Power supply equipment stability control system and stability control operation method

Abstract

The invention provides a power supply equipment stability control system and a stability control operation method, the system comprises an application layer bus and a plurality of equipment layer buses, the application layer bus is connected with a plurality of distributed converters, and each distributed converter is configured with different equipment layer buses for controlling the voltage of the corresponding equipment layer bus; and each equipment layer bus is respectively connected with a hydrogen production power supply and at least one power supply equipment. The method does not need to depend on a large power grid to provide electric energy, realizes off-grid operation, and reduces the hydrogen production cost. Besides, the voltage of each equipment layer bus is controlled by the corresponding distributed converter on the application layer bus, so that the voltage of the equipment layer bus is stable, namely, at least one power supply equipment on the equipment layer bus can stably provide electric energy for the hydrogen production power supply, and the electrolytic bath connected with the hydrogen production device can stably produce hydrogen.

Description

Technical Field

[0001] The present invention relates to the technical field of power supply, and in particular to a stabilization control system and a stabilization control operation method for power supply equipment. Background Art

[0002] Hydrogen production by water electrolysis refers to the process in which water molecules are dissociated into oxygen and hydrogen in an electrolytic cell under the action of direct current.

[0003] At present, most of the electricity required for hydrogen production is provided by the large power grid, which generates the corresponding direct current to be connected to the electrolyzer to electrolyze water to produce hydrogen. However, the electricity cost of hydrogen production accounts for a large proportion, resulting in high hydrogen production costs, and in some remote areas, the large power grid cannot be covered, making hydrogen production difficult. Summary of the invention

[0004] The present invention provides a power supply equipment stabilization control system and a stabilization control operation method, which are used to solve the defect of high hydrogen production cost in the prior art.

[0005] The present invention provides a power supply equipment stabilization control system, comprising:

[0006] An application layer bus and multiple device layer busses, wherein the application layer busses are connected to multiple distributed converters, and each distributed converter is configured with a different device layer bus for controlling the voltage of the corresponding device layer bus; each device layer bus is respectively connected to a hydrogen production power source and at least one power supply device.

[0007] According to a power supply equipment stabilization control system provided by the present invention, each distributed converter is connected to a corresponding energy storage device.

[0008] According to a power supply equipment stabilization control system provided by the present invention, the system also includes a platform layer bus, to which multiple collaborative control units are connected, and each collaborative control unit is configured with a different application layer bus for controlling the charging state of an energy storage device connected to a distributed converter on the corresponding application layer bus.

[0009] According to a power supply equipment stabilization control system provided by the present invention, the power supply equipment includes a hydrogen production power supply, and the minimum capacity value of the energy storage device is the lower limit value of the load allowable range corresponding to the electrolyzer connected to the hydrogen production power supply.

[0010] According to a power supply equipment stabilization control system provided by the present invention, each collaborative control unit is used to control the electrolytic cell to stop when the discharge current of the energy storage device is greater than the minimum allowable current of the electrolytic cell and the maintenance time of the discharge current is greater than the minimum safe stopping time of the electrolytic cell.

[0011] According to a power supply equipment stabilization control system provided by the present invention, the system also includes a platform management and control system, and the platform management and control system is connected to the platform layer bus and is used for coordinating and controlling each collaborative control unit.

[0012] The present invention also provides a method for stable operation of a power supply device, comprising:

[0013] Based on the control model, the voltage of the corresponding device bus layer is controlled through multiple distributed converters connected to the application layer bus; wherein each distributed converter is configured with a different device layer bus, and each device layer bus is respectively connected to a wind turbine, a photovoltaic power station, and a hydrogen production power source;

[0014] The control model is as follows:

[0015]

