Solar energy and air energy high-capacity long-period energy storage peak regulation power station system engineering

Abstract

The invention discloses solar energy and air energy high-capacity long-period energy storage peak shaving power station system engineering, and belongs to the technical field of new energy comprehensive utilization. The system integrates a photovoltaic power generation module, an air source heat pump and water source heat pump cascade heat collection module, a giant buried vacuum heat preservation energy storage library module, a modern agricultural planting module, an intelligent centralized control module and the like, and a multi-energy complementary and intelligent regulation comprehensive energy system is constructed. Cross-seasonal heat storage is achieved through the underground energy storage bank, and heat loss is reduced by combining vacuum heat preservation and natural layering design. The photovoltaic power preferentially drives the heat pump to realize self-generation and self-use and off-grid power supply; heating in winter and cooling in summer are cooperatively operated, and refrigeration waste heat is recycled; an organic vegetable garden is built on the top of the energy storage warehouse, and three purposes are achieved in one land. The problems of photovoltaic power generation volatility, low air source heat pump low-temperature efficiency, high heating carbon emission and the like are effectively solved, the energy utilization efficiency is improved, the energy storage cost is reduced, green and low-carbon transformation of an energy structure is assisted, and a Chinese scheme is provided for global energy sustainable development.

Description

Technical Field

[0001] The present invention belongs to the technical field of comprehensive utilization of new energy, and specifically relates to a solar air energy large-capacity long-cycle energy storage peak-shaving power station system project, especially a multi-energy complementary comprehensive energy system project integrating photovoltaic power generation, coordinated heating and cooling of air source heat pumps and water source heat pumps, construction of giant underground vacuum insulation energy storage reservoirs, intelligent energy scheduling and control, and modern agricultural planting. Background Art

[0002] To achieve efficient utilization of renewable energy and flexible regulation of energy systems, it is urgent to develop a technical solution that can achieve long-term, large-capacity, and low-cost energy storage to solve the following key problems: 1. How to effectively mitigate the volatility of photovoltaic power generation and improve its local consumption rate and peak-shaving capacity.

[0003] 2. How to overcome the operating limitations of air source heat pumps in low-temperature environments and improve their average energy efficiency throughout the year.

[0004] 3. How to build a comprehensive energy system with cross-seasonal energy storage capabilities to achieve "summer storage for winter use + winter storage for summer use" of clean energy.

[0005] 4. How to achieve integrated and coordinated operation of heating, cooling, agricultural planting and power generation functions through multi-energy complementarity and intelligent scheduling.

[0006] 5. How to reduce the construction and operation and maintenance costs of energy storage systems to make them economically feasible for large-scale promotion and application.

[0007] To address these issues, scholars both domestically and internationally have conducted extensive research on thermal energy storage technology in recent years. As a physical energy storage method, hot water energy storage offers advantages such as moderate energy density, low cost, and high safety, making it particularly suitable for regional centralized energy supply scenarios. However, existing hot water energy storage systems generally lack efficient insulation structural design and tiered management mechanisms, resulting in significant heat loss and low system efficiency, making them difficult to meet the needs of long-term, large-capacity energy storage.

[0008] Therefore, there is an urgent need to develop a new type of comprehensive energy system that integrates photovoltaic power generation, coordinated operation of air energy and water source heat pumps, underground vacuum insulation energy storage, intelligent centralized control system and modern agricultural planting. It has important practical significance and broad application prospects for promoting clean energy to replace traditional fossil energy and achieve low-carbon transformation. Summary of the Invention

[0009] In response to the above problems, the present invention proposes a solar air energy large-capacity long-cycle energy storage peak-shaving power station system project; this system project integrates multiple mutually coordinated engineering modules such as solar photovoltaic power generation system, air source heat pump and water source heat pump cascade collection system, giant underground vacuum insulation energy storage system and modern agricultural planting system, to construct a comprehensive energy system with cross-seasonal energy storage capacity, multi-energy complementarity and intelligent regulation.

[0010] This solar-air-energy, high-capacity, long-cycle energy storage peak-shaving power station system project utilizes innovative new energy storage technologies to replace traditional coal-fired heating, fully transitioning to a clean heating model based on renewable energy sources such as solar energy and air energy. Through the system's integrated design and efficient operation, it significantly improves the overall utilization efficiency and sustainable development of new energy sources. It also enhances the operational efficiency of the energy storage system, reduces storage costs, and creates a more intelligent, efficient, and sustainable new energy storage system project, helping to optimize the regional energy structure and achieve a green and low-carbon transition.

[0011] The technical solution adopted in the present invention is: A solar-air-energy, large-capacity, long-cycle energy storage and peak-shaving power station system project, including a solar photovoltaic power generation system, a cascaded heat collection system of air-source heat pumps and water-source heat pumps, a giant underground vacuum insulation energy storage system, and a modern agricultural planting system; The giant underground vacuum insulation energy storage system includes a giant underground vacuum insulation energy storage, which is buried underground. The giant underground vacuum insulation energy storage adopts a steel-concrete storage wall with a vacuum insulation structure, and stores a liquid heat storage medium inside. In addition, a water pipeline assembly connected to a cascade heat collection system of an air source heat pump and a water source heat pump, a residential heating system, and a residential cooling system is provided in the giant underground vacuum insulation energy storage; The modern agricultural planting system includes an organic vegetable botanical garden located above the ground of a giant underground vacuum insulation energy storage reservoir. The organic vegetable botanical garden is a greenhouse structure built on a steel-concrete cover using a standard steel frame and solar photovoltaic modules. The solar photovoltaic power generation system includes solar photovoltaic modules built on the walls and roof of the organic vegetable botanical garden. The solar photovoltaic modules are connected to the AC combiner cabinet through a grid-connected inverter. The AC combiner cabinet and the mains power grid are connected to the distribution cabinet through a bidirectional smart meter. The distribution cabinet supplies power to the cascade heat collection system of air source heat pump and water source heat pump, the giant underground vacuum insulation energy storage system, and the modern agricultural planting system. The distribution cabinet is remotely controlled by the intelligent centralized control center. The air source heat pump and water source heat pump cascade thermal collection system includes an air source heat pump system and a water source heat pump system built based on a giant underground vacuum insulation energy storage reservoir and an organic vegetable botanical garden. The air source heat pump system and the water source heat pump system are respectively connected to the water pipeline components of the giant underground vacuum insulation energy storage reservoir system, and are also connected to the solar photovoltaic power generation system and the power grid, and are remotely controlled by the intelligent centralized control center.

