Power supply system of low-temperature heat supply reactor

Abstract

The invention relates to a power supply system of a low-temperature heat supply reactor. The power supply system comprises solar power supply equipment, wind energy power supply equipment, energy storage equipment and control equipment, a first energy storage battery included in the energy storage equipment is connected with a core load in the low-temperature heat supply pile, and a second energy storage battery included in the energy storage equipment is connected with a non-core load in the low-temperature heat supply pile; the control equipment is used for acquiring power generation data, energy storage data, demand data and electricity price peak and valley information, and generating a power supply strategy based on the power generation data, the energy storage data, the demand data and the electricity price peak and valley information; the power generation data comprises a first power generation amount of solar power supply equipment and a second power generation amount of wind power supply equipment, and the energy storage data comprises a first electric quantity of a first energy storage battery and a second electric quantity of a second energy storage battery; the solar power supply device, the wind power supply device and the energy storage device are used for supplying power to the core load and the non-core load based on a power supply strategy. By adopting the power supply system of the low-temperature heat supply reactor, the power supply cost can be reduced.

Description

Technical Field

[0001] This application relates to the field of power supply technology, and in particular to a power supply system for a cryogenic heating reactor. Background Technology

[0002] Low-temperature heating reactors are clean and low-carbon nuclear facilities whose core function is to output low-temperature steam or hot water. With their safe and controllable characteristics and stable energy output, they can be widely used in urban central heating, industrial steam supply and other livelihood and industrial scenarios.

[0003] Current designs utilize the external public power grid to supply all the electricity needed for the cryogenic heating reactor, which is inherently uneconomical. Furthermore, this method of supplying power to the plant using the external public power grid presents a high cost problem. Summary of the Invention

[0004] Therefore, it is necessary to provide a power supply system for a cryogenic heating reactor that can reduce power supply costs, addressing the aforementioned technical problems.

[0005] In a first aspect, this application provides a power supply system for a cryogenic heating reactor, which includes solar power supply equipment, wind power supply equipment, energy storage equipment, and control equipment; wherein, the energy storage equipment includes a first energy storage battery and a second energy storage battery, the first energy storage battery being connected to the core load in the cryogenic heating reactor, and the second energy storage battery being connected to the non-core load in the cryogenic heating reactor.

[0006] Control equipment is used to acquire power generation data, energy storage data, demand data, and peak and valley electricity price information, and to generate power supply strategies based on the power generation data, energy storage data, demand data, and peak and valley electricity price information;

[0007] Among them, the power generation data includes the first power generation of the solar power equipment and the second power generation of the wind power equipment; the energy storage data includes the first energy capacity of the first energy storage battery and the second energy capacity of the second energy storage battery; and the demand data includes the first demand of the core load and the second demand of the non-core load.

[0008] Solar power equipment, wind power equipment, and energy storage equipment are used to power core and non-core loads based on power supply strategies.

[0009] In one embodiment, the power supply strategy includes a first power supply strategy and a second power supply strategy; the control device is used to generate the first power supply strategy based on power generation data, energy storage data and demand data when the electricity price peak-valley information is at its peak; the control device is also used to generate the second power supply strategy based on power generation data, energy storage data and demand data when the electricity price peak-valley information is at its valley.

[0010] In one embodiment, the control device is configured to determine whether the power generation data meets the first requirement when the electricity price peak-valley information is at its peak; if so, determine that the first power supply strategy is to use solar power equipment and wind power equipment to power the core load. The control device is further configured to determine whether the power generation data meets the first requirement when the electricity price peak-valley information is at its peak; if not, determine whether the power generation data and the first electricity quantity meet the first requirement; if so, determine that the first power supply strategy is to use solar power equipment, wind power equipment, and the first energy storage battery to power the core load. The control device is further configured to determine whether the power generation data meets the first requirement when the electricity price peak-valley information is at its peak; if not, determine whether the power generation data and the first electricity quantity meet the first requirement; if not, determine that the first power supply strategy is to use solar power equipment, wind power equipment, the first energy storage battery, and the power grid to power the core load.

