Energy storage system and charging system expansion management method and energy supply management system

Abstract

The application relates to the technical field of electric energy management and control, and discloses an energy storage system, a charging system expansion management and control method, and an energy supply management and control system. According to the application, the charging system automatically supplies power to the energy storage system in standby mode and dynamically calls the energy storage system to supply power to the powered equipment according to load information in the charging mode, so that the charging system can flexibly switch and integrate the two functions of'vehicle end charging' and 'energy storage power supply'. The power supply mechanism for the energy storage system in the standby mode can effectively eliminate the energy attenuation of the energy storage system during standby and realize timely power supply of the energy storage system. The elastic power supply and double-system collaborative power supply mechanism in the charging mode can complete the function expansion and energy storage access adaptation of the system without increasing the number of charging equipment hardware, and greatly improve the applicability and use flexibility of the overall energy supply management and control system.

Description

Technical Field

[0001] This invention relates to the field of power management technology, and in particular to a method for expanding the capacity of energy storage systems and charging systems, and a power supply management system. Background Technology

[0002] The charging capacity of conventional charging stations is limited by the capacity of the fixed transformer. When the transformer capacity is insufficient, an energy storage system is needed to assist in energy output. Currently, energy storage systems generally use a power converter (PCS) to charge the energy storage battery. During high-power output, the energy storage system injects energy into the charging system, which, together with the energy injected from the grid, charges the receiving vehicle.

[0003] In the aforementioned energy supply scenario, the energy storage system acts only as an auxiliary component, injecting its stored electrical energy into the charging system, which ultimately provides the power. This energy supply process means that the overall system's charging performance is highly dependent on the transformer's performance, and a transformer failure will paralyze the entire system, resulting in significant limitations. Therefore, providing a corresponding solution to address the high limitations and low collaboration capabilities of existing charging and energy storage systems is crucial. Summary of the Invention

[0004] This invention provides a method for expanding and managing energy storage and charging systems, as well as an energy supply management system, which can realize independent power supply and collaborative power supply of the energy storage and charging systems, thereby improving the flexibility of use of the dual systems and the intelligence of power supply control.

[0005] The first aspect of this invention discloses a method for expanding and managing an energy storage system and a charging system. The method is applied to an energy supply management system, which includes the energy storage system and the charging system. The method includes: The charging system detects the system operating condition of the power supply management system, and the system operating condition includes standby condition or charging condition. When the system is in standby mode, the charging system obtains the standby information of the energy storage system and the charging system, and determines whether the standby information indicates that the standby charging conditions are met. When it is determined that the standby information indicates that the standby charging conditions are met, the first charging operation is performed on the energy storage system to respond to the charging needs of the energy storage system in the standby mode. When the system is in the charging state, the charging system acquires the charging load information of the energy storage system and the charging system, and determines whether the power supply control conditions for the energy storage system are met based on the charging load information. When it is determined that the power supply control conditions for the energy storage system are met, the power supply management system performs a second charging operation on the powered device based on the charging load information to respond to the power supply demand of the powered device.

[0006] As an optional implementation, in the first aspect of the present invention, the standby information includes the first charge information of the energy storage system and the first load information of the transformer of the charging system; The step of determining whether the standby information indicates that the standby charging conditions are met includes: Determine whether the first charge information is lower than a first threshold, and obtain the first threshold determination result; Determine whether the first load information is lower than the second threshold, and obtain the second threshold determination result; When both the first threshold judgment result and the second threshold judgment result are yes, it is determined that the standby information indicates that the standby charging condition is met; when at least one of the first threshold judgment result and the second threshold judgment result is no, it is determined that the standby information indicates that the standby charging condition is not met.

[0007] As an optional implementation, in the first aspect of the present invention, the charging condition includes a first charging condition, and when the charging condition is the first charging condition, the main power supply system of the power supply management system includes the charging system, and the charging load information includes the second load information of the transformer of the charging system. The step of determining whether the power supply control conditions for the energy storage system are currently met based on the charging load information includes: The charging system reads the first power demand value corresponding to the current charging operation performed on the powered device; The charging system determines whether the first power demand value exceeds the second load information, and obtains the first load determination result; When the first load judgment result is yes, the charging system determines whether the second charge information of the energy storage system is greater than the third threshold, and obtains the third threshold judgment result. Specifically, when the first load judgment result is negative, or when the third threshold judgment result is negative, it is determined that the current power supply control conditions for the energy storage system are not met. When the result of the third threshold determination is yes, it is determined that the current power supply control conditions for the energy storage system are met.

[0008] As an optional implementation, in a first aspect of the invention, the step of the power supply management system performing a second charging operation on the powered equipment according to the charging load information includes: The charging system obtains the first power output range corresponding to the energy storage system and the second charge information; The charging system calculates a first response power value and a second response power value for the coordinated response of the charging system and the energy storage system to the first power demand value based on the first power demand value, the second load information, and the first power output range. The charging system generates a target control command for the second response power value and transmits the target control command to the energy storage system; the energy storage system updates its output power to the second response power value according to the target control command. The charging system performs a second charging operation on the powered device in coordination with the energy storage system in accordance with the first response power value and the second response power value.

[0009] As an optional implementation, in the first aspect of the present invention, the charging condition includes a second charging condition, and when the charging condition is the second charging condition, the main energy supply system of the energy supply management system is only the energy storage system; the charging load information includes the third charge information of the energy storage system. The step of determining whether the power supply control conditions for the energy storage system are currently met based on the charging load information includes: The energy storage system determines whether the third charge information is greater than the fourth threshold, and obtains the fourth threshold determination result; When the fourth threshold determination result is yes, the energy storage system reads the second power demand value corresponding to the current charging operation performed on the powered device. The energy storage system determines whether its current allowable output power matches the second power demand value, thus obtaining the second load determination result. Specifically, when the fourth threshold judgment result is negative, or when the second load judgment result is negative, it is determined that the current power supply control conditions for the energy storage system are not met. When the result of the fourth threshold determination is yes, it is determined that the current power supply control conditions for the energy storage system are met.

[0010] As an optional implementation, in a first aspect of the invention, the step of the power supply management system performing a second charging operation on the powered equipment according to the charging load information includes: The energy storage system obtains the second power output range corresponding to the third charge information; The energy storage system calculates a third response power value in response to the second power demand value based on the second power demand value, the third charge information, and the second power output range. The energy storage system updates its output power to the third response power value and performs a second charging operation on the powered device according to the third response power value.

[0011] As an optional implementation, in a first aspect of the present invention, performing a first charging operation on the energy storage system includes: The charging system acquires all charging methods of the energy storage system, including any one of the following: a first charging method based on the charging system, a second charging method based on external energy, and a third charging method based on the charging system and the external energy working together; the external energy includes photovoltaic energy or wind power. The charging system determines a target charging mode from all the charging modes based on the remaining energy of the charging system and the power supply of the external energy source, and performs a first charging operation on the energy storage system according to the target charging mode.

