Energy storage adjustment method and apparatus, and electronic device and storage medium

Abstract

An energy storage adjustment method and apparatus, and an electronic device and a storage medium. The method comprises: after a microgrid is disconnected from a main grid, acquiring the state of charge of an energy storage system; when the state of charge of the energy storage system reaches a fully discharged state, adjusting the hydropower generation power of a hydropower generation device to first target generation power, such that the hydropower generation device supplies power to the energy storage system and a grid load device until the energy storage system is fully charged; when the state of charge of the energy storage system reaches a fully charged state, adjusting the hydropower generation power to second target generation power, such that the hydropower generation device and the energy storage system supply power to the grid load device until the energy storage system is fully discharged; and returning to execute charging in the fully discharged state until a connection between the microgrid and the main grid is restored.

Description

Energy storage regulation methods, devices, electronic equipment and storage media

[0001] This application claims priority to Chinese Patent Application No. 202411426898.9, filed with the Chinese Patent Office on October 14, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of hydropower technology, such as an energy storage regulation method, device, electronic equipment, and storage medium. Background Technology

[0003] In hydropower, a hydropower-storage microgrid comprises a small hydropower station, an energy storage system, and a power supply area; it is also known as a hydro-storage microgrid, or simply a microgrid. A hydro-storage microgrid can achieve energy self-sufficiency within its power supply area. When a hydro-storage microgrid is disconnected from the main power grid and becomes an islanded grid, due to the uncertainty of hydropower generation and the fluctuation of load within the microgrid, the microgrid's power generation and load demand will constantly change. If the hydropower generation is not adjusted in time, it will cause generator synchronism to fail, resulting in losses.

[0004] Currently, energy storage systems can store energy when electricity demand is low and release it when demand is high, thereby adjusting the supply and demand relationship between hydropower generation and grid load. By utilizing the regulating function of energy storage systems, when hydropower generation exceeds the load absorption capacity, the excess electrical energy is stored. When hydropower generation is less than the load absorption capacity, the electrical energy is released by the energy storage system to supplement power generation.

[0005] However, because the power generation and load demand of microgrids are constantly changing, current energy storage system adjustment methods require frequent adjustments to the charging and discharging modes of the energy storage system to cope with load fluctuations. Frequent switching between charging and discharging modes reduces the lifespan of the energy storage system. Summary of the Invention

[0006] This application provides an energy storage regulation method, device, electronic device, and storage medium to solve the problem in the related art that the frequent switching between charging and discharging operating modes of energy storage systems reduces the service life of the energy storage system.

[0007] In a first aspect, this application provides an energy storage regulation method, the method comprising: after the connection between a microgrid and the main grid is disconnected, obtaining the state of charge (SOC) of an energy storage system; wherein the energy storage system is a device in the microgrid, and the microgrid also includes hydropower generation equipment and grid load equipment; when the SOC of the energy storage system reaches a fully discharged state, adjusting the hydropower generation power of the hydropower generation equipment to a first target power generation power, so that the hydropower generation equipment supplies power to the energy storage system and the grid load equipment, until the SOC of the energy storage system reaches a fully charged state; when the SOC of the energy storage system reaches a fully charged state, adjusting the hydropower generation power to a second target power generation power, so that the hydropower generation equipment and the energy storage system supply power to the grid load equipment, until the SOC of the energy storage system reaches a fully discharged state; returning to the step of adjusting the hydropower generation power of the hydropower generation equipment to the first target power generation power when the SOC of the energy storage system reaches a fully discharged state, until the connection between the microgrid and the main grid is restored.

[0008] Secondly, this application provides an energy storage regulation device, comprising: an acquisition module configured to acquire the state of charge (SOC) of an energy storage system after the connection between the microgrid and the main grid is disconnected; wherein the energy storage system is a device in the microgrid, and the microgrid also includes hydropower generation equipment and grid load equipment; a first regulation module configured to adjust the hydropower generation power of the hydropower generation equipment to a first target generation power when the SOC of the energy storage system reaches a fully discharged state, so that the hydropower generation equipment supplies power to the energy storage system and the grid load equipment, until the SOC of the energy storage system reaches a fully charged state; a second regulation module configured to adjust the hydropower generation power to a second target generation power when the SOC of the energy storage system reaches a fully charged state, so that the hydropower generation equipment and the energy storage system supply power to the grid load equipment, until the SOC of the energy storage system reaches a fully discharged state; and a return module configured to return to the step of adjusting the hydropower generation power of the hydropower generation equipment to the first target generation power when the SOC of the energy storage system reaches a fully discharged state, until the connection between the microgrid and the main grid is restored.

[0009] Thirdly, this application provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the energy storage regulation method as described in any embodiment of this application.

[0010] Fourthly, this application also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the energy storage regulation method as described in any embodiment of this application.

[0011] Fifthly, this application provides a computer program product, including a computer program that, when executed by a processor, implements the energy storage regulation method as described in any embodiment of this application.

[0012] The proposed solution obtains the state of charge (SOC) of the energy storage system after the microgrid is disconnected from the main grid. The energy storage system is a device within the microgrid, which also includes hydroelectric power generation equipment and grid load equipment. When the energy storage system reaches full charge, the hydroelectric power generation of the hydroelectric power generation equipment is adjusted to a first target power output to supply power to the energy storage system and grid load equipment until the energy storage system reaches full charge. When the energy storage system reaches full charge, the hydroelectric power generation is adjusted to a second target power output to supply power to the grid load equipment until the energy storage system reaches full discharge. The process then returns to the step of adjusting the hydroelectric power generation of the hydroelectric power generation equipment to the first target power output when the energy storage system reaches full discharge, until the connection between the microgrid and the main grid is restored. The proposed solution involves starting charging when the energy storage system reaches a fully discharged state, and only after it reaches a fully charged state does it begin discharging. Charging continues until the system reaches a fully discharged state, at which point it is recharged. This process of charging to full charge, discharging, and then recharging avoids frequent switching between charging and discharging modes, thereby increasing the system's lifespan. Attached Figure Description

[0013] Figure 1 is a flowchart of the energy storage regulation method provided in this application;

[0014] Figure 2 is another flowchart of the energy storage regulation method provided in this application;

[0015] Figure 3 is a structural schematic diagram of the energy storage regulation device provided in this application;

[0016] Figure 4 is a structural schematic diagram of the electronic device provided in this application. Detailed Implementation

[0017] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly described below with reference to the accompanying drawings. The described embodiments may be some or all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0018] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0019] Figure 1 is a schematic flowchart of an energy storage regulation method provided in this application. This method can be executed by an energy storage regulation device provided in this application, which can be implemented using software and / or hardware. In one embodiment, the device can be integrated into an electronic device. For example, the device can be integrated into a computer. The following embodiments will be described using the integration of the device into an electronic device as an example. Referring to Figure 1, the method specifically may include the following steps:

[0020] Step 101: After the microgrid is disconnected from the main grid, obtain the state of charge of the energy storage system.