[0011] In one embodiment, the control device is further configured to determine whether the second power supply meets the second demand when the electricity price peak-valley information is at its peak; if so, the first power supply strategy is to use the second energy storage battery to power non-core loads. The control device is further configured to determine whether the second power supply meets the second demand when the electricity price peak-valley information is at its peak; if not, the remaining power supply after the power generation data meets the first demand is determined based on the power generation data and the first demand, and to determine whether the remaining power supply and the second power supply meet the second demand; if so, the first power supply strategy is to use solar power supply equipment, wind power supply equipment, and the second energy storage battery to power non-core loads.

[0012] In one embodiment, the power supply system further includes a nuclear-grade grid-connected cabinet; the nuclear-grade grid-connected cabinet is used to provide safety protection for solar power equipment, wind power equipment, energy storage equipment, core loads and non-core loads; wherein the safety protection includes overcurrent protection, overvoltage protection, undervoltage protection, leakage protection, short circuit protection, overload protection, anti-islanding protection, battery protection, fault isolation protection and radiation power supply linkage protection.

[0013] In one embodiment, the control device is further configured to acquire meteorological data and determine a first predicted power generation capacity of the solar power supply device and a second predicted power generation capacity of the wind power supply device based on the meteorological data.

[0014] In one embodiment, the solar power supply device includes a tracking bracket; and a control device for determining an angle adjustment strategy for the tracking bracket based on a maximum power point tracking algorithm; wherein the angle adjustment strategy is used to adjust the angle of the tracking bracket.

[0015] In one embodiment, a control device is used to acquire the current wind speed and determine a rotational speed optimization strategy based on the current wind speed using a maximum power point tracking algorithm; wherein the rotational speed optimization strategy is used to adjust the rotational speed of the blades of the wind power supply equipment.

[0016] In one embodiment, the power supply system further includes a diesel generator; the diesel generator is used to supply power to the core load when the sum of the first power generation and the second power generation is less than a preset power generation threshold, and the sum of the first power generation and the second power generation is less than a preset power generation threshold.

[0017] In one embodiment, the control device is also configured to detect the number of cycles and internal resistance of the energy storage device, and determine the health status information of the energy storage device based on the number of cycles and internal resistance.

[0018] The power supply system of the aforementioned cryogenic heating reactor includes solar power equipment, wind power equipment, energy storage equipment, and control equipment. The energy storage equipment includes a first energy storage battery and a second energy storage battery. The first energy storage battery is connected to the core load in the cryogenic heating reactor, and the second energy storage battery is connected to the non-core load. The control equipment is used to acquire power generation data, energy storage data, demand data, and peak / valley electricity price information, and to generate a power supply strategy based on these data. The power generation data includes the first power generation of the solar power equipment and the second power generation of the wind power equipment; the energy storage data includes the first charge of the first energy storage battery and the second charge of the second energy storage battery; and the demand data includes the first demand of the core load and the second demand of the non-core load. The solar power equipment, wind power equipment, and energy storage equipment are used to supply power to the core load and non-core load based on the power supply strategy. The cryogenic heating reactor power supply system provided can supply power to both the core and non-core loads in the cryogenic heating reactor through solar power equipment and wind power equipment, effectively reducing power supply costs. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the drawings used in the description of the embodiments of this application or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the power supply system for a cryogenic heating reactor in one embodiment;

[0021] Figure 2 This is a schematic diagram of the power supply system for a cryogenic heating reactor in another embodiment. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0023] It should be noted that the terms "first," "second," etc., used in this application can be used to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish the first element from the second element. The terms "comprising" and "having," and any variations thereof, used in this application, are intended to cover non-exclusive inclusion. The term "multiple" used in this application refers to two or more. The term "and / or" used in this application refers to one of the embodiments, or any combination of multiple embodiments.

[0024] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0025] Low-temperature heating reactors are clean and low-carbon nuclear facilities whose core function is to output low-temperature steam or hot water. With their safe and controllable characteristics and stable energy output, they are widely used in urban central heating, industrial steam supply and other livelihood and industrial scenarios.

