Cluster-lacking operation management method, system and equipment for energy storage system

Abstract

The invention provides a cluster-lacking operation management method for an energy storage system, and the method comprises the steps: carrying out the fault detection of a plurality of battery clusters, and screening out a fault battery cluster; the fault battery cluster is cut off and isolated; adjusting the operation state of the energy storage system according to the number of the normal battery clusters; merging the repaired fault battery cluster into an energy storage system, and disconnecting high-voltage box relays of all the battery clusters in the energy storage system; the difference value between the charge state of the repaired fault battery cluster and the charge state of the normal battery cluster does not exceed a first preset value; when the voltage difference exists, carrying out voltage regulation processing on the repaired fault battery cluster; the invention discloses a cluster-lacking operation management method for an energy storage system, and the method can conveniently carry out the independent isolation processing of a fault battery cluster, does not affect the operation of a normal battery cluster, avoids the impact on the whole energy storage system when a certain battery cluster breaks down, and improves the reliability of the system. And the problem that re-cluster operation is difficult after the fault battery cluster is recovered is solved.

Description

Technical Field

[0001] The present invention relates to the field of battery cluster management, and in particular to a method, system and device for managing cluster-deficient operation of an energy storage system. Background Art

[0002] The commonly used energy storage system is a high-voltage architecture in which battery cells are connected in series to form groups and modules are connected in series to form clusters. In this type of system, when a cluster in the entire container fails, the entire container energy storage system will be shut down and power will be cut off, which will affect the operation of other battery clusters and cause low utilization of the entire energy storage system. After a battery cluster fails, if the normal cluster can be put into operation, it means that other clusters are still frequently performing charging and discharging operations, resulting in the charge state and voltage state of the faulty battery cluster being inconsistent with other normal clusters, which will make it difficult to re-enter the cluster and put it into operation. Summary of the invention

[0003] The object of the present invention is to provide a method, system and device for managing cluster-deficient operation of an energy storage system, so as to avoid the impact on the entire energy storage system when a battery cluster fails.

[0004] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a method for cluster-deficient operation management of an energy storage system, wherein the energy storage system has multiple battery clusters, comprising: performing fault detection on multiple battery clusters to screen out faulty battery clusters; cutting off and isolating the faulty battery clusters; adjusting the operation state of the energy storage system according to the number of normal battery clusters; when the faulty battery cluster is repaired, incorporating the repaired faulty battery cluster into the energy storage system, and disconnecting the high-voltage box relays of all the battery clusters in the energy storage system; adjusting the charge state of the repaired faulty battery cluster so that the difference between the charge state of the repaired faulty battery cluster and the charge state of the normal battery cluster does not exceed a first preset value; judging whether there is a voltage difference between the repaired faulty battery cluster and the normal battery cluster, and performing voltage regulation on the repaired faulty battery cluster when there is a voltage difference; after the voltage regulation, closing the high-voltage box relays of all the battery clusters in the energy storage system.

[0005] Furthermore, the fault detection of multiple battery clusters to screen out faulty battery clusters includes: detecting voltage information, temperature information and charge status information of each single battery in the battery cluster by a battery single battery management unit, wherein the voltage information, temperature information and charge status information of the single battery are used to be transmitted to the battery cluster management unit; and detecting the voltage information, temperature information and charge status information of the single battery by the battery cluster management unit to screen out faulty battery clusters.

[0006] Furthermore, the cutting off and isolating the faulty battery cluster includes: cutting off a circuit breaker of a high-voltage box of the faulty battery cluster; and disconnecting a relay of the high-voltage box of the faulty battery cluster after a preset first delay time.

[0007] Furthermore, adjusting the operating state of the energy storage system according to the number of normal battery clusters includes: determining whether the faulty battery cluster is in an offline state; when the faulty battery cluster is in an offline state, determining whether the number of normal battery clusters is greater than the minimum allowed number of operating clusters; when the number of normal battery clusters is greater than or equal to the minimum allowed number of operating clusters, confirming the maximum allowed charge and discharge power and maximum charge and discharge current requirement of the energy storage system through a battery array management unit; when the number of normal battery clusters is less than the minimum allowed number of operating clusters, changing the operating state of the energy storage system.

[0008] Furthermore, the changing of the operating state of the energy storage system includes: reducing the maximum allowable charge and discharge power and the maximum charge and discharge current requirement of the energy storage system or disconnecting the power supply of the energy storage system.

