Energy storage system charging and discharging control method and device, electronic equipment and storage medium

Abstract

The application provides a kind of energy storage system charge-discharge control method and device, electronic equipment and storage medium, the method comprises: when the first decision system determines that communication failure occurs with remote EMS, by the second decision system that communication failure does not occur with remote EMS as information relay, communication with remote EMS can be realized, communication can be maintained with remote EMS in the case where communication failure occurs between the first decision system and remote EMS;At the same time, the corresponding target control information is obtained through the second decision system, and the power that should be controlled by the power distribution system corresponding to the first decision system is partially or entirely processed by other decision systems according to the target control information, which can improve the control of remote EMS on the entire energy storage system for peak load shifting.

Description

Technical Field

[0001] This application relates to the field of energy storage technology, and in particular to a charging and discharging control method, device, electronic equipment and storage medium for an energy storage system. Background Technology

[0002] Peak shaving and valley filling refer to the use of energy storage systems by an Energy Management System (EMS) to release electrical energy during peak grid periods to alleviate grid pressure and store electrical energy during off-peak periods to conserve excess power. Currently, peak shaving and valley filling are distributed by a remote EMS to multiple distribution systems within the energy storage system based on the amount of electricity required for peak shaving and valley filling. However, if there is a communication failure between the remote EMS and one of the distribution systems, preventing the transmission of corresponding control commands, then peak shaving and valley filling cannot be performed. Summary of the Invention

[0003] This application provides a charging and discharging control method, device, electronic device, and storage medium for an energy storage system. When a communication failure occurs between the first decision system and the remote EMS, a second decision system that has normal communication with the remote EMS is used as an information relay to achieve normal communication between the first decision system and the remote EMS.

[0004] In a first aspect, this application provides a charging and discharging control method for an energy storage system. This method is applied to a first decision system among multiple decision systems within the energy storage system. The energy storage system also includes a remote energy management system (EMS). The multiple decision systems correspond to multiple power distribution systems. The method includes:

[0005] If no first control instruction is received from the remote EMS in the first time period, an inquiry instruction is sent to the second decision system. The first time period is the time period during which the remote EMS sends the first control instruction to the first decision system. The first control instruction includes the control power of the first decision system in the second time period. The control power includes the charging power or the discharging power. The second time period is the time period during which multiple power distribution systems need to be charged or discharged. The inquiry instruction is used to inquire whether the second decision system has received the second control instruction from the remote EMS. The second control instruction includes the control power of the second decision system in the second time period.

[0006] If a confirmation instruction is received from the second decision system, an acquisition instruction is sent to the second decision system. The acquisition instruction is used to acquire target control information, which includes the total control power of multiple decision systems in the second time period and the control power of the first decision system in the second time period. The confirmation instruction is used to instruct the second decision system to receive the second control instruction from the remote EMS.

[0007] The system receives target control information from the second decision system and determines the first control amount and the second control amount based on the target control information. The control amount of the first decision system in the second time period is the sum of the first control amount and the second control amount. The first control amount is the total control amount of the distribution system corresponding to the first decision system in the second time period of multiple decision systems. The second control amount is the additional control amount of the distribution system corresponding to the other decision systems besides the first decision system in the multiple decision systems that still need to be controlled in the second time period.

[0008] The second control power is sent to the second decision system, so that the second decision system sends the second control power to the remote EMS, so that the remote EMS distributes the second control power to other decision systems, and sends the first control power to the power distribution system corresponding to the first decision system, so that the power distribution system corresponding to the first decision system can perform charging or discharging control in the second time period.

[0009] As can be seen, in this application, when the first decision system determines that a communication failure has occurred with the remote EMS, the second decision system, which has not experienced a communication failure with the remote EMS, acts as an information relay to achieve communication with the remote EMS. This allows the first decision system to maintain communication with the remote EMS even when a communication failure has occurred, enabling the first decision system to obtain the corresponding control information through the second decision system. At the same time, the information exchange through the second decision system also allows the remote EMS to be aware of the failure with the first decision system. Furthermore, by obtaining the corresponding target control information through the second decision system and allocating part or all of the electricity that should have been controlled by the distribution system corresponding to the first decision system to other decision systems for processing, the remote EMS's control over peak shaving and valley filling of the entire energy storage system can be improved.

[0010] In a feasible example, before sending the query instruction to the second decision system, the method further includes: sending a feedback instruction to the remote EMS, the feedback instruction being used to instruct the remote EMS to provide feedback to the first decision system on whether the instruction has been received; and if no feedback is received from the remote EMS, performing the operation of sending the query instruction to the second decision system.

[0011] In this application, the above method helps to improve the accuracy of determining whether there is a communication failure between the first decision system and the remote EMS.

[0012] In a feasible example, determining the first and second controlled power quantities based on target control information includes: obtaining the total controllable capacity of the distribution system corresponding to other decision systems in multiple decision systems through the second decision system, where the total controllable capacity includes the total rechargeable capacity or the total dischargeable capacity; if the ratio between the total controlled power quantity of multiple decision systems in the second time period and the total controllable capacity of the distribution system corresponding to other decision systems is not greater than a first preset ratio, determining the controlled power quantity of the first decision system in the second time period as the second controlled power quantity, and determining the first controlled power quantity as zero, and the first preset ratio being less than one.

[0013] In this application, the above method can improve the control of the remote EMS over the peak shaving and valley filling of the entire energy storage system.

[0014] Furthermore, in a feasible example, the method further includes: if the ratio between the total controlled power of multiple decision systems in the second time period and the total controllable capacity of the distribution system corresponding to other decision systems is greater than a first preset ratio, determining whether the ratio between the controlled power of the first decision system in the second time period and the total controlled power of multiple decision systems in the second time period is greater than a second preset ratio; if it is determined that the ratio between the controlled power of the first decision system in the second time period and the total controlled power of multiple decision systems in the second time period is greater than the second preset ratio, then obtaining a first ratio between the controlled power of each decision system in the other decision systems and the controllable capacity of the distribution system corresponding to that decision system. The adjustable capacity includes rechargeable capacity or dischargeable capacity; the third adjustable quantity is determined based on the first average ratio and the adjustable capacity of the distribution system corresponding to the first decision system, where the first average ratio is the average of the first ratios corresponding to other decision systems; if the third adjustable quantity is not less than the adjustable quantity of the first decision system in the second time period, then the adjustable quantity of the first decision system in the second time period is determined as the first adjustable quantity, and the first adjustable quantity is zero; if the third adjustable quantity is less than the adjustable quantity of the first decision system, then the third adjustable quantity is determined as the first adjustable quantity, and the difference between the adjustable quantity of the first decision system in the second time period and the third adjustable quantity is determined as the second adjustable quantity.

