Wind power generation prefabricated cabin integrating compressed air energy storage

Abstract

The invention discloses a wind power generation prefabricated cabin integrating compressed air energy storage. The wind power generation prefabricated cabin comprises a wind power generation cabin, an energy storage power generation cabin, an air energy storage cabin, an electric control cabin and a cold and heat source cabin. Wherein the wind power generation cabin is used for converting captured wind energy into electric energy and transmitting mechanical energy to the energy storage power generation cabin; the energy storage power generation cabin is used for realizing compressed air and compressed air expansion acting power generation; the air energy storage cabin is used for storing and releasing compressed air; the cold and heat source cabin is used for recovering waste heat, circularly supplying cooling water and maintaining the temperature of each cabin body; the electric control cabin provides electricity for equipment of the cabin body and feeds generated electricity back to a power grid. Through the arrangement of the cabin body units, integrated prefabrication of equipment can be carried out in different places, the manufacturing and mounting period of core equipment is shortened, the difficulty of construction, operation and maintenance is lowered, and the situation that an energy storage power station occupies land is avoided; the waste heat of wind power generation and compressed air energy storage can be fully utilized through the arrangement of the cold and heat source cabin in the prefabricated cabin; and the energy gradient comprehensive utilization efficiency is improved.

Description

Technical Field

[0001] This invention belongs to the field of power generation technology, and in particular relates to a prefabricated wind power generation cabin with integrated compressed air energy storage. Background Technology

[0002] In recent years, the world has set goals for carbon neutrality and zero-carbon energy efficiency, and replacing traditional fossil fuels with renewable and clean energy has become a current development trend. In the field of new energy, wind power technology has been vigorously developed due to its simple and reliable technology and short investment cost recovery period. Although the installed capacity of wind power is huge, the intermittent and unstable nature of wind resources leads to relatively low efficiency of wind power generation devices, and they cannot be connected to the grid on a large scale, resulting in a huge amount of wind power curtailment.

[0003] With technological advancements, attention has shifted towards energy storage technologies that can be integrated with wind power generation to enhance stability. Compressed air storage, chemical battery storage, pumped hydro storage, and supercapacitors are among the most widely researched and applied technologies. Chemical battery storage is the most mature, primarily using sodium-sulfur and lead-acid batteries. However, these batteries have short lifespans, requiring periodic replacement, and the recycling and disposal of expired batteries is cumbersome, resulting in high maintenance costs. Supercapacitors overcome the shortcomings of batteries, offering excellent charge and discharge performance, but their energy density per unit of storage is low, leading to high initial investment costs. Pumped hydro storage is strictly limited by geographical location, concentrated only in a few water-rich areas in the south, requiring substantial initial investment and making it difficult to establish wind-hydro complementary power stations. Compressed air storage, on the other hand, avoids the drawbacks of the other technologies, offering low investment, large capacity, and strong adaptability, making it more suitable for wind power generation.

[0004] To address the issue of unstable power output in wind power systems, the mainstream technical solution is to utilize wind energy as an external energy input in chemical battery energy storage power stations. However, such systems suffer from current and voltage limitations, high control loop costs, low safety, short lifespan, high maintenance costs, difficulties in battery recycling, and severe secondary pollution. Furthermore, battery installation requires a large land area; when the number of batteries is large, pipeline layout design becomes complex, and installation and construction cycles are prolonged. In addition, the numerous auxiliary systems required for batteries, such as electrical control, ventilation, air conditioning, and fire protection, further increase the difficulty of construction and operation, as well as the land required, thus hindering the development of this type of power station. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a prefabricated wind power generation cabin with integrated compressed air energy storage that is convenient to construct and maintain, occupies less space, and has high efficiency.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The prefabricated wind power generation cabin integrating compressed air energy storage includes a wind power generation cabin, an energy storage and power generation cabin, an air energy storage cabin, an electrical control cabin, and a cold and heat source cabin. The wind power generation cabin is connected to the wind turbine hub and the energy storage and power generation cabin via a drive shaft. The air energy storage cabin is connected to both the energy storage and power generation cabin and the cold and heat source cabin. The cold and heat source cabin and the electrical control cabin are connected to other cabins.

[0007] The wind power generation nacelle mainly consists of a wind turbine, a first gearbox, and a first clutch. The wind turbine hub is sequentially connected to the first gearbox, the first clutch, and the wind turbine via a drive shaft.