[0016] Among them, e wind (t) = U wind_ref (t)-U wind (t), U wind_ref (t) represents the voltage reference value of the wind turbine generator set, U wind (t) represents the actual value of the wind turbine voltage, K wind_p represents the ratio of the wind turbine voltage controller, represents the integral of the wind turbine voltage controller, represents the differential gain of the wind turbine voltage controller, i wind_ref (t) represents the current reference value output by the wind turbine; e pv (t) = U pv_ref (t)-U pv (t), U pv_ref (t) represents the voltage reference value of the photovoltaic power station, U pv (t) represents the actual voltage value of the photovoltaic power station, Indicates the ratio of the voltage controller of the photovoltaic power station, represents the integral of the voltage controller of the photovoltaic power station, represents the differential gain of the photovoltaic power station voltage controller, i pv_ref (t) represents the current reference value output by the photovoltaic power station; It indicates the reference value of hydrogen production power supply voltage. Indicates the actual value of hydrogen production power supply voltage, Indicates the ratio of the hydrogen production power supply voltage controller, represents the integral of the hydrogen production power supply voltage controller, represents the differential gain of the hydrogen production power supply voltage controller, Indicates the current reference value of the hydrogen production power supply output; E bus_maxIndicates the upper limit of the error current allowed by the equipment layer bus; when the wind turbine, photovoltaic power station and hydrogen power supply are connected to the equipment layer bus for operation,

[0017] The present invention also 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 computer program, the method for stable operation of a power supply device as described above is implemented.

[0018] The present invention also provides a non-transitory computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the method for stable operation of a power supply device as described in any one of the above is implemented.

[0019] The present invention also provides a computer program product, comprising a computer program, wherein when the computer program is executed by a processor, the computer program implements any of the above-mentioned methods for stable operation of power supply equipment.

[0020] The power supply equipment stabilization control system and stabilization control operation method provided by the present invention, each equipment layer bus is respectively connected to the hydrogen production power supply and at least one power supply device, so as to realize the connection between the hydrogen production power supply and the power supply device, so that sufficient electric energy can be provided for the hydrogen production power supply through the equipment layer bus and at least one power supply device, without relying on the large power grid to provide electric energy, realizing off-grid operation and reducing the cost of hydrogen production. In addition, the voltage of each equipment layer bus is controlled by the corresponding distributed converter on the application layer bus to realize the stability of the voltage of the equipment layer bus, that is, it can enable at least one power supply device on the equipment layer bus to stably provide electric energy for the hydrogen production power supply, so that the electrolyzer connected to the hydrogen production device can stably produce hydrogen. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a structural schematic diagram of the power supply equipment stabilization control system provided by the present invention;

[0023] Figure 2 It is a schematic flow chart of the electrolytic cell parking method provided by the present invention;

[0024] Figure 3 It is a structural schematic diagram of the electronic device provided by the present invention. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. 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 ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] At present, most of the electricity required for hydrogen production is provided by the large power grid to generate the corresponding direct current to the electrolyzer for electrolysis of water to produce hydrogen. However, the electricity cost of the electricity required for hydrogen production accounts for a large proportion, resulting in high hydrogen production costs. In addition, the large power grid cannot cover some remote areas. If the hydrogen production method in the existing technology is used, it is necessary to build additional corresponding transmission lines in remote areas, further increasing the cost of hydrogen production.

[0027] In this regard, the present invention provides a power supply equipment stabilization control system. Figure 1 is a schematic diagram of the structure of the power supply equipment stabilization control system provided by the present invention, such as Figure 1 As shown, the system includes:

[0028] An application layer bus and multiple device layer busses, the application layer busses are connected to multiple distributed converters, and each distributed converter is configured with a different device layer bus for controlling the voltage of the corresponding device layer bus; each device layer bus is respectively connected to a hydrogen production power supply and at least one power supply device.

[0029] Specifically, the application layer bus is connected to multiple distributed converters, thereby realizing connectivity between multiple distributed converters. In addition, each distributed converter is configured with a corresponding device layer bus, that is, each distributed converter is configured with a different device layer bus. Each device layer bus is respectively connected to a hydrogen production power source and at least one power supply device, that is, the hydrogen production power source is connected to at least one device, and the power supply device may include a wind turbine, a photovoltaic power station, etc.

