Array type integrated control device of flywheel energy storage system
By dividing the container into high-voltage, transformer, and low-voltage compartments and using an array layout of parallel converter units, the space occupation and electrical safety issues of the flywheel control device are solved, enabling convenient transportation and efficient maintenance, and improving the system's flexibility and safety.
Patent Information
- Application Number
- CN202520237833.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-14
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-02-14
AI Technical Summary
Existing flywheel control devices are not compact in structure, occupy a large space, are inconvenient to transport, pose electrical safety hazards and have high operational risks, especially in harsh environments.
The container is divided into a high-voltage compartment, a transformer compartment, and a low-voltage compartment by wall panels. Two sets of converter units are connected in parallel to form an array layout, which realizes electrical isolation and equipment redundancy design, optimizes space layout and electrical safety.
It improves transportation convenience, reduces construction costs, enhances electrical safety and system reliability, improves equipment maintenance convenience and safety, and adapts to different energy storage needs.
Smart Images
Figure CN223744166U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of flywheel energy storage technology, specifically relating to an array-type integrated control device for a flywheel energy storage system. Background Technology
[0002] Energy storage technology mitigates grid fluctuations and promotes the consumption of renewable energy by storing electrical energy during periods of low load and releasing it during periods of high load. Common energy storage technologies include electrochemical energy storage, pumped hydro storage, superconducting energy storage, flywheel energy storage, and compressed air energy storage. Among these, pumped hydro storage and electrochemical energy storage technologies are more widely used and have a high market share. However, pumped hydro storage is easily limited by terrain and suffers from low power density and efficiency, as well as slow response speed. Electrochemical energy storage technology still needs further breakthroughs in large-scale integrated applications due to its safety and lifespan limitations. Superconducting energy storage technology, on the other hand, is not currently suitable for large-scale commercial applications due to its high requirements for materials and cryogenic environments, as well as its high cost.
[0003] In contrast, flywheel energy storage technology, with its extremely high power density and energy conversion efficiency, has gradually gained widespread attention and rapid development in the industry. Flywheel energy storage technology offers rapid response, long service life, and strong adaptability to operating environments, making it a relatively ideal form of power-grade energy storage. Specifically, a full-power converter or a doubly-fed converter is used to realize energy conversion and transfer in the flywheel energy storage system. During the charging (energy storage) phase, the flywheel energy storage system converts grid energy into DC power through a grid-side AC / DC module, and then provides adjustable AC power (amplitude and frequency) to the flywheel energy storage motor through a generator-side DC / AC module. This allows the motor to convert electrical energy into mechanical energy, driving the flywheel to accelerate and store energy in the form of kinetic energy. During the discharging (energy release) phase, the high-speed rotating flywheel drives the motor to generate electricity. The generated electricity is then output through the generator-side AC / DC module and the grid-side DC / AC module, providing current and voltage suitable for the grid, completing the energy release process from mechanical energy to electrical energy, and feeding the stored energy back into the grid. Meanwhile, during the power conversion process, by adjusting parameters such as the voltage and frequency output by the converter, the speed of the motor can be precisely controlled, enabling the flywheel to run at a suitable speed under different operating conditions, thereby achieving efficient energy storage and release. For example, when the grid load is low, the flywheel can be controlled to accelerate its rotation to store more energy, while when the grid load is high, the flywheel can be controlled to decelerate to release energy.
[0004] However, despite the numerous advantages of flywheel energy storage technology, most current flywheel control devices employ a distributed, single-function cabinet layout. This design results in a lack of compactness in the overall device structure, a large footprint, and increased difficulty in transportation and relocation. Furthermore, voltage differences between the various functional cabinets can not only create potential electrical safety hazards but also increase the risks for personnel operating the devices. These problems are particularly pronounced in the widely used field of wind power generation, where flywheel control devices often need to be deployed in remote wind farms with harsh environmental conditions.