[0015] In this application, the above method can not only improve the control of the remote EMS over the peak shaving and valley filling of the entire energy storage system, but also ensure the control efficiency of the entire energy storage system.

[0016] In addition, in a feasible example, the method further includes: if it is determined that the ratio of the regulation power of the first decision system in the second time period to the total regulation power of multiple decision systems in the second time period is not greater than a second preset ratio, then the second regulation power is determined to be zero, and the regulation power of the first decision system in the second time period is determined to be the first regulation power.

[0017] In this application, this approach ensures the overall efficiency of the energy storage system without affecting the remote EMS's control over peak shaving and valley filling.

[0018] In a feasible example, determining the first and second controlled power quantities based on target control information includes: obtaining the total controllable capacity of multiple distribution systems corresponding to multiple decision systems through a second decision system, where the total controllable capacity includes the total rechargeable capacity or the total dischargeable capacity; determining the fourth controlled power quantity of the first decision system based on a second ratio and the total controlled power quantity of the multiple decision systems in a second time period, where the second ratio is the ratio of the controllable capacity of the distribution system corresponding to the first decision system to the total controllable capacity of the multiple distribution systems corresponding to the multiple decision systems, and the controllable capacity includes the rechargeable capacity or the dischargeable capacity; if the fourth controlled power quantity is not less than the controlled power quantity of the first decision system in the second time period, then the controlled power quantity of the first decision system in the second time period is determined to be the first controlled power quantity, and the second controlled power quantity is determined to be zero; if the fourth controlled power quantity is less than the controlled power quantity of the first decision system in the second time period, then the fourth controlled power quantity is determined to be the first controlled power quantity, and the difference between the controlled power quantity of the first decision system in the second time period and the fourth controlled power quantity is determined to be the second controlled power quantity.

[0019] In this application, the above method can ensure the regulation efficiency of the entire energy storage system without affecting the remote EMS's control over peak shaving and valley filling of the entire energy storage system.

[0020] In a feasible example, before sending the first controlled power quantity to the distribution system corresponding to the first decision system, the method further includes: sending the first controlled power quantity to the second decision system; and upon receiving a third control instruction from the second decision system, performing the operation of sending the first controlled power quantity to the distribution system corresponding to the first decision system; wherein the third control instruction is used to instruct the first decision system to send the first controlled power quantity to the distribution system corresponding to the first decision system, and the third control instruction is generated by the remote EMS after confirming the first controlled power quantity of the first decision system.

[0021] In this application, the above method can ensure that the remote EMS can control the power distribution system corresponding to the first decision system in the second time period.

[0022] Secondly, this application provides a charging and discharging control device for an energy storage system. This device is applied to a first decision system among multiple decision systems within the energy storage system. The energy storage system also includes a remote energy management system (EMS). The multiple decision systems correspond to multiple power distribution systems. The device includes:

[0023] If the receiving unit does not receive the first control instruction from the remote EMS in the first time period, the sending unit is used to send an inquiry instruction to the second decision system. The first time period is the time period during which the remote EMS sends the first control instruction to the first decision system. The first control instruction includes the control power of the first decision system in the second time period. The control power includes the charging power or the discharging power. The second time period is the time period during which multiple power distribution systems need to be charged or discharged. The inquiry instruction is used to inquire whether the second decision system has received the second control instruction from the remote EMS. The second control instruction includes the control power of the second decision system in the second time period.

[0024] If the receiving unit receives a determination instruction from the second decision system, the sending unit is further configured to send an acquisition instruction to the second decision system. The acquisition instruction is used to acquire target control information, which includes the total control power of multiple decision systems in the second time period and the control power of the first decision system in the second time period. The determination instruction is used to instruct the second decision system to receive the second control instruction from the remote EMS.

[0025] The receiving unit is also used to receive target control information from the second decision system. The determining unit is used to determine the first control amount and the second control amount based on the target control information. The control amount of the first decision system in the second time period is the sum of the first control amount and the second control amount. The first control amount is the total control amount of the distribution system corresponding to the first decision system in the second time period of multiple decision systems. The second control amount is the additional control amount of the distribution system corresponding to the other decision systems in the multiple decision systems besides the first decision system that needs to be controlled in the second time period.

[0026] The transmitting unit is used to send the second controlled power to the second decision system, so that the second decision system sends the second controlled power to the remote EMS, so that the remote EMS distributes the second controlled power to other decision systems, and sends the first controlled power to the power distribution system corresponding to the first decision system, so that the power distribution system corresponding to the first decision system performs charging or discharging control in the second time period.

[0027] Thirdly, this application provides an electronic device, which includes a processor, a memory, and a communication interface. The processor, memory, and communication interface are interconnected and perform communication with each other. The memory stores executable program code, the communication interface is used for wireless communication, and the processor is used to retrieve the executable program code stored in the memory and execute some or all of the steps described in any of the methods in the first aspect.

[0028] Fourthly, this application provides a computer-readable storage medium storing electronic data, which, when executed by a processor, is used to perform the electronic data to implement some or all of the steps described in the first aspect of this application.

[0029] Fifthly, this application provides a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program operable to cause a computer to perform some or all of the steps described in the first aspect of this application. The computer program product may be a software installation package. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 A schematic diagram of an energy storage system provided in this application;

[0032] Figure 2 A flowchart illustrating a charging and discharging control method for an energy storage system provided in this application;

[0033] Figure 3 A schematic diagram of another energy storage system provided in this application;

[0034] Figure 4a This is a functional unit block diagram of a charging and discharging control device for an energy storage system provided in this application;

[0035] Figure 4b This is a functional unit block diagram of another energy storage system charge and discharge control device provided in this application;

[0036] Figure 5 This is a structural block diagram of an electronic device provided in this application. Detailed Implementation

[0037] To enable those skilled in the art to better understand the present application, the technical solutions of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present application.

[0038] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps is not limited to the steps listed, but may optionally include steps not listed, or may optionally include other steps inherent to these processes, methods, products, or apparatuses.

