Hybrid energy storage system and control method and device thereof, electronic equipment and storage medium

Abstract

The invention relates to the technical field of energy storage and power supply systems, in particular to a hybrid energy storage system, a control method and device thereof, electronic equipment and a storage medium, and the hybrid energy storage system comprises a flywheel energy storage unit and a fused salt energy storage unit. And the flywheel energy storage unit and the fused salt energy storage unit are respectively connected with a power grid and are used for storing to-be-stored electric energy of the power grid and / or supplying power to the power grid. The hybrid energy storage system provided by the invention comprises the flywheel energy storage unit and the fused salt energy storage unit, is high in environmental adaptability, low in dependence degree on geographical conditions, easy to establish, environment-friendly and convenient to maintain, and can improve the reliability and stability of the hybrid energy storage system so as to respond to frequency modulation and peak regulation requirements of a power grid.

Description

Technical Field

[0001] The present invention relates to the technical field of energy storage power supply systems, and in particular to a hybrid energy storage system and a control method, device, electronic equipment, and storage medium thereof. Background Art

[0002] Appropriate power dispatching of energy storage systems can improve the grid environment, buffer the instability of the grid environment caused by the volatility of renewable energy, thereby improving the stability and reliability of the power system, and timely alleviating the grid's demand for electricity. Hybrid energy storage systems have been widely used in real life because they can use different storage technologies to improve the performance of the entire energy storage system.

[0003] There are many existing energy storage methods, such as flywheel energy storage, electrochemical energy storage, capacitor energy storage, compressed air energy storage, and hydrogen production by electrolysis of water. However, in actual coordinated use, some energy storage methods are highly dependent on geographical conditions, resulting in hybrid energy storage being difficult to assemble and maintain; and electrochemical energy storage methods are not environmentally friendly, and the electrolyte may cause harm to the environment; resulting in the reliability of existing hybrid energy storage being unsatisfactory. Summary of the invention

[0004] In view of this, an object of the present invention is to provide a hybrid energy storage system and a control method, device, electronic device, and storage medium thereof.

[0005] In a first aspect, an embodiment of the present invention provides a hybrid energy storage system, comprising: a flywheel energy storage unit and a molten salt energy storage unit; the flywheel energy storage unit and the molten salt energy storage unit are respectively connected to a power grid, and are used to store the electrical energy to be stored in the power grid and / or to supply power to the power grid.

[0006] In combination with the first aspect, the hybrid energy storage system further includes an energy storage control unit, which is communicatively connected to the power grid, the flywheel energy storage unit, and the molten salt energy storage unit respectively;

[0007] The flywheel energy storage unit is controlled by the energy storage control unit to change the output power to adjust the power supply frequency of the power grid; the molten salt energy storage unit is controlled by the energy storage control unit to adjust the peak value of the power grid by adjusting the output energy.

[0008] In combination with the first aspect, the molten salt energy storage unit comprises: an electric heater, a molten salt hot tank, a heat exchange system and a molten salt cold tank connected in sequence;

[0009] The low-temperature molten salt in the molten salt cold tank enters the electric heater through the molten salt pump, and the molten salt is heated in the electric heater by wind power, photovoltaic power, and night-time off-peak electricity. The heated high-temperature molten salt enters the molten salt hot tank for storage to realize a heat storage cycle;

[0010] The high-temperature molten salt in the molten salt hot tank enters the heat exchange system through a molten salt pump for heat exchange, and then enters the molten salt cold tank for storage, so as to realize the molten salt heat release cycle;

[0011] The heat exchange system absorbs heat to generate electrical energy and outputs it to the power grid.

[0012] In combination with the first aspect, the heat exchange system includes: a boiler, a steam turbine and a generator connected in sequence, and the high-temperature molten salt in the molten salt hot tank exchanges heat with the feed water in the boiler to heat the feed water into steam to drive the steam turbine to rotate, thereby generating electrical energy through the generator to supply power to the power grid.

