Energy storage regulation method, device, electronic equipment and storage medium

Abstract

The present application discloses an energy storage regulation method, device, electronic device and storage medium, which are applied to the field of hydroelectric power generation technology. The method includes: obtaining the state of charge of the energy storage system after the connection between the microgrid and the main grid is disconnected; when the state of charge of the energy storage system reaches the full discharge state, adjusting the hydroelectric power of the hydroelectric equipment to the first target power, so that the hydroelectric equipment supplies power to the energy storage system and the grid load equipment until the energy storage system is fully charged; when the state of charge of the energy storage system reaches the full charge state, adjusting the hydroelectric power to the second target power, so that the hydroelectric equipment and the energy storage system supply power to the grid load equipment until the energy storage system is fully discharged; returning to the step of charging in the full discharge state until the connection between the microgrid and the main grid is restored. That is, the present application avoids the frequent switching between the charging and discharging working modes of the energy storage system, and increases the service life of the energy storage system.

Description

Technical Field

[0001] The present application relates to the technical field of hydropower generation, and in particular to an energy storage regulation method, device, electronic equipment and storage medium. Background Art

[0002] In hydropower generation, the hydropower energy storage microgrid includes a small hydropower station, an energy storage system, and a power supply area, also known as a water storage microgrid, or microgrid for short. The water storage microgrid can achieve self-sufficiency in energy in the power supply area. When the water storage microgrid is disconnected from the main power grid and becomes an isolated grid, due to the uncertainty of hydropower generation and the volatility of the load in the microgrid, the power generation power of the microgrid and the load demand power will continue to change. If the hydropower generation power is not adjusted in time, it will cause the generator to lose step and cause losses.

[0003] At present, energy storage systems can store energy when electricity demand is low and release energy when electricity demand is high, thereby adjusting the supply and demand relationship between hydropower generation and grid load. By utilizing the regulating function of the energy storage system, when the hydropower generation power is greater than the load absorption power, the energy storage system is used to store excess electricity. When the hydropower generation power is less than the load absorption power, the energy storage system is used to release electricity for supplementary power generation.

[0004] However, since the power generation and load demand of the microgrid will continue to change, the current energy storage system adjustment method needs to frequently adjust the charging and discharging mode of the energy storage system to cope with load fluctuations. The frequent switching between the charging and discharging working modes of the energy storage system will reduce the service life of the energy storage system. Summary of the invention

[0005] The present application provides an energy storage regulation method, device, electronic device and storage medium to solve the problem in the prior art that frequent switching between charging and discharging working modes of an energy storage system will reduce the service life of the energy storage system.

[0006] In a first aspect, the present application provides an energy storage regulation method, the method comprising:

[0007] After the microgrid is disconnected from the main power grid, the charge state 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 power grid load equipment;

[0008] When the state of charge of the energy storage system reaches a fully discharged state, adjusting the hydroelectric power generation power of the hydroelectric power generation equipment to a first target power generation power, so that the hydroelectric power 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;

[0009] When the state of charge of the energy storage system reaches a fully charged state, adjusting the hydroelectric power generation power to a second target power generation power, so that the hydroelectric power 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 a fully discharged state;

[0010] Return to the step of "adjusting the hydroelectric power generation power of the hydroelectric power generation equipment to the first target power generation power when the state of charge of the energy storage system reaches the full discharge state" until the connection between the microgrid and the main grid is restored.

[0011] In a second aspect, the present application provides an energy storage regulating device, comprising:

[0012] An acquisition module, used to acquire the charge state of the energy storage system after the microgrid is disconnected from the main power grid; wherein the energy storage system is a device in the microgrid, and the microgrid also includes hydropower generation equipment and power grid load equipment;

[0013] A first regulating module is used to regulate the hydroelectric power generation power of the hydroelectric power generation equipment to a first target power generation power when the state of charge of the energy storage system reaches a fully discharged state, so that the hydroelectric power 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;

[0014] A second regulating module is used to regulate the hydroelectric power 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 hydroelectric power 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 a fully discharged state;

[0015] The return module is used to return to the step of "adjusting the hydroelectric power generation power of the hydroelectric power generation equipment to the first target power generation power when the charge state of the energy storage system reaches the full discharge state" until the connection between the microgrid and the main grid is restored.

[0016] In a third aspect, the present application provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the energy storage regulation method as described in any embodiment of the present application is implemented.

[0017] In a fourth aspect, the present application further 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 the present application.

[0018] In a fifth aspect, the present application provides a computer program product, including a computer program, which, when executed by a processor, implements the energy storage regulation method as described in any embodiment of the present application.

[0019] The solution of the present application obtains the charge state 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 hydroelectric power generation equipment and grid load equipment; when the charge state of the energy storage system reaches a full discharge state, the hydroelectric power generation power of the hydroelectric power generation equipment is adjusted to a first target power generation power, so that the hydroelectric power generation equipment supplies power to the energy storage system and the grid load equipment, until the charge state of the energy storage system reaches a full charge state; when the charge state of the energy storage system reaches a full charge state, the hydroelectric power generation power is adjusted to a second target power generation power, so that the hydroelectric power generation equipment and the energy storage system supply power to the grid load equipment, until the charge state of the energy storage system reaches a full discharge state; and returns to execute the step of "when the charge state of the energy storage system reaches a full discharge state, adjusting the hydroelectric power generation power of the hydroelectric power generation equipment to the first target power generation power" until the connection between the microgrid and the main grid is restored. That is, the solution of the present application starts charging when the state of charge of the energy storage system reaches the full discharge state, and the energy storage system starts discharging after the energy storage system reaches the full charge state, and then charges the energy storage system after the energy storage system is discharged to the full discharge state. Therefore, the energy storage system is only discharged after being charged to the full charge state, and is charged after being discharged to the full discharge state, thereby avoiding frequent switching between the charging and discharging working modes of the energy storage system, thereby increasing the service life of the energy storage system. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a flow chart of the energy storage regulation method provided by the present application;

[0022] Figure 2 is another flow chart of the energy storage regulation method provided by the present application;

[0023] Figure 3 It is a structural schematic diagram of the energy storage regulating device provided by the present application;

[0024] Figure 4 It is a structural schematic diagram of the electronic device provided by this application. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0026] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0027] Figure 1 This is a flow chart of the energy storage regulation method provided by the present application. The method can be executed by the energy storage regulation device provided by the present application, and the device can be implemented in software and / or hardware. In a specific embodiment, the device can be integrated in an electronic device. For example, the device can be integrated in a computer. The following embodiments will be described by taking the device integrated in an electronic device as an example. Figure 1 , the method may specifically include the following steps:

[0028] Step 101, after the microgrid is disconnected from the main power grid, the charge state of the energy storage system is obtained.