[0021] Among them, the energy storage system is a device in the microgrid, which also includes hydropower generation equipment and grid load equipment.

[0022] In one possible implementation, after the microgrid is disconnected from the main grid, it becomes an isolated grid. In this case, the microgrid needs to achieve energy self-sufficiency within its area, meaning its power generation must meet the electricity demand within the microgrid. The microgrid includes an energy storage system, hydroelectric power generation equipment, and grid load equipment. The energy storage system can store surplus energy when the energy generated by the hydroelectric power generation equipment is sufficient to meet the energy consumption of the grid load equipment. Furthermore, when the energy generated by the hydroelectric power generation equipment is insufficient to meet the energy consumption of the grid load equipment, the energy storage system can transfer the stored energy to the grid load equipment, thereby satisfying the energy consumption of the grid load equipment. The state of charge (SOC) of the energy storage system indicates the remaining energy capacity, usually expressed as a percentage of the total energy capacity. For example, the SOC of the energy storage system is 50%. Obtaining the state of charge of the energy storage system, i.e., obtaining the remaining energy capacity, after the microgrid is disconnected from the main grid is crucial. The initial state of charge (SOC) of an energy storage system refers to the state in which there is essentially no remaining electricity in the system. For example, the initial SOC of the energy storage system is 10%. In one implementation of this application, when the energy storage system reaches its initial SOC, the connection between the microgrid and the main grid is disconnected to allow the energy storage system to begin charging.

[0023] Step 102: When the energy storage system reaches a fully charged state, adjust the hydropower of the hydropower generation equipment to the first target power generation, so that the hydropower generation equipment can supply power to the energy storage system and the grid load equipment until the energy storage system reaches a fully charged state.

[0024] In one possible implementation, a fully discharged state refers to the state of the energy storage system after it has released a large amount of stored electricity during the discharge process. For example, a fully discharged state can be when the SOC of the energy storage system is less than or equal to 20%. A fully charged state refers to the state of the energy storage system after it has stored a large amount of electricity during the charging process. For example, a fully charged state can be when the SOC of the energy storage system is greater than or equal to 80%. When the hydropower generation capacity of the hydropower equipment is at the first target generation capacity, the hydropower equipment can supply power to the energy storage system and the grid load equipment, so that the energy storage system can store the remaining electrical energy. For example, the first target generation capacity can be a fixed value or 1.5 times the current grid load equipment. When the state of charge of the energy storage system reaches a fully discharged state, the hydropower generation capacity of the hydropower equipment is adjusted to the first target generation capacity, so that the hydropower equipment can charge the energy storage system while meeting the power supply needs of the grid load equipment, until the state of charge of the energy storage system reaches a fully charged state. The method for adjusting the hydropower output of a hydropower generating device can be by adjusting the opening of the guide vanes or the opening of the ball valve, etc. This method does not limit the specific method.

[0025] Optionally, adjusting the hydropower output of the hydropower generation equipment to the first target output power so that the hydropower generation equipment supplies power to the energy storage system and grid load equipment until the energy storage system reaches a fully charged state can be achieved through steps 21 to 25.

[0026] Step 21: Obtain the hydropower generation capacity and the load absorption capacity of the grid load equipment.

[0027] In one possible implementation, the hydropower generation capacity is the output power of the hydropower generation equipment, and the load absorption capacity is the power consumed by the grid load equipment. When the energy storage system reaches full charge, both the hydropower generation capacity and the load absorption capacity of the grid load equipment are obtained.

[0028] Step 22: Determine the energy storage regulation cycle based on the capacity of the energy storage system, the hydropower generation capacity, and the load absorption capacity.

[0029] In one possible implementation, when regulating hydropower equipment, after issuing a command to adjust the hydropower output, a certain period of time is required for the equipment to adjust its operation. However, adjusting the equipment too quickly during this process can generate high water pressure, making the equipment prone to damage. For example, when adjusting the hydropower equipment by closing the guide vane opening, closing the vane too quickly can generate high water hammer pressure, thus damaging the equipment. Therefore, after issuing a command to adjust the hydropower output, it is not advisable to issue another adjustment command within the energy storage regulation cycle to avoid damage caused by the equipment operating too quickly. The energy storage regulation cycle is the time from issuing the command to adjust the hydropower output to completing the adjustment. Since the product of power and time is the total energy, the energy storage regulation cycle can be determined based on the capacity of the energy storage system, the hydropower output, and the load absorption capacity. For example, after determining the power difference between hydropower generation and load absorption, the ratio of 30% of the energy storage system capacity to this power difference is used as the energy storage adjustment period. Theoretically, the remaining electricity in the energy storage system can be increased by 30% within this energy storage adjustment period, and the hydropower generation has sufficient adjustment time within this period.

[0030] Optionally, the energy storage regulation cycle can be determined based on the capacity of the energy storage system, the hydropower generation capacity, and the load absorption capacity through steps 221 to 224.

[0031] Step 221: Determine the power deviation based on the hydropower generation capacity and the load absorption capacity.

[0032] In one possible implementation, the power deviation is determined based on the hydropower generation capacity and the load absorption capacity, i.e., the power deviation can indicate the power value of the hydropower generation capacity used to charge the energy storage system.

[0033] For example, the power deviation can be determined based on the hydropower generation capacity and the load absorption capacity using Formula 1. ΔP = P 水 -P 负荷 Formula 1

[0034] Where ΔP is the power deviation, P 水 For hydroelectric power generation, P 负荷 Power absorbed by the load.

[0035] Step 222: Determine the initial adjustment cycle based on the capacity and power deviation of the energy storage system.

[0036] In one possible implementation, an initial adjustment period is determined based on the capacity and power deviation of the energy storage system, so that the capacity of the energy storage system can reach the expected level within the initial adjustment period.

[0037] Optionally, the ratio of half the capacity of the energy storage system to the power deviation can be used to determine the initial adjustment period.

[0038] In one possible implementation, the ratio of half the capacity of the energy storage system to the power deviation is used as the initial adjustment period, which theoretically allows the remaining power in the energy storage system to be increased by 50% within this initial adjustment period.

[0039] For example, the ratio of half the capacity of the energy storage system to the power deviation can be used to determine the initial adjustment period using Equation 2.

[0040] Where t is the initial adjustment period, Q is the maximum capacity of the energy storage system, and ΔP is the power deviation.

[0041] Step 223: If the initial adjustment period is less than or equal to the preset adjustment period, then the preset adjustment period is determined as the energy storage adjustment period.