[0012] Furthermore, the intelligent centralized control center uses an energy management system (EMS) based on AI algorithms, combining multi-dimensional data such as meteorological forecast models, load demand curves, and electricity price fluctuation curves to dynamically optimize the scheduling of the entire energy storage peak-shaving power station system. The intelligent centralized control center formulates a power generation plan for the photovoltaic modules based on the daily solar radiation intensity forecast. The grid-connected inverter converts the DC power into AC power, which is then preferentially supplied to the air-source heat pump system, the water-source heat pump system, and the electrical equipment in the organic vegetable garden. When photovoltaic power generation is insufficient, it automatically switches to the mains power grid for power supply, and supplies power during off-peak hours at night to ensure continuous operation of the system.

[0013] Furthermore, the interior of the giant underground vacuum insulation energy storage reservoir is provided with an upper heat storage area, a middle heat storage area and a caisson heat storage area which are interconnected from top to bottom, and the upper heat storage area, the middle heat storage area and the caisson heat storage area respectively store liquid heat storage media of different temperatures; The upper heat storage area is composed of a steel-concrete cover plate, a steel-concrete storage wall A with an embedded vacuum insulation layer, and a steel-concrete expanded clay bottom plate; the middle heat storage area is composed of a steel-concrete expanded clay bottom plate, a steel-concrete storage wall B with an embedded vacuum insulation layer, and a steel-concrete bottom plate; the caisson heat storage area is composed of a steel-concrete bottom plate, a caisson steel-concrete wall with an embedded caisson vacuum insulation layer, and a caisson steel-concrete bottom plate.

[0014] Furthermore, before the heating season, the intelligent centralized control center remotely controls the water source heat pump system and the air source heat pump system to operate in cascade mode to increase the temperature of the heat storage medium. When the heating season is about to end, the intelligent centralized control center remotely controls the water source heat pump system to reversely absorb heat and cool the heat storage medium. During the heating process, the high-temperature heat storage medium flows upward and the low-temperature heat storage medium flows downward, so that the upper heat storage area stores 60-80℃ high-temperature medium, the middle heat storage area stores 40-60℃ medium-temperature medium, and the caisson heat storage area stores 7-40℃ low-temperature medium; The heating season is about to end. The heat storage medium absorbs heat and cools down through the water source heat pump system. The caisson heat storage area stores 7°C low-temperature medium. The cooling system in the hot summer and cold winter areas extracts the low-temperature medium in the caisson heat storage area for cooling, and the waste heat from cooling is returned to the upper heat storage area for storage.

[0015] Furthermore, an energy storage retaining wall is provided inside the giant underground vacuum insulated energy storage body. Both sides of the energy storage retaining wall are connected to the steel-concrete wall A, the steel-concrete expanded clay bottom plate and the steel-concrete wall B. The energy storage retaining wall divides the interior of the body into a high-grade heating tank with a smaller storage capacity and an energy storage tank with a larger storage capacity; the upper part of the heating tank is connected to the upper heat storage area of ​​the energy storage tank, and the lower part of the heating tank is connected to the middle heat storage area of ​​the energy storage tank.

[0016] Furthermore, the water pipeline assemblies of the upper heat storage area, the middle heat storage area and the caisson heat storage area are respectively arranged at three levels, and each group of water pipeline assemblies includes several groups of water pipelines and several groups of return water pipelines; The water supply pipeline connected to the air source heat pump system extends to the bottom of the caisson heat storage area of ​​the energy storage reservoir, and the return water pipeline connected to the air source heat pump system extends to the middle heat storage area of ​​the energy storage reservoir; The water supply pipeline connected to the cooling system extends to the bottom of the caisson heat storage area of ​​the energy storage reservoir, and the return water pipeline connected to the cooling system extends to the upper heat storage area of ​​the energy storage reservoir; The water supply pipeline connected to the water source heat pump system extends to the middle heat storage area of ​​the energy storage reservoir, and the return water pipeline connected to the water source heat pump system extends to the upper heat storage area of ​​the energy storage reservoir; The water supply pipeline connected to the heating system extends to the upper heat storage area of ​​the heating reservoir, and the return water pipeline connected to the heating system extends to the middle heat storage area of ​​the energy storage reservoir; Water distributors are installed at the ends of each water supply pipeline and return pipeline to evenly distribute the flow rate of the heat storage medium and reduce disturbances.

[0017] Furthermore, during the heating season, the intelligent centralized control center remotely controls the heating system, water source heat pump system, and air source heat pump system to operate simultaneously; When the heating system is running, the water pipeline connected to the heating system draws the high-temperature medium from the top of the heating reservoir, and at the same time, the high-temperature medium in the heat storage area above the energy storage reservoir is automatically replenished to the heating reservoir; When the water source heat pump system is in operation, the water supply pipeline connected to the water source heat pump system draws the medium-temperature medium from the heat storage area in the middle of the energy storage reservoir, while the medium-temperature medium at the bottom of the heating reservoir flows back to the energy storage reservoir.

[0018] Furthermore, the steel-concrete expanded clay bottom plate is set at a 45° inclination angle; the bottom of the caisson steel-concrete wall is provided with a caisson blade foot; a steel-concrete support is installed on the steel-concrete warehouse wall A, and the steel-concrete cover plate is fixedly installed on the top of the steel-concrete warehouse wall A through the steel-concrete support.

[0019] Furthermore, the vertical cross-section of the giant underground vacuum insulation energy storage tank is square, rectangular, trapezoidal or circular.

[0020] Furthermore, in winter, the organic vegetable botanical garden creates a greenhouse effect by transferring heat from the back of the photovoltaic modules to the organic soil through heat dissipation from the steel-concrete cover of the giant underground vacuum insulation energy storage tank. At the same time, the intelligent centralized control center remotely controls the air source heat pump system to assist in heating the air in the organic vegetable botanical garden and maintain a constant temperature. In the summer, the temperature inside the organic vegetable botanical garden is relatively high. The intelligent centralized control center remotely controls the air source heat pump system, which draws the heat energy generated inside the organic vegetable botanical garden and stores it in a giant underground vacuum insulation energy storage tank. The air source heat pump system blows air to the top of the garden, reducing the back temperature of the photovoltaic panels and increasing power generation. The intelligent centralized control center accurately controls and maintains a constant temperature in the organic vegetable botanical garden.