[0029] Among them, the energy storage system is a device in the microgrid, which also includes hydropower generation equipment and grid load equipment.

[0030] Specifically, after the microgrid is disconnected from the main grid, the microgrid becomes an isolated grid. At this time, the microgrid needs to achieve self-sufficiency in energy within the microgrid area, that is, the power generation of the microgrid can meet the electricity demand within the microgrid. The microgrid includes an energy storage system, hydropower equipment, and grid load equipment, wherein the energy storage system can store the remaining energy when the energy generated by the hydropower equipment can meet the energy consumed by the grid load equipment and generates surplus energy. In addition, when the energy generated by the hydropower equipment cannot meet the energy consumed by the grid load equipment, the energy storage system can transfer the internally stored energy to the grid load equipment to meet the energy consumption of the grid load equipment. The state of charge (SOC) of the energy storage system is used to indicate the remaining power of the energy storage system, which is usually expressed as a percentage of the remaining power to the total power. For example, the state of charge of the energy storage system is SOC=50%. After the microgrid is disconnected from the main grid, the state of charge of the energy storage system is obtained, that is, the remaining power of the energy storage system is obtained. The initial state of charge of the energy storage system refers to a state in which there is basically no residual power in the energy storage system. For example, the initial state of charge of the energy storage system is SOC = 10%. In one implementation of the present application, when the state of charge of the energy storage system reaches the initial state of charge, the connection between the microgrid and the main grid is disconnected to facilitate the charging of the energy storage system.

[0031] Step 102, when the state of charge of the energy storage system reaches a fully discharged state, the hydroelectric power generation power of the hydroelectric power generation equipment is adjusted to a first target power generation power, so that the hydroelectric power 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.

[0032] Specifically, the full discharge state refers to the state in which the energy storage system discharges a large amount of stored electricity during the discharge process of the energy storage system. For example, the full discharge state may be that the SOC of the energy storage system is less than or equal to 20%. The full charge state refers to the state in which the energy storage system stores a large amount of electricity during the charging process of the energy storage system. For example, the full charge state may be that the SOC of the energy storage system is greater than or equal to 80%. When the hydroelectric power generation power of the hydroelectric power generation equipment is the first target power generation power, the hydroelectric power generation equipment can supply power to the energy storage system and the grid load equipment so that the energy storage system can store the remaining electric energy. For example, the first target power generation power can be a fixed value or 1.5 times the current grid load equipment. When the charge state of the energy storage system reaches the full discharge state, the hydroelectric power generation power of the hydroelectric power generation equipment is adjusted to the first target power generation power so that the hydroelectric power generation equipment can charge the energy storage system while meeting the power supply demand of the grid load equipment until the charge state of the energy storage system reaches the full charge state. The method for adjusting the hydroelectric power of the hydroelectric equipment may be to adjust the opening of the guide vanes in the hydroelectric equipment, or to adjust the opening of the ball valve in the hydroelectric equipment, etc., and this method is not limited to this.

[0033] Optionally, adjusting the hydroelectric power of the hydroelectric power generation equipment to the first target power generation so that the hydroelectric power generation equipment supplies power to the energy storage system and the grid load equipment until the charge state of the energy storage system reaches a full charge state can be achieved through steps 21 to 25.

[0034] Step 21, obtaining the hydroelectric power generation power and the load absorption power of the power grid load equipment.

[0035] Specifically, the hydroelectric power is the power generated by the hydroelectric power generation equipment, and the load absorption power is the power consumed by the grid load equipment. When the state of charge of the energy storage system reaches the full discharge state, the hydroelectric power and the load absorption power of the grid load equipment are obtained.

[0036] Step 22, determining the energy storage regulation cycle according to the capacity of the energy storage system, the hydroelectric power generation power and the load absorption power.

[0037] Specifically, when adjusting the hydroelectric power generation equipment, after issuing an instruction to adjust the hydroelectric power generation, it takes a certain amount of time to adjust the operation of the hydroelectric power generation equipment. In this process, adjusting the hydroelectric power generation equipment too quickly will generate a large water pressure, causing the equipment to be easily damaged. For example, when adjusting the hydroelectric power generation equipment by closing the guide vane opening, closing the guide vane too quickly will generate a large water hammer pressure, thereby damaging the hydroelectric power generation equipment. Therefore, after issuing an instruction to adjust the hydroelectric power generation, it is not appropriate to issue an adjustment instruction for the hydroelectric power generation again within the energy storage adjustment cycle to avoid the equipment being damaged by the equipment that adjusts the hydroelectric power generation running too fast. The energy storage adjustment cycle is the time from issuing an instruction to adjust the hydroelectric power generation to completing the adjustment of the hydroelectric power generation. Since the product of power and time is the total amount of energy, the energy storage adjustment cycle can be determined based on the capacity of the energy storage system, the hydroelectric power generation, and the load absorption power. For example, after determining the power difference between hydroelectric power generation and load absorption power, the ratio of 30% of the capacity of the energy storage system to the power difference is used as the energy storage regulation period. That is, theoretically, the remaining power in the energy storage system can be increased by 30% within the energy storage regulation period, and within this period, the regulation time of hydroelectric power generation is sufficient.

[0038] Optionally, determining the energy storage regulation period according to the capacity of the energy storage system, the hydroelectric power generation power, and the load absorption power can be implemented through steps 221 to 224.

[0039] Step 221, determining the power deviation according to the hydroelectric power generation and the load absorption power.

[0040] Specifically, the power deviation is determined according to the hydroelectric power and the load absorption power, that is, the power deviation can indicate the power value of the hydroelectric power used to charge the energy storage system.

[0041] Exemplarily, determining the power deviation according to the hydroelectric power generation and the load absorption power can be implemented by Formula 1.

[0042] Formula 1

[0043] in, is the power deviation, is the hydroelectric power, is the load absorption power.

[0044] Step 222: determining an initial adjustment period according to the capacity of the energy storage system and the power deviation.

[0045] Specifically, the initial adjustment period is determined according to the capacity of the energy storage system and the power deviation, so that the capacity of the energy storage system can reach expectations within the initial adjustment period.

[0046] Optionally, a ratio of half the capacity of the energy storage system to the power deviation is determined as the initial adjustment period.

[0047] Specifically, the ratio of half of the capacity of the energy storage system to the power deviation is used as the initial adjustment period, that is, theoretically, the remaining power in the energy storage system can be increased by 50% within the initial adjustment period.

[0048] Exemplarily, determining the ratio of half the capacity of the energy storage system to the power deviation as the initial regulation period can be achieved by Formula 2.

[0049] Formula 2

[0050] Where t is the initial adjustment period, Q is the maximum capacity of the energy storage system, is the power deviation.

