to the power grid 3. The adjustment method pattern includes information indicating a charge or discharge control amount (charging power or discharging power) of the storage battery 40 according to a deviation (hereinafter referred to as "frequency deviation") from a reference value (50 Hz or 60 Hz) of the system frequency.

[0025] The selected adjustment method 114 includes information indicating an adjustment method pattern currently being applied (adopted) and information regarding the specific content of the adjustment method pattern. The machine learning model 115 will be described later.

[0026] The frequency measurement unit 120 shown in the figure receives the system frequency transmitted from the frequency measurement instrument 45, and manages the received system frequency as frequency time series data 111 in association with information indicating the date and time when the system frequency was measured.

[0027] The SOC acquisition unit 125 receives battery status information by communicating with devices or equipment capable of acquiring (or measuring) battery status information including SOC, such as the storage battery 40 or a power conditioner installed at the consumer 2, and manages the SOC included in the received battery status information as SOC time series data 112 in association with information indicating the date and time when the SOC was measured.

[0028] The adjustment method pattern generation unit 130 generates an adjustment method pattern through interactive processing with a user, and manages (registers) the generated adjustment method pattern as an adjustment method pattern group 113. The adjustment method pattern generation unit 130 performs the above-mentioned interactive processing while presenting, for example, the frequency time series data 111, information based on the frequency time series data 111, and the SOC time series data 112 and information based on the SOC time series data 112 to the user, generates an adjustment method pattern based on the information accepted from the user, and manages the generated adjustment method pattern as the adjustment method pattern group 113.

[0029] The adjustment method pattern automatic generation unit 135 generates an adjustment method pattern based on information obtained by analyzing the frequency time series data 111 and information obtained by analyzing the SOC time series data 112, and manages the generated adjustment method pattern as an adjustment method pattern group 113. For example, the adjustment method pattern automatic generation unit 135 generates learning data by using the frequency time series data 111 and the SOC time series data 112 as explanatory variables and associating the explanatory variables with adjustment methods prepared in advance (for example, set by a user) as labels (objective variables). Then, the adjustment method pattern automatic generation unit 135 generates an adjustment method pattern using the machine learning model 115 learned from the generated learning data.

[0030] The adjustment method selection unit 140 selects an adjustment method pattern when the charge / discharge control unit 150 provides the primary control capacity, and manages the selected adjustment method pattern as the selected adjustment method 114. Specifically, the adjustment method selection unit 140 selects one of the adjustment method patterns from the adjustment method pattern group 113, and manages information specifying the selected adjustment method pattern as the selected adjustment method 114. For example, the adjustment method selection unit 140 accepts a designation of an adjustment method pattern from a user while presenting information based on the frequency time series data 111 and information based on the SOC time series data 112 to the user, and manages the designated adjustment method pattern as the selected adjustment method 114. In addition, the adjustment method selection unit 140 selects an adjustment method pattern obtained by inputting the latest frequency time series data and the latest SOC time series data to the above-mentioned machine learning model 115 from the adjustment method pattern group 113, and manages the selected adjustment method pattern as the selected adjustment method 114.

[0031] The charge / discharge control unit 150 controls the charging or discharging of the storage battery 40 by controlling the power conversion device 41 via the communication facility 50. As shown in the figure, the charge / discharge control unit 150 has each function of a SOC adjustment unit 151 and a primary control capability providing unit 152.

[0032] The SOC adjustment unit 151 controls the power conversion device 41 so that the SOC of the storage battery 40 becomes a predetermined value. For example, the SOC adjustment unit 151 predicts future changes in SOC based on the SOC time-series data 112 to obtain a value of SOC required for the storage battery 40 before the provision of primary control reserve, and controls the power conversion device 41 so that the SOC of the storage battery 40 becomes the obtained value (hereinafter referred to as "pre-SOC value"). Note that the above-mentioned pre-SOC value is set to a value such that the SOC of the storage battery 40 does not become less than a lower limit value of SOC (hereinafter referred to as "SOC lower limit value") during or after the provision of primary control reserve. Also, the pre-SOC value is set to a value such that the SOC of the storage battery 40 does not become more than an upper limit value of SOC (hereinafter referred to as "SOC upper limit value") during or after the provision of primary control reserve.

[0033] The primary control capacity providing unit 152 provides primary control capacity to the power system 3 by controlling the power conversion device 41 based on the selected adjustment method 114 in response to the system frequency received from the frequency measurement unit 120. When providing primary control capacity, the primary control capacity providing unit 152 performs, for example, proportional control or limiter control (if requirements are met) in accordance with the adjustment method pattern. The primary control capacity providing unit 152 starts or ends the provision of primary control capacity, for example, at a timing (schedule) designated by the user.