[0009] Further, the adjusting the state of charge of the repaired faulty battery cluster so that the difference between the state of charge of the repaired faulty battery cluster and the state of charge of a normal battery cluster does not exceed a first preset value includes: obtaining the difference between the state of charge of the repaired faulty battery cluster and an average value of the state of charge of a normal battery cluster; when the state of charge of the repaired faulty battery cluster is higher than the average value of the state of charge of a normal battery cluster, and the difference is greater than the first preset value, discharging the repaired faulty battery cluster through the energy storage system until the difference is less than the first preset value; when the state of charge of the repaired faulty battery cluster is lower than the average value of the state of charge of a normal battery cluster, and the difference is greater than the first preset value, charging the repaired faulty battery cluster through the energy storage system until the difference is less than the first preset value.

[0010] Furthermore, the voltage adjustment processing for the repaired faulty battery cluster when there is a voltage difference includes: obtaining the difference between the voltage value of the repaired faulty battery cluster and the voltage average value of a normal battery cluster; judging whether the voltage difference value is greater than a preset first threshold; when the voltage difference value is greater than the first threshold, charging or discharging the repaired faulty battery cluster with a preset adjustment current value until the voltage difference value is less than the first threshold.

[0011] Furthermore, after closing the high-voltage box relays of all the battery clusters in the energy storage system, the following steps are also included: confirming the maximum allowable charge and discharge power and maximum charge and discharge current requirement of the energy storage system through a battery array management unit.

[0012] On the other hand, a cluster-deficient operation management system for an energy storage system is provided, which includes a fault detection module for performing fault detection on multiple battery clusters and screening out faulty battery clusters; an isolation module for cutting off and isolating the faulty battery cluster; an operation status adjustment module for adjusting the operation status of the energy storage system according to the number of normal battery clusters; a first battery cluster reinstallation module for incorporating the repaired faulty battery cluster into the energy storage system after repair of the faulty battery cluster, and disconnecting the high-voltage box relays of all the battery clusters in the energy storage system; a charge state adjustment module for adjusting the charge state of the repaired faulty battery cluster so that the difference between the charge state of the repaired faulty battery cluster and the charge state of the normal battery cluster does not exceed a first preset value; a voltage difference adjustment module for judging whether there is a voltage difference between the repaired faulty battery cluster and the normal battery cluster, and performing voltage regulation on the repaired faulty battery cluster when there is a voltage difference; and a second battery cluster reinstallation module for closing the high-voltage box relays of all the battery clusters in the energy storage system after the voltage regulation.

[0013] On the other hand, an electronic device is provided, comprising: a processor and a memory for storing executable instructions of the processor; wherein the processor is configured to execute the above management method.

[0014] It can be seen from the analysis that the present invention discloses a method for managing the operation of an energy storage system with missing clusters. The present invention can conveniently isolate and process the faulty battery cluster separately without affecting the operation of the normal battery cluster, thus avoiding the impact on the entire energy storage system when a battery cluster fails, and solving the problem of difficulty in re-entering the cluster for operation after the faulty battery cluster is restored. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. Among them:

[0016] Figure 1 Flowchart of an embodiment of the present invention. DETAILED DESCRIPTION

[0017] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments. Each example is provided by way of explanation of the present invention and does not limit the present invention. In fact, it will be clear to those skilled in the art that modifications and variations may be made in the present invention without departing from the scope or spirit of the present invention. For example, a feature shown or described as a part of one embodiment may be used in another embodiment to produce yet another embodiment. Therefore, it is desired that the present invention encompasses such modifications and variations within the scope of the appended claims and their equivalents.

[0018] In the description of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention. The terms "connected", "connected" and "set" used in the present invention should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be a direct connection or an indirect connection through an intermediate component; it can be a wired electrical connection, a radio connection, or a wireless communication signal connection. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0019] One or more examples of the present invention are shown in the accompanying drawings. The detailed description uses numbers and letter labels to refer to features in the drawings. Like or similar labels in the drawings and description have been used to refer to like or similar parts of the present invention. As used herein, the terms "first", "second", "third", and "fourth", etc. are used interchangeably to distinguish one component from another and are not intended to indicate the location or importance of individual components.