[0051] Step 223: 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.

[0052] Specifically, the preset adjustment period is a preset adjustment period that can ensure sufficient adjustment time for the hydroelectric power generation, that is, when the hydroelectric power generation is adjusted according to the preset adjustment period, it can avoid the situation where the hydroelectric power generation equipment is adjusted too quickly to generate a large water pressure, which makes the equipment easy to be damaged. For example, the preset adjustment period can be 100ms. Therefore, 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, thereby ensuring sufficient adjustment time for the hydroelectric power generation.

[0053] Step 224: If the initial adjustment period is greater than the preset adjustment period, the initial adjustment period is determined as the energy storage adjustment period.

[0054] Specifically, if the initial adjustment cycle is greater than the preset adjustment cycle, the initial adjustment cycle can avoid the situation where too fast adjustment of the hydropower equipment will generate a large water pressure, causing the equipment to be easily damaged. At this time, the initial adjustment cycle is determined as the energy storage adjustment cycle.

[0055] Exemplarily, 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 by formula 3.

[0056] Formula 3

[0057] Among them, T is the energy storage regulation period, Q is the maximum capacity of the energy storage system, is the power deviation.

[0058] In this embodiment, the energy storage regulation cycle is determined with 100ms as the preset regulation cycle, which can reserve sufficient regulation time for the regulation of the hydropower equipment, thereby ensuring the safety of the hydropower equipment. At the same time, the initial regulation cycle is calculated according to the capacity and power deviation of the energy storage system, and then the energy storage regulation cycle is obtained, which can reduce the regulation of the hydropower equipment while ensuring that the hydraulic regulation response speed meets the needs of the energy storage system.

[0059] Step 23, within the first energy storage adjustment period, adjusting the hydroelectric power generation power to the first target power generation power.

[0060] The first target power generation 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.

[0061] Specifically, the preset value is 1, so the ratio of the hydroelectric power generation to the load absorption power is a first ratio, and when the first ratio is greater than 1, the hydroelectric power generation can charge the energy storage system. For example, the first ratio can be 1.3. The first energy storage adjustment cycle is the first energy storage adjustment cycle after the energy storage system starts charging. In the first energy storage adjustment cycle, the hydroelectric power generation is adjusted to the first target power generation, and the hydroelectric power generation equipment starts to charge the energy storage system.

[0062] For example, in the first energy storage regulation cycle, the hydroelectric power is regulated to 1.3 times the load absorption power.

[0063] Step 24, determining the next energy storage regulation cycle of the first energy storage regulation cycle as the second energy storage regulation cycle, and obtaining the hydroelectric power of the second energy storage regulation cycle, the load absorption power of the second energy storage regulation cycle, and the charge state of the energy storage system in the second energy storage regulation cycle.

[0064] Specifically, in the next energy storage regulation cycle of the first energy storage regulation cycle, that is, after the end of the first energy storage regulation cycle, the second energy storage regulation cycle is entered, and the hydropower generation power, load absorption power and charge state of the energy storage system at the start time of the second energy storage regulation cycle are obtained.

[0065] Exemplarily, the energy storage regulation cycle is 100ms. After the first energy storage regulation cycle, the next energy storage regulation cycle of 100ms is entered, which is the second energy storage regulation cycle. At this time, the hydroelectric power generation, load absorption power and charge state of the energy storage system at the start of the second energy storage regulation cycle are obtained.

[0066] Step 25, according to the ratio of the hydroelectric power generation power of the second energy storage regulation cycle to the load absorption power of the second energy storage regulation cycle, the hydroelectric power generation power after the first energy storage regulation cycle is adjusted to the first target power generation power, so that the hydroelectric power generation equipment supplies power to the energy storage system and the grid load equipment until the charge state of the energy storage system reaches a full charge state.

[0067] Specifically, since the hydroelectric power generation process is full of uncontrollable factors, such as the amount of water, etc., large deviations are prone to occur when adjusting the hydroelectric power. According to the ratio of the hydroelectric power generation power of the second energy storage adjustment cycle to the load absorption power of the second energy storage adjustment cycle, the deviation between the ratio and the first ratio at this time is determined. The deviation is processed, for example, in the second energy storage adjustment cycle, an instruction to adjust the hydroelectric power generation power to the first target power generation power is sent again, so as to adjust the hydroelectric power generation power after the first energy storage adjustment cycle to the first target power generation power, so that the hydroelectric power 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 full charge state.

[0068] Optionally, based on the ratio of the hydroelectric power of the second energy storage regulation cycle to the load absorption power of the second energy storage regulation cycle, the hydroelectric power after the first energy storage regulation cycle is adjusted to the first target power, so that the hydroelectric power generation equipment supplies power to the energy storage system and the grid load equipment until the charge state of the energy storage system reaches a full charge state. This can be achieved through steps 251 to 252.

[0069] Step 251, if the ratio of the hydroelectric power 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, the second energy storage regulation cycle is used as the new first energy storage regulation cycle, and the process returns to step 23 until the state of charge of the energy storage system reaches a full charge state.

[0070] The second ratio is smaller than the first ratio, the third ratio is larger than the first ratio, and both the second ratio and the third ratio are larger than a preset value.

[0071] Specifically, the second ratio is used to indicate the minimum acceptable deviation when the hydroelectric power is adjusted during the charging process of the energy storage system. The third ratio is used to indicate the maximum acceptable deviation when the hydroelectric power is adjusted during the charging process of the energy storage system. If the ratio of the hydroelectric power of the second energy storage adjustment cycle to the load absorption power of the second energy storage adjustment cycle is less than the second ratio, or greater than the third ratio, then the deviation between the ratio and the first ratio is unacceptable. Therefore, at this time, the second energy storage adjustment cycle is used as the new first energy storage adjustment cycle, and the step of adjusting the hydroelectric power to the first target power generation is returned to execute, so that the hydroelectric power generation equipment supplies power to the energy storage system and the grid load equipment until the charge state of the energy storage system reaches a full charge state.

[0072] Exemplarily, the first ratio is 1.3, the second ratio is 1.1, and the third ratio is 1.5. If the ratio of the hydroelectric power generation power of the second energy storage regulation cycle to the load absorption power of the second energy storage regulation cycle is less than 1.1, or greater than 1.5, the second energy storage regulation cycle is used as the new first energy storage regulation cycle, and the process returns to step 23 until the state of charge of the energy storage system reaches the full charge state.

[0073] Step 252: If the ratio of the hydroelectric power 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, the next cycle of the second energy storage regulation cycle is used as a new second energy storage regulation cycle, and the process returns to the step of "obtaining the hydroelectric power 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" until the state of charge of the energy storage system reaches a fully charged state.