[0042] In one possible implementation, the preset regulation period is a pre-set regulation period that ensures sufficient regulation time for hydropower generation. That is, when regulating hydropower generation according to the preset regulation period, it avoids the situation where excessively rapid regulation of the hydropower equipment would generate excessive water pressure, leading to equipment damage. For example, the preset regulation period could be 100ms. Therefore, if the initial regulation period is less than or equal to the preset regulation period, the preset regulation period is determined as the energy storage regulation period, thereby ensuring sufficient regulation time for hydropower generation.

[0043] Step 224: If the initial adjustment period is greater than the preset adjustment period, then the initial adjustment period is determined as the energy storage adjustment period.

[0044] In one possible implementation, if the initial adjustment period is greater than the preset adjustment period, the initial adjustment period can avoid the situation where excessively rapid adjustment of the hydropower equipment will generate large water pressure, which could easily damage the equipment. In this case, the initial adjustment period is determined as the energy storage adjustment period.

[0045] For example, if the initial adjustment period is less than or equal to the preset adjustment period, the preset adjustment period is determined as the energy storage adjustment period; if the initial adjustment period is greater than the preset adjustment period, the initial adjustment period is determined as the energy storage adjustment period, which can be achieved through Formula 3.

[0046] Where T is the energy storage regulation period, Q is the maximum capacity of the energy storage system, and ΔP is the power deviation.

[0047] In this embodiment, a preset adjustment period of 100ms is used to determine the energy storage adjustment period, which allows sufficient adjustment time for the hydropower equipment, thereby ensuring the safety of the hydropower equipment. At the same time, the initial adjustment period is calculated based on the capacity and power deviation of the energy storage system, and then the energy storage adjustment period is obtained. This can reduce the adjustment of the hydropower equipment while ensuring that the hydraulic adjustment response speed meets the needs of the energy storage system.

[0048] Step 23: During the first energy storage regulation cycle, adjust the hydropower generation power to the first target power generation power.

[0049] The first target power generation is used to indicate the ratio of hydropower generation to load absorption power as a first ratio value, and the first ratio value is greater than a preset value.

[0050] In one possible implementation, the preset value is 1. Therefore, the ratio of hydropower generation to load absorption capacity is a first ratio, and when the first ratio is greater than 1, the hydropower generation can charge the energy storage system. For example, the first ratio can be 1.3. The first energy storage regulation cycle is the first energy storage regulation cycle after the energy storage system starts charging. During the first energy storage regulation cycle, the hydropower generation is adjusted to the first target power generation, and the hydropower equipment begins charging the energy storage system.

[0051] For example, during the first energy storage regulation cycle, the hydropower generation capacity is regulated to 1.3 times the load absorption capacity.

[0052] Step 24: Determine the next energy storage regulation cycle after the first energy storage regulation cycle as the second energy storage regulation cycle. Within the second energy storage regulation cycle, obtain the hydropower generation, load absorption power, and state of charge of the energy storage system.

[0053] In one possible implementation, the second energy storage regulation cycle begins after the first energy storage regulation cycle ends, at which point the hydropower generation, load absorption power, and state of charge of the energy storage system at the start of the second energy storage regulation cycle are obtained.

[0054] For example, the energy storage regulation cycle is 100ms. After the first energy storage regulation cycle, the next energy storage regulation cycle, also lasting 100ms, begins, which is the second energy storage regulation cycle. At this time, the hydropower generation, load absorption power, and state of charge of the energy storage system at the beginning of the second energy storage regulation cycle are obtained.

[0055] Step 25: Based on the ratio of the hydropower generation power of the second energy storage regulation cycle to the load absorption power of the second energy storage regulation cycle, adjust the hydropower generation power after the first energy storage regulation cycle to the first target power generation power, so that the hydropower generation equipment supplies power to the energy storage system and the grid load equipment until the energy storage system reaches a fully charged state.

[0056] In one possible implementation, due to the numerous uncontrollable factors in hydropower generation, such as water volume, significant deviations can easily occur when adjusting the hydropower output. The deviation between the current hydropower output and the first ratio is determined based on the ratio of the hydropower output in the second energy storage regulation cycle to the load absorption power in the same cycle. This deviation is then addressed, for example, by sending a command again in the second energy storage regulation cycle to adjust the hydropower output to the first target output. This ensures that the hydropower output after the first regulation cycle is adjusted to the first target output, thereby enabling the hydropower equipment to supply power to the energy storage system and grid load equipment until the energy storage system reaches full charge.

[0057] Optionally, the hydropower generation power after the first energy storage regulation cycle is adjusted to the first target power generation power based on the ratio of the hydropower generation power of the second energy storage regulation cycle to the load absorption power of the second energy storage regulation cycle, so that the hydropower generation equipment supplies power to the energy storage system and the grid load equipment until the energy storage system reaches a fully charged state, which can be achieved through steps 251 to 252.

[0058] Step 251: If the ratio of the hydropower generation power of the second energy storage regulation cycle to the load absorption power of the second energy storage regulation cycle is less than the second ratio or greater than the third ratio, then the second energy storage regulation cycle is taken as the new first energy storage regulation cycle, and the process returns to step 23 until the energy storage system reaches a fully charged state.

[0059] The second ratio is less than the first ratio, the third ratio is greater than the first ratio, and both the second and third ratios are greater than preset values.

[0060] In one possible implementation, the second ratio indicates the minimum acceptable deviation during hydropower regulation in the energy storage system's charging process. The third ratio indicates the maximum acceptable deviation during hydropower regulation in the same charging process. If the ratio of hydropower to load absorption power in the second energy storage regulation cycle is less than the second ratio or greater than the third ratio, then the deviation between this ratio and the first ratio is unacceptable. Therefore, the second energy storage regulation cycle is then used as the new first energy storage regulation cycle, and the process is repeated to adjust the hydropower to the first target power, thereby enabling the hydropower equipment to supply power to the energy storage system and grid load equipment until the energy storage system reaches full charge.

[0061] For example, the first ratio is 1.3, the second ratio is 1.1, and the third ratio is 1.5. If the ratio of the hydropower generation in the second energy storage regulation cycle to the load absorption power in the second energy storage regulation cycle is less than 1.1 or greater than 1.5, then the second energy storage regulation cycle is taken as the new first energy storage regulation cycle, and the process returns to step 23 until the energy storage system reaches a fully charged state.

[0062] Step 252: If the ratio of the hydropower generation in the second energy storage regulation cycle to the load absorption power in the second energy storage regulation cycle is greater than or equal to the second ratio and less than or equal to the third ratio, then the next cycle of the second energy storage regulation cycle is taken as the new second energy storage regulation cycle, and the process of obtaining the hydropower generation in the second energy storage regulation cycle, the load absorption power in the second energy storage regulation cycle, and the state of charge of the energy storage system is repeated until the state of charge of the energy storage system reaches full charge.