[0021] The beneficial effects of the present invention are: The proposed solar-air-energy, large-capacity, long-cycle energy storage and peak-shaving power station system project integrates multiple functional engineering modules, including photovoltaic power generation, cascaded air-source heat pumps and water-source heat pumps, a large underground vacuum-insulated energy storage reservoir, modern agricultural planting, and intelligent energy scheduling, to create a comprehensive energy system with multi-energy complementarity, efficient collaboration, and intelligent regulation. This system has significant technical advantages and application value in improving the efficiency of new energy utilization, achieving cross-seasonal clean energy storage, and promoting the transition to low-carbon heating. This is specifically reflected in the following aspects: 1. Realize closed-loop energy utilization and improve overall system energy efficiency. Cascade heat pump + natural stratification design ensures efficient and stable operation throughout the year; 2. Build a cross-seasonal energy storage system to achieve a two-way recycling of clean energy for heating and cooling; 3. A three-use integrated development model significantly improves land resource utilization; 4. Intelligent centralized control platform supports remote dispatch and refined energy management; 5. Low-cost physical energy storage path to promote the large-scale application of the system; 6. Clean alternative to coal-fired heating to help the green and low-carbon transformation of the energy structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] To more clearly illustrate the embodiments of the present invention or the technical solutions in 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 only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0023] Figure 1 This is a block diagram of the solar-air energy large-capacity, long-cycle energy storage and peak-shaving power station system project of the present invention; Figure 2 It is a side sectional schematic diagram of the giant underground vacuum thermal insulation energy storage structure of the present invention; Figure 3 It is a top cross-sectional schematic diagram of the giant underground vacuum thermal insulation energy storage structure of the present invention; Figure 4 Schematic diagram of the principle of the dynamic circulation mechanism of the present invention; Figure 5 A schematic diagram of the natural circulation flow pattern of the energy storage retaining wall provided in the present invention; In the figure, 1-upper heat storage area, 2-middle heat storage area, 3-caisson heat storage area, 4-steel-concrete cover, 5-steel-concrete storage wall A, 6-steel-concrete ceramsite bottom plate, 7-steel-concrete storage wall B, 8-steel-concrete bottom plate, 9-caisson steel-concrete wall, 10-caisson steel-concrete bottom plate, 11-energy storage retaining wall, 12-heating storage, 13-energy storage, 14-water pipeline connected to air source heat pump system, 15-return pipeline connected to air source heat pump system, 16-water pipeline connected to water source heat pump system, 17-water pipeline connected to water source heat pump system Return water pipeline connected to the heat pump system, 18 – water supply pipeline connected to the heating system, 19 – return water pipeline connected to the heating system, 20 – water supply pipeline connected to the cooling system, 21 – return water pipeline connected to the cooling system, 22 – water distributor, 23 – vacuum insulation layer A, 24 – vacuum insulation layer B, 25 – caisson vacuum insulation layer, 26 – vacuum pipe, 27 – caisson blade foot, 28 – steel-concrete support, 29 – organic vegetable botanical garden, 30 – standard steel frame, 31 – solar photovoltaic module. DETAILED DESCRIPTION

[0024] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Aiming at the problems in existing renewable energy systems such as large fluctuations in photovoltaic power generation, low efficiency of air source heat pumps at low temperatures, small capacity and high cost of energy storage systems, and single energy utilization methods, this embodiment provides a solar air energy large-capacity long-cycle energy storage peak-shaving power station system project, such as Figure 1 As shown in the figure, the system integrates multiple mutually coordinated engineering modules, including solar photovoltaic power generation system, air source heat pump and water source heat pump cascade collection system, giant underground vacuum insulation energy storage system and modern agricultural planting system, to build a comprehensive energy system with cross-seasonal energy storage capacity, multi-energy complementarity and intelligent regulation, so as to achieve efficient, stable and low-cost utilization of clean energy.

[0026] The following is a detailed description of the subsystems of the solar air energy large-capacity long-cycle energy storage peak-shaving power station system project: Giant underground vacuum insulation energy storage system: The giant underground vacuum insulation energy storage system is the core engineering module of the solar air energy large-capacity long-cycle energy storage peak-shaving power station system project to achieve efficient energy storage and recycling. Its function is to realize cross-seasonal energy storage and meet the energy regulation needs of "summer storage and winter use + winter storage and summer use"; through the vacuum insulation layer structure, the heat loss rate is greatly reduced, the long-term stable storage of the heat storage medium is guaranteed, and an energy closed loop integrating the whole process of "storage-supply-regulation" is constructed, which significantly improves the overall energy utilization efficiency.

[0027] Specifically, such as Figure 1 、 Figure 2 and Figure 3 As shown, the giant underground vacuum-insulated energy storage system includes a giant underground vacuum-insulated energy storage reservoir. The reservoir consists of an upper heat storage area 1, a middle heat storage area 2, and a caisson heat storage area 3, interconnected from top to bottom. Each of these areas stores liquid heat storage media at different temperatures. The upper heat storage area 1 is enclosed by a steel-concrete cover plate 4, a steel-concrete wall A5 with a vacuum insulation structure, and a steel-concrete ceramsite floor 6. The steel-concrete wall A5 is constructed of reinforced concrete and embedded with a vacuum insulation layer A23. A vacuum evacuation pipe 26 is installed on the wall A5, communicating with the vacuum insulation layer A23 to maintain the vacuum level. Steel-concrete supports 28 are installed on the wall A5, and the steel-concrete cover plate 4 is fixed to the top of the wall A5 via these supports. The steel-concrete ceramsite floor 6 is a reinforced concrete structure with a 45° inclination. It is embedded with ceramsite material to enhance the floor's thermal insulation performance. The 45° inclination eliminates dead spots in the central heat storage area 2. The central heat storage area 2 is enclosed by the steel-concrete ceramsite floor 6, the steel-concrete storage wall B7 with a vacuum insulation structure, and the steel-concrete floor 8. The steel-concrete storage wall B7 and the steel-concrete floor 8 are reinforced concrete structures. The steel-concrete storage wall B7 is embedded with a vacuum insulation layer B24. A vacuum evacuation pipe 26 is also installed on the steel-concrete storage wall B7, connecting to the vacuum insulation layer B24 to maintain the vacuum level. The caisson heat storage area 3 is enclosed by the steel-concrete floor 8, the caisson steel-concrete storage wall 9 with a vacuum insulation structure, and the caisson steel-concrete floor 10. The caisson steel-concrete wall 9 and the caisson steel-concrete bottom plate 10 are constructed of reinforced concrete. A vacuum insulation layer 25 is embedded within the caisson steel-concrete wall 9. A vacuum pumping pipe 26 is provided on the caisson steel-concrete wall 9, communicating with the vacuum insulation layer 25 to maintain a vacuum level. Caisson blades 27 are provided at the bottom of the caisson steel-concrete wall 9 and are constructed of high-strength reinforced concrete.