[0074] Specifically, if the ratio of the hydroelectric power 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, it means that the deviation is an acceptable deviation and the hydroelectric power generation equipment can charge the energy storage system. At this time, the next cycle of the second energy storage regulation cycle is used as a new second energy storage regulation cycle, and the step of obtaining the hydroelectric power generation power of the second energy storage regulation cycle, the load absorption power of the second energy storage regulation cycle, and the charge state of the energy storage system is returned, that is, the judgment process of the next cycle is entered to ensure that the energy storage system is in a charged state until the charge state of the energy storage system reaches a full charge state.

[0075] During the charging process of the energy storage system, the hydropower equipment is further fine-tuned, that is, multiple energy storage regulation cycles are adjusted separately, thereby further ensuring that the hydropower equipment charges the energy storage system and the charging process of the energy storage system. It is further ensured that the energy storage system will not produce a discharge process when it is not fully charged. Therefore, the frequent conversion of the energy storage system between the charging and discharging working modes is further avoided, and the service life of the energy storage system is increased.

[0076] Exemplarily, the first ratio is 1.3, the second ratio is 1.1, and the third ratio is 1.5. If the ratio of the hydroelectric power 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 1.1 and less than or equal to 1.5, the next cycle of the second energy storage regulation cycle is used as a new second energy storage regulation cycle, and the step of obtaining the hydroelectric power 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 is returned until the state of charge of the energy storage system reaches a full charge state.

[0077] Step 103, when the state of charge of the energy storage system reaches a fully charged state, the hydroelectric power generation power is adjusted to a second target power generation power, so that the hydroelectric power 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 a fully discharged state.

[0078] Specifically, when the hydroelectric power generation power is the second target power generation power, the hydroelectric power generation equipment is insufficient to provide the power required by the grid load equipment. At this time, the energy storage system is required to provide the remaining electric energy in the energy storage system to the grid load equipment to meet the power supply demand of the grid load equipment. For example, the second target power generation power can be a fixed value, or it can be 0.8 times the current grid load equipment. When the state of charge of the energy storage system reaches the fully charged state, the hydroelectric power generation power of the hydroelectric power generation equipment is adjusted to the second target power generation power, so that the hydroelectric power generation equipment and the energy storage system both supply power to the grid load equipment to meet the power supply demand of the grid load equipment, until the state of charge of the energy storage system reaches the fully discharged state.

[0079] Step 104, returning to step 102, until the connection between the microgrid and the main grid is restored.

[0080] Specifically, after the state of charge of the energy storage system reaches the full discharge state, the process returns to step 102, that is, the hydroelectric power of the hydroelectric power generation equipment is adjusted to the first target power, so that the hydroelectric power generation equipment supplies power to the energy storage system and the grid load equipment, thereby completing the energy storage system's recharging process. Therefore, in the above process, when the state of charge of the energy storage system reaches the full discharge state, the energy storage system begins to be charged, and the energy storage system begins to discharge after the energy storage system reaches the full charge state, and the energy storage system is charged again after the energy storage system is discharged to the full discharge state. By looping the above process, the energy storage system is discharged only after being charged to the full charge state after the connection between the microgrid and the main grid is disconnected, and is charged after being discharged to the full discharge state, until the connection between the microgrid and the main grid is restored.

[0081] The solution of the present application obtains the charge state 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 hydroelectric power generation equipment and grid load equipment; when the charge state of the energy storage system reaches a full discharge state, the hydroelectric power generation power of the hydroelectric power generation equipment is adjusted to a first target power generation power, so that the hydroelectric power generation equipment supplies power to the energy storage system and the grid load equipment, until the charge state of the energy storage system reaches a full charge state; when the charge state of the energy storage system reaches a full charge state, the hydroelectric power generation power is adjusted to a second target power generation power, so that the hydroelectric power generation equipment and the energy storage system supply power to the grid load equipment, until the charge state of the energy storage system reaches a full discharge state; and returns to execute the step of "when the charge state of the energy storage system reaches a full discharge state, adjusting the hydroelectric power generation power of the hydroelectric power generation equipment to the first target power generation power" until the connection between the microgrid and the main grid is restored. That is, the solution of the present application starts charging when the state of charge of the energy storage system reaches the full discharge state, and the energy storage system starts discharging after the energy storage system reaches the full charge state, and then charges the energy storage system after the energy storage system is discharged to the full discharge state. Therefore, the energy storage system is only discharged after being charged to the full charge state, and is charged after being discharged to the full discharge state, thereby avoiding frequent switching between the charging and discharging working modes of the energy storage system, thereby increasing the service life of the energy storage system.

[0082] Figure 2 is another flow chart of the energy storage regulation method provided by the present application. Figure 1 Based on the illustrated embodiment and various optional implementation schemes, the discharging process of the energy storage system when the state of charge of the energy storage system reaches the full charge state is described in detail. Figure 2 As shown, the method may include the following steps:

[0083] Step 201, after the microgrid is disconnected from the main power grid, the charge state of the energy storage system is obtained.

[0084] Step 202, when the state of charge of the energy storage system reaches a fully discharged state, the hydroelectric power generation power of the hydroelectric power generation equipment is adjusted to a first target power generation power, so that the hydroelectric power 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.

[0085] Step 203: In the third energy storage adjustment cycle, the hydroelectric power generation power is adjusted to the second target power generation power.

[0086] The second target power generation 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.

[0087] Specifically, the preset value is 1, so the ratio of the hydroelectric power to the load absorption power is the fourth ratio, and when the fourth ratio is less than 1, the hydroelectric power is insufficient to provide sufficient power to the grid load equipment, and 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 adjustment cycle is the first energy storage adjustment cycle after the energy storage system starts discharging. When the state of charge of the energy storage system reaches the fully charged state, within the third energy storage adjustment cycle, the hydroelectric power is adjusted to the second target power generation power, and the hydroelectric equipment and the energy storage system jointly supply power to the grid load equipment.

[0088] Exemplarily, in the third energy storage regulation cycle, the hydroelectric power is regulated to 0.7 times the load absorption power.

[0089] Step 204, determining the next energy storage regulation cycle of the third energy storage regulation cycle as the fourth energy storage regulation cycle, and obtaining the hydroelectric power of the fourth energy storage regulation cycle, the load absorption power of the fourth energy storage regulation cycle, and the charge state of the energy storage system in the fourth energy storage regulation cycle.

[0090] Specifically, in the next energy storage regulation cycle of the third energy storage regulation cycle, that is, after the end of the third energy storage regulation cycle, the fourth energy storage regulation cycle is entered, and the hydropower generation power, load absorption power and charge state of the energy storage system at the start time of the fourth energy storage regulation cycle are obtained.