[0012] A second aspect of the present invention discloses an energy supply management system, the energy supply management system comprising the energy storage system and the charging system, the charging system comprising: The detection module is used to detect the system operating conditions of the power supply management system, including standby or charging conditions. The acquisition module is used to acquire the standby information of the energy storage system and the charging system when the system is in the standby state. The first judgment module is used to determine whether the standby information indicates that the standby charging conditions are met; A charging module is used to perform a first charging operation on the energy storage system when the first judgment module determines that the standby information indicates that the standby charging conditions are met, in order to respond to the charging needs of the energy storage system under the standby condition. The acquisition module is further configured to acquire charging load information of the energy storage system and the charging system when the system operating condition is the charging operating condition; The second judgment module is used to determine whether the power supply control conditions for the energy storage system are met based on the charging load information. The energy supply management system is used to perform a second charging operation on the powered device according to the charging load information when the second judgment module determines that the current power supply control conditions for the energy storage system are met, in order to respond to the power supply demand of the powered device.

[0013] As an optional implementation, in a second aspect of the present invention, the standby information includes first charge information of the energy storage system and first load information of the transformer of the charging system; The first determination module determines whether the standby information indicates that the standby charging conditions are met by means of the following methods: Determine whether the first charge information is lower than a first threshold, and obtain the first threshold determination result; Determine whether the first load information is lower than the second threshold, and obtain the second threshold determination result; When both the first threshold judgment result and the second threshold judgment result are yes, it is determined that the standby information indicates that the standby charging condition is met; when at least one of the first threshold judgment result and the second threshold judgment result is no, it is determined that the standby information indicates that the standby charging condition is not met.

[0014] As an optional implementation, in the second aspect of the present invention, the charging condition includes a first charging condition, and when the charging condition is the first charging condition, the main power supply system of the power supply management system includes the charging system, and the charging load information includes the second load information of the transformer of the charging system. The second judgment module determines whether the power supply control conditions for the energy storage system are currently met based on the charging load information in the following ways: The charging system reads the first power demand value corresponding to the current charging operation performed on the powered device; The charging system determines whether the first power demand value exceeds the second load information, and obtains the first load determination result; When the first load judgment result is yes, the charging system determines whether the second charge information of the energy storage system is greater than the third threshold, and obtains the third threshold judgment result. Specifically, when the first load judgment result is negative, or when the third threshold judgment result is negative, it is determined that the current power supply control conditions for the energy storage system are not met. When the result of the third threshold determination is yes, it is determined that the current power supply control conditions for the energy storage system are met.

[0015] As an optional implementation, in a second aspect of the present invention, the method by which the energy supply management system performs a second charging operation on the powered equipment based on the charging load information specifically includes: The charging system obtains the first power output range corresponding to the energy storage system and the second charge information; The charging system calculates a first response power value and a second response power value for the coordinated response of the charging system and the energy storage system to the first power demand value based on the first power demand value, the second load information, and the first power output range. The charging system generates a target control command for the second response power value and transmits the target control command to the energy storage system; the energy storage system updates its output power to the second response power value according to the target control command. The charging system performs a second charging operation on the powered device in coordination with the energy storage system in accordance with the first response power value and the second response power value.

[0016] As an optional implementation, in the second aspect of the present invention, the charging condition includes a second charging condition, and when the charging condition is the second charging condition, the main energy supply system of the energy supply management system is only the energy storage system; the charging load information includes the third charge information of the energy storage system. The second judgment module determines whether the power supply control conditions for the energy storage system are currently met based on the charging load information in the following ways: The energy storage system determines whether the third charge information is greater than the fourth threshold, and obtains the fourth threshold determination result; When the fourth threshold determination result is yes, the energy storage system reads the second power demand value corresponding to the current charging operation performed on the powered device. The energy storage system determines whether its current allowable output power matches the second power demand value, thus obtaining the second load determination result. Specifically, when the fourth threshold judgment result is negative, or when the second load judgment result is negative, it is determined that the current power supply control conditions for the energy storage system are not met. When the result of the fourth threshold determination is yes, it is determined that the current power supply control conditions for the energy storage system are met.

[0017] As an optional implementation, in a second aspect of the present invention, the method by which the energy supply management system performs a second charging operation on the powered equipment based on the charging load information specifically includes: The energy storage system obtains the second power output range corresponding to the third charge information; The energy storage system calculates a third response power value in response to the second power demand value based on the second power demand value, the third charge information, and the second power output range. The energy storage system updates its output power to the third response power value and performs a second charging operation on the powered device according to the third response power value.

[0018] As an optional implementation, in a second aspect of the present invention, the method by which the charging module performs the first charging operation on the energy storage system specifically includes: The charging system acquires all charging methods of the energy storage system, including any one of the following: a first charging method based on the charging system, a second charging method based on external energy, and a third charging method based on the charging system and the external energy working together; the external energy includes photovoltaic energy or wind power. The charging system determines a target charging mode from all the charging modes based on the remaining energy of the charging system and the power supply of the external energy source, and performs a first charging operation on the energy storage system according to the target charging mode.

[0019] A third aspect of the present invention discloses an expansion and control device for an energy storage system and a charging system, the device comprising: Memory containing executable program code; A processor coupled to the memory; The processor calls the executable program code stored in the memory to execute some or all of the steps in the expansion control method for the energy storage system and charging system according to any of the first aspects of the present invention.

[0020] The fourth aspect of the present invention discloses a computer storage medium storing computer instructions, which, when invoked, are used to execute some or all of the steps in the expansion control method for the energy storage system and charging system described in any of the first aspects of the present invention.

[0021] Compared with the prior art, the present invention has the following beneficial effects: This invention provides a method for expanding and managing an energy storage system and a charging system. The method is applied to an energy supply management system, which includes an energy storage system and a charging system. The method includes: a charging system detecting the system operating condition of the energy supply management system, including standby or charging conditions; when the system operating condition is standby, the charging system acquires standby information from both the energy storage system and the charging system, and determines whether the standby information indicates that standby charging conditions are met; if the standby information indicates that standby charging conditions are met, a first charging operation is performed on the energy storage system to respond to its charging demand in standby mode; when the system operating condition is charging, the charging system acquires charging load information from both the energy storage system and the charging system, and determines whether the current power supply control conditions for the energy storage system are met based on the charging load information; if the current power supply control conditions for the energy storage system are met, the energy supply management system performs a second charging operation on the powered device based on the charging load information to respond to its power supply demand. As can be seen, by implementing this invention, the charging system automatically replenishes the energy storage system in standby mode and dynamically calls upon the energy storage system to supply power to the receiving equipment based on load information during charging mode, thus achieving flexible switching and integration of the two functions of "charging the vehicle" and "replenishing energy storage." The energy storage system replenishment mechanism in standby mode effectively eliminates energy attenuation during standby and ensures timely replenishment. The flexible power supply and dual-system collaborative power supply mechanism in charging mode enables system functional expansion and energy storage access adaptation without increasing the number of charging devices, greatly improving the applicability and flexibility of the overall energy supply management system. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a flowchart illustrating a method for expanding and managing an energy storage system and a charging system, as disclosed in an embodiment of the present invention. Figure 2 This is a flowchart illustrating another method for expanding and managing an energy storage system and a charging system disclosed in an embodiment of the present invention. Figure 3 This is a schematic diagram of the structure of an energy supply management system disclosed in an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of an expansion control device for an energy storage system and a charging system disclosed in an embodiment of the present invention; Figure 5 This is a schematic diagram of another energy supply management system disclosed in an embodiment of the present invention. Detailed Implementation

[0024] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this invention 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, apparatus, product, or end that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or ends.