[0039] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0040] Please see Figure 1 , Figure 1 A schematic diagram of an energy storage system provided in this application is shown below. Figure 1 As shown, the energy storage system 100 includes a remote EMS 101, multiple decision systems 102, and multiple power distribution systems 103.

[0041] The remote EMS101 is mainly used to monitor and control the various devices in the energy storage system 100, especially to monitor and control the multiple decision systems 102.

[0042] Multiple decision-making systems 102 monitor and control multiple power distribution systems 103 respectively. Simultaneously, the multiple decision-making systems 102 can communicate and exchange information with each other, thereby enabling communication and exchange between the multiple power distribution systems 103. For example, one power distribution system 103 may correspond to a microgrid, and the decision-making system 102 may be a local controller that monitors and controls a microgrid.

[0043] The remote EMS 101 sends the power demand for peak shaving or valley filling corresponding to each of the multiple power distribution systems 103 to the multiple decision systems 102 corresponding to each of the multiple power distribution systems 103. If a communication failure occurs between the remote EMS 101 and the first decision system among the multiple decision systems 102, the first decision system relays the information through the second decision system among the multiple decision systems 102, thereby realizing communication between the first decision system and the remote EMS 101.

[0044] Peak shaving refers to the EMS system controlling the energy storage system to discharge during peak electricity consumption periods to reduce grid pressure, corresponding to the need for the power distribution system to perform discharge control in this application; valley filling refers to the EMS system controlling the energy storage system to charge during off-peak electricity consumption periods to store excess electricity, corresponding to the need for the power distribution system to perform charging control in this application.

[0045] Based on this, this application provides a charging and discharging control method for an energy storage system, which will be described in detail below with reference to the accompanying drawings.

[0046] Please see Figure 2 , Figure 2 This application provides a flowchart illustrating a charging and discharging control method for an energy storage system. This method is applied to the first decision system among multiple decision systems in the aforementioned energy storage system, such as... Figure 2 As shown, the method includes the following steps:

[0047] Step 201: If no first control instruction is received from the remote EMS during the first time period, an inquiry instruction is sent to the second decision system.

[0048] The first time period is the time period during which the remote EMS sends the first control instruction to the first decision system. The first control instruction includes the control power of the first decision system in the second time period, which includes the charging amount or the discharging amount. The second time period is the time period during which multiple power distribution systems need to be charged or discharged. The query instruction is used to query whether the second decision system has received the second control instruction from the remote EMS. The second control instruction includes the control power of the second decision system in the second time period.

[0049] If the first decision-making system does not receive the first control command from the remote EMS during the first time period, it can preliminarily determine that there is a communication failure between the first decision-making system and the remote EMS. At this time, it needs to send an inquiry command to the second decision-making system to determine whether the second decision-making system has received the second control command from the remote EMS, thereby determining whether there is a communication failure between the second decision-making system and the remote EMS. The controlled power corresponds to the second time period. If the second time period is a time period that needs to be charged, the controlled power is the charging power; if the second time period is a time period that needs to be discharged, the controlled power is the discharging power. The same applies to the adjustable capacity and the total adjustable capacity described below.

[0050] In a feasible example, before sending the query instruction to the second decision system, the method further includes: sending a feedback instruction to the remote EMS, the feedback instruction being used to instruct the remote EMS to provide feedback to the first decision system on whether the instruction has been received; and if no feedback is received from the remote EMS, performing the operation of sending the query instruction to the second decision system.

[0051] During peak shaving and valley filling control, there may be situations where the main EMS fails to allocate control power to the distribution system corresponding to the first decision system. Therefore, if it is determined that no first control command has been received from the remote EMS, a feedback command can be sent to the remote EMS to instruct it to report back to the first decision system whether the command has been received. If no feedback is received from the remote EMS, it can be definitively determined that there is a communication failure between the first decision system and the remote EMS. The aforementioned method helps improve the accuracy of determining whether there is a communication failure between the first decision system and the remote EMS.

[0052] Step 202: If a confirmation instruction is received from the second decision system, an acquisition instruction is sent to the second decision system.

[0053] The acquisition instruction is used to acquire target control information, which includes the total electricity demand in the second time period and the control electricity of the first decision system in the second time period. The confirmation instruction is used to instruct the second decision system to receive the second control instruction from the remote EMS. When the confirmation instruction is received from the second decision system, it can be confirmed that the second decision system has received the second control instruction from the remote EMS, indicating that the communication between the second decision system and the remote EMS is normal. Therefore, the first decision system requests target control information from the second decision system, and this target control information also needs to be acquired by the second decision system from the remote EMS.

[0054] For example, please refer to Figure 3 , Figure 3 A schematic diagram of another energy storage system provided in this application is shown below. Figure 3 As shown, the system includes a remote EMS and N decision-making systems. Communication between the first decision-making system and the remote EMS fails, while communication between the second decision-making system and the N-1 other decision-making systems (including the Nth decision-making system) and the remote EMS is normal. Communication is established among the N decision-making systems. If the first decision-making system needs to communicate with the remote EMS, it can send a message to the remote EMS through the second decision-making system. Specifically, after the first decision-making system sends a message to the second decision-making system, the second decision-making system then forwards the message to the remote EMS. The process for the first decision-making system to receive messages from the remote EMS is similar.

[0055] Step 203: Receive target control information from the second decision system, and determine the first control power and the second control power based on the target control information.

[0056] In this context, the regulation power of the first decision system in the second time period is the sum of the first regulation power and the second regulation power. The first regulation power is the power that the distribution system corresponding to the first decision system needs to regulate in the second time period, and the second regulation power is the additional power that the distribution systems corresponding to the other decision systems besides the first decision system need to regulate in the second time period.

[0057] When a communication failure is identified between the primary decision-making system and the remote EMS, the control exerted by the primary decision-making system reduces the remote EMS's control over peak shaving and valley filling of the entire energy storage system. Therefore, this application allocates a portion or all of the electricity that should be controlled by the distribution system corresponding to the primary decision-making system to other decision-making systems for processing, which can improve the remote EMS's control over peak shaving and valley filling of the entire energy storage system.