[0034] <Adjustment method pattern> Next, the adjustment mode pattern will be described. As described above, the adjustment mode pattern includes information indicating the charge or discharge control amount (charge power or discharge power) of the storage battery 40 according to the frequency deviation.

[0035] An example of an adjustment method pattern is shown in Fig. 3A. The horizontal axis of the graph shown in the figure is the frequency deviation, and the vertical axis is the output (discharge power or charge power) of the storage battery 40. When the output of the storage battery 40 is a positive value (plus), the storage battery 40 is discharged, and when the output is a negative value (minus), the storage battery 40 is charged.

[0036] The illustrated adjustment method is an adjustment method in which the output of the storage battery 40 is proportionally controlled by a predetermined speed arbitration rate according to the frequency deviation. In this example, in a region where the frequency deviation is on the negative side of the dead band, the discharge power of the storage battery 40 is increased at a predetermined rate as the absolute value of the frequency deviation increases. Also, in a region where the frequency deviation is on the positive side of the dead band, the charge power of the storage battery 40 is increased at a predetermined rate as the absolute value of the frequency deviation increases. The above rate (slope of the line) corresponds to the reciprocal of the speed arbitration rate. That is, the larger the value of the speed arbitration rate, the smaller the slope of the line, and the slower the response to the change in the frequency deviation (change in the output of the storage battery 40). Also, the smaller the speed arbitration rate, the larger the slope of the line, and the sharper the response to the change in the frequency deviation (change in the output of the storage battery 40).

[0037] In this example, a dead zone is provided within a predetermined range centered on the origin (where the frequency deviation is zero), in which the output of the storage battery 40 is not changed in response to changes in the frequency deviation. Providing a dead zone in this manner makes it possible to prevent, for example, deterioration of the storage battery 40 caused by excessive provision of primary control power or frequent charging or discharging. It is not necessary to provide a dead zone. Figure 3B shows an example of the adjustment method pattern in Figure 3A when no dead zone is provided.

[0038] Another example of the adjustment method pattern is shown in Fig. 3C. This example is similar to the adjustment method pattern in Fig. 3A, but when the frequency deviation falls below a predetermined value or exceeds a predetermined value, the absolute value of the output of the storage battery 40 (charging power or discharging power) is limited so as not to exceed a predetermined range (a limiter is provided within a range that satisfies the requirements of the primary adjustment capability). Note that the frequency deviation is usually (almost) balanced around the standard (reference) frequency except when an abnormality occurs.

[0039] By limiting the charging power or discharging power of the storage battery 40 in this manner, it is possible to prevent the SOC of the storage battery 40 from deviating from the range intended by the consumer 2, thereby preventing the needs of the consumer 2 from being compromised.

[0040] Fig. 3D shows another example of the adjustment method pattern. In this example, when the absolute value of the frequency deviation is less than a preset threshold, proportional control is performed using a first speed arbitration rate, and when the absolute value is equal to or greater than the threshold, proportional control is performed using a second speed arbitration rate that is smaller than the first speed arbitration rate. Specifically, in this example, the speed arbitration rate is the first speed arbitration rate until the absolute value of the frequency deviation exceeds a certain value, and when the absolute value of the frequency deviation exceeds the certain value, the speed arbitration rate is the second speed arbitration rate.

[0041] According to this adjustment method pattern, while the absolute value of the frequency deviation does not exceed a certain value, it is possible to suppress fluctuations in the SOC of the storage battery 40 and conserve the SOC, and also to suppress the impact on the needs of the storage battery 40 of the consumer 2. Furthermore, when the absolute value of the frequency deviation exceeds a certain value, it is possible to provide a large amount of primary adjustment capacity and a long supply duration. Note that, although no limit (limiter (if requirements are met)) is set on the charging power or discharging power in this example, a limit may be set.

[0042] FIG. 3E shows another example of the adjustment method pattern. In this example, when the frequency deviation is a negative value, proportional control is performed by the second speed arbitration rate when the frequency deviation is less than a preset threshold, and proportional control is performed by the first speed arbitration rate when the frequency deviation is equal to or greater than the threshold. Specifically, as in FIG. 3D, when the frequency deviation is a negative value, the speed arbitration rate is proportionally controlled by the first speed arbitration rate at which the change in the output of the storage battery 40 relative to the change in the frequency deviation is small until just before the absolute value of the frequency deviation exceeds a certain value, and when the absolute value of the frequency deviation exceeds a certain value, the speed arbitration rate is proportionally controlled by the second speed arbitration rate at which the change in the output of the storage battery 40 relative to the change in the frequency deviation is large. In this example, when the frequency deviation is a positive value, the charging amount is increased as the frequency deviation increases, as in FIG. 3B.

