Power distribution method and apparatus, energy storage power station, and storage medium

Abstract

The present application relates to a power distribution method and apparatus, an energy storage system, and a storage medium. The method comprises: acquiring the total power of an energy storage system and current demand powers of a plurality of grid-connected systems; obtaining dispatched powers of corresponding grid-connected systems on the basis of the total power and the current demand powers; detecting operation parameter data of the grid-connected systems, and processing the dispatched powers on the basis of the operation parameter data to obtain optimized dispatched powers; and charging and discharging the corresponding grid-connected systems on the basis of the optimized dispatched powers.

Description

Power distribution method, device, energy storage station and storage medium

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on February 20, 2024, with application number 2024101903362. The entire contents of the above application are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of energy storage technology, and in particular to a power distribution method, device, energy storage power station, and storage medium. Background Art

[0003] The energy management system (EMS) is the decision-making center of the electrochemical energy storage power station. In the energy storage system, the EMS can be used to distribute power to all grid-connected systems in the site.

[0004] In related technologies, there are situations where power distribution is unbalanced and charging and discharging between batteries is unbalanced. For example, directly distributing power evenly to each grid-connected system for charging and discharging can easily lead to overcharging or over-discharging of the battery, reducing the operating stability of the energy storage system and increasing operating costs. Technical issues

[0005] The present application provides a power distribution method, device, energy storage power station and storage medium that can balance power distribution and battery usage, avoid battery overcharging or over-discharging, ensure stable operation of energy storage power stations, and reduce costs. Technical Solutions

[0006] In a first aspect, an embodiment of the present application provides a power allocation method, comprising the following steps:

[0007] Obtain the total power of the energy storage system and the current power requirements of multiple grid-connected systems;

[0008] According to the total power and the current power demand, the power delivered by each corresponding grid-connected system is obtained;

[0009] Detect the operating parameter data of each grid-connected system, process the power distribution according to the operating parameter data, and obtain the optimized power distribution;

[0010] Based on the optimized power distribution, the corresponding grid-connected system is charged and discharged.

[0011] In a second aspect, the present application provides a power distribution device, comprising:

[0012] A power acquisition unit, used to obtain the total power of the energy storage system and the current power requirements of multiple grid-connected systems;

[0013] The power distribution unit is used to obtain the power delivered by each corresponding grid-connected system based on the total power and the current power demand;

[0014] The power optimization unit is used to detect the operating parameter data of each grid-connected system, process each transmitted power according to each operating parameter data, and obtain each optimized transmitted power;

[0015] The power delivery unit is used to charge and discharge the corresponding grid-connected system based on the optimized delivered power.

[0016] In a third aspect, the present application provides an energy storage power station, including an energy storage system and various grid-connected systems. The energy storage system is provided with an energy management system, which is respectively connected to each grid-connected system. The energy management system is used to execute the steps of any of the above-mentioned power distribution methods.

[0017] In a fourth aspect, the present application provides a computer-readable storage medium having a computer program stored thereon, which implements the steps of any one of the above-mentioned power allocation methods when the computer program is executed by a processor. Beneficial effects

[0018] The beneficial effects of the present application are as follows: in the above-mentioned power distribution method, by obtaining the total power of the energy storage system and the current power demand of multiple grid-connected systems; according to the total power and each current power demand, the power dispatched by each corresponding grid-connected system is obtained; the operating parameter data of each grid-connected system is detected, and according to each operating parameter data, each dispatched power is processed to obtain each optimized dispatched power; based on each optimized dispatched power, the corresponding grid-connected system is charged and discharged to achieve balanced power distribution for each grid-connected system. The present application distributes the dispatched power according to the current power demand of each grid-connected system, and after allocating the dispatched power of each grid-connected system, the operating parameter data of each grid-connected system is detected to adjust the dispatched power to achieve optimization of the dispatched power, thereby charging and discharging the corresponding grid-connected system based on the optimized dispatched power, achieving balanced power distribution and balanced battery use, avoiding overcharging or over-discharging of batteries in the energy storage system, ensuring stable operation of the energy storage power station, and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] FIG1 is a schematic diagram of an application scenario of a power allocation method according to an embodiment of the present application;