[0058] Specifically, in a feasible example, determining the first and second controlled power quantities based on target control information includes: obtaining the total controllable capacity of the distribution system corresponding to other decision systems in multiple decision systems, where the total controllable capacity includes the total rechargeable capacity or the total dischargeable capacity; if the ratio between the total controlled power quantity of multiple decision systems in the second time period and the total controllable capacity of the distribution system corresponding to other decision systems is not greater than a first preset ratio, determining the controlled power quantity of the first decision system in the second time period as the second controlled power quantity, and determining the first controlled power quantity as zero, and the first preset ratio being less than one.

[0059] In this application, the total controllable capacity of the distribution systems corresponding to other decision systems in the multiple decision systems is obtained by the first decision system through the second decision system. The ratio of the total controlled electricity of the multiple decision systems in the second time period to the total controllable capacity of the distribution systems corresponding to other decision systems is determined because if this ratio is small, the distribution system corresponding to the first decision system does not need to participate in the control, and this has no impact on the entire energy storage system. Therefore, in this application, when the ratio of the total controlled electricity of the multiple decision systems in the second time period to the total controllable capacity of the distribution systems corresponding to other decision systems is not greater than a first preset ratio, it is determined that all the controlled electricity of the first decision system in the second time period is handled by other decision systems. This improves the remote EMS's control over peak shaving and valley filling of the entire energy storage system.

[0060] Furthermore, in a feasible example, the method further includes: if the ratio between the total controlled power of multiple decision systems in the second time period and the total controllable capacity of the distribution system corresponding to other decision systems is greater than a first preset ratio, determining whether the ratio between the controlled power of the first decision system in the second time period and the total controlled power of multiple decision systems in the second time period is greater than a second preset ratio; if it is determined that the ratio between the controlled power of the first decision system in the second time period and the total controlled power of multiple decision systems in the second time period is greater than the second preset ratio, then obtaining a first ratio between the controlled power of each decision system in the other decision systems and the controllable capacity of the distribution system corresponding to that decision system. The adjustable capacity includes rechargeable capacity or dischargeable capacity; the third adjustable quantity is determined based on the first average ratio and the adjustable capacity of the distribution system corresponding to the first decision system, where the first average ratio is the average of the first ratios corresponding to other decision systems; if the third adjustable quantity is not less than the adjustable quantity of the first decision system in the second time period, then the adjustable quantity of the first decision system in the second time period is determined as the first adjustable quantity, and the first adjustable quantity is zero; if the third adjustable quantity is less than the adjustable quantity of the first decision system, then the third adjustable quantity is determined as the first adjustable quantity, and the difference between the adjustable quantity of the first decision system in the second time period and the third adjustable quantity is determined as the second adjustable quantity.

[0061] In some cases, when the ratio of the total controlled electricity of multiple decision-making systems in the second time period to the total controllable capacity of the distribution systems corresponding to other decision-making systems is not small, the absence of control by the distribution system corresponding to the first decision-making system may have a certain impact on the entire energy storage system, such as affecting the control efficiency of the entire energy storage system. In this situation, this application determines the ratio of the controlled electricity of the first decision-making system in the second time period to the total controlled electricity of multiple decision-making systems in the second time period. If the ratio of the controlled electricity of the first decision-making system in the second time period to the total controlled electricity of multiple decision-making systems in the second time period is large, in order to improve the control of the remote EMS for peak shaving and valley filling of the entire energy storage system, it is more necessary to allocate a portion of the controlled electricity of the first decision-making system in the second time period for control through the distribution systems corresponding to other decision-making systems.

[0062] This application allocates the controlled power of the first decision system in the second time period by analyzing the overall control situation of other decision systems. Specifically, the second decision system obtains a first ratio between the controlled power of each decision system in the other decision systems and the controllable capacity of the corresponding distribution system, and determines the average value (first average ratio) of the first ratios for each of the other decision systems. Based on this first average ratio, the overall control situation of the other decision systems can be determined, and a third controlled power is determined based on the first average ratio and the controllable capacity of the distribution system corresponding to the first decision system. The first and second controlled power are determined by comparing the magnitude of the third controlled power with the controlled power of the first decision system in the second time period. If the third controlled power is not less than the controlled power of the first decision system in the second time period, the controlled power of the first decision system in the second time period is determined as the first controlled power, and the first controlled power is zero. If the third controlled power is less than the controlled power of the first decision system, the third controlled power is determined as the first controlled power, and the difference between the controlled power of the first decision system in the second time period and the third controlled power is determined as the second controlled power.

[0063] For example, if there are four decision systems, including decision system 1, decision system 2, decision system 3 and decision system 4, and the controllable power of the four decision systems in the second time period and the controllable capacity of the corresponding power distribution systems are respectively, decision system 1 (4,10), decision system 2 (4,10), decision system 3 (5,20) and decision system 4 (5,20), where decision system 1 is a decision system that has a communication failure with the remote EMS, if the controllable power allocation needs to be performed in the above example, then the first average ratio of the other three decision systems needs to be determined, which is (4 / 10+5 / 20+5 / 20) / 3=0.3. Therefore, the third controllable power of decision system 1 can be determined to be 3. Thus, the first controllable power of decision system 1 is determined to be 3 and the second controllable power is determined to be 1.

[0064] In this application, the above method can not only improve the control of the remote EMS over the peak shaving and valley filling of the entire energy storage system, but also ensure the control efficiency of the entire energy storage system.

[0065] In addition, in a feasible example, the method further includes: if it is determined that the ratio of the regulation power of the first decision system in the second time period to the total regulation power of multiple decision systems in the second time period is not greater than a second preset ratio, then the second regulation power is determined to be zero, and the regulation power of the first decision system in the second time period is determined to be the first regulation power.

[0066] If the ratio of the controlled electricity volume of the first decision-making system in the second time period to the total controlled electricity volume of multiple decision-making systems in the second time period is small, then the controlled electricity volume of the first decision-making system in the second time period has a relatively small impact on the remote EMS's control over peak shaving and valley filling of the entire energy storage system. In this case, the controlled electricity volume of the first decision-making system in the second time period can be entirely controlled by the distribution system corresponding to the first decision-making system. That is, the second controlled electricity volume is determined to be zero, and the controlled electricity volume of the first decision-making system in the second time period is determined to be the first controlled electricity volume. In this way, the control efficiency of the entire energy storage system can be guaranteed without affecting the remote EMS's control over peak shaving and valley filling of the entire energy storage system.