[0028] like Figure 1 and Figure 2As shown, in this embodiment, the upper heat storage area 1 and the middle heat storage area 2 adopt a regular trapezoidal structure; the top of the upper heat storage area 1 is sealed at the surface by a steel-concrete cover plate 4, and the bottom is connected to the middle heat storage area 2. The caisson heat storage area 3 below the middle heat storage area 2 is a circular caisson structure, and the bottom of the middle heat storage area 2 is connected to the caisson heat storage area 3. Caisson blades 27 are circumferentially arranged at the bottom of the caisson heat storage area 3. The excavation and cutting of soil is carried out by the deadweight of the caisson steel-concrete wall 9 and is sunk to the caisson steel-concrete bottom plate 10, thus completely enclosing the giant underground vacuum insulation energy storage reservoir. Of course, the giant underground vacuum insulation energy storage reservoir can also be designed with other shapes such as square, rectangular, trapezoidal, circular, etc. in vertical cross-section, depending on the actual engineering and geological conditions.

[0029] Further, such as Figure 2 As shown, the giant underground vacuum insulated energy storage tank in this embodiment is also equipped with an energy storage tank retaining wall 11. The two sides of the energy storage tank retaining wall 11 are connected to the steel-concrete tank wall A5, the steel-concrete ceramsite bottom plate 6, and the steel-concrete tank wall B7. The energy storage tank retaining wall 11 divides the interior of the tank into a heating tank 12 and an energy storage tank 13. The storage capacity ratio of the heating tank 12 and the energy storage tank 13 is: the heating tank 12 accounts for 30% of the total storage capacity, and the energy storage tank 13 accounts for 70% of the total storage capacity. The upper part of the heating tank 12 is connected to the upper heat storage area 1 of the energy storage tank 13, and the lower part of the heating tank 12 is connected to the middle heat storage area 2 of the energy storage tank 13.

[0030] The above description of the giant underground vacuum insulated energy storage tank structure shows that this giant underground vacuum insulated energy storage tank is equipped with an insulation structure of steel-concrete walls and a steel-concrete ceramsite floor. In combination with a vacuum system that uses vacuum pipes 26 to control the vacuum level of each vacuum insulation layer in real time, and the 45° inclination of the steel-concrete ceramsite floor 6 to eliminate water flow dead spots, this giant underground vacuum insulated energy storage tank can achieve a lower annual average heat loss rate and be more energy-efficient compared to traditional thermal storage tanks and water storage tanks. In addition, because this giant underground vacuum insulated energy storage tank uses a steel-concrete structure with an embedded vacuum insulation layer, its body life is longer, its corrosion resistance is better, and its maintenance costs are lower than those of traditional thermal storage tanks and water storage tanks.

[0031] Modern agricultural planting system: Taking a giant underground vacuum insulation energy storage reservoir with a single storage capacity of 1 million cubic meters as an example, its overall dimensions are 200 meters long × 200 meters wide × 40 meters high. Since the main structure of the giant underground vacuum insulation energy storage reservoir is buried underground, there is about 60 acres of available land above the ground. In order to improve the comprehensive utilization efficiency of land, this embodiment sets up an organic vegetable botanical garden above the steel-concrete cover of the energy storage reservoir. Figure 2As shown, the organic vegetable garden 29 is supported by a standard steel frame 30 and integrated with solar photovoltaic panels 31 to create a three-dimensional greenhouse system. The greenhouse roof and south facade are paved with monocrystalline solar photovoltaic panels, while the east and west sides utilize low-light solar photovoltaic panels as the wall structure. The north side is enclosed by engineering facilities such as an air-source heat pump system and power distribution equipment, forming a closed, intensive, zero-carbon greenhouse system.

[0032] This design not only realizes the organic combination of agricultural planting and energy facilities, but also effectively utilizes the waste heat resources on the back of the solar photovoltaic module 31, providing a stable growth environment for the botanical garden and significantly improving land utilization and energy utilization efficiency.

[0033] Air source heat pump and water source heat pump cascade heat collection system: Since the above-mentioned giant underground vacuum insulation energy storage system does not have the ability to heat the heat storage medium, it needs to be used in conjunction with an air source heat pump and a water source heat pump cascade heat collection system. The air source heat pump and water source heat pump cascade heat collection system in this embodiment includes an air source heat pump system and a water source heat pump system. At the same time, Figure 2 As shown, the giant underground vacuum insulated energy storage reservoir is also equipped with a layered water pipeline distribution system to cooperate with the air source heat pump system and the water source heat pump system to achieve heating and cooling functions.

[0034] The layered water pipeline distribution system includes water pipeline assemblies extending to the upper heat storage area 1, the middle heat storage area 2, and the caisson heat storage area 3. The water pipeline assemblies for the upper heat storage area 1, the middle heat storage area 2, and the caisson heat storage area 3 are respectively arranged at three horizontal heights, and each set of water pipeline assemblies includes several sets of water pipelines and several sets of return water pipelines. Specifically, the water pipeline 18 connected to the heating system extends to the upper heat storage area of ​​the heating reservoir 12, and the return water pipeline 19 connected to the heating system extends to the middle heat storage area 2 of the energy storage reservoir 13; the water pipeline 18 connected to the heating system and the return water pipeline 19 connected to the heating system pass through the reservoir body and connect to the heating system. The water pipeline 16 connected to the water source heat pump system extends to the middle heat storage area 2 of the energy storage reservoir 13, and the return water pipeline 17 connected to the water source heat pump system extends to the upper heat storage area 1 of the energy storage reservoir 13. The water supply pipeline 14 connected to the air-source heat pump system extends to the bottom of the caisson heat storage area 3 of the energy storage reservoir 13; the return water pipeline 15 connected to the air-source heat pump system extends to the middle heat storage area 2 of the energy storage reservoir 13. The water supply pipeline 20 connected to the cooling system extends to the bottom of the caisson heat storage area 3 of the energy storage reservoir 13; the return water pipeline 21 connected to the cooling system extends to the upper heat storage area 1 of the energy storage reservoir 13. The water supply pipeline 20 and the return water pipeline 21 connected to the cooling system pass through the reservoir body and connect to the cooling system. Water distributors 22 are installed at the ends of each water supply pipeline and return water pipeline to evenly distribute the flow rate of the heat storage medium and reduce disturbances.