[0020] FIG2 is a schematic diagram of a first flow chart of a power distribution method according to an embodiment of the present application;

[0021] FIG3 is a flow chart of temperature data processing steps in an embodiment of the present application;

[0022] FIG4 is a flow chart of the voltage data processing steps in an embodiment of the present application;

[0023] FIG5 is a flow chart of the SOC data processing steps in an embodiment of the present application;

[0024] FIG6 is a flow chart of the power processing steps in an embodiment of the present application;

[0025] FIG7 is a block diagram of a power distribution device according to an embodiment of the present application;

[0026] FIG8 is a schematic structural diagram of an energy storage power station in an embodiment of the present application. Modes for Carrying Out the Invention

[0027] The power allocation method provided in the present application can be applied in the application environment shown in Figure 1. Among them, the processing device may include a processor 102 and a memory 104, and the memory 104 can be used to store data such as total power, current demand power, operating parameter data, and optimized power transmission. The processor 102 can be used to obtain the total power of the energy storage system and the current demand power of multiple grid-connected systems; according to the total power and each current demand power, obtain the power transmission of each corresponding grid-connected system; detect the operating parameter data of each grid-connected system, and according to each operating parameter data, process each power transmission to obtain each optimized power transmission; based on each optimized power transmission, charge and discharge the corresponding grid-connected system. The processing device may also include a display 106, which can display data such as total power, current demand power, operating parameter data, and optimized power transmission through a graphical interface.

[0028] Exemplarily, the processing device may be an energy management system, which may be installed in an energy storage system. The energy storage system and each grid-connected system constitute an energy storage power station, and the energy management system is connected to each grid-connected system. In another example, the energy storage power station further includes a power storage converter (PCS), wherein a first end of the power storage converter is connected to the energy storage system, and a second end of the power storage converter is connected to each grid-connected system.

[0029] In one embodiment, as shown in FIG2 , a power allocation method is provided. The method is described by taking the application of the method to the processor 102 in FIG1 as an example, and includes the following steps:

[0030] Step S210: Obtain the total power of the energy storage system and the current power requirements of multiple grid-connected systems.

[0031] The total power of the energy storage system may be the total charging power or the total discharging power, and correspondingly, the current required power of the grid-connected system may be the current required charging power or the current required discharging power.

[0032] For example, when a power allocation request is received, the total power of the energy storage system is queried according to the power allocation request, thereby obtaining the total power of the energy storage system; power demand instructions can also be transmitted to each grid-connected system according to the power allocation request, and each grid-connected system then feeds back the corresponding current demand power according to the demand instruction, thereby obtaining the current demand power of each grid-connected system.

[0033] Step S220: Obtain the power delivered by each corresponding grid-connected system according to the total power and each currently required power.

[0034] The transmitted power may be the transmitted charging power or the transmitted discharging power.

[0035] According to the acquired total power and each currently required power, the total power and each currently required power are processed to obtain the power sent by each corresponding grid-connected system.

[0036] Step S230 , detecting the operating parameter data of each grid-connected system, and processing each transmitted power according to each operating parameter data to obtain each optimized transmitted power.

[0037] The operating parameters may include, but are not limited to, electrical parameters and environmental characteristic parameters.

[0038] For example, several sensor modules may be provided to detect operating parameters of corresponding grid-connected systems in real time, and the detected operating parameter data may be transmitted to a processor, which then acquires the operating parameter data of each corresponding grid-connected system.

[0039] The processor can optimize the power transmission according to the obtained operating parameter data. For example, a critical value can be set for the corresponding operating parameter. By comparing the operating parameter data with the corresponding critical value, the power transmission can be optimized and adjusted according to the result of the comparison, thereby obtaining the optimized power transmission corresponding to each grid-connected system.

[0040] Step S240: Based on the optimized transmitted power, the corresponding grid-connected system is charged and discharged.

[0041] For example, each optimized transmitted power is transmitted to the energy storage converter, and each grid-connected system is charged and discharged through the energy storage converter, so that the grid-connected system is charged and discharged according to the corresponding optimized transmitted power.

