A clustering control method and system for regulating capacity of energy storage station

Abstract

The present invention proposes a clustering control method and system for energy storage station regulation capacity, which relates to the field of power system energy storage technology. It performs two clustering processes on energy storage stations, fully considering the impact of the energy storage station status information, output delay, and communication delay information of the energy storage station on the rapid auxiliary service of the power system, and distinguishes energy storage stations that meet the requirements of rapid auxiliary control; for energy storage stations that meet the requirements of rapid auxiliary control, by collecting their operating status in real time, the energy storage power and capacity margin of each energy storage station are calculated, ensuring the timeliness of data updates; finally, based on the energy storage power and capacity margin of the energy storage station, energy storage stations with large energy storage power and high capacity margin are preferentially controlled to participate in the rapid auxiliary service, ensuring that the regulation capacity of the energy storage stations participating in the rapid auxiliary service is consistent with expectations, improving the efficiency of the auxiliary service, and effectively improving the overall performance of the power system. In addition, the system structure proposed by the present invention is simple and easy to implement.

Description

Technical Field

[0001] The present invention relates to the technical field of power system energy storage technology, and in particular to a clustering control method for regulating capacity of an energy storage station, and also to a clustering control system for regulating capacity of an energy storage station. Background Art

[0002] Ancillary services for the power system refer to services provided by power generation companies, grid companies, energy storage facilities, electricity users participating in market-based transactions, and third parties such as aggregators and virtual power plants, in addition to normal electricity production, transmission, and usage, to maintain the safe and stable operation of the power system and ensure power quality. These services include primary frequency regulation, automatic generation control (AGC), peak shaving, reactive power regulation, backup, and black start services. Energy storage facilities, however, vary significantly in storage capacity, regulation speed, core application, operating mode, and lifespan characteristics across power generation companies, grid companies, and other user-side energy storage stations. This results in varying regulation performance, and therefore distinct types and strategies for the power system ancillary services they can provide.

[0003] Energy storage is typically divided into those participating in optimized operation and those participating in emergency control, based on the station's regulation speed, data latency, storage power, and capacity. Energy storage stations participating in emergency control are categorized as 10-millisecond control stations, 100-millisecond control stations, and second-level control stations; while those participating in optimized operation can be categorized as second-level optimized control stations, minute-level optimized control stations, and hour-level optimized control stations. The energy storage station's ability to regulate various types of power system services, particularly its ability to provide rapid frequency and power regulation auxiliary services, is not only related to the station's response speed, power, and capacity, but also to the station's local measurement and control system's ability to communicate with the dispatching master station, its ability to parse and execute data for the dispatching master station, and its communication speed, latency characteristics, and reliability with the dispatching master station.

[0004] To achieve rapid coordinated control of energy storage stations, it is necessary to synchronize and align their measurement data, and prioritize control over those with the fastest response times. However, due to varying communication network congestion and the uncertainty of the output delays from the synchronized data concentrators within the power plant, the response speed, power, and capacity margin of the energy storage stations themselves can change in real time depending on the operating point or faults in the energy storage stations themselves. This can lead to inconsistent regulation capabilities for energy storage stations participating in rapid ancillary services, resulting in inefficient ancillary services and impacting the overall performance of the power system. Summary of the Invention

[0005] The present invention aims to provide a cluster energy storage operation test system and test method to solve the above technical problems. While accurately simulating the operation and fault characteristics of the power grid, it can also accurately reflect the control characteristics of new energy and energy storage equipment of different types and manufacturers.

[0006] In order to address at least one of the above technical deficiencies, the present invention provides a clustering control method for the regulation capacity of energy storage stations, which clusters and controls energy storage stations according to their regulation capacity, ensures that the regulation capacity of energy storage stations participating in rapid auxiliary services is consistent with expectations, improves the efficiency of auxiliary services, and effectively enhances the overall performance of the power system.

[0007] The present invention also provides an energy storage station regulation capacity clustering control system, which has a simple structure and is easy to implement, and is used to implement an energy storage station regulation capacity clustering control method.

[0008] In order to solve the above technical problems, the technical solutions of the present invention are as follows:

[0009] A clustering control method for regulating capacity of an energy storage station comprises the following steps:

[0010] Acquire measurement information from all energy storage stations participating in the auxiliary service and perform synchronization and alignment processing to obtain initial information; the initial information includes energy storage station status information and output delay and communication delay information;

[0011] Perform the first clustering based on the energy storage station status information of different energy storage stations, and screen out the energy storage stations that do not participate in the fast auxiliary control;

[0012] The remaining energy storage stations are clustered again based on their output delay and communication delay information, dividing them into a group of energy storage stations participating in rapid auxiliary control and a group of energy storage stations to be allocated.

[0013] The system determines the operating status of each energy storage station in the group participating in the rapid auxiliary control in real time, calculates the energy storage power and capacity margin of each energy storage station, and sorts the energy storage stations in the group participating in the rapid auxiliary control according to the energy storage power and capacity margin. Based on the sorting results, several energy storage stations are selected to participate in the rapid auxiliary service.

[0014] The present invention performs two clustering processes on energy storage stations, fully considering the impact of the energy storage station status information, output delay and communication delay information of the energy storage station on the rapid auxiliary service of the power system, and distinguishes the energy storage stations that meet the requirements of rapid auxiliary control; at the same time, for energy storage stations that meet the requirements of rapid auxiliary control, by collecting their operating status in real time, the energy storage power and capacity margin of each energy storage station are calculated, thereby ensuring the timeliness of data updates; finally, the energy storage stations are sorted according to their energy storage power and capacity margin, that is, their regulation capacity, and energy storage stations with large energy storage power and high capacity margin are preferentially controlled to participate in the rapid auxiliary service, thereby ensuring that the regulation capacity of the energy storage stations participating in the rapid auxiliary service is consistent with expectations, improving the efficiency of the auxiliary service, and effectively improving the overall performance of the power system.

[0015] Furthermore, the energy storage station status information includes the energy storage body response time; the process of performing the first clustering based on the energy storage station status information of different energy storage stations and screening out energy storage station groups that do not participate in the fast auxiliary control is specifically as follows:

[0016] If the energy storage station's energy storage body response time is less than the preset 10-millisecond control response time, the energy storage station is classified into the 10-millisecond control energy storage station group;

[0017] If the energy storage body response time of the energy storage station is greater than the preset 10-millisecond control response time but less than the preset 100-millisecond control response time, the energy storage station is classified into the 100-millisecond control energy storage station group;

[0018] If the energy storage body response time of the energy storage station is greater than the preset 100-millisecond control response time but less than the preset second-level control response time, the energy storage station is classified into the second-level control energy storage station group;

[0019] If the energy storage body response time of the energy storage station is greater than the preset second-level control response time, the energy storage station is divided into an energy storage station group that does not participate in the fast auxiliary control and is screened out from the fast auxiliary control.