[0067] Furthermore, in a feasible example, determining the first and second controllable quantities based on target control information includes: obtaining the total controllable capacity of multiple distribution systems corresponding to multiple decision systems, where the total controllable capacity includes the total rechargeable capacity or the total dischargeable capacity; determining the fourth controllable quantity of the first decision system based on a second ratio and the total controllable quantity of the multiple decision systems in a second time period, where the second ratio is the ratio of the controllable capacity of the distribution system corresponding to the first decision system to the total controllable capacity of the multiple distribution systems corresponding to the multiple decision systems, and the controllable capacity includes the rechargeable capacity or the dischargeable capacity; if the fourth controllable quantity is not less than the controllable quantity of the first decision system in the second time period, then the controllable quantity of the first decision system in the second time period is determined to be the first controllable quantity, and the second controllable quantity is determined to be zero; if the fourth controllable quantity is less than the controllable quantity of the first decision system in the second time period, then the fourth controllable quantity is determined to be the first controllable quantity, and the difference between the controllable quantity of the first decision system in the second time period and the fourth controllable quantity is determined to be the second controllable quantity.

[0068] In general, when disregarding the situation in the example above and directly allocating the controlled power of the first decision system in the second time period, the total controllable capacity of multiple distribution systems can be considered for allocation. This is because controllable capacity is the most influential factor in allocating controlled power to the distribution system corresponding to each decision system. Specifically, this example determines the fourth controlled power of the first decision system by multiplying the second ratio between the controllable capacity of the distribution system corresponding to the first decision system and the total controllable capacity of the multiple distribution systems corresponding to multiple decision systems by the total controlled power of the multiple decision systems in the second time period. The controlled power of the first decision system in the second time period is then allocated by comparing the magnitude of the fourth controlled power with the controlled power of the first decision system in the second time period. If the fourth controlled power is not less than the controlled power of the first decision system in the second time period, the controlled power of the first decision system in the second time period is determined as the first controlled power, and the second controlled power is determined to be zero. If the fourth controlled power is less than the controlled power of the first decision system in the second time period, the fourth controlled power is determined as the first controlled power, and the difference between the controlled power of the first decision system in the second time period and the fourth controlled power is determined as the second controlled power.

[0069] In this application, the above method can ensure the regulation efficiency of the entire energy storage system without affecting the remote EMS's control over peak shaving and valley filling of the entire energy storage system.

[0070] Step 204: Send the second control power to the second decision system, so that the second decision system sends the second control power to the remote EMS, so that the remote EMS distributes the second control power to other decision systems, and sends the first control power to the power distribution system corresponding to the first decision system, so that the power distribution system corresponding to the first decision system can perform charging or discharging control in the second time period.

[0071] Among them, the remote EMS can allocate the second control power to other decision-making systems according to its specific control power allocation rules.

[0072] Furthermore, in a feasible example, before sending the first controlled power quantity to the distribution system corresponding to the first decision system, the method further includes: sending the first controlled power quantity to the second decision system; and upon receiving a third control instruction from the second decision system, performing the operation of sending the first controlled power quantity to the distribution system corresponding to the first decision system; wherein, the third control instruction is used to instruct the first decision system to send the first controlled power quantity to the distribution system corresponding to the first decision system, and the third control instruction is generated by the remote EMS after confirming the first controlled power quantity of the first decision system.

[0073] Before the first decision-making system sends the first controlled power quantity to the corresponding distribution system, it needs to send it to the remote EMS for confirmation. This ensures that the remote EMS has control over the distribution system corresponding to the first decision-making system during the second time period. If the first decision-making system needs to send the first controlled power quantity to the remote EMS for confirmation, it still needs to send the first controlled power quantity to the second decision-making system first, which then forwards it to the remote EMS. The remote EMS's determination of the first controlled power quantity may include confirming that the first controlled power quantity is not greater than the controllable capacity of the distribution system corresponding to the first decision-making system, and that the sum of the first controlled power quantity and the second controlled power quantity equals the controlled power quantity of the first decision-making system during the second time period.

[0074] As can be seen, in this application, when the first decision system determines that a communication failure has occurred with the remote EMS, the second decision system, which has not experienced a communication failure with the remote EMS, acts as an information relay to achieve communication with the remote EMS. This allows the first decision system to maintain communication with the remote EMS even when a communication failure has occurred, enabling the first decision system to obtain the corresponding control information through the second decision system. At the same time, the information exchange through the second decision system also allows the remote EMS to be aware of the failure with the first decision system. Furthermore, by obtaining the corresponding target control information through the second decision system and allocating part or all of the electricity that should have been controlled by the distribution system corresponding to the first decision system to other decision systems for processing, the remote EMS's control over peak shaving and valley filling of the entire energy storage system can be improved.

[0075] For embodiments consistent with those shown above, please refer to... Figure 4a , Figure 4a This is a functional unit block diagram of a charging and discharging control device for an energy storage system provided in this application, such as... Figure 4a As shown, the energy storage system charge / discharge control device 40 is applied to the first decision system among multiple decision systems in the aforementioned energy storage system. The energy storage system charge / discharge control device 40 includes:

[0076] If the receiving unit 401 does not receive the first control instruction from the remote EMS in the first time period, the sending unit 402 is used to send an inquiry instruction to the second decision system. The first time period is the time period during which the remote EMS sends the first control instruction to the first decision system. The first control instruction includes the control power of the first decision system in the second time period. The control power includes the charging power or the discharging power. The second time period is the time period during which multiple power distribution systems need to be charged or discharged. The inquiry instruction is used to inquire whether the second decision system has received the second control instruction from the remote EMS. The second control instruction includes the control power of the second decision system in the second time period.

[0077] If the receiving unit 401 receives a determination instruction from the second decision system, the sending unit 402 is further configured to send an acquisition instruction to the second decision system. The acquisition instruction is used to acquire target control information, which includes the total control power of multiple decision systems in the second time period and the control power of the first decision system in the second time period. The determination instruction is used to instruct the second decision system to receive the second control instruction from the remote EMS.

[0078] The receiving unit 401 is further configured to receive target control information from the second decision system, and the determining unit 403 is configured to determine the first control amount and the second control amount based on the target control information. The control amount of the first decision system in the second time period is the sum of the first control amount and the second control amount. The first control amount is the total control amount of the power distribution system corresponding to the first decision system in the second time period of multiple decision systems. The second control amount is the additional control amount that the power distribution system corresponding to other decision systems besides the first decision system needs to control in the second time period.