[0026] In existing technologies, most rely on external public power grids to supply electricity to cryogenic heating reactors. However, this method of using external public power grids for electricity supply is costly.

[0027] In view of this, this application provides a power supply system for a cryogenic heating reactor. The power supply system includes solar power equipment, wind power equipment, energy storage equipment, and control equipment. The energy storage equipment includes a first energy storage battery and a second energy storage battery. The first energy storage battery is connected to the core load in the cryogenic heating reactor, and the second energy storage battery is connected to the non-core load in the cryogenic heating reactor. The control equipment is used to acquire power generation data, energy storage data, demand data, and peak / valley electricity price information, and to generate a power supply strategy based on these data. The power generation data includes the first power generation of the solar power equipment and the second power generation of the wind power equipment; the energy storage data includes the first charge of the first energy storage battery and the second charge of the second energy storage battery; and the demand data includes the first demand of the core load and the second demand of the non-core load. The solar power equipment, wind power equipment, and energy storage equipment are used to supply power to the core load and non-core load based on the power supply strategy. The power supply system for the cryogenic heating reactor provided by this application can supply power to both the core load and non-core load in the cryogenic heating reactor through the solar power equipment and the wind power equipment, effectively reducing power supply costs.

[0028] In one exemplary embodiment, such as Figure 1 As shown, a power supply system 100 for a cryogenic heating reactor is provided. The power supply system 100 for the cryogenic heating reactor includes a solar power supply device 101, a wind power supply device 102, an energy storage device 103, and a control device 104.

[0029] The energy storage device 103 includes a first energy storage battery 1031 and a second energy storage battery 1032. The first energy storage battery 1031 is connected to the core load (not shown in the figure) in the cryogenic heating reactor, and the second energy storage battery 1032 is connected to the non-core load (not shown in the figure) in the cryogenic heating reactor.

[0030] Optionally, the solar power supply equipment may include a solar array. For example, solar arrays can be constructed on building rooftops, parking lots, and open spaces in factory areas. The components of the solar array can be bifacial photovoltaic panels, which can increase annual power generation by 15% compared to single-sided photovoltaic panels. Furthermore, in some special scenarios, the solar array can be equipped with electrically heated snow removal belts or automatic roll-up dustproof films.

[0031] Wind power supply equipment can be from external wind power plants (with long-term power supply agreements) or self-built wind turbines. The generators should be low-wind-speed start-up models, with a starting wind speed ≤3m / s. Furthermore, in some special scenarios, the blades of the wind power supply equipment can be coated with a superhydrophobic and dust-resistant coating.

[0032] The first energy storage battery can be a conventional lithium iron phosphate battery, and the second energy storage battery can be a secondary lithium iron phosphate battery. For example, the first energy storage battery and the second energy storage battery account for 70% and 30%, respectively. Furthermore, the energy storage device also includes an energy storage compartment and a nuclear-grade shielded enclosure, wherein the energy storage compartment is insulated with electric heat tracing.

[0033] Core loads can include intermediate circulation pumps, safety injection pumps, control rod drive mechanisms, and important valves. Non-core loads can include lighting systems, plant ventilation equipment, auxiliary monitoring instruments, office electrical equipment, and fire emergency auxiliary devices.

[0034] In some exemplary embodiments, the control device can be used to acquire power generation data, energy storage data, demand data, and peak and valley electricity price information, and generate a power supply strategy based on the power generation data, energy storage data, demand data, and peak and valley electricity price information.

[0035] The power generation data includes the first power generation of the solar power equipment and the second power generation of the wind power equipment; the energy storage data includes the first energy storage capacity of the first energy storage battery and the second energy storage capacity of the second energy storage battery; and the demand data includes the first demand of the core load and the second demand of the non-core load.

[0036] For example, the control device can use mixed integer programming algorithms and model predictive control algorithms to generate power supply strategies based on power generation data, energy storage data, demand data, and peak and valley electricity prices.

[0037] Furthermore, solar power equipment, wind power equipment, and energy storage equipment can be used to power core loads and non-core loads based on power supply strategies.