[0020] In the above scheme, the first clustering of the energy storage station is a classification process for the energy storage station based on the response of the energy storage station itself. The only factor that this clustering process depends on is the response time of the energy storage station itself, and it can be easily implemented. Moreover, after the first clustering is divided into the 100-millisecond-level control energy storage station group and other influencing factors are added, it is impossible to update it to the 10-millisecond-level control energy storage station group, that is, the energy storage station with a low-level clustering result in the first clustering cannot be classified into a high-level in the subsequent clustering process. Therefore, the first clustering process is essentially a pre-classification process for the subsequent process, which can effectively reduce the data calculation and scheduling amount of the subsequent clustering process, and improve the clustering control efficiency of the present invention.

[0021] Furthermore, the process of performing a second clustering of the energy storage stations participating in the fast auxiliary control based on the output delay and communication delay information of the remaining energy storage stations after screening, and dividing the energy storage stations into a group of energy storage stations participating in the fast auxiliary control and a group of energy storage stations to be allocated is specifically as follows:

[0022] The delayed response time of each energy storage station is obtained based on the output delay and communication delay information of the remaining energy storage stations after screening. The overall response time of each energy storage station is calculated online in combination with the response time of the energy storage body.

[0023] If the overall response time of the energy storage station is less than the preset 10-millisecond control response time, the energy storage station will be retained in the 10-millisecond control energy storage station group;

[0024] If the overall response time of the energy storage station is greater than the preset 10-millisecond control response time but less than the preset 100-millisecond control response time, the energy storage station will be retained in the 100-millisecond control energy storage station group;

[0025] If the overall response time of the energy storage station is greater than the preset 100-millisecond control response time but less than the preset second-level control response time, the energy storage station will be retained in the second-level control energy storage station group;

[0026] If the overall response time of the energy storage station is greater than the preset second-level control response time, the energy storage station will be retained in the energy storage station group to be allocated;

[0027] The ten-millisecond control energy storage station group, the one-hundred-millisecond control energy storage station group and the second-level control energy storage station group are regarded as participating in the rapid auxiliary control energy storage station group.

[0028] In the above scheme, the second clustering of energy storage stations fully considers the output delay and communication delay of the energy storage stations, which can ensure that the clustering results of the energy storage stations are more in line with the actual situation and further ensure that the regulation capabilities of the energy storage stations participating in the rapid auxiliary service are consistent with expectations.

[0029] Furthermore, the process of determining the operating status of each energy storage station in the group of energy storage stations participating in the rapid auxiliary control in real time, calculating the energy storage power and capacity margin of each energy storage station, sorting the energy storage stations in the group of energy storage stations participating in the rapid auxiliary control according to the energy storage power and capacity margin, and selecting a number of energy storage stations to participate in the rapid auxiliary service based on the sorting results is specifically as follows:

[0030] For the energy storage stations in the 10-millisecond control energy storage station group, the system collects the changes in the energy storage power and capacity margin of each energy storage station and its operating status in real time. Based on the operating status of each energy storage station, the energy storage power and capacity margin of each energy storage station are calculated. The energy storage stations are then sorted according to their energy storage power and capacity margin, and the energy storage stations are selected according to the sorting results to participate in the 10-millisecond control service.

[0031] For the energy storage stations in the 100-millisecond control energy storage station group, the system collects the changes in the energy storage power and capacity margin of each energy storage station and its operating status in real time. Based on the operating status of each energy storage station, the system calculates the energy storage power and capacity margin of each energy storage station, sorts the energy storage stations by energy storage power and capacity margin, and selects the energy storage stations to participate in the 100-millisecond control service based on the sorting results.

[0032] For the energy storage stations in the second-level control energy storage station group, the changes in the energy storage power and capacity margin of each energy storage station and the operating status of the energy storage station are collected in real time. According to the operating status of the energy storage station, the energy storage power and capacity margin of each energy storage station are calculated, and the energy storage stations are sorted according to the energy storage power and capacity margin. According to the sorting results, the energy storage stations are selected to participate in the second-level control service.

[0033] In the above scheme, participating rapid auxiliary control energy storage stations are divided into three levels. In practical applications, the number of levels can be set according to actual needs to improve clustering accuracy. During the control process, the more optimal energy storage station is selected from the corresponding level according to the needs of the power system's rapid auxiliary services. This not only improves the efficiency of system dispatch control, but also makes the dispatch control results of the energy storage stations more consistent with actual conditions, making the regulation capabilities of the energy storage stations participating in the rapid auxiliary services more closely matched to actual needs, thereby improving the efficiency of auxiliary services and effectively enhancing the overall performance of the power system.

[0034] Furthermore, the operating state of the energy storage station includes a normal state and a fault state. If the energy storage station has more fault states, its energy storage power and capacity margin will be smaller.

[0035] In the above scheme, since the operating status of the energy storage station is collected in real time, the real-time status of the energy storage station can be obtained. By quantitatively counting the fault status, the differences in energy storage power and capacity margin between each energy storage station can be intuitively obtained, thereby realizing the calculation of the energy storage power and capacity margin of each energy storage station.

[0036] The present invention also provides a clustering control system for regulating capacity of an energy storage station, comprising an initial information acquisition module, a first clustering module, a second clustering module, a judgment module, a calculation and sorting module, and a control module; wherein:

[0037] The initial information acquisition module is used to acquire the measurement information of all energy storage stations participating in the auxiliary service and perform synchronization and alignment processing to obtain initial information; the initial information includes energy storage station status information and output delay and communication delay information;

[0038] The first clustering module is used to perform first clustering based on the energy storage station status information of different energy storage stations, and screen out energy storage stations that do not participate in the fast auxiliary control;

[0039] The second clustering module is used to perform a second clustering of the energy storage stations that have not been screened out based on the output delay and communication delay information of the remaining energy storage stations after screening out, and divide the energy storage stations into a group of energy storage stations participating in fast auxiliary control and a group of energy storage stations to be allocated;

[0040] The judgment module is used to judge the operating status of each energy storage station in the group of energy storage stations participating in the rapid auxiliary control in real time;

[0041] The calculation and sorting module is used to calculate the energy storage power and capacity margin of each energy storage station according to the operating status of the energy storage station, and sort the energy storage stations in the group of energy storage stations participating in the rapid auxiliary control according to the energy storage power and capacity margin;

[0042] The control module is used to control the energy storage stations according to the sorting situation, and select several energy storage stations to participate in the fast auxiliary service according to the sorting result.