[0091] Exemplarily, the energy storage regulation cycle is 200ms. After the third energy storage regulation cycle, the next energy storage regulation cycle of 200ms is entered, which is the fourth energy storage regulation cycle. At this time, the hydropower generation power, load absorption power and charge state of the energy storage system at the start time of the fourth energy storage regulation cycle are obtained.

[0092] Step 205, according to the ratio of the hydroelectric power of the fourth energy storage regulation cycle to the load absorption power of the fourth energy storage regulation cycle, the hydroelectric power after the third energy storage regulation cycle is adjusted to the second target power, so that the hydroelectric equipment and the energy storage system supply power to the grid load equipment until the charge state of the energy storage system reaches the full discharge state.

[0093] Specifically, according to the ratio of the hydroelectric power generation power in the fourth energy storage regulation cycle to the load absorption power in the fourth energy storage regulation cycle, the deviation between the ratio and the fourth ratio is determined. The deviation is processed, for example, in the fourth energy storage regulation cycle, an instruction to adjust the hydroelectric power generation power to the second target power generation power is sent again, so as to adjust the hydroelectric power generation power after the third energy storage regulation cycle to the second target power generation power, so that the hydroelectric power 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 the full discharge state.

[0094] Optionally, based on the ratio of the hydroelectric power of the fourth energy storage regulation cycle to the load absorption power of the fourth energy storage regulation cycle, the hydroelectric power after the third energy storage regulation cycle is adjusted to the second target power, so that the hydroelectric power generation equipment and the energy storage system supply power to the grid load equipment until the charge state of the energy storage system reaches the full discharge state, which can be achieved through steps 51 to 52.

[0095] Step 51, if the ratio of the hydroelectric power generation power of the fourth energy storage regulation cycle to the load absorption power of the fourth energy storage regulation cycle is less than the fifth ratio, or greater than the sixth ratio, the fourth energy storage regulation cycle is used as the new third energy storage regulation cycle, and the process returns to step 203 until the state of charge of the energy storage system reaches the full discharge state.

[0096] The fifth ratio is smaller than the fourth ratio, the sixth ratio is larger than the fourth ratio, and both the fifth ratio and the sixth ratio are smaller than a preset value.

[0097] Specifically, the fifth ratio is used to indicate the minimum acceptable deviation when the hydroelectric power is adjusted during the discharge of the energy storage system. The sixth ratio is used to indicate the maximum acceptable deviation when the hydroelectric power is adjusted during the discharge of the energy storage system. If the ratio of the hydroelectric power of the fourth energy storage adjustment cycle to the load absorption power of the fourth energy storage adjustment cycle is less than the fifth ratio, or greater than the sixth ratio, then the deviation between the ratio and the fourth ratio is unacceptable. Therefore, at this time, the fourth energy storage adjustment cycle is used as the new third energy storage adjustment cycle, and the step of adjusting the hydroelectric power to the second target power generation is returned to execute, so that the hydroelectric equipment and the energy storage system supply power to the grid load equipment until the charge state of the energy storage system reaches the full discharge state.

[0098] Exemplarily, the fourth ratio is 0.7, the fifth ratio is 0.5, and the sixth ratio is 0.9. If the ratio of the hydroelectric power generation power of the fourth energy storage regulation cycle to the load absorption power of the fourth energy storage regulation cycle is less than 0.5, or greater than 0.9, the fourth energy storage regulation cycle is used as the new third energy storage regulation cycle, and the process returns to step 203 until the state of charge of the energy storage system reaches the full charge state.

[0099] Step 52, if the ratio of the hydroelectric power generation power of the fourth energy storage regulation cycle 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 next cycle of the fourth energy storage regulation cycle is used as a new fourth energy storage regulation cycle, and the process returns to execute the step of "obtaining the hydroelectric power generation power of the fourth energy storage regulation cycle, the load absorption power of the fourth energy storage regulation cycle, and the state of charge of the energy storage system within the fourth energy storage regulation cycle" until the state of charge of the energy storage system reaches a full discharge state.

[0100] Specifically, if the ratio of the hydroelectric power generation power of the fourth energy storage regulation cycle 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, it means that the deviation is an acceptable deviation, and the hydroelectric power generation equipment and the energy storage system jointly supply power to the grid load equipment. At this time, the next cycle of the fourth energy storage regulation cycle is used as a new fourth energy storage regulation cycle, and the step of obtaining the hydroelectric power generation power of the fourth energy storage regulation cycle, the load absorption power of the fourth energy storage regulation cycle, and the charge state of the energy storage system is returned, that is, the judgment process of entering the next cycle is entered to ensure that the energy storage system is in a discharging state until the charge state of the energy storage system reaches a full discharge state.

[0101] Exemplarily, the fourth ratio is 0.7, the fifth ratio is 0.5, and the sixth ratio is 0.9. If the ratio of the hydroelectric power generation power of the fourth energy storage regulation cycle to the load absorption power of the fourth energy storage regulation cycle is greater than or equal to 0.5 and less than or equal to 0.9, the next cycle of the fourth energy storage regulation cycle is used as a new fourth energy storage regulation cycle, and the step of obtaining the hydroelectric power generation power of the fourth energy storage regulation cycle, the load absorption power of the fourth energy storage regulation cycle, and the state of charge of the energy storage system is returned until the state of charge of the energy storage system reaches a full discharge state.

[0102] Step 206, returning to step 202, until the connection between the microgrid and the main power grid is restored.

[0103] Specifically, after the state of charge of the energy storage system reaches the full discharge state, the process returns to step 102 until the connection between the microgrid and the main power grid is restored.

[0104] It should be understood that although Figure 2The steps in the flowchart are shown in sequence as indicated by the arrows, but these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified in this document, there is no strict order restriction for the execution of these steps, and these steps can be executed in other orders. Moreover, Figure 2 At least part of the steps may include multiple sub-steps or multiple stages. These sub-steps or stages do not necessarily have to be executed 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 performed sequentially, but can be executed in turn or alternately with other steps or at least part of the sub-steps or stages of other steps.

[0105] The solution of the present application further refines the hydroelectric equipment during the discharge process of the energy storage system, that is, adjusts multiple energy storage regulation cycles separately, thereby further ensuring that the hydroelectric equipment and the energy storage system both supply power to the grid load equipment, ensuring the discharge process of the energy storage system. It further ensures that the energy storage system will not generate a charging process when it has not reached a full discharge state. Therefore, the frequent conversion of the energy storage system between the charging and discharging working modes is further avoided, and the service life of the energy storage system is increased.