[0043] According to this adjustment method pattern, it is possible to provide a large primary control power when the system frequency drops. Also, when the system frequency is high, the charging power becomes large, which can prevent a shortage of SOC for the needs of the consumer 2. Note that, although no limit (limiter) is set on the charging power or discharging power in this example, a limit may be set.

[0044] 3F shows another example of the adjustment mode pattern. This example is an adjustment mode that places emphasis on maintaining the SOC of the storage battery 40 at a value required by the consumer 2. In this example, the adjustment mode pattern automatic generation unit 135 automatically generates an adjustment mode pattern based on information obtained by analyzing the frequency time series data 111 and the SOC time series data 112, and the charge / discharge control unit 150 selects the generated adjustment mode pattern and controls the output of the storage battery 40 based on the adjustment mode pattern.

[0045] 3E to an adjustment mode pattern (dotted line) generated by the adjustment mode pattern automatic generation unit 135 based on the frequency time series data 111 and the SOC time series data 112. In this way, the adjustment mode pattern automatic generation unit 135 generates an adjustment mode pattern based on the contents of the frequency time series data 111 and the SOC time series data 112 when necessary, and the charge / discharge control unit 150 controls the output of the storage battery 40 based on the generated adjustment mode pattern, so that it is possible to maximize the primary adjustment capacity provided within a range that does not impair the storage battery needs of the consumer 2.

[0046] <Pre-SOC adjustment function> 4 is a graph showing how, before the provision of primary control capacity, the SOC adjustment unit 151 of the charge / discharge control unit 150 predicts future changes in SOC based on the SOC time-series data 112 to obtain a prior SOC value, and controls the charge or discharge of the storage battery 40 to achieve the obtained SOC. The horizontal axis of the graph represents time, and the vertical axis represents the SOC of the storage battery 40.

[0047] As shown in the figure, before the scheduled period for providing primary control capacity by the storage battery 40 arrives (before the adjustment capacity provision time frame arrives), the SOC adjustment unit 151 predicts future changes in SOC from the present based on the SOC time-series data 112 to obtain a prior SOC value. As shown in the figure, the prior SOC value is set to a value such that the SOC of the storage battery 40 is equal to or greater than the SOC lower limit value and equal to or less than the SOC upper limit value during the provision of primary control capacity (within the adjustment capacity provision time frame) or after the provision (after the adjustment capacity provision time frame has elapsed).

[0048] <Processing example> 5 is a flowchart for explaining an example of a process (hereinafter referred to as "primary control capacity provision process S500") performed by the control device 100 when providing primary control capacity. The following description will be given with reference to the same figure. It is assumed that at the start of the primary control capacity provision process S500, information required for executing the process (frequency time series data 111, SOC time series data 112, adjustment method pattern group 113, and selected adjustment method 114) has been stored or set in the memory unit 110.

[0049] As shown in the figure, the control device 100 monitors whether the start time of providing primary control reserve is approaching (whether the time from the present to the start time of providing reserve is equal to or shorter than a predetermined time) (S511). Note that the start time of providing reserve may be scheduled in advance by a user, for example, or may be automatically set by the control device 100 in response to changes in the grid frequency.

[0050] When the adjustment method selection unit 140 of the control device 100 determines that the time to start providing the primary control capacity is approaching (S511: YES), it selects an adjustment method pattern (manages it as the selected adjustment method 114) (S512).

[0051] Next, the SOC adjustment unit 151 of the control device 100 calculates a preliminary SOC (S513), and controls the power conversion device 41 so that the SOC of the storage battery 40 becomes the calculated preliminary SOC (S514).

[0052] Next, the control device 100 monitors whether the time to start providing primary control reserve has arrived (S515). When the control device 100 determines that the time to start providing primary control reserve has arrived (S515: YES), it starts providing primary control reserve based on the adjustment method pattern selected in S512 (S516).

[0053] During the provision of primary control reserve, the control device 100 determines whether or not to end the provision of primary control reserve (S517). For example, when an operation (instruction) to end the provision is received from a user, the control device 100 determines to end the provision of primary control reserve. Furthermore, when a pre-scheduled end time arrives, the control device 100 determines to end the provision of primary control reserve. When it is determined to end the provision of primary control reserve (S517), the control device 100 ends the provision of primary control reserve (S518). After that, the process returns to S511.