[0079] The transmitting unit 402 is used to send the second controlled power to the second decision system, so that the second decision system sends the second controlled power to the remote EMS, so that the remote EMS distributes the second controlled power to other decision systems, and sends the first controlled power to the power distribution system corresponding to the first decision system, so that the power distribution system corresponding to the first decision system performs charging or discharging control in the second time period.

[0080] In a feasible example, before sending the query instruction to the second decision system, the sending unit 402 is further configured to: send a feedback instruction to the remote EMS, the feedback instruction being used to instruct the remote EMS to provide feedback to the first decision system on whether the instruction has been received; and if no feedback is received from the remote EMS, perform the operation of sending the query instruction to the second decision system.

[0081] In a feasible example, the determining unit 403 is used to determine the first controlled power and the second controlled power based on the target control information, including: obtaining the total controllable capacity of the distribution system corresponding to other decision systems in multiple decision systems, the total controllable capacity including the total rechargeable capacity or the total dischargeable capacity; if the ratio between the total controlled power of multiple decision systems in the second time period and the total controllable capacity of the distribution system corresponding to other decision systems is not greater than a first preset ratio, the controlled power of the first decision system in the second time period is determined to be the second controlled power, and the first controlled power is determined to be zero, and the first preset ratio is less than one.

[0082] In a feasible example, the determining unit 403 is further configured to: determine whether the ratio of the regulation power of the first decision system in the second time period to the total regulation power of the multiple decision systems in the second time period is greater than a second preset ratio if the ratio between the total regulation power of the multiple decision systems in the second time period and the total controllable capacity of the distribution system corresponding to the other decision systems is greater than a first preset ratio; if it is determined that the ratio between the regulation power of the first decision system in the second time period and the total regulation power of the multiple decision systems in the second time period is greater than the second preset ratio, then obtain the first ratio between the regulation power of each decision system in the other decision systems and the controllable capacity of the distribution system corresponding to that decision system. The adjustable capacity includes rechargeable capacity or dischargeable capacity; the third adjustable quantity is determined based on the first average ratio and the adjustable capacity of the distribution system corresponding to the first decision system, where the first average ratio is the average of the first ratios corresponding to other decision systems; if the third adjustable quantity is not less than the adjustable quantity of the first decision system in the second time period, then the adjustable quantity of the first decision system in the second time period is determined as the first adjustable quantity, and the first adjustable quantity is zero; if the third adjustable quantity is less than the adjustable quantity of the first decision system, then the third adjustable quantity is determined as the first adjustable quantity, and the difference between the adjustable quantity of the first decision system in the second time period and the third adjustable quantity is determined as the second adjustable quantity.

[0083] In a feasible example, the determining unit 403 is further configured to determine the second regulating power as zero and determine the regulating power of the first decision system in the second time period as the first regulating power if the ratio of the regulating power of the first decision system in the second time period to the total regulating power of the multiple decision systems in the second time period is not greater than a second preset ratio.

[0084] In a feasible example, the determining unit 403 is used to determine the first and second controlled power quantities based on the target control information, including: obtaining the total controllable capacity of multiple distribution systems corresponding to multiple decision systems, the total controllable capacity including the total rechargeable capacity or the total dischargeable capacity; determining the fourth controlled power quantity of the first decision system based on a second ratio and the total controlled power quantity of the multiple decision systems in a second time period, the second ratio being the ratio of the controllable capacity of the distribution system corresponding to the first decision system to the total controllable capacity of the multiple distribution systems corresponding to the multiple decision systems, the controllable capacity including the rechargeable capacity or the dischargeable capacity; if the fourth controlled power quantity is not less than the controlled power quantity of the first decision system in the second time period, then the controlled power quantity of the first decision system in the second time period is determined to be the first controlled power quantity, and the second controlled power quantity is determined to be zero; if the fourth controlled power quantity is less than the controlled power quantity of the first decision system in the second time period, then the fourth controlled power quantity is determined to be the first controlled power quantity, and the difference between the controlled power quantity of the first decision system in the second time period and the fourth controlled power quantity is determined to be the second controlled power quantity.

[0085] In a feasible example, before the sending unit 402 sends the first controlled power quantity to the distribution system corresponding to the first decision system, the sending unit 402 is further configured to: send the first controlled power quantity to the second decision system; and upon receiving a third control instruction from the second decision system, execute the operation of sending the first controlled power quantity to the distribution system corresponding to the first decision system; wherein, the third control instruction is used to instruct the first decision system to send the first controlled power quantity to the distribution system corresponding to the first decision system, and the third control instruction is generated by the remote EMS after confirming the first controlled power quantity of the first decision system.

[0086] It is understood that since the method embodiments and the device embodiments are different presentations of the same technical concept, the content of the method embodiment section in this application should be adapted to the device embodiment section in a synchronous manner, and will not be repeated here.

[0087] When using integrated units, such as Figure 4b As shown, Figure 4b This is a functional unit block diagram of another energy storage system charge / discharge control device provided in this application. Figure 4b In this document, the energy storage system charge / discharge control device 41 includes a processing module 412 and a communication module 411. The processing module 412 controls and manages the operation of the energy storage system charge / discharge control device, for example, the steps of the receiving unit 401, the sending unit 402, and the determining unit 403, and / or other processes for executing the techniques described herein. The communication module 411 supports interaction between the energy storage system charge / discharge control device and other devices. Figure 4b As shown, the energy storage system charge and discharge control device 41 may further include a storage module 413, which is used to store the program code and data of the energy storage system charge and discharge control device.

[0088] The processing module 412 can be a processor or controller, such as a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), an ASIC, an FPGA, or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of this application. The processor can also be a combination that implements computational functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, etc. The communication module 411 can be a transceiver, RF circuitry, or a communication interface, etc. The storage module 413 can be a memory.

[0089] All relevant content in each scenario involved in the above method embodiments can be referenced from the functional descriptions of the corresponding functional modules, and will not be repeated here. Figure 2 The energy storage system charging and discharging control method is shown.