[0013] In a second aspect, the present application provides a control method for a hybrid energy storage system, which is applied to the above-mentioned hybrid energy storage system, and the method includes:

[0014] Acquiring energy storage scheduling data and performance parameters corresponding to the hybrid energy storage system;

[0015] Input the energy storage scheduling data and the performance parameters into a preset model, and output an energy storage scheduling plan; the energy storage scheduling plan includes a frequency regulation plan and / or a peak regulation plan;

[0016] Determine the target output power of the flywheel energy storage unit based on the frequency modulation scheme, and / or determine the target output energy of the molten salt energy storage unit based on the peak regulation scheme;

[0017] Control the flywheel energy storage unit to operate at a target output power, and / or control the molten salt energy storage unit to operate at a target output energy.

[0018] In combination with the second aspect, the energy storage scheduling data includes at least one of the following: electricity demand information, electricity demand power data, increased discharge power during peak electricity consumption, and increased charging power during valley electricity consumption;

[0019] The performance parameters include at least one of the following: storage capacity of the hybrid energy storage system, economic and life cycle data of the hybrid energy storage system, charging and discharging performance parameters of the hybrid energy storage system, and power parameters of the hybrid energy storage system.

[0020] In conjunction with the second aspect, the energy storage scheduling scheme includes a frequency regulation scheme and a peak regulation scheme;

[0021] After the step of inputting the energy storage scheduling data and the performance parameters into a preset model and outputting an energy storage scheduling solution, the method further includes:

[0022] Based on the current electricity demand information, determine that one of the frequency regulation scheme and the peak regulation scheme is a first energy storage scheduling scheme, and the other is a second energy storage scheduling scheme; the first scheduling scheme includes first energy storage scheduling data, and the second scheduling scheme includes second energy storage scheduling data;

[0023] Optimizing second energy storage scheduling data corresponding to a second scheduling scheme based on the first energy storage scheduling data;

[0024] The operation of the hybrid energy storage system is controlled according to the first energy storage scheduling data and the second energy storage scheduling data.

[0025] In a third aspect, the present application provides a control device for a hybrid energy storage system, comprising:

[0026] An acquisition module, used to acquire energy storage scheduling data and performance parameters corresponding to the hybrid energy storage system;

[0027] An energy storage scheduling scheme output module, used to input the energy storage scheduling data and the performance parameters into a preset model and output an energy storage scheduling scheme; the energy storage scheduling scheme includes a frequency regulation scheme and / or a peak regulation scheme;

[0028] A determination module, used to determine the target output power of the flywheel energy storage unit based on the frequency modulation scheme, and / or to determine the target output energy of the molten salt energy storage unit based on the peak regulation scheme;

[0029] A control module is used to control the flywheel energy storage unit to operate at a target output power, and / or to control the molten salt energy storage unit to operate at a target output energy.

[0030] In a fourth aspect, the present application provides an electronic device, comprising a memory and a processor, wherein the memory stores a computer program, and the processor is used to execute the computer program to perform the above method.

[0031] In a fifth aspect, the present application provides a storage medium, wherein the storage medium stores a computer program, and a processor executes the computer program to implement the above method.

[0032] The embodiments of the present invention bring the following beneficial effects: The present invention provides a hybrid energy storage system and its control method, device, electronic device, and storage medium, wherein the hybrid energy storage system includes: a flywheel energy storage unit and a molten salt energy storage unit; the flywheel energy storage unit and the molten salt energy storage unit are respectively connected to the power grid, and are used to store the electric energy to be stored in the power grid and / or to supply power to the power grid. The hybrid energy storage system provided in the present application includes a flywheel energy storage unit and a molten salt energy storage unit, which has strong environmental adaptability, low dependence on geographical conditions, is easy to assemble, environmentally friendly, and easy to maintain, and can improve the reliability and stability of the hybrid energy storage system to respond to the frequency modulation and peak regulation requirements of the power grid.

[0033] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description, claims and drawings.

[0034] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0036] Figure 1 A schematic diagram of the structure of a hybrid energy storage system provided by an embodiment of the present invention;

[0037] Figure 2 A schematic diagram of the working principle of a hybrid energy storage system provided by an embodiment of the present invention;

[0038] Figure 3 A flow chart of a control method for a hybrid energy storage system provided by an embodiment of the present invention;

[0039] Figure 4 A schematic diagram of the structure of a control device for a hybrid energy storage system provided in an embodiment of the present invention.