[0008] The energy storage and power generation compartment mainly consists of an energy storage motor, a vortex multiplexer, a second gearbox, and a second clutch; the wind turbine is sequentially connected to the second gearbox, the second clutch, the energy storage motor, and the vortex multiplexer via a drive shaft.

[0009] The air energy storage chamber mainly consists of an air storage tank, a first steam-water heat exchanger, and a second steam-water heat exchanger. The air storage tank is connected to the air source side of the first and second steam-water heat exchangers via pipelines. The air source side inlet of the first steam-water heat exchanger is connected to the vortex multiplexer via an air pipeline, and the air source side outlet is connected to the air storage tank via an air pipeline. The water source side inlet of the first steam-water heat exchanger is connected to the cold water tank via a water pipe, and the water source side outlet is connected to the hot water tank via a water pipe. The air source side inlet of the second steam-water heat exchanger is connected to the air storage tank via an air pipeline, and the air source side outlet is connected to the vortex multiplexer in parallel with the first steam-water heat exchanger via an air pipeline. The water source side inlet of the second steam-water heat exchanger is connected to the hot water tank via a water pipe, and the water source side outlet is connected to the cold water tank via a water pipe.

[0010] The electrical control cabin mainly consists of a first converter, a second converter, an auxiliary inverter, and a power distribution control cabinet. The first converter is electrically connected to the wind turbine generator, and the second converter is electrically connected to the energy storage motor. The output terminals of the first and second converters are electrically connected to the external power supply terminals of the prefabricated cabin and the auxiliary inverter. The output terminal of the auxiliary inverter is connected to the power distribution control cabinet. The output terminals of the power distribution control cabinet are electrically connected to each cabin, and the input terminals of the power distribution control cabinet are connected to the auxiliary inverter and the mains power interface.

[0011] The cold and heat source compartment mainly consists of a chiller unit, a cooling tower, an air handling unit, a chilled water tank, and a hot water tank. The air handling unit includes a first air handling unit, a second air handling unit, and a third air handling unit. The chilled water inlet and outlet of the chiller unit are connected to the air handling unit and the chilled water tank through circulating water pipes, and the hot water inlet and outlet are connected to the cooling tower and the hot water tank through circulating water pipes. The air handling unit is connected to the chilled water side of the chiller unit, and the first, second, and third air handling units are connected to the wind power generation compartment, the energy storage compartment, the air energy storage compartment, and the electrical control compartment through ducts and air outlets, respectively. The chilled water tank is connected to the water source side of the first steam-water heat exchanger through circulating water pipes, and the hot water tank is connected to the water source side of the second steam-water heat exchanger through circulating water pipes. The chiller unit is electrically driven by the power distribution control cabinet. The air handling units reach the air conditioning outlets of each compartment through ducts.

[0012] The wind turbine uses a feedback induction motor, induction generator, or permanent magnet synchronous motor; the energy storage motor uses a permanent magnet synchronous motor; the chiller uses a centrifugal, screw, or scroll type; the first and second steam-water heat exchangers use plate heat exchangers; the air conditioning unit uses a combined vertical or horizontal type; and the air conditioning outlet uses a grille or louver.

[0013] The prefabricated cabin adopts an insulated composite structure, and the materials and structural components of the cabin are all non-combustible.

[0014] The prefabricated cabins are equipped with auxiliary lighting, mechanical emergency ventilation fans, fire extinguishing systems, and lightning protection grounding devices.

[0015] To address the existing problems of wind power systems, the inventors designed a prefabricated wind power generation cabin integrating compressed air energy storage. This cabin includes a wind power generation cabin, an energy storage cabin, an air energy storage cabin, an electrical control cabin, and a heat and cold source cabin. The wind power generation cabin is connected to the wind turbine hub and the energy storage cabin via a drive shaft. The air energy storage cabin is connected to both the energy storage cabin and the heat and cold source cabin. The heat and cold source cabin and the electrical control cabin are connected to other cabins. Specifically, the wind power generation cabin converts captured wind energy into electrical energy and transfers mechanical energy to the energy storage cabin; the energy storage cabin compresses air and generates electricity through the expansion of compressed air; the air energy storage cabin stores and releases compressed air; the heat and cold source cabin recovers waste heat, circulates cooling water, and maintains the temperature of each cabin; and the electrical control cabin provides power to the cabin's own equipment and feeds the generated electricity back to the grid.