[0043] The above solution provides a clustered control system for regulating capacity of energy storage stations. This system implements a clustered control method for regulating capacity of energy storage stations, clustering and controlling energy storage stations according to their regulating capacity. This ensures that the regulating capacity of energy storage stations participating in rapid auxiliary services meets expectations, improves the efficiency of auxiliary services, and effectively enhances the overall performance of the power system. Furthermore, the system has a simple structure, is easy to implement, and has strong adaptability in practical applications.

[0044] Furthermore, the first clustering module includes a response time preset unit, a response time comparison unit, a ten-millisecond control energy storage station group storage unit, a hundred-millisecond control energy storage station group storage unit, a second-level control energy storage station group storage unit, and a screening unit; wherein:

[0045] The energy storage station status information includes the energy storage body response time;

[0046] The response time preset unit is used to preset a ten millisecond control response time, a hundred millisecond control response time, and a second control response time;

[0047] The ten millisecond level control energy storage station group storage unit is used to store the ten millisecond level control energy storage station group;

[0048] The 100-millisecond-level control energy storage station group storage unit is used to store the 100-millisecond-level control energy storage station group;

[0049] The second-level control energy storage station group storage unit is used to store the second-level control energy storage station group;

[0050] The screening unit is used to store energy storage station groups that do not participate in the rapid auxiliary control and screen them out from the rapid auxiliary control;

[0051] The response time comparison unit is used to compare the energy storage body response time of the energy storage station with the preset response time, specifically:

[0052] If the energy storage body response time of the energy storage station is less than the preset ten-millisecond control response time, the energy storage station is saved to the ten-millisecond control energy storage station group storage unit;

[0053] If the energy storage body response time of the energy storage station is greater than the preset ten-millisecond control response time but less than the preset one-hundred-millisecond control response time, the energy storage station is saved to the one-hundred-millisecond control energy storage station group storage unit;

[0054] If the energy storage body response time of the energy storage station is greater than the preset 100-millisecond control response time but less than the preset second-level control response time, the energy storage station is saved to the second-level control energy storage station group storage unit;

[0055] If the energy storage body response time of the energy storage station is greater than the preset second-level control response time, the energy storage station will be saved in the screening unit as an energy storage station group that does not participate in the fast auxiliary control.

[0056] Furthermore, the second clustering module includes an overall response time calculation unit and an adjustment unit; wherein:

[0057] The overall response time calculation unit is used to obtain the delayed response time of each energy storage station based on the output delay and communication delay information of the energy storage stations remaining after screening, and calculate the overall response time of each energy storage station online in combination with the response time of the energy storage body;

[0058] The adjustment unit is used to compare the overall response time of the energy storage stations and adjust the groups of energy storage stations, specifically:

[0059] If the overall response time of the energy storage station is less than the preset ten-millisecond control response time, the energy storage station is adjusted to the ten-millisecond control energy storage station group storage unit;

[0060] If the overall response time of the energy storage station is greater than the preset 10-millisecond control response time but less than the preset 100-millisecond control response time, the energy storage station is adjusted to the 100-millisecond control energy storage station group storage unit;

[0061] If the overall response time of the energy storage station is greater than the preset 100-millisecond control response time but less than the preset second-level control response time, the energy storage station will be retained in the second-level control energy storage station group storage unit;

[0062] If the overall response time of the energy storage station is greater than the preset second-level control response time, the energy storage station is adjusted to the screening unit as a group of energy storage stations to be allocated.

[0063] Furthermore, the calculation and sorting module calculates the energy storage power and capacity margin of each energy storage station based on the operating status of the energy storage station, and sorts the energy storage stations in the group participating in the rapid auxiliary control energy storage station according to the energy storage power and capacity margin. Finally, the control module controls each energy storage station according to the sorting results, and selects several energy storage stations to participate in the rapid auxiliary service based on the sorting results. Specifically:

[0064] For the energy storage stations in the 10-millisecond control energy storage station group, select the energy storage station according to the sorting results to participate in the 10-millisecond control service;

[0065] For the energy storage stations in the 100-millisecond control energy storage station group, select the energy storage station according to the sorting results to participate in the 100-millisecond control service;

[0066] For the energy storage stations in the second-level control energy storage station group, the energy storage stations are selected according to the sorting results to participate in the second-level control service.

[0067] Furthermore, the operating status of the energy storage station determined by the determination module includes a normal state and a fault state. If the energy storage station has more fault states, its energy storage power and capacity margin will be smaller.

[0068] Compared with the prior art, the present invention has the following beneficial effects:

[0069] The present invention proposes a clustering control method for the regulation capacity of energy storage stations. Two clustering processes are performed on the energy storage stations, fully considering the impact of the energy storage station status information, output delay and communication delay information of the energy storage stations on the rapid auxiliary service of the power system, and distinguishing the energy storage stations that meet the requirements of rapid auxiliary control; at the same time, for the energy storage stations that meet the requirements of rapid auxiliary control, their operating status is collected in real time, and the energy storage power and capacity margin of each energy storage station are calculated, thereby ensuring the timeliness of data updates; finally, the energy storage stations are sorted according to their energy storage power and capacity margin, that is, their regulation capacity, and energy storage stations with large energy storage power and high capacity margin are preferentially controlled to participate in the rapid auxiliary service, thereby ensuring that the regulation capacity of the energy storage stations participating in the rapid auxiliary service is consistent with expectations, improving the efficiency of the auxiliary service, and effectively improving the overall performance of the power system.

[0070] This invention also proposes a clustered control system for regulating capacity of energy storage stations. This system implements a clustered control method for regulating capacity of energy storage stations, clustering and controlling energy storage stations according to their regulating capacity. This ensures that the regulating capacity of energy storage stations participating in rapid auxiliary services meets expectations, improves the efficiency of auxiliary services, and effectively enhances the overall performance of the power system. Furthermore, the system has a simple structure, is easy to implement, and has strong adaptability in practical applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0071] Figure 1 Schematic diagram of the flow of a clustering control method for regulating capacity of an energy storage station according to one embodiment of the present invention;

[0072] Figure 2 Schematic diagram of module connections of the energy storage station regulation capacity clustering control system according to one embodiment of the present invention;

[0073] Figure 3 This is a schematic diagram of system connections in a practical application scenario in one embodiment of the present invention. DETAILED DESCRIPTION

[0074] The accompanying drawings are for illustrative purposes only and should not be understood as limiting this patent; this embodiment is a complete usage example with rich content.