[0054] As described above, according to the control device 100 of this embodiment, in providing primary control capacity using the storage battery 40 as a resource, it is possible to provide the required primary control capacity without compromising the needs of the storage battery 40 on the consumer 2 side.

[0055] <Example of information processing device> 6 is an example of a hardware configuration of an information processing device used to realize the control device 100. The illustrated information processing device 10 includes a processor 11, a main storage device 12, an auxiliary storage device 13, an input device 14, an output device 15, and a communication device 16. Specific examples of the information processing device 10 include personal computers, office computers, various server devices, general-purpose machines, and the like. The information processing device 10 may be realized in whole or in part using virtual information processing resources provided using a virtualization technology, such as a virtual server provided by a cloud system. The control device 10 may be realized using a plurality of information processing devices 10 connected to each other so as to be able to communicate with each other.

[0056] In the figure, the processor 11 is configured using, for example, a CPU (Central Processing Unit), an MPU (Micro Processing Unit), a GPU (Graphics Processing Unit), an FPGA (Field Programmable Gate Array), an ASIC (Application Specific Integrated Circuit), an AI (Artificial Intelligence) chip, etc.

[0057] The main memory device 12 is a device that stores programs and data, and is, for example, a Read Only Memory (ROM), a Random Access Memory (RAM), or a non-volatile memory (Non Volatile RAM (NVRAM)).

[0058] The auxiliary storage device 13 is, for example, an SSD (Solid State Drive), a hard disk drive, an optical storage device (CD (Compact Disc), DVD (Digital Versatile Disc), etc.), a storage system, an IC card, a read / write device for a recording medium such as an SD card or an optical recording medium, a storage area of ​​a cloud server, etc. Programs and data can be read into the auxiliary storage device 13 via a recording medium reader or a communication device 16. The programs and data stored (memorized) in the auxiliary storage device 13 are read into the main storage device 12 as needed.

[0059] The input device 14 is an interface that accepts input of various information (device information, etc.) from the outside, and is, for example, a keyboard, a mouse, a touch panel, a card reader, a pen-input tablet, a voice input device, or the like.

[0060] The output device 15 is an interface that outputs various information such as the progress and results of processing, various control information, control commands, etc. The output device 15 is, for example, a display device (LCD (Liquid Crystal Display), graphic card, etc.) that visualizes the various information, a device that converts the various information into voice (voice output device (speaker, etc.)), and a device that converts the various information into text (printer, etc.). For example, the information processing device 10 may be configured to input and output information to and from other devices via the communication device 16.

[0061] The input device 14 and the output device 15 constitute a user interface for receiving information from the user and presenting information.

[0062] The communication device 16 is a device that realizes communication (wired communication or wireless communication) with other devices via a communication infrastructure such as a communication network 5, and is configured using, for example, a NIC (Network Interface Card), a wireless communication module, a USB module, etc.

[0063] The information processing device 10 may be implemented with, for example, an operating system, a file system, a DBMS (DataBase Management System) (relational database, NoSQL, etc.), a KVS (Key-Value Store), etc.

[0064] The functions of the control device 100 are realized by the processor 11 of the information processing device 10 reading and executing a program stored in the main memory device 12, or by the functions of the hardware (FPGA, ASIC, AI chip, etc.) constituting the control device 100. The control device 100 stores the various information (data) described above, for example, as a table of a database or a file managed by a file system.

[0065] Although the embodiment of the present invention has been described above in detail, the above description is for the purpose of facilitating understanding of the present invention and does not limit the present invention. The present invention may be modified or improved without departing from the spirit thereof, and the present invention naturally includes equivalents thereof. For example, the above embodiment has been described in detail to explain the present invention in an easily understandable manner, and is not necessarily limited to those having all of the configurations described. In addition, it is possible to add, delete, or replace part of the configuration of the above embodiment with other configurations. [Explanation of symbols]

[0066] 1. Power supply system 2 Consumer 3 Power system 21 Customer distribution line 22 Consumer load 40 Storage Battery 41 Power conversion device 45 Frequency Measuring Instrument 50 Communication Equipment 100 Control device 110 Storage section 111 Frequency time series data 112 SOC time series data 113 Adjustment Method Pattern Group 114 Selected adjustment method 120 Frequency measurement section 125 SOC Acquisition Department 130 Adjustment method pattern generator 135 Adjustment method pattern automatic generation unit 140 Adjustment method selection section 150 Charge / discharge control unit 151 SOC adjustment section 152 Primary adjustment force providing section S500 Primary control reserve provision processing