[0016] This invention enables integrated prefabrication of equipment in different locations through the setting of cabin units, reducing the manufacturing and installation cycle of core equipment, lowering the difficulty of construction and operation and maintenance, avoiding the land occupation required for setting up energy storage power stations, and making full use of the waste heat from wind power generation and compressed air energy storage by setting up cold and heat source cabins in the prefabricated cabins, thereby improving the comprehensive utilization efficiency of energy cascade.

[0017] Compared with the prior art, the present invention has the following beneficial effects: (1) Energy storage participates in the regulation of generators, helps resist the randomness and fluctuation of wind energy, smooths the instantaneous power output, and ensures the normal and stable operation of wind turbine system.

[0018] (2) Energy storage can smooth out power and dispatch energy during peak power generation periods when there is insufficient electricity, play a role in peak shaving and valley filling, ensure stable and continuous power consumption for users, eliminate energy supply and demand imbalance, solve wind curtailment problem and improve wind turbine utilization.

[0019] (3) The dual-motor control method can compress and store energy in both mechanical and electrical coupling modes, simplifying the energy conversion process, achieving flexible torque distribution, and reducing the footprint of the equipment through integrated design. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the prefabricated wind power generation cabin integrating compressed air energy storage according to the present invention.

[0021] Figure 2 This is a schematic diagram of the power generation system of the wind power generation prefabricated cabin integrating compressed air energy storage according to the present invention.

[0022] In the diagram: 1 Wind power generation nacelle, 1-1 Wind turbine, 1-2 First gearbox, 1-3 First clutch, 1-4 First air conditioning louver; 2 Energy storage power generation nacelle, 2-1 Energy storage motor, 2-2 Vortex multiplexer, 2-3 Second gearbox, 2-4 Second clutch, 2-5 Second air conditioning louver; 3 Air energy storage nacelle, 3-1 Air tank, 3-2 First steam-water heat exchanger, 3-3 Second steam-water heat exchanger, 3-4 Third air conditioning louver; 4 Electrical control nacelle, 4-1 First converter, 4-2 Second converter, 4-3 Auxiliary inverter, 4-4 Power distribution control cabinet, 4-5 Fourth air conditioning louver; 5 Cold and heat source nacelle; 5-1 Chiller unit, 5-2 Cooling tower, 5-3 First air conditioning unit, 5-4 Second air conditioning unit, 5-5 Third air conditioning unit, 5-6 Cold water tank, 5-7 Hot water tank. Detailed Implementation

[0023] I. Basic Structure and Functions like Figure 1As shown, the prefabricated wind power generation pod with integrated compressed air energy storage of the present invention includes a wind power generation pod 1, an energy storage and power generation pod 2, an air energy storage pod 3, an electrical control pod 4, and a cold and heat source pod 5. The wind power generation pod 1 is connected to the wind turbine hub and the energy storage and power generation pod 5 via a drive shaft, and is used to convert captured wind energy into electrical energy and transmit it to the electrical control pod 5, and to convert excess wind energy into mechanical energy and transmit it to the energy storage and power generation pod 2 for supply to the grid or for self-use. The energy storage and power generation pod 2 is used to realize the dual-mode delivery of compressed air to the air energy storage pod 3 through both electrical coupling and mechanical coupling, and to process compressed air from the air energy storage pod 3. Compressed air in compartment 3 expands to generate electricity, which is then fed back to the electrical control compartment 4, thus converting mechanical or electrical energy into gas internal energy, and vice versa. Air storage compartment 3 is connected to energy storage and power generation compartment 2 and heat / cold source compartment 5, respectively, for storing and releasing compressed air. The electrical control compartment 4 provides power to its own equipment and transmits wind power and air expansion power generation back to the grid. Heat / cold source compartment 5 and electrical control compartment 4 are connected to other compartments for waste heat recovery from compression and expansion, cooling water circulation, and maintaining the operating temperature of equipment within each compartment. The wind turbine nacelle mainly consists of a wind turbine generator, a first gearbox, and a first clutch. The turbine hub is sequentially connected to the first gearbox, the first clutch, and the wind turbine generator via a drive shaft. The wind turbine generator is sequentially connected to the second gearbox, the second clutch, the energy storage motor, and the vortex multiplexer via a drive shaft. The appropriate wind turbine generator speed is selected based on the different oncoming wind speeds of the blades to achieve maximum power capture at that wind speed. The wind turbine generator uses a feedback induction motor, induction generator, or permanent magnet synchronous motor to convert the mechanical energy transmitted from the hub through the drive shaft into electrical energy. The first gearbox 1-2 is used to increase the speed of the hub's drive shaft to match the speed of the wind turbine generator 1-1 as closely as possible, ensuring overall efficiency in wind power generation mode. The first clutch 1-3 uses an electromagnetically controlled friction method to connect or disconnect the drive shaft between the hub and the wind turbine generator 1-1, flexibly switching the system coupling mode.