[0035] Solar photovoltaic power generation system: Furthermore, considering the power supply issues for the organic vegetable garden 29, as well as the air-source heat pump system and the water-source heat pump system, this implementation also includes a solar photovoltaic power generation system. To further improve the comprehensive land utilization efficiency, the solar photovoltaic power generation system includes the aforementioned low-light solar photovoltaic modules and top-mounted monocrystalline solar photovoltaic modules, built on the walls of the organic vegetable garden 29. The solar photovoltaic modules 31 are connected to the AC combiner via a grid-connected inverter. The AC combiner and the mains power grid are connected to the distribution cabinet via a bidirectional smart meter. The distribution cabinet supplies power to the cascaded air-source heat pump and water-source heat pump thermal collection system, the giant underground vacuum insulation energy storage system, and the modern agricultural planting system. The total installed solar capacity is 8.7 MWP, with an average annual power generation of approximately 10.137 million kWh.

[0036] In addition, considering the remote control of solar photovoltaic power generation systems, air source heat pump and water source heat pump cascade collection systems, giant underground vacuum insulation energy storage systems, and modern agricultural planting systems, such as Figure 1As shown, this embodiment also includes an intelligent centralized control center that is remotely connected to the power distribution cabinet of the solar photovoltaic power generation system, the air source heat pump system of the cascaded air source heat pump and water source heat pump system, and the water source heat pump system via the internet. The intelligent centralized control center consists of several computers that utilize an energy management system (EMS) based on AI algorithms. This system combines multi-dimensional data such as meteorological forecast models, load demand curves, and electricity price fluctuation curves to dynamically optimize the scheduling of the entire solar and air energy large-capacity, long-cycle energy storage peak-shaving power station system.

[0037] The intelligent centralized control center formulates power generation and grid disconnection plans for the photovoltaic modules based on daily solar radiation intensity forecasts. The grid-connected inverter converts DC power into AC power, which is preferentially supplied to the air-source heat pump system, water-source heat pump system, and 29 electrical appliances in the organic vegetable garden. Any remaining power is used to charge a small energy storage system. If photovoltaic power generation is insufficient, the system automatically switches to the utility grid to ensure continuous operation.

[0038] The interrelationships between the subsystems of the solar air energy large-capacity long-cycle energy storage peak-shaving power station system project are as follows: The giant underground vacuum-insulated energy storage system, combined with a cascaded heat collection system of air-source heat pumps and water-source heat pumps, achieves a dynamic circulation mechanism for the stratified distribution system. This dynamic circulation mechanism involves the coordinated action of multiple water pipelines at three levels and water distributors 22, enabling the giant underground vacuum-insulated energy storage system to achieve natural stratification and efficient circulation of the heat storage medium. For example, the liquid heat storage medium is low-cost, technologically mature water. Water pipeline 16, connected to the water-source heat pump system, pumps water from the central heat storage area 2 and heats it to 60–80°C. The water is then returned to the upper heat storage area 1 via return pipeline 17, also connected to the water-source heat pump system. Water pipeline 14, connected to the air-source heat pump system, pumps water from the caisson area and heats it to 40–60°C. The water is then returned to the central heat storage area 2 via return pipeline 15, also connected to the air-source heat pump system.

[0039] In addition, if Figure 4 As shown by the middle arrow, since high-temperature water has a lower density and low-temperature water has a higher density, this density difference will trigger a buoyancy effect, causing the high-temperature water to naturally float up due to its low density and the low-temperature water to naturally sink due to its high density, forming the first form of natural circulation flow; thus, the upper heat storage area 1 stores 60-80℃ high-temperature medium, the middle heat storage area 2 stores 40-60℃ medium-temperature medium, and the caisson heat storage area 3 stores 7-40℃ low-temperature medium.

[0040] The giant underground vacuum-insulated energy storage reservoir avoids heat retention and dead zones through temperature zoning, a 45°-angled steel-concrete ceramsite floor (6), and a water distributor (22). This maximizes natural convection, achieving efficient stratification and stable circulation of the heat storage medium, addressing the high energy consumption and low stratification efficiency issues of traditional technologies. Furthermore, a cascaded heat collection system of air-source and water-source heat pumps, based on the structure of the giant underground vacuum-insulated energy storage reservoir, addresses the issue of poor heat pump efficiency. This passive circulation mechanism, generated by density differences, not only saves energy and reduces consumption but also significantly improves the stability and cost-effectiveness of energy supply across seasons.

[0041] Furthermore, in order to ensure a stable supply of high-temperature medium during the heating season, Figure 5 As indicated by the middle arrow, the energy storage retaining wall 11 within this giant underground vacuum-insulated energy storage reservoir plays a key role. During the heating season, the heating system, water-source heat pump system, and air-source heat pump system operate simultaneously. A water pipeline 18 connected to the heating system cooperates with the heating system to pump high-temperature water (60–80°C) from the top of the heating reservoir 12 for heating. Simultaneously, high-temperature medium from the upper heat storage area 1 of the energy storage reservoir 13 is automatically replenished to the heating reservoir 12. Simultaneously, a water pipeline 16 connected to the water-source heat pump system cooperates with the water-source heat pump system to pump medium-temperature water (40–60°C) from the central heat storage area 2 of the energy storage reservoir 13. This returns the medium-temperature medium from the bottom of the heating reservoir 12 to the energy storage reservoir 13, thus forming a second natural circulation flow pattern, ensuring a stable supply of high-temperature medium and return water replenishment during the heating season.

[0042] Dual-storage Mode: Before the heating season, a massive underground vacuum-insulated energy storage reservoir operates a cascade of water-source and air-source heat pump systems, raising the temperature of the thermal storage medium from 7°C to 80°C. During the heating season, the heating system, water-source heat pump system, and air-source heat pump system operate simultaneously to ensure a stable supply of high-temperature medium.