[0042] In the above embodiment, the total power of the energy storage system and the current power demand of multiple grid-connected systems are obtained; the power delivered by each corresponding grid-connected system is obtained according to the total power and each current power demand; the operating parameters of each grid-connected system are detected to obtain the operating parameter data of each corresponding grid-connected system; the power delivered is processed according to each operating parameter data to obtain each optimized power delivered; based on each optimized power delivered, each grid-connected system corresponding to the optimized power delivered is charged and discharged to achieve balanced power distribution for each grid-connected system. The present application allocates the power delivered according to the current power demand of each grid-connected system, and after allocating the power delivered to each grid-connected system, the operating parameter data of each grid-connected system is detected to adjust the power delivered, to achieve optimization of the power delivered, and thus charge and discharge the corresponding grid-connected system based on the optimized power delivered, to achieve balanced power distribution and balanced battery use, to avoid overcharging or over-discharging of batteries in the energy storage system, to ensure stable operation of the energy storage power station, and to reduce costs.

[0043] In one example, the step of obtaining the power delivered by each corresponding grid-connected system according to the total power and each currently required power includes:

[0044] According to each current power demand, the total power demand is obtained; according to each current power demand and the total power demand, the power demand ratio of each grid-connected system is obtained.

[0045] For example, a grid-connected system may include a battery management system (BMS) that transmits a power demand instruction to the BMS of each grid-connected system. The BMS of each grid-connected system then responds with a corresponding current power demand based on the demand instruction, thereby obtaining the current power demand of each grid-connected system. The total power demand is then accumulated, and the power demand ratio of the corresponding grid-connected system is obtained by dividing the current power demand by the total power demand. It should be noted that the current power demand may be the maximum power demand that can be charged or discharged by the corresponding grid-connected system.

[0046] In one example, the step of obtaining the power delivered by each corresponding grid-connected system according to the total power and each currently required power includes:

[0047] According to the total power and the ratio of each power demand, the power delivered by each corresponding grid-connected system is obtained.

[0048] By multiplying the power demand ratio of each grid-connected system by the total power, the power delivered by each corresponding grid-connected system is calculated. Furthermore, after allocating the power delivered to each grid-connected system, the operating parameters of each grid-connected system are detected to adjust the power delivered, optimizing the power delivered. Based on the optimized power delivered, the corresponding grid-connected system is charged and discharged, achieving balanced power distribution and battery usage. This prevents overcharging or over-discharging of batteries in the energy storage system, ensures stable operation of the energy storage power station, and reduces costs.

[0049] In one embodiment, the operating parameter data includes temperature data. As shown in FIG3 , the steps of processing each transmitted power according to each operating parameter data to obtain each optimized transmitted power include:

[0050] Step S310: When the temperature data does not fall within the temperature threshold range, the power sent corresponding to the temperature data not falling within the temperature threshold range is updated to 0.

[0051] For example, the temperature of the corresponding grid-connected system may be detected by a temperature sensor, thereby obtaining the temperature data of the corresponding grid-connected system.

[0052] By comparing the temperature data of each grid-connected system with the temperature threshold range, when the temperature data does not fall within the temperature threshold range, it is determined that the corresponding grid-connected system is in an over-temperature or under-temperature state, and then the power sent to the corresponding system whose temperature data does not fall within the temperature threshold range is updated to 0, that is, no power is sent to the grid-connected system whose temperature data does not fall within the temperature threshold range, thereby improving the safety and reliability of power distribution.

[0053] Step S320: When the temperature data falls within the temperature threshold range, the power transmitted corresponding to the temperature data falling within the temperature threshold range is maintained unchanged.

[0054] By comparing the temperature data of each grid-connected system with the temperature threshold range, when the temperature data falls within the temperature threshold range, it is determined that the temperature of the corresponding grid-connected system is in a safe state, and then the corresponding power distribution for the temperature data falling within the temperature threshold range is maintained unchanged, thereby optimizing the power distribution of each grid-connected system, and charging and discharging the corresponding grid-connected system based on the optimized power distribution, achieving balanced power distribution and balanced battery use, avoiding overcharging or over-discharging of batteries in the energy storage system, ensuring stable operation of the energy storage power station, and reducing costs.