[0063] In one possible implementation, if the ratio of the hydropower generation to the load absorption power of the second energy storage regulation cycle is greater than or equal to a second ratio and less than or equal to a third ratio, then the deviation is acceptable, and the hydropower generation equipment can charge the energy storage system. At this point, the next cycle of the second energy storage regulation cycle is taken as the new second energy storage regulation cycle. The process of obtaining the hydropower generation, load absorption power, and state of charge of the energy storage system from the second energy storage regulation cycle is then initiated, ensuring that the energy storage system is in a charging state until its state of charge reaches full charge.

[0064] During the charging process of the energy storage system, the hydropower equipment is finely adjusted, specifically for multiple energy storage regulation cycles. This ensures that the hydropower equipment charges the energy storage system, guarantees the charging process, and prevents the energy storage system from discharging before reaching full charge. Therefore, frequent switching between charging and discharging modes is avoided, increasing the lifespan of the energy storage system.

[0065] For example, the first ratio is 1.3, the second ratio is 1.1, and the third ratio is 1.5. If the ratio of the hydropower generation in the second energy storage regulation cycle to the load absorption power in the second energy storage regulation cycle is greater than or equal to 1.1 and less than or equal to 1.5, then the next cycle of the second energy storage regulation cycle is taken as the new second energy storage regulation cycle, and the hydropower generation, load absorption power, and state of charge of the energy storage system in the second energy storage regulation cycle are retrieved again until the state of charge of the energy storage system reaches full charge.

[0066] Step 103: When the energy storage system reaches full charge, adjust the hydropower generation power to the second target power so that the hydropower generation equipment and the energy storage system can supply power to the grid load equipment until the energy storage system reaches full discharge.

[0067] In one possible implementation, when the hydropower generation capacity reaches the second target capacity, the hydropower equipment is insufficient to provide the electricity required by the grid load equipment. In this case, an energy storage system is needed to supply the surplus energy within the storage system to the grid load equipment to meet its power demand. For example, the second target capacity can be a fixed value or 0.8 times the current grid load capacity. When the energy storage system reaches full charge, the hydropower generation capacity of the hydropower equipment is adjusted to the second target capacity so that both the hydropower equipment and the energy storage system supply power to the grid load equipment to meet its power demand, until the energy storage system reaches full discharge.

[0068] Step 104: Return to step 102 until the connection between the microgrid and the main grid is restored.

[0069] In one possible implementation, after the energy storage system reaches a fully discharged state of charge, the process returns to step 102, whereby the hydropower generation capacity of the hydroelectric generator is adjusted to the first target power output, enabling the hydroelectric generator to supply power to the energy storage system and grid load equipment, thus completing another charging process for the energy storage system. Therefore, in the above process, charging begins when the energy storage system reaches a fully discharged state of charge. Only after the energy storage system reaches a fully charged state does it begin discharging. After the energy storage system discharges to a fully discharged state, it is charged again. By cyclically repeating this process, the energy storage system can be charged to a fully charged state and then discharged, and then recharged again after discharging to a fully discharged state, until the connection between the microgrid and the main grid is restored.

[0070] The proposed solution obtains the state of charge (SOC) of the energy storage system after the microgrid is disconnected from the main grid. The energy storage system is a device within the microgrid, which also includes hydroelectric power generation equipment and grid load equipment. When the energy storage system reaches full charge, the hydroelectric power generation of the hydroelectric power generation equipment is adjusted to a first target power output to supply power to the energy storage system and grid load equipment until the energy storage system reaches full charge. When the energy storage system reaches full charge, the hydroelectric power generation is adjusted to a second target power output to supply power to the grid load equipment until the energy storage system reaches full discharge. The process then returns to the step of adjusting the hydroelectric power generation of the hydroelectric power generation equipment to the first target power output when the energy storage system reaches full discharge, until the connection between the microgrid and the main grid is restored. The proposed solution involves starting charging when the energy storage system reaches a fully discharged state, and only after it reaches a fully charged state does it begin discharging. Charging continues until the system reaches a fully discharged state, at which point it is recharged. This process of charging to full charge, discharging, and then recharging avoids frequent switching between charging and discharging modes, thereby increasing the system's lifespan.

[0071] Figure 2 is another flowchart illustrating the energy storage regulation method provided in this application. Based on the embodiment shown in Figure 1 and various optional implementation schemes, this embodiment provides a detailed description of the discharge process of the energy storage system when the state of charge of the energy storage system reaches a fully charged state. As shown in Figure 2, the method may include:

[0072] Step 201: After the microgrid is disconnected from the main grid, obtain the state of charge of the energy storage system.

[0073] Step 202: When the energy storage system reaches a fully charged state, adjust the hydropower of the hydropower generation equipment to the first target power generation, so that the hydropower generation equipment supplies power to the energy storage system and the grid load equipment until the energy storage system reaches a fully charged state.

[0074] Step 203: During the third energy storage regulation cycle, adjust the hydropower generation power to the second target power generation power.

[0075] The second target power generation is used to indicate the ratio of hydropower generation to load absorption power as the fourth ratio, and the fourth ratio is less than the preset value.

[0076] In one possible implementation, the preset value is 1. Therefore, the ratio of hydropower generation to load absorption capacity is the fourth ratio. When the fourth ratio is less than 1, the hydropower generation is insufficient to provide enough electricity to the grid load equipment. In this case, the energy storage system needs to discharge to supply power to the grid load equipment. For example, the fourth ratio can be 0.7. The third energy storage regulation cycle is the first energy storage regulation cycle after the energy storage system begins discharging. When the energy storage system reaches full charge, during the third energy storage regulation cycle, the hydropower generation is adjusted to the second target generation power, and the hydropower generation equipment and the energy storage system jointly supply power to the grid load equipment.

[0077] For example, during the third energy storage regulation cycle, the hydropower generation capacity is regulated to 0.7 times the load absorption capacity.

[0078] Step 204: Determine the next energy storage regulation cycle after the third energy storage regulation cycle as the fourth energy storage regulation cycle. During the fourth energy storage regulation cycle, obtain the hydropower generation power, the load absorption power, and the state of charge of the energy storage system.

[0079] In one possible implementation, the fourth energy storage regulation cycle begins after the third energy storage regulation cycle ends, at which point the hydropower generation, load absorption power, and state of charge of the energy storage system at the start of the fourth energy storage regulation cycle are obtained.

[0080] For example, the energy storage regulation cycle is 200ms. After the third energy storage regulation cycle, the next energy storage regulation cycle with a duration of 200ms begins, which is the fourth energy storage regulation cycle. At this time, the hydropower generation, load absorption power and state of charge of the energy storage system are obtained at the beginning of the fourth energy storage regulation cycle.

[0081] Step 205: Based on the ratio of the hydropower generation power of the fourth energy storage regulation cycle to the load absorption power of the fourth energy storage regulation cycle, adjust the hydropower generation power after the third energy storage regulation cycle to the second target power generation power, so that the hydropower generation equipment and the energy storage system can supply power to the grid load equipment until the energy storage system reaches full charge state.