[0026] 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 the invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0027] This invention discloses a method for expanding and managing energy storage and charging systems, as well as an energy supply management system. By enabling the charging system to automatically replenish the energy storage system in standby mode and dynamically call upon the energy storage system to supply power to the receiving equipment based on load information during charging mode, it achieves flexible switching and integration of the charging system's two functions: "vehicle-side charging" and "energy storage replenishment." The energy storage replenishment mechanism in standby mode effectively eliminates energy attenuation during standby and ensures timely replenishment. The flexible power supply and dual-system collaborative power supply mechanism in charging mode enables system functional expansion and energy storage access adaptation without increasing the number of charging devices, greatly improving the applicability and flexibility of the overall energy supply management system. These are described in detail below.

[0028] Example 1 Please see Figure 1 , Figure 1This is a flowchart illustrating a method for expanding and managing an energy storage system and a charging system, as disclosed in an embodiment of the present invention. Figure 1 The described expansion and management method for energy storage and charging systems can be applied to energy supply management systems, which include both energy storage and charging systems; however, this invention does not limit the scope of the method. Figure 1 As shown, the expansion and management method for the energy storage system and charging system may include the following operations: 101. The charging system detects the system operating conditions of the power supply management system, including standby or charging conditions.

[0029] In this embodiment of the invention, the charging system is generally used as the main energy supply system and the main control system in the energy supply management system; in special cases, such as when the charging system fails, the energy storage system is switched to be the main energy supply system and the main control system.

[0030] 102. When the system is in standby mode, the charging system obtains the standby information from the energy storage system and the charging system, and determines whether the standby information indicates that the standby charging conditions are met.

[0031] In this embodiment of the invention, under standby conditions, the charging system can actively acquire standby information from the energy storage system and itself, and determine whether the standby charging conditions are met. If met, the first charging operation is immediately performed on the energy storage system. By setting a control mechanism under standby conditions, the charging system automatically transforms into a supplementary energy source for the energy storage system when there is no vehicle charging demand, avoiding energy attenuation caused by self-discharge or static losses during standby, and improving the standby available power of the energy storage system. At the same time, through this control mechanism, intelligent monitoring and timely replenishment of the energy stored in the energy storage system can be achieved, making it easier for the energy storage system to store a certain amount of energy when it is subsequently called upon, thus improving the practicality of the energy storage system to a certain extent.

[0032] 103. When it is determined that the standby information indicates that the standby charging conditions are met, the first charging operation is performed on the energy storage system to respond to the charging needs of the energy storage system under standby conditions.

[0033] 104. When the system is in charging mode, the charging system obtains the charging load information of the energy storage system and the charging system, and determines whether the power supply control conditions for the energy storage system are met based on the charging load information.

[0034] 105. When it is determined that the current power supply control conditions for the energy storage system are met, the power supply management system shall perform a second charging operation on the powered equipment according to the charging load information in order to respond to the power supply demand of the powered equipment.

[0035] In this embodiment of the invention, the power receiving device is generally a device (e.g., a rechargeable vehicle) that is compatible with the charging components (such as a national standard charging gun) of the power supply management system.

[0036] In this embodiment of the invention, by executing steps 103-105, the energy storage system is used to allocate power when the charging system's load capacity is limited, so that the charging equipment can not only draw power from the grid, but also call upon the energy storage system to charge the receiving equipment in a coordinated manner, thus realizing dual-end coordinated charging of the charging system and the energy storage system.

[0037] In this embodiment of the invention, when the power supply management system performs a second charging operation on the powered device according to the charging load information, the charging system and the energy storage system are used to supply power to the powered device in a coordinated manner by default. That is, when the load capacity of the charging system is limited, the power of the energy storage system can be allocated to achieve the coordinated power supply of the two systems, which greatly improves the power supply stability, practicality and reliability of the overall power supply management system.

[0038] In this embodiment of the invention, the charging system and the energy storage system each have a charging channel, enabling them to independently charge the powered device. Furthermore, when the charging system and the energy storage system collaboratively supply power to the powered device, they can coordinate power output through a pre-established communication signal and merge their charging channels. This achieves the merging and coordination of the output power of the two systems, ultimately resulting in a unified power output via the charging channel of the charging system.

[0039] In this embodiment of the invention, through the above mechanism, the charging system can meet the charging needs of the energy storage system and the power supply needs of vehicles and other powered devices without switching the physical topology between standby and charging modes. Compared to traditional solutions that require separate equipment or time periods for energy storage charging, the solution corresponding to steps 101 to 105 above can achieve control of two energy flow directions using the same set of charging equipment without increasing the number of charging equipment hardware. This realizes the "functional expansion" of the charging system and the "flexible access" of the energy storage system, greatly improving the applicability and flexibility of the overall energy supply management system.

[0040] It is evident that implementation Figure 1The described expansion and management method for energy storage and charging systems enables the charging system to automatically replenish the energy storage system in standby mode and dynamically call upon the energy storage system to supply power to the receiving equipment based on load information during charging mode. This achieves flexible switching and integration of the charging system's two functions: "charging the vehicle" and "replenishing energy storage." The energy replenishment mechanism for the energy storage system in standby mode effectively eliminates energy attenuation during standby and ensures timely replenishment. The flexible power supply and dual-system collaborative power supply mechanism in charging mode can complete the system's functional expansion and energy storage access adaptation without increasing the number of charging equipment hardware, greatly improving the applicability and flexibility of the overall energy supply management system.

[0041] In an optional embodiment, the charging condition includes a first charging condition, and when the charging condition is the first charging condition, the main power supply system of the power supply management system includes the charging system, and the charging load information includes the second load information of the transformer of the charging system; wherein, the second load information may include the load value of the transformer, for example, reaching 60% of the maximum load value (at this time, the load pressure of the transformer can be considered moderate, and there is still room to increase the load); or, reaching 80% of the maximum load value (at this time, the load pressure of the transformer is considered too high, and the load needs to be reduced); and the second load information may also include the current output power of the transformer.

[0042] In this optional embodiment, the method for determining whether the power supply control conditions for the energy storage system are met based on the charging load information in step 104 specifically includes: The charging system reads the first power demand value corresponding to the current charging operation performed on the powered device. The charging system determines whether the first power demand value exceeds the second load information, thus obtaining the first load determination result; When the first load judgment result is yes, the charging system judges whether the second charge information of the energy storage system is greater than the third threshold, and obtains the third threshold judgment result. Specifically, if the first load judgment result is negative, or if the third threshold judgment result is negative, it is determined that the current power supply control conditions for the energy storage system are not met. When the result of the third threshold judgment is yes, it is determined that the current power supply control conditions for the energy storage system are met.