[0075] In order to better illustrate this embodiment, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product size;

[0076] It is understandable to those skilled in the art that some well-known structures and descriptions thereof may be omitted in the drawings.

[0077] The technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0078] Example 1

[0079] like Figure 1 As shown, this embodiment provides a clustering control method for regulating capacity of an energy storage station, comprising the following steps:

[0080] S1: Acquire measurement information from all energy storage stations participating in the auxiliary service and perform synchronization and alignment processing to obtain initial information; the initial information includes energy storage station status information and output delay and communication delay information;

[0081] S2: Perform the first clustering based on the energy storage station status information of different energy storage stations, and screen out the energy storage stations that do not participate in the fast auxiliary control;

[0082] S3: Perform a second clustering of the remaining energy storage stations based on their output delay and communication delay information, dividing the energy storage stations into a group of energy storage stations participating in rapid auxiliary control and a group of energy storage stations to be assigned;

[0083] S4: Determine the operating status of each energy storage station in the group participating in the rapid auxiliary control energy storage station in real time, calculate the energy storage power and capacity margin of each energy storage station, sort the energy storage stations in the group participating in the rapid auxiliary control energy storage station according to the energy storage power and capacity margin, and select several energy storage stations to participate in the rapid auxiliary service based on the sorting results.

[0084] During the specific implementation process, the present invention performs two clustering processes on the energy storage stations, fully considering the impact of the energy storage station status information, output delay and communication delay information of the energy storage stations on the rapid auxiliary service of the power system, and distinguishes the energy storage stations that meet the requirements of rapid auxiliary control; at the same time, for the energy storage stations that meet the requirements of rapid auxiliary control, by collecting their operating status in real time, the energy storage power and capacity margin of each energy storage station are calculated, thereby ensuring the timeliness of data updates; finally, the energy storage stations are sorted according to their energy storage power and capacity margin, that is, their regulation capacity, and energy storage stations with large energy storage power and high capacity margin are preferentially controlled to participate in the rapid auxiliary service, ensuring that the regulation capacity of the energy storage stations participating in the rapid auxiliary service is consistent with expectations, improving the efficiency of the auxiliary service, and effectively improving the overall performance of the power system.

[0085] More specifically, the energy storage station status information includes the energy storage body response time; the process of performing the first clustering based on the energy storage station status information of different energy storage stations and screening out energy storage station groups that do not participate in the fast auxiliary control is specifically as follows:

[0086] If the energy storage station's energy storage body response time is less than the preset 10-millisecond control response time, the energy storage station is classified into the 10-millisecond control energy storage station group;

[0087] If the energy storage body response time of the energy storage station is greater than the preset 10-millisecond control response time but less than the preset 100-millisecond control response time, the energy storage station is classified into the 100-millisecond control energy storage station group;

[0088] If the energy storage body response time of the energy storage station is greater than the preset 100-millisecond control response time but less than the preset second-level control response time, the energy storage station is classified into the second-level control energy storage station group;

[0089] If the energy storage body response time of the energy storage station is greater than the preset second-level control response time, the energy storage station is divided into an energy storage station group that does not participate in the fast auxiliary control and is screened out from the fast auxiliary control.

[0090] In the specific implementation process, the first clustering of the energy storage station is a classification process for the energy storage station based on the response of the energy storage station itself. The only factor that this clustering process depends on is the response time of the energy storage station itself, and it can be easily implemented. Moreover, after the first clustering is divided into the 100-millisecond-level control energy storage station group and other influencing factors are added, it is impossible to update it to the 10-millisecond-level control energy storage station group. That is, the energy storage station with a low-level clustering result in the first clustering cannot be classified into a high-level in the subsequent clustering process. Therefore, the first clustering process is essentially a pre-classification process for the subsequent process, which can effectively reduce the data calculation and scheduling amount of the subsequent clustering process, and improve the clustering control efficiency of the present invention.

[0091] More specifically, the process of performing a second clustering of the energy storage stations participating in the fast auxiliary control based on the output delay and communication delay information of the remaining energy storage stations after screening, and dividing the energy storage stations into a group of energy storage stations participating in the fast auxiliary control and a group of energy storage stations to be allocated is as follows:

[0092] The delayed response time of each energy storage station is obtained based on the output delay and communication delay information of the remaining energy storage stations after screening. The overall response time of each energy storage station is calculated online in combination with the response time of the energy storage itself.

[0093] If the overall response time of the energy storage station is less than the preset 10-millisecond control response time, the energy storage station will be retained in the 10-millisecond control energy storage station group;

[0094] If the overall response time of the energy storage station is greater than the preset 10-millisecond control response time but less than the preset 100-millisecond control response time, the energy storage station will be retained in the 100-millisecond control energy storage station group;

[0095] If the overall response time of the energy storage station is greater than the preset 100-millisecond control response time but less than the preset second-level control response time, the energy storage station will be retained in the second-level control energy storage station group;

[0096] If the overall response time of the energy storage station is greater than the preset second-level control response time, the energy storage station will be retained in the energy storage station group to be allocated;

[0097] The ten-millisecond control energy storage station group, the one-hundred-millisecond control energy storage station group and the second-level control energy storage station group are regarded as participating in the rapid auxiliary control energy storage station group.

[0098] During the specific implementation process, the second clustering of energy storage stations fully considered the output delay and communication delay of the energy storage stations, which can ensure that the clustering results of the energy storage stations are more in line with the actual situation and further ensure that the regulation capabilities of the energy storage stations participating in the rapid auxiliary service are consistent with expectations.

[0099] More specifically, the process of determining the operating status of each energy storage station in the group of energy storage stations participating in the rapid auxiliary control in real time, calculating the energy storage power and capacity margin of each energy storage station, sorting the energy storage stations in the group of energy storage stations participating in the rapid auxiliary control according to the energy storage power and capacity margin, and selecting a number of energy storage stations to participate in the rapid auxiliary service based on the sorting results is as follows:

[0100] For the energy storage stations in the 10-millisecond control energy storage station group, the system collects the changes in the energy storage power and capacity margin of each energy storage station and its operating status in real time. Based on the operating status of each energy storage station, the energy storage power and capacity margin of each energy storage station are calculated. The energy storage stations are then sorted according to their energy storage power and capacity margin, and the energy storage stations are selected according to the sorting results to participate in the 10-millisecond control service.