[0082] In one possible implementation, the deviation between the current ratio and the fourth ratio is determined based on the ratio of the hydropower generation in the fourth energy storage regulation cycle to the load absorption capacity in the fourth energy storage regulation cycle. This deviation is then addressed, for example, by sending a command again in the fourth energy storage regulation cycle to adjust the hydropower generation to the second target generation capacity. This adjusts the hydropower generation capacity after the third energy storage regulation cycle to the second target generation capacity, thereby enabling the hydropower generation equipment and energy storage system to supply power to the grid load equipment until the energy storage system reaches full charge.

[0083] Optionally, based on the ratio of the hydropower generation power of the fourth energy storage regulation cycle to the load absorption power of the fourth energy storage regulation cycle, the hydropower generation power after the third energy storage regulation cycle is adjusted to the second target power generation power so that the hydropower generation equipment and the energy storage system can supply power to the grid load equipment until the energy storage system reaches a fully charged state, which can be achieved through steps 51 to 52.

[0084] Step 51: If the ratio of the hydropower generation in the fourth energy storage regulation cycle to the load absorption power in the fourth energy storage regulation cycle is less than the fifth ratio or greater than the sixth ratio, then the fourth energy storage regulation cycle is taken as the new third energy storage regulation cycle, and the process returns to step 203 until the energy storage system reaches full charge.

[0085] Among them, the fifth ratio is less than the fourth ratio, the sixth ratio is greater than the fourth ratio, and both the fifth and sixth ratios are less than the preset values.

[0086] In one possible implementation, the fifth ratio indicates the minimum acceptable deviation during hydropower regulation in the energy storage system's discharge process. The sixth ratio indicates the maximum acceptable deviation during hydropower regulation in the same process. If the ratio of hydropower to load absorption power in the fourth energy storage regulation cycle is less than the fifth ratio or greater than the sixth ratio, then the deviation between this ratio and the fourth ratio is unacceptable. Therefore, the fourth energy storage regulation cycle is then treated as a new third energy storage regulation cycle, and the process is repeated to regulate the hydropower to the second target power, thereby enabling the hydropower generation equipment and energy storage system to supply power to the grid load equipment until the energy storage system reaches full charge.

[0087] For example, the fourth ratio is 0.7, the fifth ratio is 0.5, and the sixth ratio is 0.9. If the ratio of the hydropower generation in the fourth energy storage regulation cycle to the load absorption power in the fourth energy storage regulation cycle is less than 0.5 or greater than 0.9, then the fourth energy storage regulation cycle is taken as the new third energy storage regulation cycle, and the process returns to step 203 until the energy storage system reaches a fully charged state.

[0088] Step 52: If the ratio of the hydropower generation in the fourth energy storage regulation cycle to the load absorption power in the fourth energy storage regulation cycle is greater than or equal to the fifth ratio and less than or equal to the sixth ratio, then the next cycle of the fourth energy storage regulation cycle is taken as the new fourth energy storage regulation cycle, and the process of obtaining the hydropower generation in the fourth energy storage regulation cycle, the load absorption power in the fourth energy storage regulation cycle, and the state of charge of the energy storage system is repeated until the state of charge of the energy storage system reaches full discharge.

[0089] In one possible implementation, if the ratio of the hydropower generation to the load absorption power of the fourth energy storage regulation cycle is greater than or equal to the fifth ratio and less than or equal to the sixth ratio, then the deviation is acceptable, and the hydropower generation equipment and the energy storage system jointly supply power to the grid load equipment. At this point, the next cycle of the fourth energy storage regulation cycle is taken as the new fourth energy storage regulation cycle. The process of obtaining the hydropower generation, load absorption power, and state of charge of the energy storage system from the fourth energy storage regulation cycle is then initiated, ensuring that the energy storage system is in a discharging state until the energy storage system reaches full charge.

[0090] For example, the fourth ratio is 0.7, the fifth ratio is 0.5, and the sixth ratio is 0.9. If the ratio of the hydropower generation in the fourth energy storage regulation cycle to the load absorption power in the fourth energy storage regulation cycle is greater than or equal to 0.5 and less than or equal to 0.9, then the next cycle of the fourth energy storage regulation cycle is taken as the new fourth energy storage regulation cycle, and the hydropower generation, load absorption power, and state of charge of the energy storage system in the fourth energy storage regulation cycle are retrieved, until the state of charge of the energy storage system reaches full discharge.

[0091] Step 206: Return to step 202 until the connection between the microgrid and the main grid is restored.

[0092] In one possible implementation, after the energy storage system reaches a fully discharged state, the process returns to step 102 until the connection between the microgrid and the main grid is restored.

[0093] It should be understood that although the steps in the flowchart of Figure 2 are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some of the steps in Figure 2 may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these sub-steps or stages does not have to be sequential, but can be performed alternately or in turn with other steps or at least some of the sub-steps or stages of other steps.

[0094] The proposed solution involves precise adjustments to the hydropower generation equipment during the discharge process of the energy storage system. This involves separately adjusting multiple energy storage regulation cycles, ensuring that both the hydropower generation equipment and the energy storage system jointly supply power to the grid load. This guarantees the smooth discharge process of the energy storage system and prevents it from charging before reaching full discharge. Therefore, it avoids frequent switching between charging and discharging modes, increasing the lifespan of the energy storage system.

[0095] Figure 3 is a schematic diagram of an energy storage regulation device provided in this application, which is configured to execute the energy storage regulation method provided in this application. As shown in Figure 3, the device may specifically include:

[0096] The acquisition module 301 is configured to acquire the state of charge of the energy storage system after the connection between the microgrid and the main grid is disconnected; wherein, the energy storage system is a device in the microgrid, and the microgrid also includes hydropower generation equipment and grid load equipment;

[0097] The first adjustment module 302 is configured to adjust the hydropower generation power of the hydropower generation equipment to a first target power when the state of charge of the energy storage system reaches a fully discharged state, so that the hydropower generation equipment supplies power to the energy storage system and the grid load equipment until the state of charge of the energy storage system reaches a fully charged state.

[0098] The second adjustment module 303 is configured to adjust the hydropower generation power to a second target power generation power when the state of charge of the energy storage system reaches a fully charged state, so that the hydropower generation equipment and the energy storage system can supply power to the grid load equipment until the state of charge of the energy storage system reaches a fully discharged state.

[0099] The return module 304 is configured to return to the execution of the step of adjusting the hydropower generation power of the hydropower generation equipment to the first target power generation power when the state of charge of the energy storage system reaches the fully discharged state, until the connection between the microgrid and the main grid is restored.