[0055] In the above embodiment, by flexibly allocating the power of each grid-connected system, the energy management system has a higher level of intelligence. At the same time, without affecting the hardware performance of the energy management system, by improving the computing power of the energy management system, the energy storage system is ensured to operate stably and the operating costs are reduced.

[0056] In one embodiment, the operating parameter data further includes voltage data. As shown in FIG4 , the steps of processing each transmitted power according to each operating parameter data to obtain each optimized transmitted power include:

[0057] Step S410 : When the voltage data does not fall within the voltage threshold range, the transmitted power corresponding to the voltage data not falling within the voltage threshold range is updated to 0.

[0058] For example, the voltage of the corresponding grid-connected system may be detected by a voltage sensor, thereby obtaining voltage data of the corresponding grid-connected system.

[0059] By comparing the voltage data of each grid-connected system with the voltage threshold range, when the voltage data does not fall within the voltage threshold range, it is determined that the corresponding grid-connected system is in an overvoltage or undervoltage state, and then the corresponding power distribution whose voltage data does not fall within the voltage threshold range is updated to 0, that is, no power is distributed to the grid-connected system whose voltage data does not fall within the voltage threshold range, thereby further improving the safety and reliability of power distribution.

[0060] Step S420: When the voltage data falls within the voltage threshold range, the power transmitted corresponding to the voltage data falling within the voltage threshold range is maintained unchanged.

[0061] By comparing the voltage data of each grid-connected system with the voltage threshold range, when the voltage data falls within the voltage threshold range, it is determined that the voltage of the corresponding grid-connected system is in a safe state, and then the corresponding power distribution when the voltage data falls within the voltage threshold range is maintained unchanged, thereby optimizing the power distribution of each grid-connected system, and charging and discharging the corresponding grid-connected system based on the optimized power distribution, achieving balanced power distribution and balanced battery use, avoiding overcharging or over-discharging of batteries in the energy storage system, ensuring stable operation of the energy storage power station, and reducing costs.

[0062] In one embodiment, the operating parameter data further includes SOC (State of Charge) data. As shown in FIG5 , the steps of processing each transmitted power according to each operating parameter data to obtain each optimized transmitted power include:

[0063] Step S510 : When the SOC data does not fall within the SOC threshold range, the sending power corresponding to the SOC data not falling within the SOC threshold range is updated to 0.

[0064] For example, the SOC of the corresponding grid-connected system can be detected by the BMS, and the SOC data of the corresponding grid-connected system can be obtained.

[0065] By comparing the SOC data of each grid-connected system with the SOC threshold range (such as set to 5%-95%), when the SOC data does not fall within the SOC threshold range, it is determined that the corresponding grid-connected system is in an unstable battery state, and then the corresponding power distribution for the SOC data that does not fall within the SOC threshold range is updated to 0, that is, no power is distributed to the grid-connected system whose SOC data does not fall within the SOC threshold range, thereby further improving the safety and reliability of power distribution.

[0066] Step S520: When the SOC data falls within the SOC threshold range, the sending power corresponding to the SOC data falling within the SOC threshold range is maintained unchanged.

[0067] By comparing the SOC data of each grid-connected system with the SOC threshold range, when the SOC data falls into the SOC threshold range, it is determined that the SOC of the corresponding grid-connected system is in a stable state, and then the corresponding power distribution when the SOC data falls into the SOC threshold range is maintained unchanged, thereby optimizing the power distribution of each grid-connected system, and charging and discharging the corresponding grid-connected system based on the optimized power distribution, achieving balanced power distribution and balanced battery use, avoiding overcharging or over-discharging of batteries in the energy storage system, ensuring stable operation of the energy storage power station, and reducing costs.

[0068] In one embodiment, as shown in FIG6 , after the step of processing each transmitted power according to each operating parameter data to obtain each optimized transmitted power, the following steps are included:

[0069] Step S610 : When the transmitted power of the corresponding grid-connected system exceeds a first power threshold of the corresponding grid-connected system, the transmitted power of the corresponding grid-connected system is updated to the first power threshold of the corresponding grid-connected system.