[0040] The reference numerals are as follows:

[0041] 1-flywheel energy storage unit, 2-molten salt energy storage unit, 3-control unit;

[0042] 21-electric heater, 22-molten salt hot tank, 23-heat exchange system, 24-molten salt cold tank, 25-boiler, 26-steam turbine, 27-generator;

[0043] 10-acquisition module, 20-energy storage scheduling plan output module, 30-determination module, 40-control module. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0045] In order to facilitate the understanding of this embodiment, the technical terms designed in this application are briefly introduced below.

[0046] Hybrid energy storage systems have been widely used in real life because they can use different storage technologies to improve the performance of the entire energy storage system. However, in actual use, some energy storage methods are highly dependent on geographical conditions, which makes hybrid energy storage difficult to assemble and maintain, and the reliability of hybrid energy storage systems is poor.

[0047] After introducing the technical terms involved in this application, the application scenarios and design concepts of the embodiments of this application are briefly introduced.

[0048] Example 1

[0049] The present application provides a hybrid energy storage system, comprising: a flywheel energy storage unit 1 and a molten salt energy storage unit 2.

[0050] Combination Figure 1 As shown, the flywheel energy storage unit 1 and the molten salt energy storage unit 2 are respectively connected to the power grid, and are used to store the electric energy to be stored in the power grid and / or to supply power to the power grid.

[0051] The hybrid energy storage system provided in the present application is a modular mixed energy storage. In this hybrid energy storage system, both flywheel energy storage and molten salt energy storage are environmentally friendly and can be used for a long time. They are more advantageous from a cost perspective and do not require high geographical conditions for installation. They can be assembled in complex environments and have both peak-shaving and frequency-regulating functions to ensure the stability of the power grid.

[0052] Among them, the flywheel energy storage unit 1 mainly converts kinetic energy and electrical energy into each other through flywheel rotation and bidirectional motor; the molten salt energy storage unit 2 absorbs heat through special molten salt, releases heat through temperature difference to drive the turbine to rotate, so as to realize the mutual conversion between electrical energy and thermal energy.

[0053] Flywheel energy storage uses electrical energy to drive the flywheel to rotate at high speed to convert electrical energy into mechanical energy. When needed, the flywheel inertia is used to drag the motor to generate electricity, thereby realizing a storage method that converts the stored mechanical energy into electrical energy output. This energy storage method has low dependence on the environment.

[0054] In this embodiment, the flywheel body in the flywheel energy storage unit 1 is made of common steel. The common flywheel energy storage unit 1 is composed of five main components: a flywheel body, a bearing (not shown in the figure), a motor (not shown in the figure), a power converter (not shown in the figure) and a vacuum chamber (not shown in the figure). The motor is both an electric motor and a generator. When charging, it acts as an electric motor to accelerate the flywheel; when discharging, it acts as a generator to power the peripheral device, and the speed of the flywheel at this time continues to decrease; and when the flywheel is idle, the entire device operates with minimal loss.

[0055] Combination Figure 1 As shown, the flywheel energy storage unit 1 also includes a frequency converter for adjusting the voltage and frequency of the power supply, and providing the required power supply voltage according to the actual needs of the motor, thereby achieving the purpose of energy saving and speed regulation.

[0056] In combination with the first aspect, the hybrid energy storage system further includes an energy storage control unit 3, which is communicatively connected to the power grid, the flywheel energy storage unit 1, and the molten salt energy storage unit 2 respectively;

[0057] The flywheel energy storage unit 1 is controlled by the energy storage control unit 3 to change the output power to adjust the power supply frequency of the power grid; the molten salt energy storage unit 2 is controlled by the energy storage control unit 3 to adjust the peak value of the power grid by adjusting the output energy.

[0058] The control unit 3 is a PCS controller, which receives background control instructions through communication, and controls the current storage converter in the PCS controller to charge or discharge the flywheel energy storage unit 1 and the molten salt energy storage unit 2 according to the sign and size of the power instruction, so as to adjust the active power and reactive power of the power grid. The PCS controller communicates with the BMS through the CAN interface to obtain the status information of the flywheel energy storage unit 1 and the molten salt energy storage unit 2 to protect the charge and discharge performance of the flywheel energy storage unit 1 and the molten salt energy storage unit 2 and ensure safe operation.