[0043] In this optional embodiment, the first power demand value is used to indicate the output power value required to charge the powered device, and the first power demand value is dynamic, affected by the current device power level, charging time, ambient temperature, device parameters, etc. For example, if the current device power level is low, only 10% of the maximum power, and the ambient temperature is moderate, charging at the device's maximum power is allowed, that is, high-power fast charging can be performed in the early stage of charging. Or, for example, when the device has been charging for a period of time, and the current device power level recovers, for example, it is already 70% / 80% charged, then the charging mode is switched to low-power charging, that is, low-power slow charging can be performed in the middle and later stages of charging.

[0044] In this optional embodiment, since the first power demand value is dynamic, the energy storage system can automatically shut down or reduce its output as the vehicle's charging power decreases in real time. Compared to energy storage scheduling methods with fixed time periods or fixed power, this energy storage system scheduling scheme based on the first power demand value can more precisely match the actual load margin of the transformer throughout the entire charging cycle, which helps to reduce unnecessary charge and discharge cycles of the energy storage system.

[0045] In this optional embodiment, the determination of whether the first power demand value exceeds the second load information specifically involves determining whether the load value of the transformer in the second load information is greater than a preset load threshold (e.g., 80% of the maximum load), and determining whether the output power value required for the first power demand value is greater than the current transformer output power.

[0046] In this optional embodiment, the second charge information includes the current SOC (State of Charge, which refers to the percentage of the current remaining battery capacity in the energy storage system relative to its total capacity). Correspondingly, the third threshold can be set to 20%, which corresponds to a 20% percentage of the current remaining battery capacity in the energy storage system relative to its total capacity.

[0047] As can be seen, in this optional embodiment, by simultaneously determining whether "the first power demand value exceeds the transformer's load capacity" and "whether the energy storage charge is higher than the third threshold (e.g., SOC>20%)", the energy storage system only participates in power supply when the vehicle's power demand exceeds the transformer's load capacity and the energy storage itself has sufficient charge. This avoids the energy storage system from deep discharge due to low charge and also prevents the transformer from needlessly calling on the energy storage system when under light load, thus achieving precise power supply from the energy storage system.

[0048] In another optional embodiment, the method by which the power supply management system performs a second charging operation on the powered equipment based on the charging load information specifically includes: The charging system obtains the first power output range corresponding to the energy storage system and the second charge information; The charging system calculates the first response power value and the second response power value of the charging system and the energy storage system in coordination to respond to the first power demand value based on the first power demand value, the second load information and the first power output range; The charging system generates a target control command for the second response power value and transmits the target control command to the energy storage system; the energy storage system updates its output power to the second response power value according to the target control command. The charging system performs a second charging operation on the powered device in coordination with the energy storage system in accordance with the first response power value and the energy storage system in accordance with the second response power value.

[0049] In this optional embodiment, the energy storage system includes a rated power output. However, in practical applications, the output power of the energy storage system should be adjusted according to different SOCs in order to improve the power supply stability and security of the energy storage system. The first power output range is the power output range determined in real time based on the current SOC of the energy storage system.

[0050] In this optional embodiment, by dynamically determining the first power output range, the energy storage system automatically limits its maximum output power at low SOC (e.g., close to the 20% threshold) to avoid battery life degradation or power instability due to over-discharge; while at high SOC, it can release more power. Unlike energy storage control methods with fixed power output, this dynamic power adjustment mechanism for the energy storage system dynamically binds the system's safe operating boundary to its real-time state of charge, improving the reliability and lifespan of the energy storage system in multi-cycle charge-discharge scenarios without adding additional battery management hardware.

[0051] In this optional embodiment, the calculated first and second response power values ​​integrate information such as the first power demand value, the second load information, and the first power output range, achieving optimal power allocation under multiple constraints. Specifically, the charging system prioritizes utilizing the available transformer capacity, with any shortfall supplemented by the energy storage system according to its real-time output capacity. Unlike conventional solutions that simply switch between master and slave systems or share power in a fixed ratio, this calculation mechanism for the two response power values ​​can automatically adapt to changes in transformer load margin and energy storage output capacity, improving the accuracy of power allocation between the two systems.

[0052] In this optional embodiment, it should be noted that in practical applications, the charging system and the energy storage system are physically decoupled (they can be deployed independently) but coordinated in control (through command synchronization). This allows the energy storage system to participate in power supply without needing complex charging logic judgment capabilities; it only needs to respond to power commands. This reduces the control complexity of the energy storage system and improves the modular integration convenience when expanding the energy supply management system.

[0053] In this optional embodiment, for the case where the charging system and energy storage system work together to provide power, please refer to [link to relevant documentation]. Figure 5 , Figure 5 This is a schematic diagram of another energy supply management system disclosed in an embodiment of the present invention, as shown below. Figure 5 As shown, when the charging system detects that its corresponding transformer capacity is insufficient and the vehicle's power input demand cannot be met, it notifies the energy storage system to connect via the CAN channel. Figure 5 The channel corresponding to C3 in the middle is used to combine the corresponding DC-DC converters in the charging system and the energy storage system to supply power to the receiving device.

[0054] In this optional embodiment, the charging system / energy storage system can be configured with a dedicated national standard charging gun or a dedicated output interface. Under normal conditions, the two systems can charge the powered equipment independently through the dedicated national standard charging gun or dedicated output interface. In special cases, such as when the transformer load of the charging system is too high and does not meet the power input requirements of the vehicle, the C3 channel can be connected to merge the power supply paths of the two systems. After calculating the first response power value and the second response power value, the charging system transmits the target control command corresponding to the second response power value to the energy storage system through the communication channel between the two systems. The energy storage system updates its output power to the second response power value according to the target control command, and finally realizes the dual-system coordinated power supply.

[0055] As can be seen, in this optional embodiment, by dynamically determining the first power output range of the energy storage system based on its current State of Charge (SOC), and combining the first power demand value with the second load information of the transformer, the response power values ​​undertaken by the charging system and the energy storage system are calculated collaboratively. Finally, the charging system sends independent control commands to the energy storage system, enabling both to synchronously supply power to the receiving equipment according to their allocated values. This achieves a secure binding between the energy storage system's output power and its own State of Charge, a dynamic optimal match between the transformer capacity and vehicle demand, and decoupled collaborative control between heterogeneous energy devices. While ensuring the lifespan of energy storage and power supply safety, it greatly improves the instantaneous response capability and expansion flexibility of the charging system.