[0030] The power supply equipment refers to a system for generating electric energy and supplying and delivering it to electric equipment, that is, the power supply equipment can provide the electric energy required by the electrolyzer connected to the hydrogen production power supply. In other words, when the electric energy of the hydrogen production power supply is insufficient, it can be connected to at least one power supply equipment through the equipment layer busbar to provide sufficient electric energy for the hydrogen production power supply, that is, the embodiment of the present invention does not need to rely on the large power grid to provide electric energy, thereby reducing the cost of hydrogen production.

[0031] In addition, the voltage of each device layer bus can be controlled by the corresponding distributed converter on the application layer bus to achieve voltage stability of the device layer bus, that is, at least one power supply device on the device layer bus can stably provide electrical energy for the hydrogen production power supply, so that the electrolyzer connected to the hydrogen production device can stably produce hydrogen.

[0032] It should be noted that the application layer bus and the equipment layer bus can not only operate independently horizontally, but also be linked vertically, so as to realize the linkage of energy flow and / or information flow of the system, meet the flexible configuration of multi-point access and hydrogen production power sources such as wind turbines and photovoltaic power stations, and maximize the economic efficiency of hydrogen production from renewable energy through off-grid operation.

[0033] In the power supply equipment stabilization control system provided by the embodiment of the present invention, each device layer bus is respectively connected to the hydrogen production power supply and at least one power supply device to achieve the connection between the hydrogen production power supply and the power supply device, so that sufficient electric energy can be provided for the hydrogen production power supply through the device layer bus and at least one power supply device, without relying on the large power grid to provide electric energy, and off-grid operation is achieved, thereby reducing the cost of hydrogen production. In addition, the voltage of each device layer bus is controlled by the corresponding distributed converter on the application layer bus to achieve the stability of the voltage of the device layer bus, that is, it can enable at least one power supply device on the device layer bus to stably provide electric energy for the hydrogen production power supply, so that the electrolyzer connected to the hydrogen production device can stably produce hydrogen.

[0034] Based on the above embodiments, each distributed converter is connected to a corresponding energy storage device.

[0035] Specifically, an energy storage device refers to a device that stores electrical energy through a medium or device so that it can be released through the energy storage device when needed. Each distributed converter is connected to a corresponding energy storage device to provide voltage / power support. For example, when the power supply equipment is unable to supply power to the hydrogen production power supply, the energy storage device can provide the electrolyzer of the hydrogen production device with electricity for safe parking, so that the electrolyzer can stop smoothly and avoid the problem of equipment damage caused by sudden parking of the electrolyzer.

[0036] Based on any of the above embodiments, the system also includes a platform layer bus, to which multiple collaborative control units are connected, and each collaborative control unit is configured with a different application layer bus for controlling the charging status of the energy storage device connected to the distributed converter on the corresponding application layer bus.

[0037] Specifically, multiple collaborative control units are connected to the platform layer bus, and each collaborative control unit is configured with a different application layer bus, so that each collaborative control unit can be connected to the distributed converter of the corresponding application layer bus, and then can control the charging state of the energy storage device connected to the distributed converter on the corresponding application layer bus, such as the collaborative control unit controls the energy storage device to be in a fully charged state.

[0038] In addition, each distributed converter is configured with a different equipment-layer bus, and thus each collaborative control unit can obtain the status data of the power supply equipment and the hydrogen production power supply connected to each equipment-layer bus through each distributed converter, and then coordinate and control each distributed converter to control the voltage of the corresponding equipment-layer bus according to the status data, so as to achieve the stability of the voltage of the equipment-layer bus, that is, to enable at least one power supply equipment on the equipment-layer bus to stably provide electrical energy to the hydrogen production power supply, so that the electrolyzer connected to the hydrogen production device can stably produce hydrogen.

[0039] Based on any of the above embodiments, the power supply equipment includes a hydrogen production power supply, and the minimum capacity value of the energy storage device is the lower limit of the allowable load range corresponding to the electrolyzer connected to the hydrogen production power supply.