[0106] Figure 3 is a structural schematic diagram of the energy storage regulation device provided in the present application, and the device is suitable for executing the energy storage regulation method provided in the present application. Figure 3 As shown, the device may specifically include:

[0107] The acquisition module 301 is used to acquire the charge state of the energy storage system after the microgrid is disconnected from the main power grid; wherein the energy storage system is a device in the microgrid, and the microgrid also includes hydropower generation equipment and power grid load equipment;

[0108] A first regulating module 302 is used to regulate the hydroelectric power generation power of the hydroelectric power generation equipment to a first target power generation power when the state of charge of the energy storage system reaches a fully discharged state, so that the hydroelectric power 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;

[0109] A second regulating module 303 is used to regulate the hydroelectric power generation to a second target power generation when the state of charge of the energy storage system reaches a fully charged state, so that the hydroelectric power 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 a fully discharged state;

[0110] The return module 304 is used to return to the step of "adjusting the hydroelectric power generation power of the hydroelectric power generation equipment to the first target power generation power when the charge state of the energy storage system reaches the full discharge state" until the connection between the microgrid and the main grid is restored.

[0111] In one embodiment, the first regulation module 302 is specifically used to: obtain the hydroelectric power and the load absorption power of the grid load equipment; determine the energy storage regulation period according to the capacity of the energy storage system, the hydroelectric power and the load absorption power; within the first energy storage regulation period, adjust the hydroelectric power to the first target power; wherein the first target power is used to indicate that the ratio of the hydroelectric 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 regulation period of the first energy storage regulation period as the second energy storage regulation period, and within the second energy storage regulation period, obtain the hydroelectric power of the second energy storage regulation period, the load absorption power of the second energy storage regulation period and the state of charge of the energy storage system; according to the ratio of the hydroelectric power of the second energy storage regulation period to the load absorption power of the second energy storage regulation period, adjust the hydroelectric power after the first energy storage regulation period to the first target power, so that the hydroelectric power 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 full charge state.

[0112] In one embodiment, the first regulation module 302 regulates the hydroelectric power after the first energy storage regulation cycle to the first target power according to the ratio of the hydroelectric power in the second energy storage regulation cycle to the load absorption power in the second energy storage regulation cycle, so that the hydroelectric power 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 full charge state. Specifically, if the ratio of the hydroelectric power 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, the second energy storage regulation cycle is used as the new first energy storage regulation cycle, and the execution of "regulating the hydroelectric power to the first target power in the first energy storage regulation cycle" is returned. step, 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 the second ratio and the third ratio are both greater than a preset value; if the ratio of the hydroelectric power 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 step of "obtaining the hydroelectric power 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 in the second energy storage regulation cycle" is returned to be executed until the state of charge of the energy storage system reaches a fully charged state.

[0113] In one embodiment, the second regulation module 303 is specifically used to: within the third energy storage regulation cycle, adjust the hydroelectric power to the second target power; wherein the second target power is used to indicate that the ratio of the hydroelectric power to the load absorption power is a fourth ratio, and the fourth ratio is less than a preset value; determine the next energy storage regulation cycle of the third energy storage regulation cycle as the fourth energy storage regulation cycle, and within the fourth energy storage regulation cycle, obtain the hydroelectric power of the fourth energy storage regulation cycle, the load absorption power of the fourth energy storage regulation cycle, and the charge state of the energy storage system; according to the ratio of the hydroelectric power of the fourth energy storage regulation cycle to the load absorption power of the fourth energy storage regulation cycle, adjust the hydroelectric power after the third energy storage regulation cycle to the second target power, so that the hydroelectric power generation equipment and the energy storage system supply power to the power grid load equipment until the charge state of the energy storage system reaches a full discharge state.

[0114] In one embodiment, the second regulation module 303 regulates the hydroelectric power after the third energy storage regulation cycle to the second target power according to the ratio of the hydroelectric power of the fourth energy storage regulation cycle to the load absorption power of the fourth energy storage regulation cycle, so that the hydroelectric power 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 the full discharge state. Specifically, if the ratio of the hydroelectric power of the fourth energy storage regulation cycle to the load absorption power of the fourth energy storage regulation cycle is less than the fifth ratio, or greater than the sixth ratio, the fourth energy storage regulation cycle is used as the new third energy storage regulation cycle, and the execution of "in the third energy storage regulation cycle, the hydroelectric power is regulated to the second target power" is returned. until the state of charge of the energy storage system reaches a full discharge state; wherein, the fifth ratio is less than the fourth ratio, the sixth ratio is greater than the fourth ratio, and the fifth ratio and the sixth ratio are both less than a preset value; if the ratio of the hydroelectric power generation power of the fourth energy storage regulation cycle 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 next cycle of the fourth energy storage regulation cycle is used as a new fourth energy storage regulation cycle, and the step of "obtaining the hydroelectric power generation power of the fourth energy storage regulation cycle, the load absorption power of the fourth energy storage regulation cycle, and the state of charge of the energy storage system within the fourth energy storage regulation cycle" is returned to be executed until the state of charge of the energy storage system reaches a full discharge state.

[0115] In one embodiment, the first regulation module 302, in determining the energy storage regulation period according to the capacity of the energy storage system, the hydroelectric power and the load absorption power, is specifically used to: determine the power deviation according to the hydroelectric power and the load absorption power; determine the initial regulation period according to the capacity of the energy storage system and the power deviation; if the initial regulation period is less than or equal to the preset regulation period, determine the preset regulation period as the energy storage regulation period; if the initial regulation period is greater than the preset regulation period, determine the initial regulation period as the energy storage regulation period.

[0116] In one embodiment, the first regulating module 302, in determining the initial regulating period according to the capacity of the energy storage system and the power deviation, is specifically configured to: determine the ratio of half the capacity of the energy storage system to the power deviation as the initial regulating period.

[0117] The device of the present application obtains the charge state 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 hydroelectric power generation equipment and grid load equipment; when the charge state of the energy storage system reaches a full discharge state, the hydroelectric power generation power of the hydroelectric power generation equipment is adjusted to a first target power generation power, so that the hydroelectric power generation equipment supplies power to the energy storage system and the grid load equipment until the charge state of the energy storage system reaches a full charge state; when the charge state of the energy storage system reaches a full charge state, the hydroelectric power generation power is adjusted to a second target power generation power, so that the hydroelectric power generation equipment and the energy storage system supply power to the grid load equipment until the charge state of the energy storage system reaches a full discharge state; and returns to execute the step of "when the charge state of the energy storage system reaches a full discharge state, adjusting the hydroelectric power generation power of the hydroelectric power generation equipment to the first target power generation power" until the connection between the microgrid and the main grid is restored. That is, the solution of the present application starts charging when the state of charge of the energy storage system reaches the full discharge state, and the energy storage system starts discharging after the energy storage system reaches the full charge state, and then charges the energy storage system after the energy storage system is discharged to the full discharge state. Therefore, the energy storage system is only discharged after being charged to the full charge state, and is charged after being discharged to the full discharge state, thereby avoiding frequent switching between the charging and discharging working modes of the energy storage system, thereby increasing the service life of the energy storage system.