[0056] In another optional embodiment, the charging condition includes a second charging condition, and when the charging condition is the second charging condition, the main energy supply system of the energy supply management system is only the energy storage system, that is, the case where the energy storage system is independently powered; the charging load information includes the third charge information of the energy storage system, which is similar to the second charge information and is distinguished from it, and is used to refer to the SOC of the energy storage system when it is independently powered. The method for determining whether the power supply control conditions for the energy storage system are met based on the charging load information in step 104 above specifically includes: The energy storage system determines whether the third charge information is greater than the fourth threshold, and obtains the fourth threshold judgment result. When the fourth threshold judgment result is yes, the energy storage system reads the second power demand value corresponding to the current charging operation performed on the powered equipment. The energy storage system determines whether its current allowable output power matches the second power demand value, thus obtaining the second load judgment result. Specifically, when the fourth threshold judgment result is negative, or when the second load judgment result is negative, it is determined that the current power supply control conditions for the energy storage system are not met. When the result of the fourth threshold judgment is yes, it is determined that the current power supply control conditions for the energy storage system are met.

[0057] In this optional embodiment, an alternative power supply management process, distinct from the first charging condition, is provided. In the first charging condition, the charging system acts as the primary power source, while intelligently connecting to the energy storage system for power supply based on the real-time load of the charging system and the power requirements of the receiving equipment. In contrast, the second charging condition involves the energy storage system providing power independently. This process focuses on monitoring at least two data points: third-party charge information and the current allowable output power of the energy storage system, to prevent over-discharge of the energy storage system.

[0058] In this optional embodiment, the fourth threshold can be set to 25%. Correspondingly, when the SOC of the energy storage system itself is greater than 25%, one condition for supplying power to the powered device is met. Further, when the allowable output power of the energy storage system matches the second power demand value of the powered device, another condition for supplying power to the powered device is determined to be met. Only when both conditions are met will the energy storage system respond to the charging demand of the powered device.

[0059] In this optional embodiment, the determination of the fourth threshold realizes the protection of the power boundary, which can effectively prevent the energy storage system from shortening its cycle life due to deep discharge; the determination of the matching between the allowed output power and the second power demand value realizes the protection of the power boundary, which can effectively prevent the energy storage system from forcibly carrying the load when the power output capacity is insufficient, causing voltage drop or system protection shutdown.

[0060] As can be seen, in this optional embodiment, under the second charging condition where the energy storage system is the main power supply system, by jointly judging whether the energy storage's state of charge is higher than the fourth threshold and whether the current allowed output power of the energy storage is compatible with the power demand of the powered equipment, dual safety access and layered over-discharge protection are achieved in the independent power supply scenario of the energy storage system. That is, by setting up a control process for the independent power supply of the energy storage system, power supply is only responded to when the energy storage simultaneously meets the two conditions of "sufficient power" and "power capability matching", avoiding unstable power supply or over-discharge of the energy storage system caused by inflated power, aging, or environmental factors. At the same time, a different control process from the first charging condition is set up, improving the power supply safety and reliability in the independent power supply scenario of the energy storage system.

[0061] In another optional embodiment, the method by which the power supply management system performs a second charging operation on the powered equipment based on the charging load information specifically includes: The energy storage system obtains the second power output range corresponding to the third charge information of the energy storage system. The energy storage system calculates the third response power value in response to the second power demand value based on the second power demand value, the third charge information, and the second power output range. The energy storage system updates its output power to the third response power value and performs a second charging operation on the powered equipment according to the third response power value.

[0062] In this optional embodiment, for the case where the energy storage system is powered independently, please refer to [link to relevant documentation]. Figure 5 The C2 channel, corresponding to the above description, allows the energy storage system to be equipped with a dedicated national standard charging gun or a dedicated output interface to charge the receiving equipment.

[0063] In this optional embodiment, when the energy storage system is supplying power independently, its output power is not simply the minimum of the demand value and the rated value, but is limited by the power output capability boundary allowed by the current SOC. For example, when the SOC is low (e.g., slightly above 25%), the second power output range automatically narrows, and even if the powered device requires a large power, the energy storage system will actively limit its output power. This achieves self-limiting protection in independent power supply scenarios, avoiding voltage drops or battery damage caused by high-power discharge at low SOC.

[0064] In this optional embodiment, the calculation of the third response power value comprehensively considers the second power output range and the second power demand value, ensuring that the calculated third response power value can meet the power demand of the powered equipment as much as possible without exceeding the self-limiting boundary of the energy storage system. Compared with traditional power supply methods with fixed power output or simple on / off control, the dynamic calculation mechanism of this third response power value enables the energy storage system to achieve continuous and smooth response of output power in independent power supply scenarios, reducing the electrical impact on the energy storage battery and powered equipment caused by power fluctuations.

[0065] As can be seen, in this optional embodiment, under the second charging condition where the energy storage system is independently powered, the energy storage system dynamically determines the second power output range based on its current SOC, and calculates the third response power value based on this range and the power demand of the powered equipment, thereby autonomously updating the output power to perform charging. This achieves power self-limiting protection (avoiding damage from high-power discharge at low SOC) and smooth power output (reducing electrical shock) when the energy storage system is independently powered, improving the response quality and reliability in independent power supply scenarios while ensuring the safety of the energy storage system.

[0066] Example 2 Please see Figure 2 , Figure 2 This is a flowchart illustrating another method for expanding and managing an energy storage system and a charging system disclosed in an embodiment of the present invention. Figure 2 The described expansion and management method for energy storage and charging systems can be applied to energy supply management systems, which include both energy storage and charging systems; however, this invention does not limit the scope of the method. Figure 2 As shown, the expansion and management method for the energy storage system and charging system may include the following operations: 201. The charging system detects the system operating conditions of the power supply management system, including standby or charging conditions.

[0067] 202. When the system is in standby mode, the charging system obtains the standby information of the energy storage system and the charging system, and determines whether the first charge information is lower than the first threshold, and obtains the first threshold judgment result.

[0068] In this embodiment of the invention, the standby information includes first charge information of the energy storage system and first load information of the transformer in the charging system. The first charge information refers to the current SOC value of the energy storage system; the first load information indicates the current load status of the transformer.

[0069] In this embodiment of the invention, the first threshold can be set to 20%, that is, if the SOC of the energy storage system is less than 20%, it indicates that the current remaining energy of the energy storage system is too low.

[0070] 203. Determine whether the first load information is lower than the second threshold, and obtain the second threshold judgment result.

[0071] In this embodiment of the invention, the second threshold can be set to 90% or 85%. That is, if the transformer load of the charging system exceeds 90% or 85% of the maximum load, it indicates that the transformer is overloaded; otherwise, it indicates that the transformer is not overloaded and can provide power to the energy storage system during off-peak hours. Optionally, the energy storage system is preferentially charged during off-peak hours.

[0072] 204. When both the first threshold judgment result and the second threshold judgment result are yes, it is determined that the standby information indicates that the standby charging condition is met; when at least one of the first threshold judgment result and the second threshold judgment result is no, it is determined that the standby information indicates that the standby charging condition is not met.

[0073] In this embodiment of the invention, the standby charging condition is determined to be met only when the first charge information is lower than the first threshold (corresponding to the energy storage system having too low a current remaining energy) and the first load information is lower than the second threshold (corresponding to the transformer having spare capacity to charge the energy storage system). That is, the satisfaction of the standby charging condition is used to determine whether the transformer of the charging system has spare capacity to provide idle power to the energy storage system under standby conditions.