[0100] In one embodiment, the first adjustment module 302 is configured to: acquire the hydropower generation power and the load absorption power of the grid load equipment; determine an energy storage adjustment cycle based on the capacity of the energy storage system, the hydropower generation power, and the load absorption power; within a first energy storage adjustment cycle, adjust the hydropower generation power to a first target power generation power; wherein the first target power generation power is set to indicate that the ratio of the hydropower generation power to the load absorption power is a first ratio, and the first ratio is greater than a preset value; determine the next energy storage adjustment cycle of the first energy storage adjustment cycle as a second energy storage adjustment cycle; within the second energy storage adjustment cycle, acquire the hydropower generation power of the second energy storage adjustment cycle, the load absorption power of the second energy storage adjustment cycle, and the state of charge of the energy storage system; based on the ratio of the hydropower generation power of the second energy storage adjustment cycle to the load absorption power of the second energy storage adjustment cycle, adjust the hydropower generation power after the first energy storage adjustment cycle to the first target power generation power, so that the hydropower generation equipment supplies power to the energy storage system and the grid load equipment until the state of charge of the energy storage system reaches full charge.

[0101] In one embodiment, the first adjustment module 302 adjusts the hydropower generation after the first energy storage adjustment cycle to the first target power generation based on the ratio of the hydropower generation during the second energy storage adjustment cycle to the load absorption power during the second energy storage adjustment cycle, so that the hydropower generation equipment supplies power to the energy storage system and the grid load equipment until the state of charge of the energy storage system reaches full charge. The adjustment is configured such that: if the ratio of the hydropower generation during the second energy storage adjustment cycle to the load absorption power during the second energy storage adjustment cycle is less than a second ratio or greater than a third ratio, then the second energy storage adjustment cycle is taken as a new first energy storage adjustment cycle, and the process of adjusting the hydropower generation to the first target power generation within the first energy storage adjustment cycle is resumed. The power is measured until the state of charge of the energy storage system reaches a fully charged state; wherein, the second ratio is less than the first ratio, the third ratio is greater than the first ratio, and both the second ratio and the third ratio are greater than preset values; if the ratio of the hydropower generation power of the second energy storage regulation cycle to the load absorption power of the second energy storage regulation cycle is greater than or equal to the second ratio and less than or equal to the third ratio, then the next cycle of the second energy storage regulation cycle is taken as a new second energy storage regulation cycle, and the process of obtaining the hydropower generation power of the second energy storage regulation cycle, the load absorption power of the second energy storage regulation cycle, and the state of charge of the energy storage system within the second energy storage regulation cycle is repeated until the state of charge of the energy storage system reaches a fully charged state.

[0102] In one embodiment, the second adjustment module 303 is configured to: adjust the hydropower generation to the second target power generation during the third energy storage adjustment cycle; wherein the second target power generation is set to indicate that the ratio of the hydropower generation to the load absorption power is a fourth ratio, and the fourth ratio is less than a preset value; determine the next energy storage adjustment cycle of the third energy storage adjustment cycle as the fourth energy storage adjustment cycle; during the fourth energy storage adjustment cycle, acquire the hydropower generation of the fourth energy storage adjustment cycle, the load absorption power of the fourth energy storage adjustment cycle, and the state of charge of the energy storage system; based on the ratio of the hydropower generation to the load absorption power of the fourth energy storage adjustment cycle, adjust the hydropower generation after the third energy storage adjustment cycle to the second target power generation, so that the hydropower generation equipment and the energy storage system supply power to the grid load equipment until the state of charge of the energy storage system reaches full discharge.

[0103] In one embodiment, the second adjustment module 303, in adjusting the hydropower generation power after the third energy storage adjustment cycle to the second target power generation power based on the ratio of the hydropower generation power to the load absorption power of the fourth energy storage adjustment cycle, so that the hydropower generation equipment and the energy storage system supply power to the grid load equipment until the state of charge of the energy storage system reaches full discharge, is configured as follows: if the ratio of the hydropower generation power to the load absorption power of the fourth energy storage adjustment cycle is less than a fifth ratio or greater than a sixth ratio, then the fourth energy storage adjustment cycle is taken as a new third energy storage adjustment cycle, and the process of adjusting the hydropower generation power to the second target power generation power within the third energy storage adjustment cycle is resumed. The electrical power is measured until the state of charge of the energy storage system reaches full discharge. The fifth ratio is less than the fourth ratio, the sixth ratio is greater than the fourth ratio, and both the fifth and sixth ratios are less than preset values. If the ratio of the hydropower generation in the fourth energy storage regulation cycle to the load absorption power in the fourth energy storage regulation cycle is greater than or equal to the fifth ratio and less than or equal to the sixth ratio, then the next cycle of the fourth energy storage regulation cycle is taken as a new fourth energy storage regulation cycle, and the process of obtaining the hydropower generation, load absorption power, and state of charge of the energy storage system within the fourth energy storage regulation cycle continues until the state of charge of the energy storage system reaches full discharge.

[0104] In one embodiment, the first adjustment module 302 is configured to determine the energy storage adjustment cycle based on the capacity of the energy storage system, the hydropower generation capacity, and the load absorption capacity by: determining a power deviation based on the hydropower generation capacity and the load absorption capacity; determining an initial adjustment cycle based on the capacity of the energy storage system and the power deviation; if the initial adjustment cycle is less than or equal to a preset adjustment cycle, then determining the preset adjustment cycle as the energy storage adjustment cycle; if the initial adjustment cycle is greater than the preset adjustment cycle, then determining the initial adjustment cycle as the energy storage adjustment cycle.

[0105] In one embodiment, the first adjustment module 302 is configured to determine the initial adjustment period based on the capacity of the energy storage system and the power deviation by: determining the ratio of half the capacity of the energy storage system to the power deviation as the initial adjustment period.

[0106] The device of this application acquires the state of charge (SOC) of the energy storage system after the connection between the microgrid and the main grid is disconnected. The energy storage system is a device within the microgrid, which also includes hydroelectric power generation equipment and grid load equipment. When the SOC of the energy storage system reaches full charge, the hydroelectric power generation of the hydroelectric power generation equipment is adjusted to a first target power generation, enabling the hydroelectric power generation equipment to supply power to the energy storage system and grid load equipment until the SOC of the energy storage system reaches full charge. When the SOC of the energy storage system reaches full charge, the hydroelectric power generation is adjusted to a second target power generation, enabling the hydroelectric power generation equipment and the energy storage system to supply power to the grid load equipment until the SOC of the energy storage system reaches full discharge. The process then returns to the step of adjusting the hydroelectric power generation of the hydroelectric power generation equipment to the first target power generation when the SOC of the energy storage system reaches full discharge, until the connection between the microgrid and the main grid is restored. The proposed solution involves starting charging when the energy storage system reaches a fully discharged state, and only after it reaches a fully charged state does it begin discharging. Charging continues until the system reaches a fully discharged state, at which point it is recharged. This process of charging to full charge, discharging, and then recharging avoids frequent switching between charging and discharging modes, thereby increasing the system's lifespan.

[0107] This application also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the energy storage regulation method provided in any of the above embodiments.