[0040] Specifically, the minimum capacity value of the energy storage device is the lower limit of the load allowable range corresponding to the electrolyzer connected to the hydrogen production power source, which means that in the power system, the capacity value of the energy storage device should be greater than or equal to the lower limit of the load allowable range of the electrolyzer. Among them, the capacity value of the energy storage device should be greater than or equal to the lower limit of the load allowable range of the electrolyzer, so that when the energy storage device supplies power to the hydrogen production power source, the discharge current of the energy storage device is greater than the minimum allowable current of the electrolyzer and the maintenance time of the discharge current is greater than the minimum safe parking time of the electrolyzer, so as to ensure the safe parking of the electrolyzer, so as to ensure the stability and safety of the power system.

[0041] Based on any of the above embodiments, each collaborative control unit is used to control the electrolytic cell to stop when the discharge current of the energy storage device is greater than the minimum allowable current of the electrolytic cell and the maintenance time of the discharge current is greater than the minimum safe stopping time of the electrolytic cell.

[0042] The minimum capacity value of the energy storage device is the lower limit of the load allowable range of the electrolyzer connected to the hydrogen production power supply. When the electrolyzer is shut down, the energy storage device provides a safety power supply. For example, when only the energy storage device is used as a power source to supply power to the hydrogen production power supply, the following conditions must be met: the discharge current of the energy storage device is greater than the minimum allowable current of the electrolyzer and the duration of the discharge current is greater than the minimum safe shutdown time of the electrolyzer, that is:

[0043]

[0044] Among them, I ch Represents the discharge current of the energy storage device, C ch Indicates the charge and discharge times of the energy storage battery of the energy storage device. Indicates the minimum allowable current of the electrolytic cell (i.e. the minimum allowable current of the load). It represents the minimum safe parking time of the electrolytic cell, and C represents the battery charge and discharge capacity rate.

[0045] like Figure 2As shown, the cooperative control unit controls the energy storage device to be in a fully charged state. When the electrolyzer is exiting, the energy storage device provides a safety power supply. Next, it is determined whether the discharge current of the energy storage device is greater than the minimum allowable current of the electrolyzer and whether the maintenance time of the discharge current is greater than the minimum safe parking time of the electrolyzer. If so, the electrolyzer is controlled to stop.

[0046] Based on any of the above embodiments, the system further includes a platform control system, which is connected to the platform layer bus and is used to coordinate and control each collaborative control unit.

[0047] Specifically, the system also includes a platform management and control system, which is connected to the platform layer bus to achieve connectivity with each collaborative control unit, and then can coordinate and control each collaborative control unit to achieve collaborative operation of the entire system.

[0048] The stable control operation method of the power supply equipment provided by the present invention is described below. The stable control operation method of the power supply equipment described below and the stable control system of the power supply equipment described above can be referred to each other.

[0049] Based on any of the above embodiments, the present invention further provides a method for stable operation of a power supply device, comprising:

[0050] Based on the control model, the voltage of the corresponding device bus layer is controlled through multiple distributed converters connected to the application layer bus; wherein each distributed converter is configured with a different device layer bus, and each device layer bus is respectively connected to a wind turbine, a photovoltaic power station, and a hydrogen production power source;

[0051] The control model is as follows:

[0052]

[0053] Among them, e wind (t) = U wind_ref (t)-U wind (t), U wind_ref (t) represents the voltage reference value of the wind turbine generator set, U wind (t) represents the actual value of the wind turbine voltage, represents the ratio of the wind turbine voltage controller, represents the integral of the wind turbine voltage controller, represents the differential gain of the wind turbine voltage controller, Indicates the current reference value output by the wind turbine; e pv (t) = U pv_ref (t)-U pv (t), U pv_ref (t) represents the voltage reference value of the photovoltaic power station, U pv (t) represents the actual voltage value of the photovoltaic power station, Indicates the ratio of the voltage controller of the photovoltaic power station, represents the integral of the voltage controller of the photovoltaic power station, represents the differential gain of the photovoltaic power station voltage controller, i pv_ref (t) represents the current reference value output by the photovoltaic power station; It indicates the reference value of hydrogen production power supply voltage. Indicates the actual value of hydrogen production power supply voltage, Indicates the ratio of the hydrogen production power supply voltage controller, represents the integral of the hydrogen production power supply voltage controller, represents the differential gain of the hydrogen production power supply voltage controller, Indicates the current reference value of the hydrogen production power supply output; E bus_max Indicates the upper limit of the error current allowed by the equipment layer bus; when the wind turbine, photovoltaic power station and hydrogen power supply are connected to the equipment layer bus for operation, the equipment layer bus voltage