[0090] The above embodiments can be implemented, in whole or in part, by software, hardware, firmware, or any other combination thereof. When implemented using software, the above embodiments can be implemented, in whole or in part, as a computer program product. A computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on a computer, all or part of the processes or functions according to this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. Computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired or wireless means. A computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more sets of available media. The available medium can be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium. A semiconductor medium can be a solid-state drive.

[0091] Figure 5 This is a structural block diagram of an electronic device provided in this application. For example... Figure 5 As shown, the electronic device 500 may include one or more of the following components: a processor 501 and a memory 502 coupled to the processor 501, wherein the memory 502 may store one or more computer programs, which may be configured to implement the methods described in the above embodiments when executed by one or more processors 501.

[0092] Processor 501 may include one or more processing cores. Processor 501 connects to various parts within the electronic device 500 using various interfaces and lines, and performs various functions and processes data of the electronic device 500 by running or executing instructions, programs, code sets, or instruction sets stored in memory 502, and by calling data stored in memory 502. Optionally, processor 501 may be implemented using at least one hardware form of Digital Signal Processing (DSP), Field-Programmable Gate Array (FPGA), or Programmable Logic Array (PLA). Processor 501 may integrate one or a combination of several of the following: Central Processing Unit (CPU), Graphics Processing Unit (GPU), and modem. It is understood that the aforementioned modem may also not be integrated into processor 501, but may be implemented separately through a communication chip.

[0093] The memory 502 may include random access memory (RAM) or read-only memory (ROM). The memory 502 can be used to store instructions, programs, code, code sets, or instruction sets. The memory 502 may include a program storage area and a data storage area. The program storage area may store instructions for implementing an operating system, instructions for implementing at least one function (such as touch functionality, sound playback functionality, image playback functionality, etc.), and instructions for implementing the various method embodiments described above. The data storage area may also store data created by the electronic device 500 during use.

[0094] It is understood that the electronic device 500 may include more or fewer structural elements than those shown in the above block diagram, such as a power module, physical buttons, WiFi (Wireless Fidelity) module, speaker, Bluetooth module, sensor, etc., without limitation.

[0095] The aforementioned energy storage system charge and discharge control device 40, energy storage system charge and discharge control device 41, and electronic device 500 may be part of multiple decision-making systems in the energy storage system 100 or devices independent of the energy storage system 100.

[0096] This application provides a computer-readable storage medium storing program data, which, when executed by a processor, is used to perform some or all of the steps of any of the energy storage system charge-discharge control methods described in the above method embodiments.

[0097] This application also provides a computer program product, which includes a non-transitory computer-readable storage medium storing a computer program operable to cause a computer to perform some or all of the steps of any of the energy storage system charge / discharge control methods described in the above method embodiments. The computer program product can be a software installation package.

[0098] It should be noted that, for the sake of simplicity, all embodiments of the aforementioned energy storage system charging and discharging control method are described as a series of actions. However, those skilled in the art should understand that this application is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to this application. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions involved are not necessarily essential to this application.

[0099] Although this application has been described herein in conjunction with various embodiments, those skilled in the art, by reviewing the accompanying drawings, disclosure, and appended claims, will understand and implement other variations of the disclosed embodiments in carrying out the claimed application. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "an" does not exclude multiple instances. While different dependent claims may recite certain measures, this does not mean that these measures cannot be combined to produce a good effect.

[0100] Those skilled in the art will understand that all or part of the steps in the various methods of any of the above-described embodiments of the energy storage system charging and discharging control method can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage device, which may include: a flash drive, a read-only memory (ROM), a random access memory (RAM), a disk, or an optical disk, etc.

[0101] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the energy storage system charging and discharging control method, device, electronic device, and storage medium of the present application. The description of the above embodiments is only for the purpose of helping to understand the method and its core ideas of the present application. At the same time, for those skilled in the art, based on the ideas of the energy storage system charging and discharging control method, device, electronic device, and storage medium of the present application, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of the present application.

[0102] This application is described with reference to flowchart illustrations and / or block diagrams of the methods, hardware products, and computer program products of this application. It should be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing device to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing device, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0103] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0104] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0105] It is understood that any product that is controlled or configured to execute the processing method of the flowchart described in the method embodiment of the energy storage system charging and discharging control method of this application, such as the terminal and computer program product of the above flowchart, falls within the scope of the related products described in this application.

[0106] Obviously, those skilled in the art can make various modifications and variations to the energy storage system charging and discharging control method, apparatus, electronic device, and storage medium provided in this application without departing from the spirit and scope of this application. Therefore, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalents, this application also intends to include these modifications and variations.

Claims

1. A charging and discharging control method for an energy storage system, characterized in that, The method is applied to the first decision system among multiple decision systems in an energy storage system, wherein the energy storage system further includes a remote energy management system (EMS), and the multiple decision systems correspond to multiple power distribution systems. The method includes: If no first control instruction is received from the remote EMS in the first time period, an inquiry instruction is sent to the second decision system. The first time period is the time period during which the remote EMS sends the first control instruction to the first decision system. The first control instruction includes the control power of the first decision system in the second time period. The control power includes charging power or discharging power. The second time period is the time period during which the multiple power distribution systems need to charge or discharge. The inquiry instruction is used to inquire whether the second decision system has received a second control instruction from the remote EMS. The second control instruction includes the control power of the second decision system in the second time period. If a determination instruction is received from the second decision system, an acquisition instruction is sent to the second decision system. The acquisition instruction is used to acquire target control information, which includes the total control power of the multiple decision systems in the second time period and the control power of the first decision system in the second time period. The determination instruction is used to instruct the second decision system to receive the second control instruction from the remote EMS. The system receives the target control information from the second decision system and determines the first control amount and the second control amount based on the target control information. The control amount of the first decision system in the second time period is the sum of the first control amount and the second control amount. The first control amount is the total control amount of the distribution system corresponding to the first decision system in the second time period of the multiple decision systems. The second control amount is the additional control amount of the distribution system corresponding to the other decision systems in the multiple decision systems besides the first decision system that needs to be controlled in the second time period. The second controlled power is sent to the second decision system, so that the second decision system sends the second controlled power to the remote EMS, so that the remote EMS distributes the second controlled power to the other decision systems, and sends the first controlled power to the power distribution system corresponding to the first decision system, so that the power distribution system corresponding to the first decision system performs charging or discharging control in the second time period.