[0108] This application also provides a computer-readable medium having a computer program stored thereon, which, when executed by a processor, implements the energy storage regulation method provided in any of the above embodiments.

[0109] Referring now to Figure 4, a schematic diagram of the structure of an electronic device 400 suitable for implementing this application is shown. The electronic device shown in Figure 4 is an example and should not impose any limitation on the function and scope of use of this application.

[0110] As shown in Figure 4, the electronic device 400 includes a Central Processing Unit (CPU) 401, which can perform various appropriate actions and processes based on programs stored in Read-Only Memory (ROM) 402 or programs loaded from storage section 408 into Random Access Memory (RAM) 403. The RAM 403 also stores various programs and data required for the operation of the electronic device 400. The CPU 401, ROM 402, and RAM 403 are interconnected via a bus 404. An Input / Output (I / O) interface 405 is also connected to the bus 404.

[0111] The following components are connected to I / O interface 405: an input section 406 including a keyboard, mouse, etc.; an output section 407 including a cathode ray tube (CRT), liquid crystal display (LCD), and speakers, etc.; a storage section 408 including a hard disk, etc.; and a communication section 409 including a network interface card such as a LAN card and a modem, etc. The communication section 409 performs communication processing via a network such as the Internet. A drive 410 is also connected to I / O interface 405 as needed. A removable medium 411, such as a disk, optical disk, magneto-optical disk, semiconductor memory, etc., is installed on drive 410 as needed so that computer programs read from it can be installed into storage section 408 as needed.

[0112] According to embodiments disclosed in this application, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments disclosed in this application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via communication section 409, and / or installed from removable medium 411. When the computer program is executed by central processing unit (CPU) 401, it performs the functions defined above in the system of this application.

[0113] It should be noted that the computer-readable medium shown in this application can be a computer-readable signal medium or a computer-readable storage medium, or any combination of the two. A computer-readable storage medium can be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. In a more possible implementation, examples of a computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), or flash memory, optical fiber, portable compact disc read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof. In this application, a computer-readable storage medium can be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, apparatus, or device. In this application, a computer-readable signal medium can include a data signal propagated in baseband or as part of a carrier wave, carrying computer-readable program code. The transmitted data signal can take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. The computer-readable signal medium can also be any computer-readable medium other than a computer-readable storage medium, which can send, propagate, or transmit a program for use by or in connection with an instruction execution system, apparatus, or device. The program code contained on the computer-readable medium can be transmitted using any suitable medium, including but not limited to: wireless, wireline, optical fiber, radio frequency (RF), or any suitable combination thereof.

[0114] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in a block diagram or flowchart, and combinations of blocks in a block diagram or flowchart, may be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0115] The modules and / or units described in this application can be implemented in software or hardware. The described modules and / or units can also be housed in a processor; for example, a processor may be described as including an acquisition module, a first adjustment module, a second adjustment module, and a return module. The names of these modules do not necessarily limit the module itself.

[0116] In another aspect, this application also provides a computer-readable medium, which may be included in the device described in the above embodiments; or it may exist alone and not assembled into the device. The computer-readable medium carries one or more programs, which, when executed by the device, cause the device to include:

[0117] After the connection between the microgrid and the main grid is disconnected, the state of charge (SOC) of the energy storage system is obtained. The energy storage system is a device within the microgrid, which also includes hydropower generation equipment and grid load equipment. When the SOC of the energy storage system reaches full charge, the hydropower generation capacity of the hydropower generation equipment is adjusted to a first target power output to supply power to the energy storage system and grid load equipment until the SOC of the energy storage system reaches full charge. When the SOC of the energy storage system reaches full charge, the hydropower generation capacity is adjusted to a second target power output to supply power to the grid load equipment until the SOC of the energy storage system reaches full discharge. The process then returns to the previous step of adjusting the hydropower generation capacity of the hydropower generation equipment to the first target power output when the SOC of the energy storage system reaches full discharge, until the connection between the microgrid and the main grid is restored.

[0118] According to the scheme of this application, after the connection between the microgrid and the main grid is disconnected, the state of charge (SOC) of the energy storage system is obtained. The energy storage system is a device within the microgrid, which also includes hydropower generation equipment and grid load equipment. When the SOC of the energy storage system reaches full charge, the hydropower generation power of the hydropower generation equipment is adjusted to a first target power to supply power to the energy storage system and grid load equipment until the SOC of the energy storage system reaches full charge. When the SOC of the energy storage system reaches full charge, the hydropower generation power is adjusted to a second target power to supply power to the grid load equipment until the SOC of the energy storage system reaches full discharge. The process then returns to the step of adjusting the hydropower generation power of the hydropower generation equipment to the first target power when the SOC of the energy storage system reaches full discharge, until the connection between the microgrid and the main grid is restored. The proposed solution involves starting charging when the energy storage system reaches a fully discharged state, and only after it reaches a fully charged state does it begin discharging. Charging continues until the system reaches a fully discharged state, at which point it is recharged. This process of charging to full charge, discharging, and then recharging avoids frequent switching between charging and discharging modes, thereby increasing the system's lifespan.

[0119] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the energy storage regulation method provided in any embodiment of this application.

[0120] In the implementation of the computer program product, computer program code for performing the operations of this application can be written in one or more programming languages ​​or a combination thereof. Programming languages ​​include object-oriented programming languages ​​such as Java, Smalltalk, and C++, as well as conventional procedural programming languages ​​such as C or similar languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer through any type of network—including a Local Area Network (LAN) or a Wide Area Network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0121] It should be understood that the various forms of processes shown above can be used to rearrange, add, or delete steps. For example, the steps described in this application can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this application can be achieved, and this is not limited herein.

Claims

1. An energy storage regulation method, comprising: After the connection between the microgrid and the main grid is disconnected, the state of charge of the energy storage system is obtained; wherein, the energy storage system is a device in the microgrid, and the microgrid also includes hydropower generation equipment and grid load equipment; When the energy storage system reaches a fully charged state, the hydropower generation power of the hydropower generation equipment is adjusted to the first target power generation power so that the hydropower generation equipment supplies power to the energy storage system and the grid load equipment until the energy storage system reaches a fully charged state. When the energy storage system reaches a fully charged state, the hydropower generation power is adjusted to a second target power generation power so that the hydropower generation equipment and the energy storage system can supply power to the grid load equipment until the energy storage system reaches a fully discharged state. When the energy storage system reaches full charge, the hydropower generation of the hydropower equipment is adjusted to the first target power generation until the connection between the microgrid and the main power grid is restored.