[0024] The energy storage and power generation compartment mainly consists of an energy storage motor, a vortex multiplexer, a second gearbox, and a second clutch. The energy storage motor 2-1 is a permanent magnet synchronous motor that can convert the mechanical energy transmitted by the hub and the vortex multiplexer 2-2 into electrical energy. The vortex multiplexer 2-2 can be driven by the energy storage motor 2-1 to compress air and store it in the air storage tank 3-1. On the other hand, it can also expand the high-pressure gas in the air storage tank 3-1 to do work, allowing the vortex multiplexer 2-2 to drive the energy storage motor 2-1 to generate electricity. The second gearbox 2-3 is used to increase the speed of the drive shaft of the wind turbine generator 1-1 and make it as close as possible to the speed of the energy storage motor 2-1 to ensure the overall efficiency in the wind power generation mode. The second clutch 2-4 uses an electromagnetically controlled friction method to connect or disconnect the drive shaft between the wind turbine generator 1-1 and the energy storage motor 2-1, allowing for flexible switching of the system coupling mode. The wind turbine generator 1-1 is connected in sequence to the second clutch 2-4, the second gearbox 2-3, the energy storage motor 2-1 and the vortex multiplexer 2-2 via a drive shaft. Depending on the wind energy capture power of the wind turbine generator 1, it can realize electrical energy storage, mechanical energy storage and energy release respectively.

[0025] The air storage chamber mainly consists of an air storage tank, a first steam-water heat exchanger, and a second steam-water heat exchanger. The air storage tank is connected to the air source side of the first and second steam-water heat exchangers via pipelines and is used to store and release compressed air. Specifically, the first steam-water heat exchanger 3-2 is used to precool the compressed air from the scroll multiplexer 2-2. The air source side inlet of the first steam-water heat exchanger is connected to the scroll multiplexer via an air pipeline, and the air source side outlet is connected to the air storage tank via an air pipeline. The water source side inlet of the first steam-water heat exchanger is connected to the cold water tank via a water pipe, and the water source side outlet is connected to the hot water tank via a water pipe. The second steam-water heat exchanger 3-3 is used to preheat the compressed air from the air storage tank 3-1. The air source side inlet of the second steam-water heat exchanger is connected to the air storage tank via an air pipeline, and the air source side outlet is connected to the scroll multiplexer in parallel with the first steam-water heat exchanger via an air pipeline. The water source side inlet of the second steam-water heat exchanger is connected to the hot water tank via a water pipe, and the water source side outlet is connected to the cold water tank via a water pipe. The first and second steam-water heat exchangers are plate heat exchangers.

[0026] The electrical control cabin mainly consists of a first converter, a second converter, an auxiliary inverter, and a power distribution control cabinet. The first converter is electrically connected to the wind turbine, converting its generated electrical energy into AC power that meets grid connection requirements and feeding it back into the grid. It also performs functions such as strong magnetic field protection, weak magnetic field protection, dehumidification, and short-circuit protection for the wind turbine 1-1. The second converter is electrically connected to the energy storage motor, converting its generated electrical energy into AC power that meets grid connection requirements and feeding it back into the grid. It also performs functions such as strong magnetic field protection, weak magnetic field protection, dehumidification, and short-circuit protection for the energy storage motor 2-1. The output terminals of the first and second converters are connected to the external power supply terminals of the prefabricated cabin, supplying power to the external power grid. The input terminal of the auxiliary inverter is electrically connected to the first and second converters, and its output terminal is connected to the power distribution control cabinet. It converts the AC power generated by the first and second converters 4-1 and 4-2 into DC power, performs voltage boosting, and then supplies power to the cabin via the power distribution control cabinet 4-4. The output terminals of the power distribution control cabinet are electrically connected to each compartment for the self-powering of the equipment inside the compartment, while the input terminals of the power distribution control cabinet are connected to the auxiliary inverter and the mains power interface.