[0101] For the energy storage stations in the 100-millisecond control energy storage station group, the system collects the changes in the energy storage power and capacity margin of each energy storage station and its operating status in real time. Based on the operating status of each energy storage station, the system calculates the energy storage power and capacity margin of each energy storage station, sorts the energy storage stations by energy storage power and capacity margin, and selects the energy storage stations to participate in the 100-millisecond control service based on the sorting results.

[0102] For the energy storage stations in the second-level control energy storage station group, the changes in the energy storage power and capacity margin of each energy storage station and the operating status of the energy storage station are collected in real time. According to the operating status of the energy storage station, the energy storage power and capacity margin of each energy storage station are calculated, and the energy storage stations are sorted according to the energy storage power and capacity margin. According to the sorting results, the energy storage stations are selected to participate in the second-level control service.

[0103] During implementation, participating rapid auxiliary control energy storage stations are divided into three levels. In practical applications, the number of levels can be adjusted based on actual needs to improve clustering accuracy. During control, the optimal energy storage station is selected from the corresponding level based on the power system's rapid auxiliary service requirements. This not only improves the efficiency of system dispatch and control, but also makes the dispatch and control results of the energy storage stations more consistent with actual conditions, ensuring a better match between the regulation capabilities of the energy storage stations participating in rapid auxiliary services and actual needs. This improves the efficiency of auxiliary services and effectively enhances the overall performance of the power system.

[0104] More specifically, the operating state of the energy storage station includes a normal state and a fault state. If the energy storage station has more fault states, its energy storage power and capacity margin will be smaller.

[0105] During the specific implementation process, since the operating status of the energy storage station is collected in real time, the real-time status of the energy storage station can be obtained. By quantitatively counting the fault status, the differences in energy storage power and capacity margin between each energy storage station can be intuitively obtained, thereby realizing the calculation of the energy storage power and capacity margin of each energy storage station.

[0106] Example 2

[0107] More specifically, Figure 2 As shown, this embodiment provides a clustering control system for regulating capacity of an energy storage station, including an initial information acquisition module, a first clustering module, a second clustering module, a judgment module, a calculation and sorting module, and a control module; wherein:

[0108] The initial information acquisition module is used to acquire the measurement information of all energy storage stations participating in the auxiliary service and perform synchronization and alignment processing to obtain initial information; the initial information includes energy storage station status information and output delay and communication delay information;

[0109] The first clustering module is used to perform first clustering based on the energy storage station status information of different energy storage stations, and screen out energy storage stations that do not participate in the fast auxiliary control;

[0110] The second clustering module is used to perform a second clustering of the energy storage stations that have not been screened out based on the output delay and communication delay information of the remaining energy storage stations after screening out, and divide the energy storage stations into a group of energy storage stations participating in fast auxiliary control and a group of energy storage stations to be allocated;

[0111] The judgment module is used to judge the operating status of each energy storage station in the group of energy storage stations participating in the rapid auxiliary control in real time;

[0112] The calculation and sorting module is used to calculate the energy storage power and capacity margin of each energy storage station according to the operating status of the energy storage station, and sort the energy storage stations in the group of energy storage stations participating in the rapid auxiliary control according to the energy storage power and capacity margin;

[0113] The control module is used to control the energy storage stations according to the sorting situation, and select several energy storage stations to participate in the fast auxiliary service according to the sorting result.

[0114] During implementation, this system can implement a clustered control method for the regulation capacity of energy storage stations. This clustering and control of energy storage stations based on their regulation capacity ensures that the regulation capacity of energy storage stations participating in rapid ancillary services meets expectations, improving ancillary service efficiency and effectively enhancing the overall performance of the power system. Furthermore, the system boasts a simple structure, easy implementation, and strong adaptability in practical applications.

[0115] More specifically, the first clustering module includes a response time preset unit, a response time comparison unit, a ten-millisecond control energy storage station group storage unit, a hundred-millisecond control energy storage station group storage unit, a second-level control energy storage station group storage unit, and a screening unit; wherein:

[0116] The energy storage station status information includes the energy storage body response time;

[0117] The response time preset unit is used to preset a ten millisecond control response time, a hundred millisecond control response time, and a second control response time;

[0118] The ten millisecond level control energy storage station group storage unit is used to store the ten millisecond level control energy storage station group;

[0119] The 100-millisecond-level control energy storage station group storage unit is used to store the 100-millisecond-level control energy storage station group;

[0120] The second-level control energy storage station group storage unit is used to store the second-level control energy storage station group;

[0121] The screening unit is used to store energy storage station groups that do not participate in the rapid auxiliary control and screen them out from the rapid auxiliary control;

[0122] The response time comparison unit is used to compare the energy storage body response time of the energy storage station with the preset response time, specifically:

[0123] If the energy storage body response time of the energy storage station is less than the preset ten-millisecond control response time, the energy storage station is saved to the ten-millisecond control energy storage station group storage unit;

[0124] If the energy storage body response time of the energy storage station is greater than the preset ten-millisecond control response time but less than the preset one-hundred-millisecond control response time, the energy storage station is saved to the one-hundred-millisecond control energy storage station group storage unit;

[0125] If the energy storage body response time of the energy storage station is greater than the preset 100-millisecond control response time but less than the preset second-level control response time, the energy storage station is saved to the second-level control energy storage station group storage unit;

[0126] If the energy storage body response time of the energy storage station is greater than the preset second-level control response time, the energy storage station will be saved in the screening unit as an energy storage station group that does not participate in the fast auxiliary control.

[0127] More specifically, the second clustering module includes an overall response time calculation unit and an adjustment unit; wherein:

[0128] The overall response time calculation unit is used to obtain the delayed response time of each energy storage station based on the output delay and communication delay information of the energy storage stations remaining after screening, and calculate the overall response time of each energy storage station online in combination with the response time of the energy storage body;

[0129] The adjustment unit is used to compare the overall response time of the energy storage stations and adjust the groups of energy storage stations, specifically:

[0130] If the overall response time of the energy storage station is less than the preset ten-millisecond control response time, the energy storage station is adjusted to the ten-millisecond control energy storage station group storage unit;

[0131] If the overall response time of the energy storage station is greater than the preset 10-millisecond control response time but less than the preset 100-millisecond control response time, the energy storage station is adjusted to the 100-millisecond control energy storage station group storage unit;

[0132] If the overall response time of the energy storage station is greater than the preset 100-millisecond control response time but less than the preset second-level control response time, the energy storage station will be retained in the second-level control energy storage station group storage unit;

[0133] If the overall response time of the energy storage station is greater than the preset second-level control response time, the energy storage station is adjusted to the screening unit as a group of energy storage stations to be allocated.