[0038] The power supply system of the aforementioned cryogenic heating reactor includes solar power equipment, wind power equipment, energy storage equipment, and control equipment. The energy storage equipment includes a first energy storage battery and a second energy storage battery. The first energy storage battery is connected to the core load in the cryogenic heating reactor, and the second energy storage battery is connected to the non-core load. The control equipment is used to acquire power generation data, energy storage data, demand data, and peak / valley electricity price information, and to generate a power supply strategy based on these data. The power generation data includes the first power generation of the solar power equipment and the second power generation of the wind power equipment; the energy storage data includes the first charge of the first energy storage battery and the second charge of the second energy storage battery; and the demand data includes the first demand of the core load and the second demand of the non-core load. The solar power equipment, wind power equipment, and energy storage equipment are used to supply power to the core load and non-core load based on the power supply strategy. The cryogenic heating reactor power supply system provided can supply power to both the core and non-core loads in the cryogenic heating reactor through solar power equipment and wind power equipment, effectively reducing power supply costs.

[0039] In one exemplary embodiment, such as Figure 2 As shown, the power supply system 100 also includes a nuclear-grade grid-connected cabinet 105, a main transformer 106, and a plant transformer 107.

[0040] Optionally, the nuclear-grade grid-connected cabinet may include a static switch (STS, switching time ≤20ms), anti-islanding protection devices, radiation shielding enclosure, bidirectional smart meters, etc. The plant transformer may be a dry-type transformer.

[0041] For example, Figure 2 The main transformer is the main transformer, the grid-connected control cabinet is the nuclear-grade grid-connected cabinet, the plant transformer is the plant transformer, the energy storage is the energy storage equipment, the wind power matrix is ​​the wind power supply equipment, and the solar power matrix is ​​the solar power supply equipment.

[0042] In some exemplary embodiments, nuclear-grade grid-connected cabinets can be used to provide safety protection for solar power equipment, wind power equipment, energy storage equipment, core loads and non-core loads.

[0043] The safety protection includes overcurrent protection, overvoltage protection, undervoltage protection, leakage protection, short circuit protection, overload protection, anti-islanding protection, battery protection, fault isolation protection, and radiation power supply linkage protection.

[0044] Specifically, overcurrent protection is provided at the output terminals of wind power and solar power equipment, as well as in the charging and discharging circuits of energy storage equipment. Nuclear-grade circuit breakers are used, with an operating time of ≤10ms.

[0045] Overvoltage / undervoltage protection: Installed at the input end of wind power supply equipment, solar power supply equipment, and energy storage equipment, with threshold values ​​adapted to the voltage range of nuclear equipment, and employing an anti-interference voltage monitoring module.

[0046] Leakage protection / short circuit protection / overload protection: Nuclear-grade insulation material is selected, short circuit breaking capacity is ≥50kA, and overload protection operating current is set at 1.2 times the rated current.

[0047] Anti-islanding protection: Installed at the connection point between distributed power sources and the power grid, it adds a radiation dose linkage function. When the radiation exceeds the standard, it automatically disconnects the distributed power source and switches to energy storage equipment and diesel generator for power supply.

[0048] Battery protection: The energy storage device management system monitors the internal resistance of the secondary energy storage battery and the temperature of the regular battery in real time to prevent overcharging and over-discharging. Furthermore, in special scenarios, an early warning system for excessively low battery compartment temperature is added.

[0049] Fault isolation protection: The core load power supply circuit is equipped with a nuclear-grade isolation valve group, which cuts off the fault circuit within 20ms in the event of a fault, so as to avoid affecting other systems.

[0050] Radiation power supply linkage protection: A radiation monitoring module is installed. When the dose is >100μSv / h, the warning is automatically uploaded to the nuclear safety supervision platform and the system switches to emergency power supply mode.

[0051] In some exemplary embodiments, the power supply system further includes a diesel generator; the diesel generator is used to supply power to the core load when the sum of the first power generation and the second power generation is less than a preset power generation threshold, and the sum of the first power generation and the second power generation is less than a preset power generation threshold.