[0043] As the heating season draws to a close, water pipeline 16 connected to the water-source heat pump system extracts the thermal storage medium, while the system reverses, cooling the thermal storage medium from 80°C to 7°C. At this point, water pipeline 20 connected to the cooling system cooperates with the cooling system to extract the low-temperature thermal storage medium from the caisson thermal storage area, providing summer cooling in hot-summer, cold-winter regions. The cooling thermal storage medium is then returned to the upper thermal storage area 1 via return water pipeline 21 connected to the cooling system. After absorbing heat, the low-temperature thermal storage medium naturally rises due to a change in density, thereby recovering waste heat from the cooling cycle and storing it for year-round use.

[0044] The cascaded heat collection system of air-source heat pumps and water-source heat pumps is the core engineering module for the large-capacity, long-cycle solar air energy peak-shaving power station system project, achieving efficient thermal energy enhancement and stable energy supply throughout the year. Due to the use of an intelligent centralized control center to remotely control the coordinated operation of the air-source heat pump system and the water-source heat pump system, the overall system energy efficiency ratio (COP) can be increased by more than 50% through the cascade operation mode of the two-stage heat pump, significantly improving energy utilization efficiency. The giant underground vacuum insulation energy storage system and the cascaded heat collection system of air-source heat pumps and water-source heat pumps, in conjunction with remote control by the intelligent centralized control center, can not only provide a stable heat source for the heating system in winter, but also cooperate with the cooling system in summer. It has efficient, stable, and energy-saving operation characteristics throughout the year, and is a key technical support for the efficient conversion of clean energy.

[0045] The modern agricultural planting system is the core engineering module of the solar-air-energy, large-capacity, long-cycle energy storage and peak-shaving power station system project, achieving multifunctional integration and efficient land utilization. In winter, Organic Vegetable Garden 29 creates a greenhouse effect through heat dissipation from the back of the photovoltaic panels combined with heat transfer from the giant underground vacuum-insulated energy storage reservoir to the organic soil. Simultaneously, the intelligent centralized control center, using temperature and humidity monitoring devices installed within the organic vegetable garden, remotely controls the air-source heat pump system to supplement heating within the organic vegetable garden, maintaining a constant temperature. In summer, when temperatures rise within the organic vegetable garden, the intelligent centralized control center remotely controls the air-source heat pump system, which draws heat generated within the organic vegetable garden and stores it in the giant underground vacuum-insulated energy storage reservoir. The air-source heat pump system then blows air upwards to the garden's ceiling, reducing the back temperature of the solar photovoltaic panels 31 and increasing power generation. The intelligent centralized control center precisely maintains a constant temperature within the organic vegetable garden.

[0046] During winter operation, the modern agricultural planting system creates a stable greenhouse effect through the synergistic effect of heat dissipation from the photovoltaic module backplane and heat conduction from the underground energy storage reservoir, providing a suitable temperature environment for crop growth. During summer operation, the system uses an air-source heat pump system to absorb heat and cool the top, and combined with ventilation measures to effectively reduce the temperature on the back of the photovoltaic modules, avoiding the adverse effects of high temperature on plant growth, while ensuring the stable operation efficiency of the photovoltaic power generation system. The entire planting process does not require additional heating or cooling energy input, achieving a true zero-carbon greenhouse planting model and effectively promoting the development of green agriculture. In addition, the solar air energy large-capacity long-cycle energy storage peak-shaving power station system project significantly improves the comprehensive utilization efficiency of land through the three-dimensional layout of underground energy storage, ground agriculture, and aerial power generation, creating a new model of complex development with three uses in one place, with good ecological and economic benefits.

[0047] The solar photovoltaic power generation system is the core engineering module of the solar-air-energy, large-capacity, long-cycle energy storage and peak-shaving power station system project, enabling the on-site production and efficient utilization of clean energy. The solar photovoltaic power generation system converts solar radiation into electricity through photovoltaic panels. This generated electricity is preferentially supplied to system loads, including the air-source heat pump system, the water-source heat pump system, and the electrical equipment in the organic vegetable garden, thereby improving the efficiency of on-site energy consumption. During periods of sufficient sunlight and surplus power generation, the excess power is used to charge the small energy storage system. When sunlight is insufficient and photovoltaic power generation cannot meet load demand, the intelligent centralized control center remotely controls the power distribution cabinet to automatically switch to utility power, ensuring continuous and stable operation. This "self-generation and self-consumption + off-peak power off-grid" operation mode effectively optimizes energy scheduling strategies, reduces electricity costs, and enhances the economic viability and applicability of the solar-air-energy, large-capacity, long-cycle energy storage and peak-shaving power station system project.

[0048] In summary, the solar air energy large-capacity long-cycle energy storage peak-shaving power station system project proposed in this embodiment, by integrating a solar photovoltaic power generation system, an air source heat pump and water source heat pump cascade heat collection system, a giant underground vacuum insulation energy storage system, and a modern agricultural planting system, has built a comprehensive energy system project with multi-energy complementarity, high efficiency and intelligent regulation. This solar air energy large-capacity long-cycle energy storage peak-shaving power station system project has significant technical advantages and application value in improving the efficiency of new energy utilization, realizing cross-seasonal storage of clean energy, and promoting the transformation to low-carbon heating, which is specifically reflected in the following aspects: 1. Achieve a closed-loop operation of the entire "power generation-heat storage-heat supply-cooling" chain, improving comprehensive energy utilization efficiency: 31 solar photovoltaic panels generate electricity locally, giving priority to the air-source heat pump and water-source heat pump systems. The generated electricity is self-generated and used for its own needs, with excess power used for charging and storage. When insufficient, it is automatically disconnected from the grid to replenish power, forming a flexible energy allocation mechanism. At the same time, the cascaded heat collection system of the air-source heat pump and water-source heat pump operates in conjunction with a giant underground vacuum insulated energy storage system, storing heat sources of different grades in a graded manner. This completes a closed-loop energy flow path from power generation to heating, cooling, and recharging for reuse, significantly improving energy conversion efficiency and the cost-effectiveness (COP) of the giant underground vacuum insulated energy storage system.

[0049] 2. Breaking through the operational limitations of traditional heat pump systems, achieving stable and efficient year-round operation: The air-source heat pump system and the water-source heat pump system utilize a cascade operation mode. The air-source heat pump system is responsible for the initial heating of the heat storage medium, while the water-source heat pump system further heats the heat storage medium, thus avoiding the sudden drop in efficiency of a single heat pump in low-temperature environments. Furthermore, the natural convection stratification structure within the giant underground vacuum-insulated energy storage reservoir ensures a stable water intake temperature for the heating system, significantly improving the operational stability and year-round average energy efficiency of the cascaded air-source heat pump and water-source heat pump system, providing a sustainable and stable clean heating solution for cold regions.