[0070] By comparing the transmitted power of each grid-connected system with the corresponding first power threshold, when the transmitted power exceeds the first power threshold, it is determined that the charging power and / or discharging power of the corresponding grid-connected system is too large, and then the transmitted power of the corresponding grid-connected system is updated to the corresponding first power threshold, thereby achieving optimized adjustment of the transmitted power of the corresponding grid-connected system.

[0071] Step S620: When the transmitted power of the corresponding grid-connected system does not exceed the first power threshold of the corresponding grid-connected system, the transmitted power of the corresponding grid-connected system is maintained unchanged.

[0072] By comparing the transmitted power of each grid-connected system with a first power threshold, when the transmitted power does not exceed the first power threshold, it is determined that the charging power and / or discharging power of the corresponding grid-connected system is within an appropriate range, and the transmitted power of the corresponding grid-connected system is maintained unchanged, thereby optimizing the transmitted power of each grid-connected system, and charging and discharging the corresponding grid-connected system based on the optimized transmitted power, achieving balanced power distribution and balanced battery use, avoiding overcharging or over-discharging of batteries in the energy storage system, ensuring stable operation of the energy storage power station, and reducing costs.

[0073] In the above embodiment, the transmitted power is allocated according to the required power of the BMS of each grid-connected system. After the transmitted power of each grid-connected system is allocated, the transmitted power is not immediately transmitted to the PCS. Instead, the operating parameter status of each grid-connected system is first detected to optimize and adjust the power, and the optimized transmitted power is sent to the PCS. The corresponding grid-connected system is charged and discharged through the PCS to achieve balanced power distribution and balanced battery usage. It should be noted that the execution time for completing the power optimization allocation is stable within 200ms, achieving ultimate response. By flexibly allocating power to each grid-connected system, the EMS can better manage and dispatch distributed energy (such as photovoltaics, energy storage, and charging piles, etc.), achieve optimal energy utilization and reduce energy costs.

[0074] In one embodiment, the operating parameter data also includes the current actual power; and after the step of detecting the operating parameter data of each grid-connected system, the following steps are included:

[0075] When the current actual power exceeds the second power threshold, the transmitted power corresponding to the current actual power exceeding the second power threshold is updated to 0.

[0076] For example, the power of the corresponding grid-connected system can be detected in real time through the BMS, and the current actual power of the corresponding grid-connected system can be obtained.

[0077] By comparing the current actual power of each grid-connected system with the second power threshold, when the current actual power exceeds the second power threshold, it is determined that the current actual power of the corresponding grid-connected system exceeds the safety range, and then the corresponding power distribution corresponding to the current actual power exceeding the second power threshold is updated to 0, that is, no power is distributed to the grid-connected system whose current actual power exceeds the second power threshold, thereby further improving the safety and reliability of power distribution.

[0078] It should be understood that although the various steps in the flow charts of Figures 2 to 6 are shown in sequence as indicated by the arrows, these steps are not necessarily performed in sequence in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and these steps can be performed in other orders. Moreover, at least a portion of the steps in Figures 2 to 6 may include multiple sub-steps or multiple stages, and these sub-steps or stages are not necessarily performed at the same time, but can be performed at different times, and the execution order of these sub-steps or stages is not necessarily performed in sequence, but can be performed in turn or alternately with at least a portion of other steps or sub-steps or stages of other steps.

[0079] In one embodiment, as shown in FIG7 , a power distribution device is provided, comprising:

[0080] The power acquisition unit 710 is used to acquire the total power of the energy storage system and the current required power of multiple grid-connected systems.

[0081] The power distribution unit 720 is used to obtain the power delivered by each corresponding grid-connected system according to the total power and the current required power.

[0082] The power optimization unit 730 is used to detect the operating parameter data of each grid-connected system, and process each transmitted power according to each operating parameter data to obtain each optimized transmitted power.

[0083] The power delivery unit 740 is configured to charge and discharge the corresponding grid-connected system based on the optimized delivered powers.