[0059] In combination with the first aspect, the molten salt energy storage unit 2 includes: an electric heater 21, a molten salt hot tank 22, a heat exchange system 23 and a molten salt cold tank 24 connected in sequence.

[0060] The low-temperature molten salt in the molten salt cold tank 24 enters the electric heater 21 through the molten salt pump, and the molten salt is heated in the electric heater 21 by wind power, photovoltaic power, and night-time off-peak electricity. The heated high-temperature molten salt enters the molten salt hot tank 22 for storage to realize a heat storage cycle;

[0061] The high-temperature molten salt in the molten salt hot tank 22 enters the heat exchange system 23 through the molten salt pump for heat exchange, and then enters the molten salt cold tank 24 for storage, so as to realize the molten salt heat release cycle;

[0062] The heat exchange system 23 absorbs heat to generate electrical energy and outputs it to the power grid.

[0063] In this embodiment, the molten salt energy storage unit 2 uses a high and low temperature bidirectional salt storage tank, which releases heat through temperature difference to drive the turbine to rotate, so as to realize the mutual conversion between electrical energy and thermal energy. During the heat release process, the heat can also be used to provide heat for heat users.

[0064] In combination with the first aspect, the heat exchange system 23 includes: a boiler 25, a steam turbine 26 and a generator 27 connected in sequence. The high-temperature molten salt in the molten salt hot tank 22 exchanges heat with the feed water in the boiler 25 to heat the feed water into steam to drive the steam turbine 26 to rotate, thereby driving the generator to work, and generating electrical energy through the generator 27 to supply power to the power grid.

[0065] Combination Figure 2 As shown, in the molten salt energy storage unit 2, the high-temperature molten salt is heat-exchanged with the feed water in the boiler 25, so that the heat of the heated feed water can be used to provide heat for heat users, making energy utilization more efficient.

[0066] In a second aspect, the present application provides a control method for a hybrid energy storage system. The hybrid energy storage system, combined with Figure 3 As shown, the method includes:

[0067] S110, obtaining energy storage scheduling data and performance parameters corresponding to the hybrid energy storage system.

[0068] S120, inputting energy storage scheduling data and performance parameters into a preset model, and outputting an energy storage scheduling plan; the energy storage scheduling plan includes a frequency regulation plan and / or a peak regulation plan;

[0069] S130, determining a target output power of a flywheel energy storage unit based on a frequency modulation scheme, and / or determining a target output energy of a molten salt energy storage unit based on a peak modulation scheme;

[0070] S140, controlling the flywheel energy storage unit to operate at a target output power, and / or controlling the molten salt energy storage unit to operate at a target output energy.

[0071] In this embodiment, the frequency regulation and / or peak regulation in the corresponding energy storage scheduling scheme is determined according to the energy storage scheduling data sent by the control system and the corresponding performance parameters of the hybrid energy storage system; then, the target output energy of the molten salt energy storage unit 2 is calculated when peak regulation is required, and the target output power of the flywheel energy storage unit 1 is calculated when frequency regulation is required to achieve peak regulation and / or frequency regulation.

[0072] Specifically, the target output energy of the molten salt energy storage unit 2 is adjusted when peak shaving is required, and the target output power of the flywheel energy storage unit 1 is adjusted when frequency modulation is required. In this embodiment, a single control method is adopted, in which the flywheel energy storage unit 1 is used for frequency modulation and the molten salt energy storage unit 2 is used for peak shaving, which increases the reliability of the hybrid energy storage system and reduces the complexity of the control logic. Compared with the hybrid energy storage method of flywheel energy storage and lithium battery in the related art, the hybrid energy storage system provided in this embodiment has a flywheel energy storage unit 1 that is only used for frequency modulation and a molten salt energy storage unit 2 that is only used for peak shaving, which has a low degree of damage to the environment, is environmentally friendly, and has a simple and clear single control logic, which is conducive to the stable operation of the control system.