[0050] 3. Build a cross-seasonal energy storage system to achieve "summer storage for winter use + winter storage for summer use" of clean energy: The giant underground vacuum-insulated energy storage reservoir has a large thermal storage capacity. Combined with the vacuum insulation structure and layered water distribution design, it achieves ultra-low energy consumption with an average annual heat loss rate of less than 1%, enabling long-term and stable heat storage. Before the heating season, a cascaded heat collection system of air-source heat pumps and water-source heat pumps gradually elevates the low-temperature thermal storage medium and stores it in the upper heat storage area, which is then used by the heating system during the heating season. When the heating period is about to end, the water-source heat pump system reverses the heat absorption and cools the water, storing it in the caisson heat storage area for summer cooling. At the same time, the waste heat from refrigeration is recovered and stored in the central heat storage area, truly achieving a two-way energy cycle of "summer storage for winter use + winter storage for summer use."

[0051] 4. An innovative, multi-functional land utilization model is employed to improve spatial resource efficiency: a massive underground vacuum-insulated energy storage reservoir, an organic vegetable garden29 on the surface, and a solar photovoltaic power generation system in the air, achieving a three-dimensional, multifunctional utilization of land resources. The greenhouse structure of the organic vegetable garden29 is constructed with a steel-concrete roof and a standard steel frame30. Photovoltaic panels serve as the roof and walls, achieving a zero-carbon greenhouse effect and supporting constant temperature cultivation through backplane heat dissipation in winter. In summer, an air-source heat pump system, combined with overhead ventilation, effectively controls the backside temperature of the solar photovoltaic panels31, ensuring a stable growing environment for the plants and achieving a win-win situation for both increased agricultural production and energy output.

[0052] 5. Build an intelligent centralized control platform to achieve remote, unified dispatch and refined management: The intelligent centralized control center utilizes an AI-based energy management system (EMS) that integrates weather forecast models, load demand curves, electricity price fluctuations, and other multi-dimensional data to achieve dynamic, optimized dispatch of the entire energy storage peak-shaving power station. The intelligent centralized control center is remotely deployed, enabling remote monitoring, fault diagnosis, and equipment startup and shutdown control via mobile communications and other internet-based platforms. This comprehensively improves system operation and maintenance efficiency and responsiveness, supporting participation in electricity market transactions and grid ancillary services.

[0053] 6. Reduced energy storage costs, improving system economics and deployment feasibility: Compared to chemical and compressed air storage methods, this system utilizes physical hot water storage, a mature technology with high safety and a short payback period. Key technologies such as vacuum insulation, natural convection stratified operation, and cascade heat pump heating significantly reduce operating energy consumption and maintenance costs. Furthermore, the "self-generation for self-use + off-grid off-peak" operation model further enhances economic efficiency, ensuring the system has the economic foundation and technical conditions for large-scale deployment.

[0054] 7. Supporting low-carbon transition and promoting green energy transformation: This system project completely replaces coal-fired boilers for heating, achieving zero-carbon emissions during the heating process, reducing reliance on fossil fuels, and promoting a shift toward a cleaner, low-carbon energy structure. Furthermore, through multi-energy complementarity, intelligent scheduling, and closed-loop energy utilization, it builds a new sustainable energy ecosystem, providing a practical technical path and engineering demonstration for achieving low-carbon transition and climate governance.

[0055] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. Solar air energy large capacity long cycle energy storage peaking power station system project, characterized by: Including solar photovoltaic power generation system, air source heat pump and water source heat pump cascade heat collection system, giant underground vacuum insulation energy storage system, and modern agricultural planting system; The giant underground vacuum insulation energy storage system includes a giant underground vacuum insulation energy storage, which is buried underground. The giant underground vacuum insulation energy storage adopts a steel-concrete storage wall with a vacuum insulation structure, and stores a liquid heat storage medium inside. In addition, a water pipeline assembly connected to a cascade heat collection system of an air source heat pump and a water source heat pump, a residential heating system, and a residential cooling system is provided in the giant underground vacuum insulation energy storage; The modern agricultural planting system includes an organic vegetable botanical garden located above the ground of a giant underground vacuum insulation energy storage reservoir. The organic vegetable botanical garden is a greenhouse structure built on a steel-concrete cover using a standard steel frame and solar photovoltaic modules. The solar photovoltaic power generation system includes solar photovoltaic modules built on the walls and roof of the organic vegetable botanical garden. The solar photovoltaic modules are connected to the AC combiner cabinet through a grid-connected inverter. The AC combiner cabinet and the mains power grid are connected to the distribution cabinet through a bidirectional smart meter. The distribution cabinet supplies power to the cascade heat collection system of air source heat pump and water source heat pump, the giant underground vacuum insulation energy storage system, and the modern agricultural planting system. The distribution cabinet is remotely controlled by the intelligent centralized control center. The air source heat pump and water source heat pump cascade thermal collection system includes an air source heat pump system and a water source heat pump system built based on a giant underground vacuum insulation energy storage reservoir and an organic vegetable botanical garden. The air source heat pump system and the water source heat pump system are respectively connected to the water pipeline components of the giant underground vacuum insulation energy storage reservoir system, and are also connected to the solar photovoltaic power generation system and the power grid, and are remotely controlled by the intelligent centralized control center.

2. The solar-air energy large-capacity, long-cycle energy storage and peak-shaving power station system project according to claim 1 is characterized by: The intelligent centralized control center uses an AI-based energy management system (EMS) that combines multi-dimensional data such as meteorological forecast models, load demand curves, and electricity price fluctuation curves to dynamically optimize the scheduling of the entire energy storage peak-shaving power station system. The intelligent centralized control center formulates a power generation plan for the photovoltaic modules based on the daily solar radiation intensity forecast. The grid-connected inverter converts the DC power into AC power, which is then preferentially supplied to the air-source heat pump system, the water-source heat pump system, and the electrical equipment in the organic vegetable garden. When photovoltaic power generation is insufficient, it automatically switches to the mains power grid for power supply, and supplies power during off-peak hours at night to ensure continuous operation of the system.