[0020] like Figure 1 As shown, according to an embodiment of the present invention, a method for cluster-deficient operation management of an energy storage system is provided, wherein the energy storage system is composed of a plurality of battery clusters, the energy storage system includes a battery management system, a battery cluster and a high-voltage box, and the battery management system (BMS) is composed of a three-level architecture of BAU (battery array unit), BCU (battery cluster unit) and BMU (battery module unit). The energy storage system includes a plurality of battery clusters, each battery cluster corresponds to a high-voltage box. Each high-voltage box is equipped with a circuit breaker and a relay for controlling the connection of the battery cluster.

[0021] This management method specifically includes the following steps:

[0022] Step S101 , performing fault detection on multiple battery clusters to screen out faulty battery clusters.

[0023] The above-mentioned fault detection of multiple battery clusters to screen out faulty battery clusters includes: detecting voltage information, temperature information and charge state information of each single battery in the battery cluster through a battery single-cell management unit; the voltage information, temperature information and charge state information of the single battery are used for transmission to the battery cluster management unit; and detecting the voltage information, temperature information and charge state information of the single battery through the battery cluster management unit to screen out faulty battery clusters.

[0024] Battery cluster faults include overvoltage, undervoltage, overtemperature, overcurrent and short circuit.

[0025] Specifically, the BMU monitors the status of the battery cells in the battery cluster in real time, including the voltage of each single battery, the temperature of the battery cell, the charge status and other data, and then transmits the collected data to the BCU. At the same time, the BCU itself monitors the total voltage of the battery cluster, the charging and discharging current and other data in real time. The BCU performs abnormal detection on the collected real-time data. If the parameters exceed the set range, it is marked as a potential fault. After the fault is confirmed, subsequent processing operations are performed.

[0026] Step S102: disconnect and isolate the faulty battery cluster.

[0027] The above-mentioned isolation of the faulty battery cluster includes: cutting off the circuit breaker of the high-voltage box of the faulty battery cluster; and disconnecting the relay of the high-voltage box of the faulty battery cluster after a preset first delay time.

[0028] The energy storage system first controls the circuit breaker in the high-voltage box to cut off the circuit, ensuring that the faulty battery cluster is electrically isolated from the energy storage system. The circuit breaker is equipped with a shunt tripping function. When an electrical fault occurs, the BCU controls the circuit breaker to disconnect the circuit. After the circuit breaker is cut off, the energy storage system usually delays 3 seconds to disconnect the relay in the high-voltage box to ensure that the circuit is completely disconnected and avoid shortening the relay life due to load disconnection.

[0029] Step S103: adjusting the operating state of the energy storage system according to the number of normal battery clusters.

[0030] The above-mentioned adjustment of the operating state of the energy storage system according to the number of normal battery clusters includes: determining whether the faulty battery cluster is in an offline state; when the faulty battery cluster is in an offline state, determining whether the number of normal battery clusters is greater than the minimum allowed number of operating clusters; when the number of normal battery clusters is greater than or equal to the minimum allowed number of operating clusters, confirming the maximum allowed charge and discharge power and maximum charge and discharge current requirement of the energy storage system through the battery array management unit; when the number of normal battery clusters is less than the minimum allowed number of operating clusters, changing the operating state of the energy storage system.

[0031] Specifically, the status of the battery cluster is confirmed and adjusted: BAU determines whether the faulty battery cluster is offline through the handle status feedback of the circuit breaker. If the circuit breaker feedback signal shows that the battery cluster is offline, BAU will update the system status. According to the number of current online battery clusters, BAU recalculates the system's maximum allowable charge and discharge power and maximum charge and discharge current requirements. If the number of current online battery clusters is less than the minimum allowable number of operating clusters, the system will take corresponding measures to change the operating status of the energy storage system.

[0032] The above-mentioned change in the operating state of the energy storage system includes: reducing the maximum allowable charge and discharge power and the maximum charge and discharge current requirement of the energy storage system or disconnecting the power supply of the energy storage system.

[0033] Specifically, there are two ways to change the operating status of the energy storage system: reducing power: the charging and discharging power requested by the entire energy storage system to the PCS (Power Conversion System) will be reduced accordingly to adapt to the discharge or energy storage capacity of the remaining battery clusters; tripping protection: the system directly powers off and trips, disconnecting the power supply of the entire energy storage system, disconnecting the circuit breakers and relays of all high-voltage boxes, and reducing the high voltage of the entire energy storage system, so that the charging and discharging power requested from the PCS becomes zero, ensuring the safety of the system.