[0027] The cold and heat source compartment mainly consists of a chiller unit, a cooling tower, an air handling unit, a chilled water tank, and a hot water tank. The air handling unit includes a first air conditioning unit, a second air conditioning unit, and a third air conditioning unit. The chiller unit 5-1 is used to pre-cool and preheat compressed air and maintain the temperature requirements of each prefabricated compartment. The chilled water inlet and outlet of the chiller unit are connected to the air handling unit and the chilled water tank through circulating water pipes, and its hot water inlet and outlet are connected to the cooling tower and the hot water tank through circulating water pipes. The cooling tower 5-2 is used to absorb excess heat generated by the chiller unit 5-1 and dissipate it. The air handling unit is connected to the chilled water side of the chiller unit and exchanges heat with the air in the compartment through the chiller unit 5-1 to generate cool air. The first, second, and third air conditioning units are connected to the wind power generation compartment, the energy storage compartment, the air energy storage compartment, and the electrical control compartment through ducts and air outlets, respectively, to deliver cool air into each compartment for temperature and humidity regulation. Cold water tank 5-6 stores the cooling capacity generated by chiller unit 5-1, and is connected to the water source side of the first steam-water heat exchanger via a circulating water pipe; hot water tank 5-7 stores the heat recovered by chiller unit 5-1, and is connected to the water source side of the second steam-water heat exchanger via a circulating water pipe; the chiller unit is electrically driven by the power distribution control cabinet; the air handling units deliver air to the air conditioning vents of each compartment via ducts. The chiller unit is centrifugal, screw, or scroll type; the air handling units are combined vertical or horizontal types. Chiller unit 5-1 is electrically driven via power distribution control cabinet 4-4. It produces chilled water and hot water for air conditioning and stores them in chilled water tank 5-6 and hot water tank 5-7, respectively, for use by air handling units (5-3, 5-4, and 5-5) and air-water heat exchangers (first air-water heat exchanger 3-2 and second air-water heat exchanger 3-3). Excess condensation heat that cannot be stored is discharged into the atmosphere via cooling tower 5-2. The first air-water heat exchanger 3-2 and the second air-water heat exchanger 3-3 can circulate compressed gas with the chilled and hot water for air conditioning, respectively, adjusting the pressure to improve the performance of the scroll multiplexer. Compression and expansion efficiency of 2-2; When the temperature inside the cabin is high, the air handling units (5-3, 5-4 and 5-5) exchange heat with the outdoor fresh air through the chilled water supply of the chiller unit 5-1 to generate cold air, which is then delivered to the air conditioning outlets (first air conditioning outlet louver 1-4, second air conditioning outlet louver 2-5, third air conditioning outlet louver 3-4 and fourth air conditioning outlet louver 4-5) through the air ducts. The air conditioning outlets can be made of grilles or louvers to deliver cold air into each cabin, ensuring smooth airflow without dead corners and achieving the temperature and humidity of the cabin to meet the equipment operation requirements.

[0028] Furthermore, the prefabricated wind power generation cabin integrating compressed air energy storage of this invention shall meet the relevant requirements of the "Code for Fire Protection Design of Buildings" GB 50016 and the "Standard for Fire Protection Design of Thermal Power Plants and Substations" GB 50229 for its walls, roof, and structural components. The walls and roof of the prefabricated cabin adopt a thermal insulation composite structure. The wall materials, from the outside to the inside, consist of painted fiber cement board, moisture-proof sealing material, thermal insulation material, lining board, structural components, and aluminum composite panels. The roof consists of a roof, moisture-proof sealing material, thermal insulation material, structural components, and a suspended ceiling. Specifically, all materials and components of the cabin are made of fire-resistant and non-combustible materials; the wall insulation material uses rock wool or polyurethane, and its thickness is determined based on the meteorological conditions of the specific project location through thermodynamic simulation calculations; the total thickness of the overall wall should not be less than 150mm; the suspended ceiling uses aluminum composite panels with embedded polyurethane insulation layers, and the roof is made of stainless steel. Each sub-compartment within the prefabricated cabin (wind power generation compartment 1, energy storage and power generation compartment 2, air energy storage compartment 3, electrical control compartment 4, and cold and heat source compartment 5) is equipped with auxiliary lighting, mechanical emergency ventilation fans, fire extinguishing systems, and lightning protection grounding devices, further improving the reliability and safety of the prefabricated cabin.