[0005] Therefore, there is an urgent need to design a new type of flywheel control device to optimize its layout, improve transportation convenience, and further enhance electrical safety and the safety of personnel operation. Utility Model Content
[0006] The purpose of this invention is to solve the aforementioned problems in the existing technology and provide an array-type integrated control device for a flywheel energy storage system. This device adopts an integrated container body, which is divided into a high-voltage compartment, a transformer compartment, and a low-voltage compartment by wall panels. The high-voltage compartment houses the high-voltage switchgear, the transformer compartment houses the transformer, and the low-voltage compartment houses two sets of parallel converter units in a double-row array layout. This effectively solves the technical problems of existing flywheel control devices in terms of space occupation, transportation convenience, electrical safety, and personnel operational safety.
[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0008] An array-type integrated control device for a flywheel energy storage system includes an integrated container body. The container body is divided from left to right by wall panels into a high-voltage compartment, a transformer compartment, and a low-voltage compartment. The high-voltage compartment has a high-voltage door and houses a high-voltage switchgear connected to an external power grid. The low-voltage compartment has a low-voltage door and houses a low-voltage switchgear and two sets of converter units. The two sets of converter units are arranged in a double-row array within the low-voltage compartment and are connected in parallel to one side of the low-voltage switchgear via cables. The transformer compartment has a transformer door and houses a transformer with a high-voltage side and a low-voltage side. The high-voltage side is connected to the high-voltage switchgear via cables, and the low-voltage side is connected to the low-voltage switchgear via cables.
[0009] The two sets of converter units in the low-pressure compartment are respectively close to the inner wall of the opposite side of the container body. The two sets of converter units are separated from the wall panels of the low-pressure compartment, and a maintenance passage is formed between the two sets of converter units.
[0010] A power distribution cabinet is installed in the low-pressure compartment. The power distribution cabinet is connected to the low-voltage switchgear via cables and is located in the space formed between a set of converter units and the wall panel of the low-pressure compartment. The low-voltage switchgear is located in the space formed between another set of converter units and the wall panel of the low-pressure compartment.
[0011] The converter unit includes a converter cabinet and a load cabinet installed side by side. The converter cabinet is connected to the low-voltage switch cabinet and the load cabinet respectively via cables. The distribution cabinet is located between the converter cabinet and the low-voltage compartment wall panel in one converter unit, and the low-voltage switch cabinet is located between the converter cabinet and the low-voltage compartment wall panel in another converter unit.
[0012] The low-pressure compartment door is located on the right side of the low-pressure compartment, and the maintenance passage leads directly to the low-pressure compartment door; the bottom of the low-pressure compartment is equipped with a line maintenance well for external wiring, which is located inside the maintenance passage.
[0013] The transformer is positioned with the high-voltage side facing the rear of the transformer compartment and the low-voltage side facing the front of the transformer compartment. The transformer compartment door includes a front door and a rear door, and a high-voltage isolation protection door is also provided on the inside of the rear door.
[0014] The high-pressure chamber doors include a front high-pressure chamber door, a rear high-pressure chamber door, and a left high-pressure chamber door, all located within the high-pressure chamber.
[0015] The container body has external dimensions of 7600mm in length, 2400mm in width, and 2900mm in height.
[0016] The advantages of using this utility model are:
[0017] 1. In this utility model, firstly, the container body is divided into a high-voltage compartment, a transformer compartment, and a low-voltage compartment by wall panels, which achieves electrical isolation, avoids direct contact between equipment of different voltage levels, and ensures electrical safety and the safety of operators when performing equipment maintenance; furthermore, by setting high-voltage doors in the high-voltage compartment, transformer doors in the transformer compartment, and low-voltage doors in the low-voltage compartment, great convenience is provided for the installation and daily maintenance of equipment inside the container body.