[0034] Step S104, when the faulty battery cluster is repaired, the repaired faulty battery cluster is integrated into the energy storage system, and the high-voltage box relays of all battery clusters in the energy storage system are disconnected.

[0035] The above-mentioned faulty cluster battery is usually repaired and inspected by operation and maintenance personnel to ensure that the repaired battery cluster can meet working requirements.

[0036] Specifically, the high-voltage box circuit breaker of the battery cluster after the fault is repaired is manually closed, and the recovery program of the energy storage system is triggered. The BAU uploads the stop charging and discharging instruction, the BAU starts the initialization check, and the BCU controls the high-voltage box relays of all battery clusters to disconnect, ensuring that all battery clusters enter the SOC (state of charge) adjustment state.

[0037] Step S105 , adjusting the state of charge of the repaired faulty battery cluster so that the difference between the state of charge of the repaired faulty battery cluster and the state of charge of the normal battery cluster does not exceed a first preset value.

[0038] The above-mentioned adjustment of the charge state of the repaired faulty battery cluster so that the difference between the charge state of the repaired faulty battery cluster and the charge state of the normal battery cluster does not exceed the first preset value includes: obtaining the difference between the charge state of the repaired faulty battery cluster and the average value of the charge state of the normal battery cluster; when the charge state of the repaired faulty battery cluster is higher than the average value of the charge state of the normal battery cluster, and the difference is greater than the first preset value, discharging the repaired faulty battery cluster through the energy storage system until the difference is less than the first preset value; when the charge state of the repaired faulty battery cluster is lower than the average value of the charge state of the normal battery cluster and the difference is greater than the first preset value, charging the repaired faulty battery cluster through the energy storage system until the difference is less than the first preset value.

[0039] Specifically, BAU first determines the charge state of all battery clusters. BAU collects current charge state data from all battery clusters, compares the SOC of the repaired faulty battery cluster with the average value of other normal battery clusters to determine whether there is a difference in charge state. After the inspection is completed, the high-voltage box relay of the faulty battery cluster is automatically closed, and the energy storage system performs separate charging and discharging operations on the faulty battery cluster to adjust its SOC to ensure that its charge state is consistent with that of the normal battery cluster. The charging and discharging operations include: Charging operation: charging the energy storage system to increase the SOC of the faulty battery cluster to a level consistent with that of the normal battery cluster; Discharging operation: if the SOC of the faulty battery cluster is too high, the SOC is reduced by discharging the energy storage system.

[0040] Before judging the voltage difference between clusters: the system stops charging and discharging, and waits for a while until the voltage of the faulty battery cluster stabilizes. The BAU then further compares the total pressure of all battery clusters to confirm whether there is a voltage difference between the faulty battery cluster and the normal battery cluster;

[0041] Step S106, determining whether there is a voltage difference between the repaired faulty battery cluster and the normal battery cluster, and performing voltage regulation on the repaired faulty battery cluster if there is a voltage difference.

[0042] The above-mentioned voltage adjustment processing for the repaired faulty battery cluster when there is a voltage difference includes: obtaining the difference between the voltage value of the repaired faulty battery cluster and the voltage average value of the normal battery cluster; judging whether the voltage difference value is greater than a preset first threshold value; when the voltage difference value is greater than the first threshold value, charging or discharging the repaired faulty battery cluster with a preset adjustment current value until the voltage difference value is less than the first threshold value.

[0043] Step S107, after the voltage regulation process, the high-voltage box relays of all battery clusters in the energy storage system are closed, and then the maximum allowable charge and discharge power and maximum charge and discharge current requirements of the energy storage system are confirmed through the battery array management unit.

[0044] Specifically, the BAU first determines the voltage difference. When the voltage difference between battery clusters is small (less than the first threshold), the system determines that the integration operation is successful, the energy storage system will be powered on normally, and the BCU controls the relay of the high-voltage box of each normal battery cluster to close. The BAU recalculates the maximum allowable charge and discharge power and the maximum charge and discharge current requirements according to the number of online battery clusters to restore the normal operation of the entire system. When the voltage difference is large, the BAU will issue an instruction to adjust the voltage and continue to control the small-current charging or discharging operation of the faulty cluster. The voltage is adjusted to a level close to that of other normal battery clusters through a small current. During the adjustment, the BCU monitors its voltage changes in real time. The BAU compares the voltage difference value with the normal battery cluster. When the voltage is close to the normal range, the BAU prepares to reintegrate the faulty battery cluster into the energy storage system, the BCU restores the relay closure in the high-voltage box, and the BAU updates the maximum allowable charge and discharge power and the maximum charge and discharge current parameters.