[0118] The present 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 implements the energy storage regulation method provided in any of the above embodiments when executing the program.

[0119] The present application also provides a computer-readable medium on which a computer program is stored. When the program is executed by a processor, the energy storage regulation method provided in any of the above embodiments is implemented.

[0120] Reference below Figure 4 , which shows a structural schematic diagram of an electronic device 400 suitable for implementing the present application. Figure 4 The electronic device shown is only an example and should not bring any limitation to the function and scope of use of the present application.

[0121] like Figure 4 As shown, the electronic device 400 includes a central processing unit (CPU) 401, which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 402 or a program loaded from a storage part 408 into a random access memory (RAM) 403. In the RAM 403, various programs and data required for the operation of the electronic device 400 are also stored. The CPU 401, the ROM 402, and the RAM 403 are connected to each other via a bus 404. An input / output (I / O) interface 405 is also connected to the bus 404.

[0122] The following components are connected to the I / O interface 405: an input section 406 including a keyboard, a mouse, etc.; an output section 407 including a cathode ray tube (CRT), a liquid crystal display (LCD), etc., and a speaker, 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, a modem, etc. The communication section 409 performs communication processing via a network such as the Internet. A drive 410 is also connected to the I / O interface 405 as needed. A removable medium 411, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc., is installed on the drive 410 as needed, so that a computer program read therefrom is installed into the storage section 408 as needed.

[0123] In particular, according to the embodiments disclosed in the present application, the process described above with reference to the flowchart can be implemented as a computer software program. For example, the embodiments disclosed in the present application include a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes a program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from the network through the communication part 409, and / or installed from the removable medium 411. When the computer program is executed by the central processing unit (CPU) 401, the above-mentioned functions defined in the system of the present application are executed.

[0124] It should be noted that the computer-readable medium shown in the present application may be a computer-readable signal medium or a computer-readable storage medium or any combination of the above two. The computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In the present application, a computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in combination with an instruction execution system, device or device. In the present application, a computer-readable signal medium may include a data signal propagated in a baseband or as part of a carrier wave, in which a computer-readable program code is carried. This propagated data signal may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. Computer-readable signal media may also be any computer-readable medium other than computer-readable storage media, which may send, propagate or transmit a program for use by or in conjunction with an instruction execution system, apparatus or device. The program code contained on the computer-readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wire, optical cable, RF, etc., or any suitable combination of the above.

[0125] The flow chart and block diagram in the accompanying drawings illustrate the possible architecture, function and operation of the system, method and computer program product according to various embodiments of the present application. In this regard, each box in the flow chart or block diagram can represent a module, a program segment or a part of a code, and the above-mentioned module, program segment or a part of a code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram or flow chart, and the combination of the boxes in the block diagram or flow chart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0126] The modules and / or units described in this application may be implemented in software or hardware. The modules and / or units described may also be set in a processor, for example, it may be described as: a processor includes an acquisition module, a first adjustment module, a second adjustment module and a return module. The names of these modules do not, in some cases, constitute limitations on the modules themselves.

[0127] As another aspect, the present application further provides a computer-readable medium, which may be included in the device described in the above embodiment; or may exist independently without being assembled into the device. The above computer-readable medium carries one or more programs, and when the above one or more programs are executed by a device, the device includes:

[0128] After the connection between the microgrid and the main grid is disconnected, the charge state of the energy storage system is obtained; wherein the energy storage system is a device in the microgrid, and the microgrid also includes hydroelectric power generation equipment and grid load equipment; when the charge state of the energy storage system reaches a full discharge state, the hydroelectric power generation power of the hydroelectric power generation equipment is adjusted to a first target power generation power, so that the hydroelectric power generation equipment supplies power to the energy storage system and the grid load equipment, until the charge state of the energy storage system reaches a full charge state; when the charge state of the energy storage system reaches a full charge state, the hydroelectric power generation power is adjusted to a second target power generation power, so that the hydroelectric power generation equipment and the energy storage system supply power to the grid load equipment, until the charge state of the energy storage system reaches a full discharge state; return to execute the step of "when the charge state of the energy storage system reaches a full discharge state, adjusting the hydroelectric power generation power of the hydroelectric power generation equipment to the first target power generation power" until the connection between the microgrid and the main grid is restored.

[0129] According to the solution of the present application, after the connection between the microgrid and the main grid is disconnected, the charge state of the energy storage system is obtained; wherein the energy storage system is a device in the microgrid, and the microgrid also includes hydroelectric power generation equipment and grid load equipment; when the charge state of the energy storage system reaches a full discharge state, the hydroelectric power generation power of the hydroelectric power generation equipment is adjusted to a first target power generation power, so that the hydroelectric power generation equipment supplies power to the energy storage system and the grid load equipment, until the charge state of the energy storage system reaches a full charge state; when the charge state of the energy storage system reaches a full charge state, the hydroelectric power generation power is adjusted to a second target power generation power, so that the hydroelectric power generation equipment and the energy storage system supply power to the grid load equipment, until the charge state of the energy storage system reaches a full discharge state; return to execute the step of "when the charge state of the energy storage system reaches a full discharge state, adjusting the hydroelectric power generation power of the hydroelectric power generation equipment to the first target power generation power" until the connection between the microgrid and the main grid is restored. That is, the solution of the present application starts charging when the state of charge of the energy storage system reaches the full discharge state, and the energy storage system starts discharging after the energy storage system reaches the full charge state, and then charges the energy storage system after the energy storage system is discharged to the full discharge state. Therefore, the energy storage system is only discharged after being charged to the full charge state, and is charged after being discharged to the full discharge state, thereby avoiding frequent switching between the charging and discharging working modes of the energy storage system, thereby increasing the service life of the energy storage system.

[0130] An embodiment of the present application also provides a computer program product, including a computer program, which, when executed by a processor, implements the energy storage regulation method provided in any embodiment of the present application.

[0131] In the process of implementation, the computer program product can be written in one or more programming languages ​​or a combination thereof to perform the computer program code of the present application, and the programming language includes an object-oriented programming language, such as Java, Smalltalk, C++, and also includes a conventional procedural programming language, such as "C" language or similar programming language. The program code can be executed completely on the user's computer, partially on the user's computer, as an independent software package, partially on the user's computer and partially on the remote computer, or completely on the remote computer or server. In the case of a remote computer, 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 (for example, using an Internet service provider to connect through the Internet).

[0132] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0133] The above specific implementations do not constitute a limitation on the protection scope of this application. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may occur depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of this application should be included in the protection scope of this application.