[0054] Specifically, the application layer bus is connected to multiple distributed converters, thereby realizing connectivity between multiple distributed converters. In addition, each distributed converter is configured with a corresponding device layer bus, that is, each distributed converter is configured with a different device layer bus. Each device layer bus is respectively connected to a hydrogen production power source and at least one power supply device, that is, the hydrogen production power source is connected to at least one device, and the power supply device may include a wind turbine, a photovoltaic power station, etc.

[0055] The power supply equipment refers to a system for generating electric energy and supplying and delivering it to electric equipment, that is, the power supply equipment can provide the electric energy required by the electrolyzer connected to the hydrogen production power supply. In other words, when the electric energy of the hydrogen production power supply is insufficient, it can be connected to at least one power supply equipment through the equipment layer busbar to provide sufficient electric energy for the hydrogen production power supply, that is, the embodiment of the present invention does not need to rely on the large power grid to provide electric energy, thereby reducing the cost of hydrogen production.

[0056] In addition, the voltage of each device layer bus can be controlled by the corresponding distributed converter on the application layer bus to achieve voltage stability of the device layer bus, that is, at least one power supply device on the device layer bus can stably provide electrical energy for the hydrogen production power supply, so that the electrolyzer connected to the hydrogen production device can stably produce hydrogen.

[0057] It should be noted that the application layer bus and the equipment layer bus can not only operate independently horizontally, but also be linked vertically, so as to realize the linkage of energy flow and / or information flow of the system, meet the flexible configuration of multi-point access and hydrogen production power sources such as wind turbines and photovoltaic power stations, and maximize the economic efficiency of hydrogen production from renewable energy through off-grid operation.

[0058] In the stable control operation method of the power supply equipment provided by the embodiment of the present invention, each device layer bus is respectively connected to the hydrogen production power supply and at least one power supply device to achieve the connection between the hydrogen production power supply and the power supply device, so that sufficient electric energy can be provided for the hydrogen production power supply through the device layer bus and at least one power supply device, without relying on the large power grid to provide electric energy, and off-grid operation is achieved, thereby reducing the cost of hydrogen production. In addition, the voltage of each device layer bus is controlled by the corresponding distributed converter on the application layer bus to achieve the stability of the voltage of the device layer bus, that is, it can enable at least one power supply device on the device layer bus to stably provide electric energy for the hydrogen production power supply, so that the electrolyzer connected to the hydrogen production device can stably produce hydrogen.

[0059] Figure 3 is a schematic diagram of the structure of the electronic device provided by the present invention, such as Figure 3 As shown, the electronic device may include: a processor 310, a memory 320, a communications interface 330 and a communications bus 340, wherein the processor 310, the memory 320 and the communications interface 330 communicate with each other through the communications bus 340. The processor 310 may call the logic instructions in the memory 320 to execute the stable operation method of the power supply equipment, the method comprising: based on the control model, controlling the voltage of the corresponding device bus layer through multiple distributed converters connected to the application layer bus; wherein each distributed converter is configured with a different device layer bus, and each device layer bus is respectively connected to the wind turbine, the photovoltaic power station and the hydrogen production power source.

[0060] In addition, the logic instructions in the above-mentioned memory 320 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when it is sold or used as an independent product. Based on such an understanding, the technical solution of the present invention, in essence, 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, and the computer software product is stored in a storage medium, including a number of 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 method 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 and other media that can store program codes.

[0061] On the other hand, the present invention also provides a computer program product, which includes a computer program stored on a non-transitory computer-readable storage medium, and the computer program includes program instructions. When the program instructions are executed by a computer, the computer can execute the stable operation method of the power supply equipment provided by the above methods, and the method includes: based on the control model, controlling the voltage of the corresponding device bus layer through multiple distributed converters connected to the application layer bus; wherein each distributed converter is configured with a different device layer bus, and each device layer bus is respectively connected to a wind turbine, a photovoltaic power station and a hydrogen production power source.