2. The method according to claim 1, wherein, The step of adjusting the hydropower generation power of the hydropower generation equipment to a first target power generation power, so that the hydropower generation equipment supplies power to the energy storage system and the grid load equipment, until the energy storage system reaches a fully charged state, includes: Obtain the hydropower generation capacity and the load absorption capacity of the power grid load equipment; The energy storage regulation cycle is determined based on the capacity of the energy storage system, the hydropower generation capacity, and the load absorption capacity. During the first energy storage regulation cycle, the hydropower generation power is adjusted to the first target power generation power; wherein, the first target power generation power is used to indicate that the ratio of the hydropower generation power to the load absorption power is a first ratio, and the first ratio is greater than a preset value; The next energy storage regulation cycle after the first energy storage regulation cycle is determined as the second energy storage regulation cycle. During the second energy storage regulation cycle, the hydropower generation power, the load absorption power, and the state of charge of the energy storage system are obtained. Based on the ratio of the hydropower generation power of the second energy storage regulation cycle to the load absorption power of the second energy storage regulation cycle, the hydropower generation power after the first energy storage regulation cycle is adjusted to the first target power generation power, so that the hydropower generation equipment supplies power to the energy storage system and the grid load equipment until the energy storage system reaches a fully charged state.

3. The method according to claim 2, wherein, The step of adjusting the hydropower generation power after the first energy storage regulation cycle to the first target power generation power based on the ratio of the hydropower generation power of the second energy storage regulation cycle to the load absorption power of the second energy storage regulation cycle, so as to enable the hydropower generation equipment to supply power to the energy storage system and the grid load equipment, until the state of charge of the energy storage system reaches a fully charged state, includes: If the ratio of the hydropower generation in the second energy storage regulation cycle to the load absorption power in the second energy storage regulation cycle is less than the second ratio or greater than the third ratio, then the second energy storage regulation cycle is taken as a new first energy storage regulation cycle, and the process of adjusting the hydropower generation to the first target power generation in the first energy storage regulation cycle is resumed until the state of charge of the energy storage system reaches full charge; wherein, the second ratio is less than the first ratio, the third ratio is greater than the first ratio, and both the second ratio and the third ratio are greater than preset values; If the ratio of the hydropower generation in the second energy storage regulation cycle to the load absorption power in the second energy storage regulation cycle is greater than or equal to the second ratio and less than or equal to the third ratio, then the next cycle of the second energy storage regulation cycle is taken as the new second energy storage regulation cycle, and the process of obtaining the hydropower generation in the second energy storage regulation cycle, the load absorption power in the second energy storage regulation cycle, and the state of charge of the energy storage system is repeated until the state of charge of the energy storage system reaches full charge.

4. The method according to claim 2, wherein, The step of adjusting the hydropower generation power to a second target power generation power so that the hydropower generation equipment and the energy storage system can supply power to the grid load equipment until the energy storage system reaches a fully charged state includes: During the third energy storage regulation cycle, the hydropower generation power is adjusted to the second target power generation power; wherein, the second target power generation power is used to indicate that the ratio of the hydropower generation power to the load absorption power is a fourth ratio, and the fourth ratio is less than a preset value; The next energy storage regulation cycle after the third energy storage regulation cycle is determined as the fourth energy storage regulation cycle. During the fourth energy storage regulation cycle, the hydropower generation, the load absorption power, and the state of charge of the energy storage system are obtained. Based on the ratio of the hydropower generation power of the fourth energy storage regulation cycle to the load absorption power of the fourth energy storage regulation cycle, the hydropower generation power after the third energy storage regulation cycle is adjusted to the second target power generation power, so that the hydropower generation equipment and the energy storage system can supply power to the grid load equipment until the energy storage system reaches a fully charged state.

5. The method according to claim 4, wherein, The step of adjusting the hydropower generation power after the third energy storage regulation cycle to the second target power generation power based on the ratio of the hydropower generation power of the fourth energy storage regulation cycle to the load absorption power of the fourth energy storage regulation cycle, so as to enable the hydropower generation equipment and the energy storage system to supply power to the grid load equipment, until the state of charge of the energy storage system reaches full discharge, includes: If the ratio of the hydropower generation in the fourth energy storage regulation cycle to the load absorption power in the fourth energy storage regulation cycle is less than the fifth ratio or greater than the sixth ratio, then the fourth energy storage regulation cycle is taken as a new third energy storage regulation cycle, and the process of adjusting the hydropower generation to the second target power generation in the third energy storage regulation cycle is resumed until the state of charge of the energy storage system reaches full discharge; wherein, the fifth ratio is less than the fourth ratio, the sixth ratio is greater than the fourth ratio, and both the fifth ratio and the sixth ratio are less than preset values; If the ratio of the hydropower generation in the fourth energy storage regulation cycle to the load absorption power in the fourth energy storage regulation cycle is greater than or equal to the fifth ratio and less than or equal to the sixth ratio, then the next cycle of the fourth energy storage regulation cycle is taken as the new fourth energy storage regulation cycle, and the process of obtaining the hydropower generation, the load absorption power, and the state of charge of the energy storage system in the fourth energy storage regulation cycle is resumed until the state of charge of the energy storage system reaches full discharge.

6. The method according to claim 2, wherein, Determining the energy storage regulation cycle based on the capacity of the energy storage system, the hydropower generation capacity, and the load absorption capacity includes: The power deviation is determined based on the hydropower generation capacity and the load absorption capacity. The initial adjustment cycle is determined based on the capacity of the energy storage system and the power deviation. If the initial adjustment period is less than or equal to the preset adjustment period, then the preset adjustment period is determined as the energy storage adjustment period; If the initial adjustment period is greater than the preset adjustment period, then the initial adjustment period is determined as the energy storage adjustment period.

7. The method according to claim 6, wherein, Determining the initial adjustment period based on the capacity of the energy storage system and the power deviation includes: The initial adjustment period is determined by the ratio of half the capacity of the energy storage system to the power deviation.

8. An energy storage and regulation device, comprising: The acquisition module is configured to acquire the state of charge of the energy storage system after the connection between the microgrid and the main grid is disconnected; wherein, the energy storage system is a device in the microgrid, and the microgrid also includes hydropower generation equipment and grid load equipment; The first adjustment module is configured to adjust the hydropower generation power of the hydropower generation equipment to a first target power when the state of charge of the energy storage system reaches a fully discharged state, so that the hydropower generation equipment supplies power to the energy storage system and the grid load equipment until the state of charge of the energy storage system reaches a fully charged state. The second adjustment module is configured to adjust the hydropower generation power to a second target power generation power when the energy storage system reaches a fully charged state, so that the hydropower generation equipment and the energy storage system can supply power to the grid load equipment until the energy storage system reaches a fully discharged state. The return module is configured to return to the execution of the step described above, which involves adjusting the hydropower output of the hydropower generation equipment to the first target output power when the state of charge of the energy storage system reaches full discharge, until the connection between the microgrid and the main power grid is restored.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor, when executing the program, implements the energy storage regulation method as described in any one of claims 1-7.

10. A computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the energy storage regulation method as described in any one of claims 1-7.

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