[0052] In an optional embodiment of this application, as described above, the power supply system has an emergency power supply mode, which refers to supplying power to the core load based on a diesel generator and the power grid.

[0053] In one exemplary embodiment, the power supply strategy includes a first power supply strategy and a second power supply strategy.

[0054] In some exemplary embodiments, the control device can be used to generate a first power supply strategy based on power generation data, energy storage data, and demand data when the electricity price peak-valley information is at its peak.

[0055] Furthermore, the control equipment can also be used to generate a second power supply strategy based on power generation data, energy storage data, and demand data when the electricity price peak-valley information is at a low point.

[0056] In an exemplary embodiment, the control device can be used to determine whether the power generation data meets the first requirement when the electricity price peak-valley information is at its peak, and if so, determine the first power supply strategy as using solar power equipment and wind power equipment to power the core load.

[0057] Furthermore, the control equipment can also be used to determine whether the power generation data meets the first requirement when the electricity price peak-valley information is at its peak. If not, it can determine whether the power generation data and the first power quantity meet the first requirement. If so, it can determine that the first power supply strategy is to use solar power equipment, wind power equipment and the first energy storage battery to power the core load.

[0058] Furthermore, the control equipment can also be used to determine whether the power generation data meets the first requirement when the electricity price peak-valley information is at its peak. If not, it can determine whether the power generation data and the first power volume meet the first requirement. If not, it can determine that the first power supply strategy is to use solar power equipment, wind power equipment, the first energy storage battery and the power grid to power the core load.

[0059] In an exemplary embodiment, the control device can also be used to determine whether the second power supply meets the second demand when the electricity price peak-valley information is at its peak, and if so, determine that the first power supply strategy is to use the second energy storage battery to supply power to non-core loads.

[0060] Furthermore, the control device can also be used to determine whether the second power supply meets the second demand when the electricity price peak-valley information is at its peak. If not, it determines the remaining power supply after the power generation data meets the first demand based on the power generation data and the first demand, and determines whether the remaining power supply and the second power supply meet the second demand. If yes, it determines that the first power supply strategy is to use solar power supply equipment, wind power supply equipment and the second energy storage battery to supply power to non-core loads.

[0061] In one alternative embodiment, the control device can also be used to charge the energy storage device using the power grid when the electricity price peak-valley information is at a low point. Alternatively, the control device can prioritize charging the second energy storage battery.

[0062] In one exemplary embodiment, the control device can also be used to acquire meteorological data and determine a first predicted power generation capacity of the solar power supply device and a second predicted power generation capacity of the wind power supply device based on the meteorological data.

[0063] In some exemplary embodiments, the control device can input the acquired meteorological data into a pre-trained machine learning model to obtain the first predicted power generation of the solar power equipment and the second predicted power generation of the wind power equipment output by the machine learning model.

[0064] In one exemplary embodiment, the solar power supply device further includes a tracking bracket, and the control device is also used to determine an angle adjustment strategy for the tracking bracket based on a maximum power point tracking algorithm.

[0065] The angle adjustment strategy is used to adjust the angle of the tracking bracket.

[0066] In one exemplary embodiment, the control device is also configured to acquire the current wind speed and determine a rotational speed optimization strategy based on the current wind speed using a maximum power point tracking algorithm.

[0067] Among them, the speed optimization strategy is used to adjust the speed of the blades of the wind power supply equipment.

[0068] In one exemplary embodiment, the control device can also be used to detect the number of cycles and internal resistance of the energy storage device, and determine the health status information of the energy storage device based on the number of cycles and internal resistance.

[0069] In some exemplary embodiments, the computer device can compare the number of cycles with a preset number of cycles threshold and compare the internal resistance with a preset internal resistance threshold to determine the health status information of the energy storage device based on the comparison results, thereby avoiding overcharging and over-discharging and extending its service life.

[0070] The preset number of cycles threshold can be 2500, and the preset internal resistance threshold can be 150.