[0134] More specifically, the calculation and sorting module calculates the energy storage power and capacity margin of each energy storage station based on its operating status, and sorts the energy storage stations in the group participating in the rapid auxiliary control based on their energy storage power and capacity margin. Finally, the control module controls each energy storage station based on the sorting results, and selects several energy storage stations to participate in the rapid auxiliary service based on the sorting results. Specifically,

[0135] For the energy storage stations in the 10-millisecond control energy storage station group, select the energy storage station according to the sorting results to participate in the 10-millisecond control service;

[0136] For the energy storage stations in the 100-millisecond control energy storage station group, select the energy storage station according to the sorting results to participate in the 100-millisecond control service;

[0137] For the energy storage stations in the second-level control energy storage station group, the energy storage stations are selected according to the sorting results to participate in the second-level control service.

[0138] More specifically, the operating status of the energy storage station determined by the judgment module includes a normal state and a fault state. If the energy storage station has more fault states, its energy storage power and capacity margin will be smaller.

[0139] This embodiment proposes a clustered control system for regulating capacity of energy storage stations. This system implements a clustered control method for regulating capacity of energy storage stations, clustering and controlling energy storage stations according to their regulating capacity. This ensures that the regulating capacity of energy storage stations participating in rapid auxiliary services meets expectations, improves the efficiency of auxiliary services, and effectively enhances the overall performance of the power system. Furthermore, the system has a simple structure, is easy to implement, and has strong adaptability in practical applications.

[0140] Example 3

[0141] In order to better illustrate the present solution, the present embodiment describes the present solution in combination with a system of actual application. The specific equipment and parameters used are only one implementation method of the present solution and are not limitations of the implementation methods of the present invention.

[0142] In actual application, Figure 3 As shown in Figure 1, the energy storage centralized collaborative control platform collects the measurement information of all energy storage stations participating in the auxiliary service. In order to facilitate subsequent distinction, the energy storage stations are marked as C1, C2, ..., C n , where n is the number of energy storage stations. In this embodiment, the value of n is 10. The collected measurement data of all energy storage stations participating in the auxiliary service are synchronized and aligned using the power management unit (PUM), and the first clustering is performed based on the initial information sent by different energy storage stations. The clustering process is as follows:

[0143] The times T1, T2, and T3 are set according to the energy storage station response time required for participating in ten-millisecond-level control, one-hundred-millisecond-level control, and one-second-level control. The standard for setting the time is obtained according to the type of energy storage element. For example, the response time of supercapacitors and lithium batteries is in the millisecond level, and that of liquid batteries is in the second level. In actual application, the time can be set according to the actual type of energy storage element.

[0144] Then make a judgment, if the energy storage stations C1~C 10 If the response time of energy storage C1 to C5 is less than T1, they will be divided into the ten millisecond control energy storage station group; if energy storage stations C1 to C 10If the energy storage body response time of C6 and C7 is greater than T1 and less than T2, they will be divided into the 100-millisecond control energy storage station group; if the energy storage stations C1~C 10 If the energy storage body response time of C8 and C9 is greater than T2 and less than T3, they will be divided into the second-level control energy storage station group; if the energy storage station C 10 If the energy storage body response time is greater than T3, it is divided into an energy storage station group that does not participate in the fast auxiliary control and is screened out from the fast auxiliary control, that is, the energy storage station group does not participate in the fast auxiliary control.

[0145] In the specific implementation process, the first clustering is only a classification process for the energy storage station based on the response of the energy storage station itself. The only factor that this clustering process depends on is the response time of the energy storage station itself, which can be easily implemented. Moreover, after the first clustering is divided into the 100-millisecond-level control energy storage station group and other influencing factors are added, it is impossible to update it to the 10-millisecond-level control energy storage station group. That is, the energy storage station with a low-level clustering result in the first clustering cannot be classified into a high-level in the subsequent clustering process. Therefore, the first clustering process is essentially a pre-classification process for the subsequent process, which can effectively reduce the data calculation and scheduling amount of the subsequent clustering process, and improve the clustering control efficiency of the present invention.

[0146] Next, a second clustering is performed based on the congestion of the communication network and the output delay of the synchronous data concentrator within the energy storage station. By real-time collection of the output delay of the synchronous data concentrator of the energy storage station, the communication delay, and the response time of the energy storage body, the overall response time of all energy storage stations is calculated online. If the overall response time of energy storage stations C1 to C3 is less than T1, it will be retained in the ten-millisecond control energy storage station group; if the overall response time of energy storage station C4 is greater than T1 and less than T2, it will be retained in the hundred-millisecond control energy storage station group; if the overall response time of energy storage station C5 is greater than T2 and less than T3, it will be retained in the second-level control energy storage station group. Similarly, if the energy storage station group originally in the hundred-millisecond control is determined to meet the overall response time requirements, it will be retained in the hundred-millisecond control energy storage station group. If it does not meet the requirements, it will be retained in the second-level control energy storage station group or moved to an energy storage station group that does not participate in fast auxiliary control and will not participate in fast auxiliary control.

[0147] During the specific implementation process, the second clustering of energy storage stations fully considered the output delay and communication delay of the energy storage stations, which can ensure that the clustering results of the energy storage stations are more in line with the actual situation and further ensure that the regulation capabilities of the energy storage stations participating in the rapid auxiliary service are consistent with expectations.

[0148] Next, for the energy storage stations in the 10-millisecond control energy storage station group, the changes in the energy storage power and capacity margin of each energy storage station and the operating status of the energy storage station are collected in real time. Based on the operating status of the energy storage station, the energy storage power and capacity margin of each energy storage station are calculated. The energy storage stations are ranked according to the energy storage power and capacity margin. For example, if the ranking result is C1, C2, and C3, the energy storage stations with large energy storage power and high capacity margin will participate in the 10-millisecond control with priority C1, C2, and C3.

[0149] For the energy storage stations in the 100-millisecond control energy storage station group, the changes in the energy storage power and capacity margin of each energy storage station and the operating status of the energy storage station are collected in real time. According to the operating status of the energy storage station, the energy storage power and capacity margin of each energy storage station are calculated, and the energy storage stations are sorted according to the energy storage power and capacity margin. For example, if the sorting result is C4, C6, and C7, the energy storage stations with large energy storage power and high capacity margin will have the priority of C4, C6, and C7 in participating in the 100-millisecond control. It should be noted that when the power system has a demand for 10-millisecond control, the priority of 100-millisecond control is C4, C6, and C7; when the power system has no demand for 10-millisecond control, the priority of 100-millisecond control is C1, C2, C3, C4, C6, and C7. That is, in actual application, the power system demand is given priority. When the energy storage station is completely idle, its priority is the energy storage station in the 10-millisecond control energy storage station group, the energy storage station in the 100-millisecond control energy storage station group, and the energy storage station in the second-level control energy storage station group.