2. The method according to claim 1, characterized in that, Determining the first and second control quantities based on the target control information includes: The second decision system obtains the total adjustable capacity of the power distribution system corresponding to other decision systems in the plurality of decision systems, and the total adjustable capacity includes the total rechargeable capacity or the total dischargeable capacity. If the ratio between the total controlled power of the multiple decision systems in the second time period and the total controllable capacity of the distribution system corresponding to the other decision systems is not greater than a first preset ratio, the controlled power of the first decision system in the second time period is determined to be the second controlled power, and the first controlled power is determined to be zero, and the first preset ratio is less than one.

3. The method according to claim 2, characterized in that, The method further includes: If the ratio between the total controllable power of the multiple decision systems in the second time period and the total controllable capacity of the distribution system corresponding to the other decision systems is greater than the first preset ratio, it is determined whether the ratio between the controllable power of the first decision system in the second time period and the total controllable power of the multiple decision systems in the second time period is greater than the second preset ratio. If it is determined that the ratio of the regulation power of the first decision system in the second time period to the total regulation power of the multiple decision systems in the second time period is greater than the second preset ratio, then the first ratio between the regulation power of each decision system in the other decision systems and the controllable capacity of the power distribution system corresponding to that decision system is obtained, wherein the controllable capacity includes rechargeable capacity or dischargeable capacity. The third controllable power quantity is determined based on the first average ratio and the controllable capacity of the power distribution system corresponding to the first decision system, wherein the first average ratio is the average value among the first ratios corresponding to the other decision systems respectively. If the third regulating power is not less than the regulating power of the first decision system in the second time period, then the regulating power of the first decision system in the second time period is determined to be the first regulating power, and the first regulating power is zero. If the third regulating power is less than the regulating power of the first decision system, then the third regulating power is determined to be the first regulating power, and the difference between the regulating power of the first decision system in the second time period and the third regulating power is determined to be the second regulating power.

4. The method according to claim 3, characterized in that, The method further includes: If it is determined that the ratio of the regulation power of the first decision system in the second time period to the total regulation power of the multiple decision systems in the second time period is not greater than the second preset ratio, then the second regulation power is determined to be zero, and the regulation power of the first decision system in the second time period is determined to be the first regulation power.

5. The method according to claim 1, characterized in that, Determining the first and second control quantities based on the target control information includes: The second decision system obtains the total adjustable capacity of multiple power distribution systems corresponding to the multiple decision systems, and the total adjustable capacity includes the total rechargeable capacity or the total dischargeable capacity. The fourth control power of the first decision system is determined based on the second ratio and the total control power of the multiple decision systems in the second time period. The second ratio is the ratio of the controllable capacity of the distribution system corresponding to the first decision system to the total controllable capacity of the multiple distribution systems corresponding to the multiple decision systems. The controllable capacity includes rechargeable capacity or dischargeable capacity. If the fourth regulation power is not less than the regulation power of the first decision system in the second time period, then the regulation power of the first decision system in the second time period is determined to be the first regulation power, and the second regulation power is determined to be zero. If the fourth regulating power is less than the regulating power of the first decision system in the second time period, then the fourth regulating power is determined to be the first regulating power, and the difference between the regulating power of the first decision system in the second time period and the fourth regulating power is determined to be the second regulating power.

6. The method according to claim 1, characterized in that, Before sending the query instruction to the second decision system, the method further includes: Send a feedback instruction to the remote EMS, the feedback instruction being used to instruct the remote EMS to report back to the first decision system whether the instruction has been received; If no feedback is received from the remote EMS, an operation is performed to send an inquiry command to the second decision system.

7. The method according to any one of claims 1-6, characterized in that, Before sending the first regulated power quantity to the distribution system corresponding to the first decision system, the method further includes: The first controlled power quantity is sent to the second decision-making system; Upon receiving a third control instruction from the second decision system, the operation of sending the first control power quantity to the power distribution system corresponding to the first decision system is executed. The third control instruction is used to instruct the first decision system to send the first control power to the distribution system corresponding to the first decision system. The third control instruction is generated by the remote EMS after confirming the first control power of the first decision system.

8. A charging and discharging control device for an energy storage system, characterized in that, The device is applied to the first decision system among multiple decision systems in an energy storage system. The energy storage system also includes a remote energy management system (EMS). The multiple decision systems correspond to multiple power distribution systems. The device includes: If the receiving unit does not receive the first control instruction from the remote EMS in the first time period, the sending unit is used to send an inquiry instruction to the second decision system. The first time period is the time period during which the remote EMS sends the first control instruction to the first decision system. The first control instruction includes the control power of the first decision system in the second time period. The control power includes charging power or discharging power. The second time period is the time period during which the multiple power distribution systems need to charge or discharge. The inquiry instruction is used to inquire whether the second decision system has received the second control instruction from the remote EMS. The second control instruction includes the control power of the second decision system in the second time period. If the receiving unit receives a determination instruction from the second decision system, the sending unit is further configured to send an acquisition instruction to the second decision system. The acquisition instruction is used to acquire target control information, which includes the total control power of the multiple decision systems in the second time period and the control power of the first decision system in the second time period. The determination instruction is used to instruct the second decision system to receive a second control instruction from the remote EMS. The receiving unit is further configured to receive the target control information from the second decision system, and the determining unit is configured to determine the first control power and the second control power based on the target control information. The control power of the first decision system in the second time period is the sum of the first control power and the second control power. The first control power is the total control power of the power distribution system corresponding to the first decision system in the second time period of the plurality of decision systems. The second control power is the additional control power required by the power distribution systems corresponding to the other decision systems in the plurality of decision systems besides the first decision system in the second time period. The transmitting unit is used to send the second controlled power to the second decision system, so that the second decision system sends the second controlled power to the remote EMS, so that the remote EMS distributes the second controlled power to the other decision systems, and sends the first controlled power to the power distribution system corresponding to the first decision system, so that the power distribution system corresponding to the first decision system performs charging or discharging control in the second time period.

9. An electronic device, characterized in that, include: The processor, the memory, and the communication interface are interconnected and perform communication between them. The memory stores executable program code, and the communication interface is used for wireless communication. The processor is configured to retrieve the executable program code stored in the memory and execute the method as described in any one of claims 1-7.

10. A computer-readable storage medium, characterized in that, A computer program for storing electronic data interchange, wherein the computer program causes a computer to perform the method as described in any one of claims 1-7.

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