[0074] 205. When it is determined that the standby information indicates that the standby charging conditions are met, the first charging operation is performed on the energy storage system to respond to the charging needs of the energy storage system under standby conditions.

[0075] 206. When the system is in charging mode, the charging system obtains the charging load information of the energy storage system and the charging system, and determines whether the power supply control conditions for the energy storage system are met based on the charging load information.

[0076] 207. When it is determined that the current power supply control conditions for the energy storage system are met, the power supply management system shall perform a second charging operation on the powered equipment according to the charging load information in order to respond to the power supply demand of the powered equipment.

[0077] In this embodiment of the invention, for other descriptions of steps 201-202 and steps 205-207, please refer to the other specific descriptions of steps 101-102 and steps 103-105 in Embodiment 1. These descriptions will not be repeated in this embodiment of the invention.

[0078] It is evident that implementation Figure 2The described expansion and control method for energy storage and charging systems, under standby conditions, achieves off-peak energy replenishment of the energy storage system (avoiding transformer overload risk) by jointly determining that the SOC of the energy storage system is below a first threshold and the transformer load is below a second threshold. While ensuring the safe operation of the transformer, this method optimizes the timing of energy replenishment under standby conditions, improving the response accuracy and safety of off-peak energy storage system replenishment.

[0079] In an optional embodiment, the method by which step 103 performs the first charging operation on the energy storage system specifically includes: All charging methods of the energy storage system are obtained from the charging system. The charging methods include any one of the following: the first charging method based on the charging system, the second charging method based on external energy, and the third charging method based on the charging system and external energy working together; the external energy includes photovoltaic energy or wind power. The charging system determines the target charging method from all charging methods based on the remaining energy of the charging system and the power supply of the external energy source, and performs the first charging operation on the energy storage system according to the target charging method.

[0080] In this optional embodiment, for the charging path corresponding to the charging system performing the first charging operation on the energy storage system according to the target charging method, please refer to [link to relevant documentation]. Figure 5 The A1 and B1 channels are defined as follows: When the charging system needs charging, it obtains electrical energy from the grid through channel A1 to charge the powered equipment; when the energy storage system detects a need for replenishment, the charging system outputs power through channel B1 to charge the energy storage batteries in the energy storage system. The charging system can reuse existing charging modules using a standard charging gun, eliminating the need for a pre-installed power supply system (PCS), thus reducing hardware modifications, lowering hardware costs, and improving the overall practicality of the energy supply management system.

[0081] In this optional embodiment, such as Figure 5 As shown, the charging system can be configured with an independent DC-DC module and a corresponding independent control system. Figure 5 (Central charging controller), based on Figure 5 The structure allows the charging system to independently charge the receiving equipment even when the power grid is down, providing both off-grid operation capability and high fault tolerance.

[0082] In this optional embodiment, when an external power source is required for charging, it can be done through... Figure 5The A3 and B2 channels in the energy storage system are used for communication. The DC-DC converter in the energy storage system connects to the external energy source through the A3 channel. After energy and voltage conversion, the adapted voltage is transmitted to the energy storage battery through the B2 channel to charge it. During the charging process of the charging system and the energy storage system, communication and control can be achieved through the communication channel between the two systems.

[0083] In this optional embodiment, it should be noted that since the charging system and the energy storage system are physically decoupled, especially the energy storage system, which can be set as a mobile energy storage system, when the charging system of other grid stations has a temporary scheduling need (such as a failure), the energy storage system can be moved to the corresponding grid station to achieve temporary power supply assistance. Based on this mobility, dynamic and elastic expansion of the charging system corresponding to multiple grid stations can be realized.

[0084] As can be seen, in this optional embodiment, under standby conditions, the charging system can dynamically assess its own available capacity and the real-time power generation capacity of renewable energy, and can be set to prioritize the use of external energy sources such as photovoltaic and wind power to charge the energy storage (such as selecting the second or third charging method when the external energy supply is sufficient), thereby reducing the energy storage system's dependence on the power grid or the charging system transformer and achieving energy efficiency optimization in the standby energy replenishment stage.

[0085] Example 3 Please see Figure 3 , Figure 3 This is a schematic diagram of a power supply management system disclosed in an embodiment of the present invention. The embodiments of the present invention are not limited thereto. Figure 3 As shown, the energy supply management system 30 may include an energy storage system 301 and a charging system 302. Further, the charging system 302 includes a detection module 3021, an acquisition module 3022, a first judgment module 3023, a charging module 3024, and a second judgment module 3025, wherein: The detection module 3021 is used to detect the system operating conditions of the power supply management system 30, including standby or charging conditions.

[0086] The acquisition module 3022 is used to acquire the standby information of the energy storage system 301 and the charging system 302 when the system is in standby mode.

[0087] The first judgment module 3023 is used to determine whether the standby information indicates that the standby charging conditions are met.

[0088] The charging module 3024 is used to perform a first charging operation on the energy storage system 301 when the first judgment module 3023 determines that the standby information indicates that the standby charging conditions are met, so as to respond to the charging needs of the energy storage system 301 in the standby condition.

[0089] The acquisition module 3022 is also used to acquire the charging load information of the energy storage system 301 and the charging system 302 when the system is in charging mode.

[0090] The second judgment module 3025 is used to determine whether the power supply control conditions for the energy storage system 301 are met based on the charging load information.

[0091] In addition, the power supply management system 30 is used to perform a second charging operation on the powered equipment according to the charging load information when the second judgment module 3025 determines that the power supply control conditions for the energy storage system 301 are met, so as to respond to the power supply demand of the powered equipment.

[0092] It is evident that implementation Figure 3 The described energy supply management system enables the charging system to automatically replenish the energy storage system in standby mode and dynamically call upon the energy storage system to supply power to the receiving equipment based on load information during charging mode. This achieves flexible switching and integration of the charging system's two functions: "charging the vehicle" and "replenishing the energy storage." The energy storage replenishment mechanism in standby mode effectively eliminates energy attenuation during standby and ensures timely replenishment. The flexible power supply and dual-system collaborative power supply mechanism in charging mode can expand the system's functionality and adapt to energy storage access without increasing the number of charging devices, greatly improving the applicability and flexibility of the overall energy supply management system.

[0093] In an optional embodiment, the standby information includes the first charge information of the energy storage system 301 and the first load information of the transformer of the charging system 302; The first judgment module 3023 determines whether the standby information indicates that the standby charging conditions are met through the following methods: Determine whether the first charge information is lower than the first threshold, and obtain the first threshold determination result; Determine whether the first load information is lower than the second threshold, and obtain the second threshold determination result; When both the first threshold judgment result and the second threshold judgment result are yes, it is determined that the standby information indicates that the standby charging condition is met; when at least one of the first threshold judgment result and the second threshold judgment result is no, it is determined that the standby information indicates that the standby charging condition is not met.