[0073] In conjunction with the second aspect, the energy storage dispatching data includes at least one of the following: electricity demand information, electricity demand power data, increased discharge power during peak electricity consumption, and increased charging power during valley electricity consumption;

[0074] The performance parameters include at least one of the following: storage capacity of the hybrid energy storage system, economic and life cycle data of the hybrid energy storage system, charging and discharging performance parameters of the hybrid energy storage system, and power parameters of the hybrid energy storage system.

[0075] Combined with the second aspect, the energy storage dispatch scheme includes frequency regulation scheme and peak regulation scheme;

[0076] After the step S120 of inputting the energy storage scheduling data and the performance parameters into a preset model and outputting an energy storage scheduling solution, the following steps are also included:

[0077] S121, determining one of the frequency regulation scheme and the peak regulation scheme as the first energy storage scheduling scheme and first energy storage scheduling data corresponding to the first scheduling scheme based on the current electricity demand information;

[0078] S122, optimizing second energy storage scheduling data corresponding to the second scheduling scheme based on the first energy storage scheduling data;

[0079] S123, controlling the operation of the hybrid energy storage system according to the first energy storage scheduling data and the second energy storage scheduling data.

[0080] In this application, the priority execution order is determined based on the different demands for peak shaving and frequency regulation and the different energy storage scheduling speed requirements at different time nodes. For example, during the peak electricity consumption period, the demand for peak shaving is greater. At this time, the peak shaving scheme should be executed first, and the second scheduling data in the frequency regulation energy storage scheme should be optimized based on the first energy storage scheduling data of the peak shaving scheme. Then, the operation of the hybrid energy storage system is controlled according to the first energy storage data and the second energy storage scheduling data to meet different electricity demands under different circumstances.

[0081] In a third aspect, the present application provides a control device for a hybrid energy storage system, Figure 4As shown, the device includes: an acquisition module 10, an energy storage scheduling scheme output module 20, a determination module 30 and a control module 40.

[0082] The acquisition module 10 is used to acquire energy storage scheduling data and performance parameters corresponding to the hybrid energy storage system.

[0083] The energy storage scheduling scheme output module 20 is used to input energy storage scheduling data and performance parameters into a preset model and output an energy storage scheduling scheme; the energy storage scheduling scheme includes a frequency regulation scheme and / or a peak regulation scheme.

[0084] The determination module 30 is used to determine the target output power of the flywheel energy storage unit 1 based on the frequency regulation scheme, and / or determine the target output energy of the molten salt energy storage unit 2 based on the peak regulation scheme.

[0085] The control module 40 is used to control the flywheel energy storage unit 1 to operate at a target output power, and / or to control the molten salt energy storage unit 2 to operate at a target output energy.

[0086] In a fourth aspect, the present application provides an electronic device, which includes a memory and a processor, wherein a computer program is stored in the memory, and the processor is used to execute the computer program to implement the method as described above.

[0087] In a fifth aspect, the present application provides a storage medium storing a computer program, and a processor executes the computer program to implement the method as described above.

[0088] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the system and device described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0089] In addition, in the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0090] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc., which can store program codes.

[0091] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0092] Finally, it should be noted that the above embodiments are only specific implementations of the present invention, which are used to illustrate the technical solutions of the present invention, rather than to limit them. The protection scope of the present invention is not limited thereto. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art should understand that any person skilled in the art can still modify the technical solutions recorded in the above embodiments within the technical scope disclosed by the present invention, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A hybrid energy storage system, characterized in that: include: A flywheel energy storage unit and a molten salt energy storage unit; the flywheel energy storage unit and the molten salt energy storage unit are respectively connected to a power grid, and are used to store the electric energy to be stored in the power grid and / or to supply power to the power grid.

2. The hybrid energy storage system according to claim 1, characterized in that: The hybrid energy storage system also includes an energy storage control unit, which is communicatively connected to the power grid, the flywheel energy storage unit, and the molten salt energy storage unit respectively; The flywheel energy storage unit is controlled by the energy storage control unit to change the output power to adjust the power supply frequency of the power grid; the molten salt energy storage unit is controlled by the energy storage control unit to adjust the peak value of the power grid by adjusting the output energy.