[0071] In an optional embodiment of this application, the control device can also be used to determine whether the power generation data of the solar power supply equipment and the wind power supply equipment meet the first requirement of the core load when the electricity price peak-valley information is at its peak; if it does, and there is still a surplus of power generation after meeting the first requirement, the surplus power can be connected to the grid for sale; at the same time, if the power in the energy storage device meets the conditions, the above operation can also be performed to subsidize the operating costs.

[0072] In an optional embodiment of this application, the control device can also be used to control the energy storage device to respond and adjust within 50ms in the event of fluctuations in the first and second power generation; and to control the STS switch to switch to backup power within 20ms in the event of a risk of interruption of the core load, so as to avoid damage to the device.

[0073] In one optional embodiment of this application, the control device connects to various devices via the EC 61850 protocol, embeds a Kalman filter module to eliminate radiated interference data, and ensures that the command accuracy is ≥99.9%.

[0074] In an optional embodiment of this application, the control device can generate an optimal power supply plan based on the MIP-MPC hybrid algorithm, with the goals of "power supply reliability ≥ 99.99%, lowest annual cost, and annual carbon reduction ≥ 1000 tons".

[0075] In an exemplary embodiment, the cost analysis process and results of the power supply system for the cryogenic heating reactor provided in this application are as follows:

[0076] Wind power supply equipment: Equipment and installation cost 2,500 yuan / kW, 5MW cost 12.5 million yuan; other costs (foundation, substation, etc.) 6 million yuan, total cost 18.5 million yuan.

[0077] Solar power equipment: 5MW installed capacity, unit price 3.5 yuan / W, total cost 17.5 million yuan; site area approximately 30,000 square meters.

[0078] Energy storage equipment: Conventional lithium iron phosphate batteries (38.5MW): RMB 0.45-0.50 / Wh, cost RMB 17.325-19.25 million; Second-generation lithium iron phosphate batteries (16.5MW): RMB 0.27-0.30 / Wh (40% lower than new batteries), cost RMB 4.455-4.95 million; Total cost RMB 21.78-24.2 million (18%-20% lower than conventional energy storage).

[0079] Operating costs:

[0080] Solar power equipment: routine maintenance costs are 0.015-0.03 yuan / watt / year, and the annual cost for 5MW is 75,000-150,000 yuan; the electricity consumption of snow removal belts in the north increases by 20,000-30,000 yuan / year, and the replacement of dustproof film in the northwest increases by 10,000-20,000 yuan / year.

[0081] Wind power supply equipment: Operation and maintenance cost 0.04-0.06 yuan / kWh, 5MW annual power generation 10-11 million kWh, annual maintenance cost 400,000-660,000 yuan; Northwest dustproof coating maintenance adds 30,000-50,000 yuan / year.

[0082] Energy storage equipment: Conventional battery maintenance cost is 0.08-0.12 yuan / watt / year (38.5MW annual cost is 308,000-462,000 yuan), and secondary battery maintenance cost is 0.05-0.08 yuan / watt / year (16.5MW annual cost is 82,500-132,000 yuan); annual loss due to charge and discharge efficiency loss is 600,000-650,000 yuan.

[0083] Total operating costs are 1.2 million to 1.5 million yuan, with annual operating costs of 1.25 million to 1.6 million yuan in northern / northwestern scenarios. Electricity expenses can be reduced by approximately 3 million to 3.5 million yuan per year.

[0084] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0085] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A power supply system for a cryogenic heating reactor, characterized in that, The power supply system of the cryogenic heating reactor includes solar power equipment, wind power equipment, energy storage equipment, and control equipment; wherein, the energy storage equipment includes a first energy storage battery and a second energy storage battery, the first energy storage battery being connected to the core load in the cryogenic heating reactor, and the second energy storage battery being connected to the non-core load in the cryogenic heating reactor. The control device is used to acquire power generation data, energy storage data, demand data, and peak and valley electricity price information, and to generate a power supply strategy based on the power generation data, energy storage data, demand data, and peak and valley electricity price information. The power generation data includes the first power generation of the solar power supply equipment and the second power generation of the wind power supply equipment; the energy storage data includes the first energy storage capacity of the first energy storage battery and the second energy storage capacity of the second energy storage battery; and the demand data includes the first demand of the core load and the second demand of the non-core load. The solar power supply equipment, the wind power supply equipment, and the energy storage equipment are used to supply power to the core load and the non-core load based on the power supply strategy.