Claims

1. A control device that performs control to provide a primary control reserve using a consumer's storage battery as a resource to a power grid, The information processing device includes a processor and a storage device. Frequency time series data which is time series data of the frequency of the power system; SOC time series data which is time series data of the SOC (State Of Charge) of the storage battery; A plurality of adjustment method patterns including information indicating a relationship between a deviation in the frequency of the power grid and a discharge power or a charge power of the storage battery; Remember, A frequency measuring device that measures the frequency of the power system, the storage battery, and a power conversion device are communicatively connected to each other; Acquire a frequency of the power system transmitted from the frequency meter, and manage the acquired frequency as the SOC time series data; Acquire a measurement value of SOC sent from the storage battery, and manage the acquired SOC as the SOC time-series data; controlling the discharge power or the charge power of the storage battery based on the adjustment method pattern selected based on the frequency time series data and the SOC time series data; Control device.

2. The control device according to claim 1 , the plurality of adjustment mode patterns include an adjustment mode pattern that proportionally controls the discharge power or the charge power of the storage battery according to the deviation at a predetermined speed arbitration rate; Control device.

3. The control device according to claim 1 , the plurality of adjustment method patterns include an adjustment method pattern that performs proportional control using a first speed arbitration rate when the absolute value of the deviation is less than a preset threshold value, and performs proportional control using a second speed arbitration rate smaller than the first speed arbitration rate when the absolute value is equal to or greater than the threshold value. Control device.

4. The control device according to claim 1 , The plurality of adjustment method patterns include: When the deviation is a negative value and the absolute value of the deviation is less than a preset threshold value, proportional control is performed using a first speed arbitration rate; When the deviation is a negative value and the absolute value is equal to or greater than the threshold value, proportional control is performed using a second speed arbitration rate that is smaller than the first speed arbitration rate; When the deviation is a positive value, proportional control is performed according to a predetermined speed arbitration rate. Including adjustment method patterns, Control device.

5. The control device according to claim 1 , A machine learning model trained using learning data generated using the frequency time series data and the SOC time series data as explanatory variables and the adjustment method pattern set for the explanatory variables as a response variable is stored; The plurality of adjustment method patterns include an adjustment method pattern generated by inputting the frequency time series data and the SOC time series data to the machine learning model. Control device.

6. The control device according to claim 1 , the plurality of adjustment method patterns include an adjustment method pattern having a dead zone in a region where the absolute value of the deviation is equal to or smaller than a preset value; Control device.

7. The control device according to claim 1 , The plurality of adjustment method patterns include an adjustment method pattern in which a value of the discharge power or the charge power of the storage battery is limited so as not to deviate from a preset range in an area where the absolute value of the deviation is equal to or greater than a preset value. Control device.

8. An information processing device having a processor and a storage device, which performs control for providing a primary control reserve using a storage battery of a consumer as a resource to a power grid, Frequency time series data which is time series data of the frequency of the power system; SOC time series data which is time series data of the SOC (State Of Charge) of the storage battery; A plurality of adjustment method patterns including information indicating a relationship between a deviation in the frequency of the power grid and a discharge power or a charge power of the storage battery; storing the A step of communicatively connecting a frequency meter that measures a frequency of the power system, the storage battery, and a power conversion device; acquiring a frequency of the power grid transmitted from the frequency measuring device, and managing the acquired frequency as the SOC time-series data; acquiring a measured value of SOC transmitted from the storage battery, and managing the acquired SOC as SOC time-series data; controlling the discharge power or the charge power of the storage battery based on the adjustment method pattern selected based on the frequency time series data and the SOC time series data; A method for providing primary control reserve by carrying out the above.

9. A method for providing primary control reserve according to claim 8, the plurality of adjustment mode patterns include an adjustment mode pattern that proportionally controls the discharge power or the charge power of the storage battery according to the deviation at a predetermined speed arbitration rate; Method of providing primary adjustment force.

10. A method for providing primary control reserve according to claim 8, the plurality of adjustment method patterns include an adjustment method pattern that performs proportional control using a first speed arbitration rate when the absolute value of the deviation is less than a preset threshold value, and performs proportional control using a second speed arbitration rate smaller than the first speed arbitration rate when the absolute value is equal to or greater than the threshold value. Method of providing primary adjustment force.

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