Claims

1. A method for regulating energy storage, characterized in that: include: After the microgrid is disconnected from the main power grid, the charge state 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 power grid load equipment; When the state of charge of the energy storage system reaches a full discharge state, obtaining the hydroelectric power generation power and the load absorption power of the power grid load equipment; Determining an energy storage adjustment period according to the capacity of the energy storage system, the hydroelectric power generation power and the load absorption power; In a first energy storage adjustment cycle, the hydroelectric power generation is adjusted to a first target power generation; wherein the first target power generation is used to indicate that a ratio of the hydroelectric power generation to the load absorption power is a first ratio, and the first ratio is greater than a preset value; Determine the next energy storage regulation cycle of the first energy storage regulation cycle as a second energy storage regulation cycle, and obtain the hydroelectric power of the second energy storage regulation cycle, the load absorption power of the second energy storage regulation cycle, and the charge state of the energy storage system in the second energy storage regulation cycle; If the ratio of the hydroelectric power 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, the second energy storage regulation cycle is used as the new first energy storage regulation cycle, and the step of "adjusting the hydroelectric power generation power to the first target power generation power within the first energy storage regulation cycle" is returned to be executed 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 a preset value; If the ratio of the hydroelectric power 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, the next cycle of the second energy storage regulation cycle is used as a new second energy storage regulation cycle, and the step of "obtaining the hydroelectric power 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 in the second energy storage regulation cycle" is returned to be executed until the state of charge of the energy storage system reaches a fully charged state; When the state of charge of the energy storage system reaches a fully charged state, adjusting the hydroelectric power generation power to a second target power generation power, so that the hydroelectric power 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 a fully discharged state; Return to the step of "obtaining the hydroelectric power generation power and the load absorption power of the grid load equipment when the state of charge of the energy storage system reaches the full discharge state" until the connection between the microgrid and the main grid is restored.

2. The method according to claim 1, characterized in that The step of adjusting the hydroelectric power generation power to a second target power generation power so that the hydroelectric power 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 a full discharge state includes: In a third energy storage adjustment cycle, the hydroelectric power generation is adjusted to the second target power generation; wherein the second target power generation is used to indicate that the ratio of the hydroelectric power 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 regulation cycle of the third energy storage regulation cycle as the fourth energy storage regulation cycle, and obtain the hydroelectric power of the fourth energy storage regulation cycle, the load absorption power of the fourth energy storage regulation cycle, and the charge state of the energy storage system in the fourth energy storage regulation cycle; According to the ratio of the hydroelectric power of the fourth energy storage regulation cycle to the load absorption power of the fourth energy storage regulation cycle, the hydroelectric power after the third energy storage regulation cycle is adjusted to the second target power, so that the hydroelectric power generation equipment and the energy storage system supply power to the power grid load equipment until the charge state of the energy storage system reaches a full discharge state.

3. The method according to claim 2, characterized in that The method further comprises: adjusting the hydroelectric power after the third energy storage regulation period to the second target power according to the ratio of the hydroelectric power of the fourth energy storage regulation period to the load absorption power of the fourth energy storage regulation period, so that the hydroelectric power 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 a full discharge state, including: If the ratio of the hydroelectric power generation power of the fourth energy storage regulation cycle to the load absorption power of the fourth energy storage regulation cycle is less than the fifth ratio, or greater than the sixth ratio, the fourth energy storage regulation cycle is used as a new third energy storage regulation cycle, and the step of "adjusting the hydroelectric power generation power to the second target power generation power within the third energy storage regulation cycle" is returned to be executed until the state of charge of the energy storage system reaches the full discharge state; wherein the fifth ratio is less than the fourth ratio, the sixth ratio is greater than the fourth ratio, and the fifth ratio and the sixth ratio are both less than the preset value; If the ratio of the hydroelectric power generation power of the fourth energy storage regulation cycle 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, the next cycle of the fourth energy storage regulation cycle is used as a new fourth energy storage regulation cycle, and the step of "obtaining the hydroelectric power generation power of the fourth energy storage regulation cycle, the load absorption power of the fourth energy storage regulation cycle and the state of charge of the energy storage system within the fourth energy storage regulation cycle" is returned to be executed until the state of charge of the energy storage system reaches a full discharge state.

4. The method according to claim 1, characterized in that The determining of the energy storage adjustment period according to the capacity of the energy storage system, the hydroelectric power generation power and the load absorption power comprises: Determining a power deviation according to the hydroelectric power generation and the load absorption power; Determining an initial adjustment period according to 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, 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.

5. The method according to claim 4, characterized in that The determining the initial adjustment period according to the capacity of the energy storage system and the power deviation includes: The ratio of half the capacity of the energy storage system to the power deviation is determined as the initial adjustment period.

6. An energy storage regulating device, characterized in that: include: An acquisition module, used to acquire the charge state of the energy storage system after the microgrid is disconnected from the main power grid; wherein the energy storage system is a device in the microgrid, and the microgrid also includes hydropower generation equipment and power grid load equipment; A first regulating module is used to obtain the hydroelectric power generation power and the load absorption power of the power grid load equipment when the state of charge of the energy storage system reaches a full discharge state; Determining an energy storage adjustment period according to the capacity of the energy storage system, the hydroelectric power generation power and the load absorption power; In a first energy storage adjustment cycle, the hydroelectric power generation is adjusted to a first target power generation; wherein the first target power generation is used to indicate that a ratio of the hydroelectric power generation to the load absorption power is a first ratio, and the first ratio is greater than a preset value; Determine the next energy storage regulation cycle of the first energy storage regulation cycle as a second energy storage regulation cycle, and obtain the hydroelectric power of the second energy storage regulation cycle, the load absorption power of the second energy storage regulation cycle, and the charge state of the energy storage system in the second energy storage regulation cycle; If the ratio of the hydroelectric power 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, the second energy storage regulation cycle is used as the new first energy storage regulation cycle, and the step of "adjusting the hydroelectric power generation power to the first target power generation power within the first energy storage regulation cycle" is returned to be executed 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 a preset value; If the ratio of the hydroelectric power 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, the next cycle of the second energy storage regulation cycle is used as a new second energy storage regulation cycle, and the step of "obtaining the hydroelectric power 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 in the second energy storage regulation cycle" is returned to be executed until the state of charge of the energy storage system reaches a fully charged state; A second regulating module is used to regulate the hydroelectric power 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 hydroelectric power 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 a fully discharged state; A return module is used to return to the step of "obtaining the hydroelectric power generation power and the load absorption power of the grid load equipment when the state of charge of the energy storage system reaches the full discharge state" until the connection between the microgrid and the main grid is restored.

7. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the program, the energy storage regulation method as described in any one of claims 1-5 is implemented.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the energy storage regulation method as described in any one of claims 1 to 5 is implemented.

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