3. The hybrid energy storage system according to claim 1, characterized in that: The molten salt energy storage unit comprises: an electric heater, a molten salt hot tank, a heat exchange system and a molten salt cold tank connected in sequence; The low-temperature molten salt in the molten salt cold tank enters the electric heater through the molten salt pump, and the molten salt is heated in the electric heater by wind power, photovoltaic power, and night-time off-peak electricity. The heated high-temperature molten salt enters the molten salt hot tank for storage to realize a heat storage cycle; The high-temperature molten salt in the molten salt hot tank enters the heat exchange system through a molten salt pump for heat exchange, and then enters the molten salt cold tank for storage, so as to realize the molten salt heat release cycle; The heat exchange system absorbs heat to generate electrical energy and outputs it to the power grid.

4. The hybrid energy storage system according to claim 3, characterized in that: The heat exchange system includes: a boiler, a steam turbine and a generator connected in sequence. The high-temperature molten salt in the molten salt hot tank exchanges heat with the feed water in the boiler to heat the feed water into steam to drive the steam turbine to rotate, thereby generating electrical energy through the generator to supply power to the power grid.

5. A control method for a hybrid energy storage system, characterized in that: Applied to the hybrid energy storage system according to any one of claims 1 to 4, the method comprises: Acquiring energy storage scheduling data and performance parameters corresponding to the hybrid energy storage system; Input the energy storage scheduling data and the performance parameters into a preset model, and output an energy storage scheduling plan; the energy storage scheduling plan includes a frequency regulation plan and / or a peak regulation plan; Determine the target output power of the flywheel energy storage unit based on the frequency modulation scheme, and / or determine the target output energy of the molten salt energy storage unit based on the peak regulation scheme; Control the flywheel energy storage unit to operate at a target output power, and / or control the molten salt energy storage unit to operate at a target output energy.

6. The method according to claim 5, characterized in that The energy storage scheduling data includes at least one of the following: electricity demand information, electricity demand power data, increased discharge power during peak electricity consumption, and increased charging power during valley electricity consumption; The performance parameters include at least one of the following: storage capacity of the hybrid energy storage system, economic and life cycle data of the hybrid energy storage system, charging and discharging performance parameters of the hybrid energy storage system, and power parameters of the hybrid energy storage system.

7. The method according to claim 6, characterized in that The energy storage dispatching scheme includes a frequency regulation scheme and a peak regulation scheme; After the step of inputting the energy storage scheduling data and the performance parameters into a preset model and outputting an energy storage scheduling solution, the method further includes: Based on the current electricity demand information, determine that one of the frequency regulation scheme and the peak regulation scheme is a first energy storage scheduling scheme, and the other is a second energy storage scheduling scheme; the first energy storage scheduling scheme includes first energy storage scheduling data, and the second energy storage scheduling scheme includes second energy storage scheduling data; Optimizing second energy storage scheduling data corresponding to a second scheduling scheme based on the first energy storage scheduling data; The operation of the hybrid energy storage system is controlled according to the first energy storage scheduling data and the second energy storage scheduling data.

8. A control device for a hybrid energy storage system, characterized in that: include: An acquisition module, used to acquire energy storage scheduling data and performance parameters corresponding to the hybrid energy storage system; An energy storage scheduling scheme output module, used to input the energy storage scheduling data and the performance parameters into a preset model and output an energy storage scheduling scheme; The energy storage scheduling scheme includes a frequency regulation scheme and / or a peak regulation scheme; A determination module, used to determine the target output power of the flywheel energy storage unit based on the frequency modulation scheme, and / or to determine the target output energy of the molten salt energy storage unit based on the peak regulation scheme; A control module is used to control the flywheel energy storage unit to operate at a target output power, and / or to control the molten salt energy storage unit to operate at a target output energy.

9. An electronic device, characterized in that: The electronic device comprises a memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the computer program to implement the method according to any one of claims 5 to 7.

10. A storage medium, characterized in that: The storage medium stores a computer program, and the processor executes the computer program to implement the method according to any one of claims 5 to 7.

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