2. The power supply system according to claim 1, characterized in that, The power supply strategy includes a first power supply strategy and a second power supply strategy; The control device is used to generate a first power supply strategy based on the power generation data, the energy storage data, and the demand data when the electricity price peak-valley information is at its peak. The control device is also used to generate a second power supply strategy based on the power generation data, the energy storage data, and the demand data when the electricity price peak-valley information is at a low point.

3. The power supply system according to claim 2, characterized in that, The control device is used to determine whether the power generation data meets the first requirement when the electricity price peak-valley information is at its peak; if so, the first power supply strategy is to use the solar power supply equipment and the wind power supply equipment to supply power to the core load. The control device is further configured to determine whether the power generation data meets the first requirement when the electricity price peak-valley information is at its peak; if not, determine whether the power generation data and the first power quantity meet the first requirement; if yes, determine that the first power supply strategy is to use the solar power supply equipment, the wind power supply equipment and the first energy storage battery to supply power to the core load. The control device is further configured to determine whether the power generation data meets the first requirement when the electricity price peak-valley information is at its peak; if not, determine whether the power generation data and the first power volume meet the first requirement; if not, determine that the first power supply strategy is to use the solar power supply equipment, the wind power supply equipment, the first energy storage battery and the power grid to supply power to the core load.

4. The power supply system according to claim 3, characterized in that, The control device is further configured to determine whether the second power supply meets the second demand when the electricity price peak-valley information is at its peak; if so, the first power supply strategy is to use the second energy storage battery to supply power to the non-core load. The control device is further configured to determine whether the second power supply meets the second demand when the electricity price peak-valley information is at its peak; if not, determine the remaining power supply after the power generation data meets the first demand based on the power generation data and the first demand, and determine whether the remaining power supply and the second power supply meet the second demand; if so, determine that the first power supply strategy is to use the solar power supply equipment, the wind power supply equipment and the second energy storage battery to supply power to the non-core load.

5. The power supply system according to any one of claims 1 to 4, characterized in that, The power supply system also includes a nuclear-grade grid-connected cabinet; The nuclear-grade grid-connected cabinet is used to provide safety protection for the solar power supply equipment, the wind power supply equipment, the energy storage equipment, the core load, and the non-core load. The safety protections include overcurrent protection, overvoltage protection, undervoltage protection, leakage protection, short circuit protection, overload protection, anti-islanding protection, battery protection, fault isolation protection, and radiation power supply linkage protection.

6. The power supply system according to any one of claims 1 to 4, characterized in that, The control device is also used to acquire meteorological data and determine the first predicted power generation of the solar power supply device and the second predicted power generation of the wind power supply device based on the meteorological data.

7. The power supply system according to any one of claims 1 to 4, characterized in that, The solar power supply equipment includes a tracking bracket; The control device is used to determine the angle adjustment strategy of the tracking bracket based on the maximum power point tracking algorithm. The angle adjustment strategy is used to adjust the angle of the tracking bracket.

8. The power supply system according to any one of claims 1 to 4, characterized in that, The control device is used to acquire the current wind speed and determine the rotational speed optimization strategy based on the current wind speed using the maximum power point tracking algorithm. The speed optimization strategy is used to adjust the speed of the blades of the wind power supply equipment.

9. The power supply system according to any one of claims 1 to 4, characterized in that, The power supply system also includes a diesel generator; The diesel generator is used to supply power to the core load when the sum of the first power generation and the second power generation is less than a preset power generation threshold, and the sum of the first power and the second power is less than a preset power threshold.

10. The power supply system according to any one of claims 1 to 4, characterized in that, The control device is also used to detect the number of cycles and internal resistance of the energy storage device, and to determine the health status information of the energy storage device based on the number of cycles and internal resistance.

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