[0045] The present invention also discloses a cluster-deficient operation management system for an energy storage system, comprising a fault detection module for performing fault detection on a plurality of battery clusters and screening out a faulty battery cluster; an isolation module for cutting off and isolating the faulty battery cluster; an operation state adjustment module for adjusting the operation state of the energy storage system according to the number of normal battery clusters; a first battery cluster reinstallation module for incorporating the repaired faulty battery cluster into the energy storage system after repair of the faulty battery cluster, and disconnecting the high-voltage box relays of all the battery clusters in the energy storage system; a charge state adjustment module for adjusting the charge state of the repaired faulty battery cluster so that the difference between the charge state of the repaired faulty battery cluster and the charge state of the normal battery cluster does not exceed a first preset value; a voltage difference adjustment module for judging whether there is a voltage difference between the repaired faulty battery cluster and the normal battery cluster, and performing voltage regulation on the repaired faulty battery cluster when there is a voltage difference; and a second battery cluster reinstallation module for closing the high-voltage box relays of all the battery clusters in the energy storage system after the voltage regulation.

[0046] The present invention also discloses an electronic device, which includes: a processor and a memory for storing executable instructions of the processor; wherein the processor is configured to execute the above management method.

[0047] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects: In summary, the method detects the faulty battery cluster and makes it offline, reduces the charging and discharging power requested by the system to ensure the correct charging and discharging power of the energy storage system; when the number of online battery clusters is too small to meet normal operation, the entire energy storage system can be directly shut down. This strategy effectively solves the problem that when a battery cluster in the entire container fails, the entire container will be shut down, affecting the operation of other battery clusters, ensuring the operation efficiency of the container, reducing the workload of the operation and maintenance personnel, and the delayed disconnection function can reduce the device impact caused by the instantaneous power failure, and improve the stability and reliability of the system. In addition, after the faulty cluster battery is repaired by the operation and maintenance personnel, the charge state of the faulty battery cluster is compared and adjusted with that of other normal battery clusters, so that the charge of the faulty battery cluster is consistent with that of the normal battery cluster, so that the faulty cluster battery can be smoothly reintegrated into the entire system. This strategy solves the problem of difficulty in re-entering the cluster due to the inconsistency of the charge state of the battery cluster with that of other normal battery clusters after the battery cluster fails.

[0048] The present invention can conveniently isolate and process faulty battery clusters separately without affecting the operation of normal battery clusters, thus avoiding the impact on the entire energy storage system when a certain battery cluster fails, and solving the problem of difficulty in re-entering the faulty battery cluster into operation after recovery.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for managing cluster-deficient operation of an energy storage system, wherein the energy storage system has multiple battery clusters, characterized in that: include: Performing fault detection on the plurality of battery clusters to screen out faulty battery clusters; Cutting off and isolating the faulty battery cluster; Adjust the operating status of the energy storage system according to the number of normal battery clusters; When the faulty battery cluster is repaired, the repaired faulty battery cluster is incorporated into the energy storage system, and the high-voltage box relays of all the battery clusters in the energy storage system are disconnected; Adjusting the state of charge of the repaired faulty battery cluster so that the difference between the state of charge of the repaired faulty battery cluster and the state of charge of a normal battery cluster does not exceed a first preset value; Determine whether there is a voltage difference between the repaired faulty battery cluster and a normal battery cluster, and if there is a voltage difference, perform voltage regulation on the repaired faulty battery cluster; After the voltage regulation process, the high-voltage box relays of all the battery clusters in the energy storage system are closed.

2. The method for managing cluster-less operation of an energy storage system according to claim 1, characterized in that: The performing fault detection on the plurality of battery clusters and screening out the faulty battery clusters comprises: The battery cell management unit detects the voltage information, temperature information and charge state information of each single cell in the battery cluster, and the voltage information, temperature information and charge state information of the single cell are used to be transmitted to the battery cluster management unit; The battery cluster management unit detects the voltage information, temperature information and charge state information of the single battery to screen out the faulty battery cluster.