3. The solar-air-energy large-capacity, long-cycle energy storage and peak-shaving power station system project according to claim 1 is characterized by: The giant underground vacuum insulation energy storage reservoir has an upper heat storage area, a middle heat storage area and a caisson heat storage area which are connected from top to bottom. The upper heat storage area, the middle heat storage area and the caisson heat storage area respectively store liquid heat storage media at different temperatures. The upper heat storage area is composed of a steel-concrete cover plate, a steel-concrete storage wall A with an embedded vacuum insulation layer, and a steel-concrete expanded clay bottom plate; the middle heat storage area is composed of a steel-concrete expanded clay bottom plate, a steel-concrete storage wall B with an embedded vacuum insulation layer, and a steel-concrete bottom plate; the caisson heat storage area is composed of a steel-concrete bottom plate, a caisson steel-concrete wall with an embedded caisson vacuum insulation layer, and a caisson steel-concrete bottom plate.

4. The solar-air energy large-capacity, long-cycle energy storage and peak-shaving power station system project according to claim 3 is characterized by: Before the heating season, the intelligent centralized control center remotely controls the water source heat pump system and the air source heat pump system to operate in cascade mode to increase the temperature of the heat storage medium. When the heating season is about to end, the intelligent centralized control center remotely controls the water source heat pump system to reversely absorb heat and cool the heat storage medium. During the heating process, the high-temperature heat storage medium flows upward and the low-temperature heat storage medium flows downward, so that the upper heat storage area stores 60-80℃ high-temperature medium, the middle heat storage area stores 40-60℃ medium-temperature medium, and the caisson heat storage area stores 7-40℃ low-temperature medium; The heating season is about to end. The heat storage medium absorbs heat and cools down through the water source heat pump system. The caisson heat storage area stores 7°C low-temperature medium. The cooling system in the hot summer and cold winter areas extracts the low-temperature medium in the caisson heat storage area for cooling, and the waste heat from cooling is returned to the upper heat storage area for storage.

5. The solar-air energy large-capacity, long-cycle energy storage and peak-shaving power station system project according to claim 3 is characterized by: The giant underground vacuum insulated energy storage reservoir is also provided with an energy storage reservoir retaining wall, and the two sides of the energy storage reservoir retaining wall are connected to the steel-concrete reservoir wall A, the steel-concrete expanded clay bottom plate and the steel-concrete reservoir wall B. The energy storage reservoir retaining wall divides the interior of the reservoir into a high-grade heating reservoir with a smaller storage capacity and an energy storage reservoir with a larger storage capacity; the upper part of the heating reservoir is connected to the upper heat storage area of ​​the energy storage reservoir, and the lower part of the heating reservoir is connected to the middle heat storage area of ​​the energy storage reservoir.

6. The solar-air-energy large-capacity, long-cycle energy storage and peak-shaving power station system project according to claim 5 is characterized by: The water pipeline assemblies of the upper heat storage area, the middle heat storage area and the caisson heat storage area are respectively arranged at three levels, and each group of water pipeline assemblies includes several groups of water pipelines and several groups of return water pipelines; The water supply pipeline connected to the air source heat pump system extends to the bottom of the caisson heat storage area of ​​the energy storage reservoir, and the return water pipeline connected to the air source heat pump system extends to the middle heat storage area of ​​the energy storage reservoir; The water supply pipeline connected to the cooling system extends to the bottom of the caisson heat storage area of ​​the energy storage reservoir, and the return water pipeline connected to the cooling system extends to the upper heat storage area of ​​the energy storage reservoir; The water supply pipeline connected to the water source heat pump system extends to the middle heat storage area of ​​the energy storage reservoir, and the return water pipeline connected to the water source heat pump system extends to the upper heat storage area of ​​the energy storage reservoir; The water supply pipeline connected to the heating system extends to the upper heat storage area of ​​the heating reservoir, and the return water pipeline connected to the heating system extends to the middle heat storage area of ​​the energy storage reservoir; Water distributors are installed at the ends of each water supply pipeline and return pipeline to evenly distribute the flow rate of the heat storage medium and reduce disturbances.

7. The solar-air-energy large-capacity, long-cycle energy storage and peak-shaving power station system project according to claim 5 is characterized by: During the heating season, the intelligent centralized control center remotely controls the heating system, water source heat pump system and air source heat pump system to operate simultaneously; When the heating system is running, the water pipeline connected to the heating system draws the high-temperature medium from the top of the heating reservoir, and at the same time, the high-temperature medium in the heat storage area above the energy storage reservoir is automatically replenished to the heating reservoir; When the water source heat pump system is in operation, the water supply pipeline connected to the water source heat pump system draws the medium-temperature medium from the heat storage area in the middle of the energy storage reservoir, while the medium-temperature medium at the bottom of the heating reservoir flows back to the energy storage reservoir.

8. The solar-air energy large-capacity, long-cycle energy storage and peak-shaving power station system project according to claim 3 is characterized by: The steel-concrete expanded clay bottom plate is set at a 45° inclination angle; the bottom of the caisson steel-concrete wall is provided with a caisson blade foot; a steel-concrete support is installed on the steel-concrete warehouse wall A, and the steel-concrete cover plate is fixedly installed on the top of the steel-concrete warehouse wall A through the steel-concrete support.

9. The solar-air energy large-capacity, long-cycle energy storage and peak-shaving power station system project according to claim 1 is characterized by: The vertical cross-section of the giant underground vacuum thermal insulation energy storage reservoir is square, rectangular, trapezoidal or circular.

10. The solar-air-energy large-capacity, long-cycle energy storage and peak-shaving power station system project according to claim 1 is characterized by: In winter, the organic vegetable garden creates a greenhouse effect by transferring heat from the back of the photovoltaic modules to the organic soil through heat dissipation from the steel-concrete cover of the giant underground vacuum insulation energy storage tank. At the same time, the intelligent centralized control center remotely controls the air source heat pump system to assist in heating the air in the organic vegetable garden and maintain a constant temperature in the organic vegetable garden. In the summer, the temperature inside the organic vegetable botanical garden is relatively high. The intelligent centralized control center remotely controls the air source heat pump system, which draws the heat energy generated inside the organic vegetable botanical garden and stores it in a giant underground vacuum insulation energy storage tank. The air source heat pump system blows air to the top of the garden, reducing the back temperature of the photovoltaic panels and increasing power generation. The intelligent centralized control center accurately controls and maintains a constant temperature in the organic vegetable botanical garden.

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