[0150] For the energy storage stations in the second-level control energy storage station group, similarly, the changes in the energy storage power and capacity margin of each energy storage station and the operating status of the energy storage station are collected in real time. According to the operating status of the energy storage station, the energy storage power and capacity margin of each energy storage station are calculated, and the energy storage stations are sorted according to the energy storage power and capacity margin. For example, the sorting results are C5, C8, and C9. For energy storage stations with large energy storage power and high capacity margin, the priority of participating in the second-level control is C5, C8, and C9.

[0151] In summary, when the energy storage station is completely idle, its priority is C1, C2, C3, C4, C6, C7, C5, C8, and C9.

[0152] In this embodiment, the energy storage centralized collaborative control platform is designed to online differentiate and confirm the actual energy storage units participating in different levels of rapid response. This eliminates the problem of inconsistency between the actual and declared regulation capabilities of energy storage stations due to network congestion and uncertainty in the output delay of the on-site synchronous data concentrator, thereby improving regulation accuracy. Simultaneously, synchronous alignment processing technology is employed to enable energy storage stations that utilize ordinary PMUs but possess rapid energy storage entity response capabilities to participate in ten-millisecond or one-hundred-millisecond rapid collaborative control. This allows online differentiation and confirmation of the actual energy storage units participating in different levels of rapid response. This eliminates the problem of inconsistency between the actual and declared regulation capabilities of energy storage stations due to network congestion and uncertainty in the output delay of the on-site synchronous data concentrator, thereby improving regulation accuracy and control efficiency.

[0153] This embodiment performs two clustering processes on energy storage stations, fully considering the impact of their status information, output delay, and communication delay information on the rapid auxiliary services of the power system, and distinguishing energy storage stations that meet the requirements of rapid auxiliary control. At the same time, for energy storage stations that meet the requirements of rapid auxiliary control, their operating status is collected in real time, and the energy storage power and capacity margin of each energy storage station are calculated, ensuring the timeliness of data updates. Finally, the energy storage stations are sorted according to their energy storage power and capacity margin, that is, their regulation capacity. Energy storage stations with high energy storage power and capacity margin are prioritized to participate in the rapid auxiliary service. This ensures that the regulation capacity of the energy storage stations participating in the rapid auxiliary service is consistent with expectations, improves the efficiency of the auxiliary service, and effectively enhances the overall performance of the power system.

[0154] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention are intended to be included within the scope of protection of the claims of the present invention.

Claims

1. A clustering control method for regulating capacity of energy storage station, characterized in that: The following steps are involved: Obtain measurement information from all energy storage stations participating in ancillary services and synchronize and align them to obtain initial information; The initial information includes energy storage station status information and output delay and communication delay information; Perform the first clustering based on the energy storage station status information of different energy storage stations, and screen out the energy storage stations that do not participate in the fast auxiliary control; The remaining energy storage stations are clustered again based on their output delay and communication delay information, dividing them into a group of energy storage stations participating in rapid auxiliary control and a group of energy storage stations to be allocated. Real-time assessment of the operating status of each energy storage station in the fast auxiliary control group, calculation of the energy storage power and capacity margin of each energy storage station, sorting the energy storage stations in the fast auxiliary control group based on the energy storage power and capacity margin, and selecting a number of energy storage stations to participate in the fast auxiliary service based on the sorting results; The process of performing a second clustering of the energy storage stations participating in the fast auxiliary control based on the output delay and communication delay information of the remaining energy storage stations after screening, and dividing the energy storage stations into a group of energy storage stations participating in the fast auxiliary control and a group of energy storage stations to be allocated is specifically as follows: The delayed response time of each energy storage station is obtained based on the output delay and communication delay information of the remaining energy storage stations after screening. The overall response time of each energy storage station is calculated online in combination with the response time of the energy storage itself. If the overall response time of the energy storage station is less than the preset 10-millisecond control response time, the energy storage station will be retained in the 10-millisecond control energy storage station group; If the overall response time of the energy storage station is greater than the preset 10-millisecond control response time but less than the preset 100-millisecond control response time, the energy storage station will be retained in the 100-millisecond control energy storage station group; If the overall response time of the energy storage station is greater than the preset 100-millisecond control response time but less than the preset second-level control response time, the energy storage station will be retained in the second-level control energy storage station group; If the overall response time of the energy storage station is greater than the preset second-level control response time, the energy storage station will be retained in the energy storage station group to be allocated; The ten-millisecond control energy storage station group, the one-hundred-millisecond control energy storage station group and the second-level control energy storage station group are regarded as participating in the rapid auxiliary control energy storage station group.

2. The cluster control method for regulating capacity of energy storage station according to claim 1, characterized in that: The energy storage station status information includes the energy storage body response time; the process of performing the first clustering based on the energy storage station status information of different energy storage stations and screening out the energy storage station groups that do not participate in the fast auxiliary control is specifically as follows: If the energy storage station's energy storage body response time is less than the preset 10-millisecond control response time, the energy storage station is classified into the 10-millisecond control energy storage station group; If the energy storage body response time of the energy storage station is greater than the preset 10-millisecond control response time but less than the preset 100-millisecond control response time, the energy storage station is classified into the 100-millisecond control energy storage station group; If the energy storage body response time of the energy storage station is greater than the preset 100-millisecond control response time but less than the preset second-level control response time, the energy storage station is classified into the second-level control energy storage station group; If the energy storage body response time of the energy storage station is greater than the preset second-level control response time, the energy storage station is divided into an energy storage station group that does not participate in the fast auxiliary control and is screened out from the fast auxiliary control.