[0029] II. Working Principle and Process like Figure 2 As shown, the wind power generation prefabricated cabin with integrated compressed air energy storage of the present invention has a core power conversion system including a wind turbine generator 1-1, a first gearbox 1-2, a first clutch 1-3, an energy storage motor 2-1, a vortex multiplexer 2-2, a gearbox 2-3, a second clutch 2-4, an air storage tank 3-1, a first steam-water heat exchanger 3-2, a second steam-water heat exchanger 3-3, a first converter 4-1, and a second converter 4-2. The dual-motor unit, consisting of two motors and a gearbox and clutch connected in the middle, can simultaneously generate wind power and store energy. The load power is balanced by controlling the torque of motors 1-1 and 2-1. The first clutch 1-3 and the second clutch 2-4 can flexibly switch between different compression coupling modes in the energy storage mode, increasing the system's flexibility. The vortex multiplexer 2-2 can achieve compression and expansion dual reuse, saving cabin space and investment costs. The first steam-water heat exchanger 3-2 and the second steam-water heat exchanger 3-3 can realize the heat recovery of compressed air and preheating before expansion, improving the system's comprehensive energy cascade utilization efficiency.

[0030] To ensure load power balance, the power generation system operates in four modes: wind power mode, electric energy storage mode, mechanical energy storage mode, and energy release mode.

[0031] In wind power mode, the wind turbine (blades and impeller) captures power and generates power load power at a constant level. At this time, the first clutch 1-3 is closed and the second clutch 2-4 is open. After the impeller is accelerated by the first gearbox 1-2, it drives the wind turbine generator 1-1 to generate electricity. The generated electricity is converted by the first converter 4-1 and then connected to the outdoor transformer and to supply power to the equipment inside the prefabricated cabin.

[0032] In the electric energy storage mode, the wind turbine captures more power than the power demand of the power generation load. The speed of the wind turbine generator 1-1 does not match the rated speed of the energy storage motor 2-1. At this time, the first clutch 1-3 is closed and the second clutch 2-4 is disengaged. The electrical energy generated by the wind turbine generator 1-1 is converted by the first converter 4-1 and fed back to the energy storage motor 2-1 through the bus cable and the first converter 4-1. The energy storage motor 2-1 drives the vortex multiplexer 2-2 to compress the air. The compressed air is cooled and cooled by the first steam-water heat exchanger 3-2 to recover heat and then sent into the air storage tank 3-1 for storage.

[0033] In mechanical energy storage mode, the wind turbine captures more power than the power generation load demand. The speed of wind turbine 1-1 is the same as the rated speed of energy storage motor 2-1. At this time, the first clutch 1-3 and the second clutch 2-4 are both closed. On the one hand, the impeller continuously converts wind energy into mechanical energy, driving wind turbine 1-1 to generate electrical energy. After conversion by the first converter 4-1, the electrical energy is fed back to the external grid through the bus cable. On the other hand, the energy storage motor 2-1 drives the vortex multiplexer 2-2 to compress air through the drive shaft. After the compressed air is cooled and cooled by the first steam-water heat exchanger 3-2 to recover heat, it is transported into the air storage tank 3-1 for storage.

[0034] In the energy release mode, when the outdoor wind speed is low or the grid load increases, the wind turbine's captured power cannot meet the power demand of the power generation load. At this time, the first clutch 1-3 is closed and the second clutch 2-4 is disengaged. On the one hand, the impeller continuously converts wind energy into mechanical energy, driving the wind turbine 1-1 to generate electricity, which is then converted and transmitted to the cable bus via the first converter 4-1. On the other hand, the air tank releases compressed air, which is heated by the second steam-water heat exchanger 3-3 and then enters the vortex multiplexer 2-2 to expand and do work, converting it into mechanical energy. The vortex multiplexer 2-2 drives the energy storage motor 2-1 to generate electrical energy, which is then converted and fed back to the cable bus via the second converter 4-2.

Claims

1. A prefabricated wind power generation cabin integrating compressed air energy storage, characterized in that... It includes a wind power generation pod, an energy storage power generation pod, an air energy storage pod, an electrical control pod, and a cold and heat source pod. The wind power generation pod is connected to the wind turbine hub and the energy storage power generation pod via a drive shaft. The air energy storage pod is connected to both the energy storage power generation pod and the cold and heat source pod. The cold and heat source pod and the electrical control pod are connected to other pods.