[0084] For the specific definition of the power distribution device, please refer to the definition of the power distribution method above, which will not be repeated here. The various modules in the above-mentioned power distribution device can be implemented in whole or in part by software, hardware and their combination. The above-mentioned modules can be embedded in or independent of the processor in the energy management system in the form of hardware, or can be stored in the memory in the energy management system in the form of software, so that the processor can call and execute the operations corresponding to the above modules.

[0085] In one embodiment, as shown in FIG8 , an energy storage power station is further provided, including an energy storage system 810 and multiple grid-connected systems 820 . The energy storage system 810 is provided with an energy management system 812 . The energy management system 812 is respectively connected to each grid-connected system 820 . The energy management system is used to execute the steps of any of the above-mentioned power distribution methods.

[0086] For example, the energy storage power station also includes an energy storage inverter, which is connected between the energy storage system 810 and each grid-connected system 820. The energy storage system 810 can discharge to each grid-connected system 820 via the energy storage inverter, and each grid-connected system 820 can also charge the energy storage system 810 via the energy storage inverter. The grid-connected system 820 may include a battery management system (BMS), and the energy management system 812 is connected to the BMS of each grid-connected system 820.

[0087] The energy management system 812 obtains the total power of the energy storage system 810 and the current power demand of each grid-connected system 820; obtains the power sent down by each corresponding grid-connected system 820 based on the total power and each current power demand; detects the operating parameters of each grid-connected system 820 to obtain the operating parameter data of each corresponding grid-connected system 820; processes each sent down power based on each operating parameter data to obtain each optimized sent down power; based on each optimized sent down power, charges and discharges each grid-connected system 820 corresponding to the optimized sent down power, thereby achieving balanced power distribution for each grid-connected system 820. This application allocates the transmitted power according to the current power demand of each grid-connected system 820. After allocating the transmitted power to each grid-connected system 820, the operating parameter data of each grid-connected system 820 is detected to adjust the transmitted power, thereby optimizing the transmitted power. Based on the optimized transmitted power, the corresponding grid-connected system 820 is charged and discharged, achieving balanced power distribution and balanced battery usage, avoiding overcharging or over-discharging of batteries in the energy storage system 810, ensuring stable operation of the energy storage power station, and reducing costs.

[0088] In the above embodiment, by performing flexible power distribution on each grid-connected system 820, the charge and discharge state of the energy storage system 810 can be accurately adjusted according to real-time detection data and prediction information to achieve optimal power distribution, thereby solving the problem of unbalanced power distribution in the traditional energy management system 812 and avoiding overcharging or over-discharging of the battery; solving the problem of unbalanced charging and discharging between battery clusters, making battery use more balanced; being more flexible and reasonable in terms of power distribution, and being able to independently control the charging and discharging of the battery clusters in a single energy storage system 810 without interfering with each other; by flexibly allocating power, the energy storage system 810 can optimize the use and distribution of energy, store energy during low demand periods, and release energy during high demand periods, thereby avoiding energy waste and improving energy utilization efficiency; in addition, the energy storage system 810 can absorb excess energy during peak periods of the power grid, reduce the load on the power grid, and release stored energy when needed to meet peak demand, which helps to reduce dependence on traditional power generation equipment and reduce the operating costs of the power grid.

[0089] In one embodiment, the present application provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the computer program implements the steps of any one of the above-mentioned power allocation methods. The computer-readable storage medium may be non-volatile or volatile.

[0090] For example, when the computer program is executed by a processor, the following steps of the power allocation method are implemented:

[0091] Obtain the total power of the energy storage system and the current power demand of each grid-connected system; obtain the transmitted power of each corresponding grid-connected system based on the total power and each current power demand; detect the operating parameters of each grid-connected system to obtain the operating parameter data of each corresponding grid-connected system; process each transmitted power based on the operating parameter data to obtain each optimized transmitted power; based on each optimized transmitted power, charge and discharge each grid-connected system corresponding to the optimized transmitted power to achieve balanced power distribution for each grid-connected system.