3. The cluster control method for regulating capacity of energy storage station according to claim 1, characterized in that: The process of determining the operating status of each energy storage station in the group of energy storage stations participating in the rapid auxiliary control in real time, calculating the energy storage power and capacity margin of each energy storage station, sorting the energy storage stations in the group of energy storage stations participating in the rapid auxiliary control according to the energy storage power and capacity margin, and selecting a number of energy storage stations to participate in the rapid auxiliary service based on the sorting results is specifically as follows: For the energy storage stations in the 10-millisecond control energy storage station group, the system collects the changes in the energy storage power and capacity margin of each energy storage station and its operating status in real time. Based on the operating status of each energy storage station, the energy storage power and capacity margin of each energy storage station are calculated. The energy storage stations are then sorted according to their energy storage power and capacity margin, and the energy storage stations are selected according to the sorting results to participate in the 10-millisecond control service. For the energy storage stations in the 100-millisecond control energy storage station group, the system collects the changes in the energy storage power and capacity margin of each energy storage station and its operating status in real time. Based on the operating status of each energy storage station, the system calculates the energy storage power and capacity margin of each energy storage station, sorts the energy storage stations by energy storage power and capacity margin, and selects the energy storage stations to participate in the 100-millisecond control service based on the sorting results. For the energy storage stations in the second-level control energy storage station group, the changes in the energy storage power and capacity margin of each energy storage station and the operating status of the energy storage station are collected in real time. According to the operating status of the energy storage station, the energy storage power and capacity margin of each energy storage station are calculated, and the energy storage stations are sorted according to the energy storage power and capacity margin. According to the sorting results, the energy storage stations are selected to participate in the second-level control service.

4. The cluster control method for regulating capacity of energy storage station according to claim 3, characterized in that: The operating status of the energy storage station includes a normal state and a fault state. If the energy storage station has more fault states, its energy storage power and capacity margin will be smaller.

5. A cluster control system for regulating capacity of energy storage station, characterized in that: It includes an initial information acquisition module, a first clustering module, a second clustering module, a judgment module, a calculation and sorting module, and a control module; wherein: The initial information acquisition module is used to acquire the measurement information of all energy storage stations participating in the auxiliary service and perform synchronization and alignment processing to obtain initial information; the initial information includes energy storage station status information and output delay and communication delay information; The first clustering module is used to perform first clustering based on the energy storage station status information of different energy storage stations, and screen out energy storage stations that do not participate in the fast auxiliary control; The second clustering module is used to perform a second clustering of the energy storage stations that have not been screened out based on the output delay and communication delay information of the remaining energy storage stations after screening out, and divide the energy storage stations into a group of energy storage stations participating in fast auxiliary control and a group of energy storage stations to be allocated; The judgment module is used to judge the operating status of each energy storage station in the group of energy storage stations participating in the rapid auxiliary control in real time; The calculation and sorting module is used to calculate the energy storage power and capacity margin of each energy storage station according to the operating status of the energy storage station, and sort the energy storage stations in the group of energy storage stations participating in the rapid auxiliary control according to the energy storage power and capacity margin; The control module is used to control the energy storage stations according to the sorting situation, and select several energy storage stations to participate in the fast auxiliary service according to the sorting result; The second clustering module includes an overall response time calculation unit and an adjustment unit; wherein: The overall response time calculation unit is used to obtain the delayed response time of each energy storage station based on the output delay and communication delay information of the energy storage stations remaining after screening, and calculate the overall response time of each energy storage station online in combination with the response time of the energy storage body; The adjustment unit is used to compare the overall response time of the energy storage stations and adjust the groups of energy storage stations, specifically: If the overall response time of the energy storage station is less than the preset ten-millisecond control response time, the energy storage station is adjusted to the ten-millisecond control energy storage station group storage unit; If the overall response time of the energy storage station is greater than the preset 10-millisecond control response time but less than the preset 100-millisecond control response time, the energy storage station is adjusted to the 100-millisecond control energy storage station group storage unit; If the overall response time of the energy storage station is greater than the preset 100-millisecond control response time but less than the preset second-level control response time, the energy storage station will be retained in the second-level control energy storage station group storage unit; If the overall response time of the energy storage station is greater than the preset second-level control response time, the energy storage station is adjusted to the screening unit as a group of energy storage stations to be allocated.

6. The energy storage station regulation capacity clustering control system according to claim 5, characterized in that: The first clustering module includes a response time preset unit, a response time comparison unit, a ten-millisecond control energy storage station group storage unit, a hundred-millisecond control energy storage station group storage unit, a second-level control energy storage station group storage unit, and a screening unit; wherein: The energy storage station status information includes the energy storage body response time; The response time preset unit is used to preset a ten millisecond control response time, a hundred millisecond control response time, and a second control response time; The ten millisecond level control energy storage station group storage unit is used to store the ten millisecond level control energy storage station group; The 100-millisecond-level control energy storage station group storage unit is used to store the 100-millisecond-level control energy storage station group; The second-level control energy storage station group storage unit is used to store the second-level control energy storage station group; The screening unit is used to store energy storage station groups that do not participate in the rapid auxiliary control and screen them out from the rapid auxiliary control; The response time comparison unit is used to compare the energy storage body response time of the energy storage station with the preset response time, specifically: If the energy storage body response time of the energy storage station is less than the preset ten-millisecond control response time, the energy storage station is saved to the ten-millisecond control energy storage station group storage unit; If the energy storage body response time of the energy storage station is greater than the preset ten-millisecond control response time but less than the preset one-hundred-millisecond control response time, the energy storage station is saved to the one-hundred-millisecond control energy storage station group storage unit; If the energy storage body response time of the energy storage station is greater than the preset 100-millisecond control response time but less than the preset second-level control response time, the energy storage station is saved to the second-level control energy storage station group storage unit; If the energy storage body response time of the energy storage station is greater than the preset second-level control response time, the energy storage station will be saved in the screening unit as an energy storage station group that does not participate in the fast auxiliary control.

7. The energy storage station regulation capacity clustering control system according to claim 5, characterized in that: The calculation and sorting module calculates the energy storage power and capacity margin of each energy storage station based on its operating status, and sorts the energy storage stations in the group participating in the rapid auxiliary control energy storage station according to the energy storage power and capacity margin. Finally, the control module controls each energy storage station based on the sorting results, and selects several energy storage stations to participate in the rapid auxiliary service based on the sorting results. Specifically: For the energy storage stations in the 10-millisecond control energy storage station group, select the energy storage station according to the sorting results to participate in the 10-millisecond control service; For the energy storage stations in the 100-millisecond control energy storage station group, select the energy storage station according to the sorting results to participate in the 100-millisecond control service; For the energy storage stations in the second-level control energy storage station group, the energy storage stations are selected according to the sorting results to participate in the second-level control service.

8. The energy storage station regulation capacity clustering control system according to claim 7, characterized in that: The operating status of the energy storage station determined by the determination module includes a normal state and a fault state. If the energy storage station has more fault states, its energy storage power and capacity margin will be smaller.

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