2. The prefabricated wind power generation pod according to claim 1, characterized in that: The wind power generation nacelle mainly consists of a wind turbine, a first gearbox, and a first clutch. The wind turbine hub is sequentially connected to the first gearbox, the first clutch, and the wind turbine via a drive shaft.

3. The prefabricated wind power generation pod according to claim 2, characterized in that: The energy storage and power generation cabin mainly consists of an energy storage motor, a vortex multiplexer, a second gearbox, and a second clutch; the wind turbine is sequentially connected to the second gearbox, the second clutch, the energy storage motor, and the vortex multiplexer via a drive shaft.

4. The wind power generation prefabricated pod according to claim 3, characterized in that: The air energy storage chamber mainly consists of an air storage tank, a first steam-water heat exchanger, and a second steam-water heat exchanger. The air storage tank is connected to the air source side of the first and second steam-water heat exchangers via pipelines. The air source side inlet of the first steam-water heat exchanger is connected to the vortex multiplexer via an air pipeline, and the air source side outlet is connected to the air storage tank via an air pipeline. The water source side inlet of the first steam-water heat exchanger is connected to the cold water tank via a water pipe, and the water source side outlet is connected to the hot water tank via a water pipe. The air source side inlet of the second steam-water heat exchanger is connected to the air storage tank via an air pipeline, and the air source side outlet is connected to the vortex multiplexer in parallel with the first steam-water heat exchanger via an air pipeline. The water source side inlet of the second steam-water heat exchanger is connected to the hot water tank via a water pipe, and the water source side outlet is connected to the cold water tank via a water pipe.

5. The wind power generation prefabricated pod according to claim 4, characterized in that: The electrical control cabin mainly consists of a first converter, a second converter, an auxiliary inverter, and a power distribution control cabinet. The first converter is electrically connected to the wind turbine generator, and the second converter is electrically connected to the energy storage motor. The output terminals of the first and second converters are electrically connected to the external power supply terminal of the prefabricated cabin and the auxiliary inverter. The output terminal of the auxiliary inverter is connected to the power distribution control cabinet. The output terminals of the power distribution control cabinet are electrically connected to each cabin, and the input terminals of the power distribution control cabinet are connected to the auxiliary inverter and the mains power interface.

6. The wind power generation prefabricated pod according to claim 5, characterized in that: The cold and heat source compartment mainly consists of a chiller unit, a cooling tower, an air handling unit, a chilled water tank, and a hot water tank. The air handling unit includes a first air conditioning unit, a second air conditioning unit, and a third air conditioning unit. The chilled water inlet and outlet of the chiller unit are connected to the air handling unit and the chilled water tank via circulating water pipes, and the hot water inlet and outlet are connected to the cooling tower and the hot water tank via circulating water pipes. The air handling unit is connected to the chilled water side of the chiller unit, and the first, second, and third air conditioning units are respectively connected to the wind power generation compartment, the energy storage compartment, the air energy storage compartment, and the electrical control compartment via ducts and air outlets. The chilled water tank is connected to the water source side of the first steam-water heat exchanger via circulating water pipes, and the hot water tank is connected to the water source side of the second steam-water heat exchanger via circulating water pipes. The chiller unit is electrically driven by a power distribution control cabinet. The air handling units reach the air conditioning outlets of each compartment via ducts.

7. The wind power generation prefabricated pod according to claim 6, characterized in that: The wind turbine is a feedback induction motor, induction generator, or permanent magnet synchronous motor; the energy storage motor is a permanent magnet synchronous motor; the chiller is a centrifugal, screw, or scroll type; the first and second steam-water heat exchangers are plate heat exchangers; the air conditioning unit is a combined vertical or horizontal type; and the air conditioning outlet is a grille or louver.

8. The prefabricated wind power generation pod according to claim 1, characterized in that: The prefabricated cabin adopts an insulated composite structure, and the materials and structural components of the cabin are all non-combustible.

9. The prefabricated wind power generation pod according to claim 1, characterized in that: The prefabricated cabins are equipped with auxiliary lighting, mechanical emergency ventilation fans, fire extinguishing systems, and lightning protection grounding devices.

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