[0092] Those skilled in the art will understand that all or part of the processes in the above-mentioned embodiment methods can be implemented by instructing the relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned division operation methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in this application may include non-volatile and / or volatile memory. Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory may include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in many forms such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), etc.

Claims

1. A power distribution method comprising the following steps: Obtain the total power of the energy storage system and the current power requirements of multiple grid-connected systems; Obtaining the power delivered by each corresponding grid-connected system according to the total power and each current required power; detecting operating parameter data of each of the grid-connected systems, and processing each of the transmitted powers according to each of the operating parameter data to obtain each optimized transmitted power; Based on each optimized transmitted power, the corresponding grid-connected system is charged and discharged.

2. The power distribution method according to claim 1, wherein: Before the step of obtaining the power delivered by each corresponding grid-connected system according to the total power and each current required power, the step includes: Obtaining a total power requirement based on the current power requirements; Obtaining a power demand ratio of each of the grid-connected systems according to each of the current power demands and the total power demand; The step of obtaining the power delivered by each corresponding grid-connected system according to the total power and each current required power includes: According to the total power and the power demand ratios, the power delivered by each corresponding grid-connected system is obtained.

3. The power distribution method according to claim 1, wherein: The operating parameter data includes temperature data; The step of processing the transmitted powers according to the operating parameter data to obtain optimized transmitted powers includes: When the temperature data does not fall within the temperature threshold range, the power sent corresponding to the temperature data not falling within the temperature threshold range is updated to 0; When the temperature data falls within the temperature threshold range, the power sent corresponding to the temperature data falling within the temperature threshold range is maintained unchanged.

4. The power distribution method according to claim 3, wherein: The operating parameter data also includes voltage data; The step of processing the transmitted powers according to the operating parameter data to obtain optimized transmitted powers includes: When the voltage data does not fall within the voltage threshold range, updating the corresponding power sent when the voltage data does not fall within the voltage threshold range to 0; When the voltage data falls within the voltage threshold range, the power transmitted corresponding to the voltage data falling within the voltage threshold range is maintained unchanged.

5. The power distribution method according to claim 4, wherein: The operating parameter data also includes SOC data; The step of processing the transmitted powers according to the operating parameter data to obtain optimized transmitted powers includes: When the SOC data does not fall within the SOC threshold range, updating the sending power corresponding to the SOC data not falling within the SOC threshold range to 0; When the SOC data falls within the SOC threshold range, the sending power corresponding to the SOC data falling within the SOC threshold range is maintained unchanged.

6. The power distribution method according to any one of claims 3 to 5, wherein: After the step of processing the transmitted powers according to the operating parameter data to obtain the optimized transmitted powers, the following steps are included: When the transmitted power corresponding to the grid-connected system exceeds the first power threshold of the corresponding grid-connected system, updating the transmitted power corresponding to the grid-connected system to the first power threshold of the corresponding grid-connected system; When the transmitted power corresponding to the grid-connected system does not exceed the first power threshold of the corresponding grid-connected system, the transmitted power corresponding to the grid-connected system is maintained unchanged.

7. The power distribution method according to claim 6, wherein: The operating parameter data also includes current actual power; After the step of detecting the operating parameter data of each grid-connected system, the following steps are included: When the current actual power exceeds the second power threshold, the transmitted power corresponding to the current actual power exceeding the second power threshold is updated to 0.

8. A power distribution device comprising: A power acquisition unit, used to obtain the total power of the energy storage system and the current power requirements of multiple grid-connected systems; A power distribution unit, configured to obtain the power delivered by each corresponding grid-connected system according to the total power and each currently required power; The power optimization unit is used to detect the operating parameter data of each grid-connected system, process each of the downlink powers according to each of the operating parameter data, and obtain each optimized downlink power. The power sending unit is used to charge and discharge the corresponding grid-connected system based on each optimized sent power.

9. An energy storage power station, comprising an energy storage system and multiple grid-connected systems, wherein the energy storage system is provided with an energy management system, the energy management system being respectively connected to each of the grid-connected systems, and the energy management system being configured to execute the steps of the power distribution method according to any one of claims 1 to 7.

10. A computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the steps of the power allocation method according to any one of claims 1 to 7.

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