[0094] As can be seen, in this optional embodiment, under standby conditions, by jointly determining that the SOC of the energy storage system is lower than a first threshold and the transformer load is lower than a second threshold, idle-time energy replenishment of the energy storage system is achieved (avoiding the risk of transformer overload). While ensuring the safe operation of the transformer, the timing of energy replenishment under standby conditions is optimized, improving the response accuracy and safety of idle-time energy storage system replenishment.

[0095] In another optional embodiment, the charging condition includes a first charging condition, and when the charging condition is the first charging condition, the main power supply system of the power supply management system 30 includes the charging system 302, and the charging load information includes the second load information of the transformer of the charging system 302. The second judgment module 3025 determines whether the current power supply control conditions for the energy storage system 301 are met based on the charging load information in the following ways: The charging system 302 reads the first power demand value corresponding to the current charging operation performed on the powered device; The charging system 302 determines whether the first power demand value exceeds the second load information, and obtains the first load determination result. When the first load judgment result is yes, the charging system 302 judges whether the second charge information of the energy storage system 301 is greater than the third threshold, and obtains the third threshold judgment result. Specifically, if the first load judgment result is negative, or if the third threshold judgment result is negative, it is determined that the current power supply control conditions for the energy storage system 301 are not met. When the result of the third threshold judgment is yes, it is determined that the current power supply control conditions for the energy storage system 301 are met.

[0096] As can be seen, in this optional embodiment, In yet another optional embodiment, the power supply management system 30 performs a second charging operation on the powered equipment based on the charging load information in the following specific ways: The charging system 302 obtains the first power output range corresponding to the energy storage system 301 and the second charge information; Based on the first power demand value, the second load information, and the first power output range, the charging system 302 calculates the first response power value and the second response power value of the charging system 302 and the energy storage system 301 in a coordinated response to the first power demand value. The charging system 302 generates a target control command for the second response power value and transmits the target control command to the energy storage system 301; the energy storage system 301 updates its output power to the second response power value according to the target control command. The charging system 302 performs a second charging operation on the powered device in coordination with the energy storage system 301 in accordance with the first response power value and the energy storage system 301 in accordance with the second response power value.

[0097] As can be seen, in this optional embodiment, by simultaneously determining whether "the first power demand value exceeds the transformer's load capacity" and "whether the energy storage charge is higher than the third threshold (e.g., SOC>20%)", the energy storage system only participates in power supply when the vehicle's power demand exceeds the transformer's load capacity and the energy storage itself has sufficient charge. This avoids the energy storage system from deep discharge due to low charge and also prevents the transformer from needlessly calling on the energy storage system when under light load, thus achieving precise power supply from the energy storage system.

[0098] In another optional embodiment, the charging condition includes a second charging condition, and when the charging condition is the second charging condition, the main energy supply system of the energy supply management system 30 is only the energy storage system 301; the charging load information includes the third charge information of the energy storage system 301. The second judgment module 3025 determines whether the current power supply control conditions for the energy storage system 301 are met based on the charging load information in the following ways: The energy storage system 301 determines whether the third charge information is greater than the fourth threshold, and obtains the fourth threshold judgment result. When the fourth threshold judgment result is yes, the energy storage system 301 reads the second power demand value corresponding to the current charging operation performed on the powered equipment. The energy storage system 301 determines whether its current allowable output power matches the second power demand value, and obtains the second load judgment result. Specifically, when the fourth threshold judgment result is negative, or when the second load judgment result is negative, it is determined that the current power supply control conditions for the energy storage system 301 are not met. When the result of the fourth threshold judgment is yes, it is determined that the current power supply control conditions for the energy storage system 301 are met.

[0099] As can be seen, in this optional embodiment, under the second charging condition where the energy storage system is the main power supply system, by jointly judging whether the energy storage's state of charge is higher than the fourth threshold and whether the current allowed output power of the energy storage is compatible with the power demand of the powered equipment, dual safety access and layered over-discharge protection are achieved in the independent power supply scenario of the energy storage system. That is, by setting up a control process for the independent power supply of the energy storage system, power supply is only responded to when the energy storage simultaneously meets the two conditions of "sufficient power" and "power capability matching", avoiding unstable power supply or over-discharge of the energy storage system caused by inflated power, aging, or environmental factors. At the same time, a different control process from the first charging condition is set up, improving the power supply safety and reliability in the independent power supply scenario of the energy storage system.

[0100] In yet another optional embodiment, the power supply management system 30 performs a second charging operation on the powered equipment based on the charging load information in the following specific ways: The second power output range corresponding to the third charge information is obtained from the energy storage system 301; The energy storage system 301 calculates the third response power value in response to the second power demand value based on the second power demand value, the third charge information, and the second power output range. The energy storage system 301 updates its output power to the third response power value and performs a second charging operation on the powered device according to the third response power value.

[0101] As can be seen, in this optional embodiment, under the second charging condition where the energy storage system is independently powered, the energy storage system dynamically determines the second power output range based on its current SOC, and calculates the third response power value based on this range and the power demand of the powered equipment, thereby autonomously updating the output power to perform charging. This achieves power self-limiting protection (avoiding damage from high-power discharge at low SOC) and smooth power output (reducing electrical shock) when the energy storage system is independently powered, improving the response quality and reliability in independent power supply scenarios while ensuring the safety of the energy storage system.

[0102] In another optional embodiment, the charging module 3024 performs the first charging operation on the energy storage system 301 in the following specific ways: All charging methods of the energy storage system 301 are obtained by the charging system 302. The charging methods include any one of the following: a first charging method based on the charging system 302, a second charging method based on external energy, and a third charging method based on the charging system 302 and external energy working together; the external energy includes photovoltaic energy or wind power. The charging system 302 determines the target charging mode from all charging modes based on the remaining energy of the charging system 302 and the power supply of the external energy source, and performs the first charging operation on the energy storage system 301 according to the target charging mode.

[0103] As can be seen, in this optional embodiment, under standby conditions, the charging system can dynamically assess its own available capacity and the real-time power generation capacity of renewable energy, and can be set to prioritize the use of external energy sources such as photovoltaic and wind power to charge the energy storage (such as selecting the second or third charging method when the external energy supply is sufficient), thereby reducing the energy storage system's dependence on the power grid or the charging system transformer and achieving energy efficiency optimization in the standby energy replenishment stage.

[0104] Example 4 Please see Figure 4 , Figure 4 This is a structural schematic diagram of an expansion and control device for an energy storage system and a charging system disclosed in an embodiment of the present invention. Figure 4 As shown, the expansion and control device for the energy storage system and charging system may include: Memory 401 storing executable program code; Processor 402 coupled to memory 401; The processor 402 calls the executable program code stored in the memory 401 to execute some or all of the steps in any of the expansion control methods for energy storage systems and charging systems described in Embodiment 1 or Embodiment 2 of the present invention.

[0105] Example 5 This invention discloses a computer storage medium storing computer instructions. When these computer instructions are invoked, they are used to execute some or all of the steps in any of the expansion and control methods for energy storage systems and charging systems described in Embodiment 1 or Embodiment 2 of this invention.