3. The method for managing cluster-less operation of an energy storage system according to claim 1, characterized in that: The cutting off and isolating the faulty battery cluster comprises: Cutting off the circuit breaker of the high-voltage box of the faulty battery cluster; After a preset first delay time, the relay of the high-voltage box of the faulty battery cluster is disconnected.

4. The method for managing cluster-less operation of an energy storage system according to claim 3, characterized in that: The adjusting the operating state of the energy storage system according to the number of normal battery clusters includes: Determining whether the faulty battery cluster is in an offline state; When the faulty battery cluster is in an offline state, determining whether the number of normal battery clusters is greater than a minimum allowed number of operating clusters; When the number of normal battery clusters is greater than or equal to the minimum allowed number of operating clusters, the maximum allowed charge and discharge power and maximum charge and discharge current requirements of the energy storage system are confirmed through the battery array management unit; when the number of normal battery clusters is less than the minimum allowed number of operating clusters, the operating state of the energy storage system is changed.

5. The method for managing cluster-less operation of an energy storage system according to claim 4, characterized in that: The changing of the operating state of the energy storage system includes: Reduce the maximum allowable charge and discharge power and the maximum charge and discharge current requirement of the energy storage system or disconnect the power supply of the energy storage system.

6. The method for managing cluster-less operation of an energy storage system according to claim 1, characterized in that: The step of adjusting the state of charge of the repaired faulty battery cluster so that the difference between the state of charge of the repaired faulty battery cluster and the state of charge of a normal battery cluster does not exceed a first preset value comprises: Obtaining a difference between the state of charge of the repaired faulty battery cluster and an average value of the state of charge of a normal battery cluster; When the state of charge of the repaired faulty battery cluster is higher than the average state of charge of the normal battery cluster, and the difference is greater than the first preset value, the repaired faulty battery cluster is discharged through the energy storage system until the difference is less than the first preset value; When the state of charge of the repaired faulty battery cluster is lower than the average state of charge of the normal battery clusters, and the difference is greater than the first preset value, the repaired faulty battery cluster is charged by the energy storage system until the difference is less than the first preset value.

7. The method for managing cluster-less operation of an energy storage system according to claim 1, characterized in that: The voltage regulation process of the repaired faulty battery cluster when there is a voltage difference includes: Obtaining a difference between a voltage value of the repaired faulty battery cluster and an average voltage value of a normal battery cluster; Determining whether the voltage difference value is greater than a preset first threshold; When the voltage difference value is greater than the first threshold, the repaired faulty battery cluster is charged or discharged with a preset adjustment current value until the voltage difference value is less than the first threshold.

8. The method for managing cluster-deficient operation of an energy storage system according to claim 1, characterized in that: After closing the high-voltage box relays of all the battery clusters in the energy storage system, the following steps are also included: The maximum allowable charging and discharging power and maximum charging and discharging current requirements of the energy storage system are confirmed through the battery array management unit.

9. An energy storage system cluster-lack operation management system, characterized in that: A fault detection module performs fault detection on multiple battery clusters and selects faulty battery clusters; An isolation module, for cutting off and isolating the faulty battery cluster; An operation state adjustment module adjusts the operation state of the energy storage system according to the number of normal battery clusters; A first battery cluster reinstallation module, when the faulty battery cluster is repaired, incorporates the repaired faulty battery cluster into the energy storage system, and disconnects the high-voltage box relays of all the battery clusters in the energy storage system; a state of charge adjustment module, which adjusts the state of charge of the repaired faulty battery cluster so that the difference between the state of charge of the repaired faulty battery cluster and the state of charge of a normal battery cluster does not exceed a first preset value; A voltage difference adjustment module is used to determine whether there is a voltage difference between the repaired faulty battery cluster and the normal battery cluster, and to adjust the voltage of the repaired faulty battery cluster when there is a voltage difference; The second battery cluster reinstallation module closes the high-voltage box relays of all the battery clusters in the energy storage system after voltage regulation.

10. An electronic device, characterized in that: The electronic device comprises: a processor and a memory for storing executable instructions of the processor; Wherein, the processor is configured to execute the management method according to any one of claims 1-8.

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