[0062] On the other hand, the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, is implemented to execute the above-mentioned power supply equipment stable control operation method, the method comprising: based on a control model, controlling the voltage of the corresponding device bus layer through multiple distributed converters connected to the application layer bus; wherein each distributed converter is configured with a different device layer bus, and each device layer bus is respectively connected to a wind turbine, a photovoltaic power station and a hydrogen production power source.

[0063] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0064] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A power supply equipment stabilization control system, characterized in that: include: An application layer bus and multiple device layer busses, wherein the application layer busses are connected to multiple distributed converters, and each distributed converter is configured with a different device layer bus for controlling the voltage of the corresponding device layer bus; each device layer bus is respectively connected to a hydrogen production power source and at least one power supply device.

2. The power supply equipment stabilization control system according to claim 1, characterized in that: Each distributed converter is connected to a corresponding energy storage device.

3. The power supply equipment stabilization control system according to claim 2, characterized in that: The system also includes a platform layer bus, to which a plurality of collaborative control units are connected, and each collaborative control unit is configured with a different application layer bus for controlling the charging state of an energy storage device connected to a distributed converter on the corresponding application layer bus.

4. The power supply equipment stabilization control system according to claim 2, characterized in that: The power supply equipment includes a hydrogen production power supply, and the minimum capacity value of the energy storage device is the lower limit value of the load allowable range corresponding to the electrolyzer connected to the hydrogen production power supply.

5. The power supply equipment stabilization control system according to claim 4, characterized in that: Each collaborative control unit is used to control the electrolytic cell to stop when the discharge current of the energy storage device is greater than the minimum allowable current of the electrolytic cell and the maintenance time of the discharge current is greater than the minimum safe stopping time of the electrolytic cell.

6. The power supply equipment stabilization control system according to claim 2, characterized in that: The system also includes a platform control system, which is connected to the platform layer bus and is used to coordinate and control each collaborative control unit.

7. A method for stable operation of power supply equipment, characterized in that: include: Based on the control model, the voltage of the corresponding device bus layer is controlled through multiple distributed converters connected to the application layer bus; wherein each distributed converter is configured with a different device layer bus, and each device layer bus is respectively connected to a wind turbine, a photovoltaic power station, and a hydrogen production power source; The control model is as follows: Among them, e wind (t) = U wind_ref (t)-U wind (t), U wind_ref (t) represents the voltage reference value of the wind turbine generator set, U wind (t) represents the actual value of the wind turbine voltage, K wind_p Indicates the ratio of the wind turbine voltage controller, K wind_i represents the integral of the wind turbine voltage controller, K wind_d represents the differential gain of the wind turbine voltage controller, i wind_ref (t) represents the current reference value output by the wind turbine; e pv (t) = U pv_ref (t)-U pv (t), U pv_ref (t) represents the voltage reference value of the photovoltaic power station, U pv (t) represents the actual voltage value of the photovoltaic power station, Indicates the ratio of the voltage controller of the photovoltaic power station, represents the integral of the voltage controller of the photovoltaic power station, represents the differential gain of the photovoltaic power station voltage controller, i pv_ref (t) represents the current reference value output by the photovoltaic power station; It indicates the reference value of hydrogen production power supply voltage. Indicates the actual value of hydrogen production power supply voltage, Indicates the ratio of the hydrogen production power supply voltage controller, represents the integral of the hydrogen production power supply voltage controller, represents the differential gain of the hydrogen production power supply voltage controller, Indicates the current reference value of the hydrogen production power supply output; E bus_max Indicates the upper limit of the error current allowed by the equipment layer bus; when the wind turbine, photovoltaic power station and hydrogen power supply are connected to the equipment layer bus for operation, 8. 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 computer program, the method for stable operation of the power supply equipment as claimed in claim 7 is implemented.

9. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by the processor, the method for stable operation of the power supply equipment as claimed in claim 7 is implemented.

10. A computer program product, comprising a computer program, characterized in that When the computer program is executed by the processor, the method for stable operation of the power supply equipment as claimed in claim 7 is implemented.

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