[0106] The device embodiments described above are merely illustrative. The modules described as separate components may or may not be physically separate. The components shown as modules may or may not be physical modules; that is, they may be located in one place or distributed across multiple network modules. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0107] Through the detailed description of the above embodiments, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, including read-only memory (ROM), random access memory (RAM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), one-time programmable read-only memory (OTPROM), electrically-Erasable Programmable Read-Only Memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical disc storage, disk storage, magnetic tape storage, or any other computer-readable medium that can be used to carry or store data.

[0108] Finally, it should be noted that the above embodiments are merely preferred embodiments of the present invention and are only used to illustrate the technical solutions of the present invention, not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for expanding and managing the capacity of an energy storage system and a charging system, characterized in that, The method is applied to an energy supply management system, the energy supply management system including the energy storage system and the charging system, and the method includes: The charging system detects the system operating condition of the power supply management system, and the system operating condition includes standby condition or charging condition. When the system is in standby mode, the charging system obtains the standby information of the energy storage system and the charging system, and determines whether the standby information indicates that the standby charging conditions are met. When it is determined that the standby information indicates that the standby charging conditions are met, the first charging operation is performed on the energy storage system to respond to the charging needs of the energy storage system in the standby mode. When the system is in the charging state, the charging system acquires the charging load information of the energy storage system and the charging system, and determines whether the power supply control conditions for the energy storage system are met based on the charging load information. When it is determined that the power supply control conditions for the energy storage system are met, the power supply management system performs a second charging operation on the powered device based on the charging load information to respond to the power supply demand of the powered device.

2. The expansion and management method for energy storage systems and charging systems according to claim 1, characterized in that, The standby information includes the first charge information of the energy storage system and the first load information of the transformer of the charging system. The step of determining whether the standby information indicates that the standby charging conditions are met includes: Determine whether the first charge information is lower than a first threshold, and obtain the first threshold determination result; Determine whether the first load information is lower than the second threshold, and obtain the second threshold determination result; When both the first threshold judgment result and the second threshold judgment result are yes, it is determined that the standby information indicates that the standby charging condition is met; when at least one of the first threshold judgment result and the second threshold judgment result is no, it is determined that the standby information indicates that the standby charging condition is not met.

3. The expansion and management method for energy storage systems and charging systems according to claim 1, characterized in that, The charging conditions include a first charging condition, and when the charging condition is the first charging condition, the main power supply system of the power supply management system includes the charging system, and the charging load information includes the second load information of the transformer of the charging system. The step of determining whether the power supply control conditions for the energy storage system are currently met based on the charging load information includes: The charging system reads the first power demand value corresponding to the current charging operation performed on the powered device; The charging system determines whether the first power demand value exceeds the second load information, and obtains the first load determination result; When the first load judgment result is yes, the charging system determines whether the second charge information of the energy storage system is greater than the third threshold, and obtains the third threshold judgment result. Specifically, when the first load judgment result is negative, or when the third threshold judgment result is negative, it is determined that the current power supply control conditions for the energy storage system are not met. When the result of the third threshold determination is yes, it is determined that the current power supply control conditions for the energy storage system are met.

4. The expansion and management method for energy storage systems and charging systems according to claim 3, characterized in that, The second charging operation performed by the power supply management system on the powered equipment based on the charging load information includes: The charging system obtains the first power output range corresponding to the energy storage system and the second charge information; The charging system calculates a first response power value and a second response power value for the coordinated response of the charging system and the energy storage system to the first power demand value based on the first power demand value, the second load information, and the first power output range. The charging system generates a target control command for the second response power value and transmits the target control command to the energy storage system; the energy storage system updates its output power to the second response power value according to the target control command. The charging system performs a second charging operation on the powered device in coordination with the energy storage system in accordance with the first response power value and the second response power value.

5. The expansion and management method for energy storage systems and charging systems according to claim 1, characterized in that, The charging conditions include a second charging condition, and when the charging condition is the second charging condition, the main energy supply system of the energy supply management system is only the energy storage system; the charging load information includes the third charge information of the energy storage system. The step of determining whether the power supply control conditions for the energy storage system are currently met based on the charging load information includes: The energy storage system determines whether the third charge information is greater than the fourth threshold, and obtains the fourth threshold determination result; When the fourth threshold determination result is yes, the energy storage system reads the second power demand value corresponding to the current charging operation performed on the powered device. The energy storage system determines whether its current allowable output power matches the second power demand value, thus obtaining the second load determination result. Specifically, when the fourth threshold judgment result is negative, or when the second load judgment result is negative, it is determined that the current power supply control conditions for the energy storage system are not met. When the result of the fourth threshold determination is yes, it is determined that the current power supply control conditions for the energy storage system are met.

6. The expansion and management method for energy storage systems and charging systems according to claim 5, characterized in that, The second charging operation performed by the power supply management system on the powered equipment based on the charging load information includes: The energy storage system obtains the second power output range corresponding to the third charge information; The energy storage system calculates a third response power value in response to the second power demand value based on the second power demand value, the third charge information, and the second power output range. The energy storage system updates its output power to the third response power value and performs a second charging operation on the powered device according to the third response power value.

7. The expansion and management method for energy storage systems and charging systems according to claim 2, characterized in that, The first charging operation on the energy storage system includes: The charging system acquires all charging methods of the energy storage system, including any one of the following: a first charging method based on the charging system, a second charging method based on external energy, and a third charging method based on the charging system and the external energy working together; the external energy includes photovoltaic energy or wind power. The charging system determines a target charging mode from all the charging modes based on the remaining energy of the charging system and the power supply of the external energy source, and performs a first charging operation on the energy storage system according to the target charging mode.

8. An energy supply management system, characterized in that, The energy supply management system includes the energy storage system and the charging system, wherein the charging system includes: The detection module is used to detect the system operating conditions of the power supply management system, including standby or charging conditions. The acquisition module is used to acquire the standby information of the energy storage system and the charging system when the system is in the standby state. The first judgment module is used to determine whether the standby information indicates that the standby charging conditions are met; A charging module is used to perform a first charging operation on the energy storage system when the first judgment module determines that the standby information indicates that the standby charging conditions are met, in order to respond to the charging needs of the energy storage system under the standby condition. The acquisition module is further configured to acquire charging load information of the energy storage system and the charging system when the system operating condition is the charging operating condition; The second judgment module is used to determine whether the power supply control conditions for the energy storage system are met based on the charging load information. The energy supply management system is used to perform a second charging operation on the powered device according to the charging load information when the second judgment module determines that the current power supply control conditions for the energy storage system are met, in order to respond to the power supply demand of the powered device.

9. A capacity expansion and control device for an energy storage system and a charging system, characterized in that, The device includes: Memory containing executable program code; A processor coupled to the memory; The processor calls the executable program code stored in the memory to execute the capacity expansion and control method for the energy storage system and charging system as described in any one of claims 1-7.

10. A computer storage medium, characterized in that, The computer storage medium stores computer instructions, which, when invoked, are used to execute the capacity expansion and control method for the energy storage system and charging system as described in any one of claims 1-7.

Images