[0018] Secondly, this utility model, through its integrated container structure design, combines the installation of high-voltage switchgear in the high-voltage compartment, transformers in the transformer compartment, and low-voltage switchgear in the low-voltage compartment with two sets of converter units forming a double-row array design, greatly optimizing the spatial layout of the container and significantly saving floor space. Compared to the distributed layout of individual functional cabinets in existing technologies, this utility model boasts high compactness and strong overall integrity, facilitating overall movement and transportation.
[0019] Third, this invention achieves the switching of the power circuit between the flywheel energy storage system and the external power grid by configuring two sets of converter units in parallel on a low-voltage switchgear. The two sets of converter units share the same high-voltage switchgear and transformer. Compared with the traditional approach of equipping each converter unit with a separate high-voltage switchgear, transformer and low-voltage switchgear, this design significantly reduces the number of electrical devices required, thereby effectively reducing the construction cost of the overall control device.
[0020] Fourth, this invention utilizes two sets of converter units arranged in a double-row array and connected in parallel, creating a redundancy design to mitigate risks. This allows each motor and its associated converter unit to operate independently. If one set of motors or converter units fails, the other set can continue to operate normally, thereby improving the reliability and stability of the entire flywheel energy storage system and enhancing its system flexibility and safety. Furthermore, during maintenance and repair, only the faulty unit can be operated on without affecting the stable operation of the entire system, significantly reducing maintenance costs and time.
[0021] Fifth, the number of converter units can be increased according to actual needs during use. Since each motor and its associated converter unit are independently connected in parallel on the low-voltage switchgear, the number of motors and converter units can be easily increased or decreased to adapt to different energy storage requirements. This layout structure greatly facilitates the expansion and upgrading of the system.
[0022] Sixth, the two sets of converter units enable this invention to manage the output of each motor more flexibly. Based on actual needs, the operating states of different motors can be adjusted to maximize energy utilization and improve efficiency, greatly optimizing energy management.
[0023] In summary, the array-integrated flywheel control device of this utility model effectively solves the technical problems of existing flywheel control devices in terms of space occupation, transportation convenience, electrical safety, and personnel operation safety. It also successfully achieves effective control of the working state of the motor and flywheel. When the power grid is under low load, electrical energy is output from the power grid to the motor side through AC / DC and DC / AC converters. The motor drives the flywheel to accelerate and rotate to store kinetic energy. When the power grid is under high load, the motor is used as a generator. The flywheel on the motor side decelerates and releases its stored kinetic energy. The motor converts this kinetic energy into electrical energy, which is then output to the power grid through AC / DC and DC / AC converters.
[0024] 2. In this utility model, two sets of converter units in the low-pressure compartment are respectively close to the inner walls of opposite sides of the container body, and the two sets of converter units are respectively separated from the wall panels of the low-pressure compartment. The power distribution cabinet and the low-voltage switch cabinet are respectively placed in the two intervals, which significantly improves the efficiency of container body space utilization and the compactness of the layout, and achieves the maximum reduction of container body volume. At the same time, the design of constructing a maintenance channel between the two sets of converter units improves the convenience of electrical equipment maintenance and repair.
[0025] 3. In this utility model, by placing the low-pressure compartment door on the right side of the low-pressure compartment and ensuring direct access to the door via the maintenance passage, and by installing a wiring maintenance well at the bottom of the low-pressure compartment within the maintenance passage, this layout significantly improves the efficiency and safety of equipment maintenance and repair. Maintenance personnel can directly access the equipment requiring maintenance through the low-pressure compartment door and maintenance passage. Furthermore, the wiring maintenance well facilitates the inspection and replacement of external wiring, thereby enhancing the maintainability and operational safety of the entire system.
[0026] 4. In this utility model, by setting a high-voltage isolation and protection door on the inside of the rear door of the transformer chamber, personnel are effectively prevented from accidentally entering the high-voltage area, avoiding high-voltage electric shock accidents and ensuring personnel safety.
[0027] 5. In this utility model, by designing a front door, a rear door, and a left side door for the high-pressure chamber, operators can enter and exit the high-pressure chamber from different directions to carry out equipment installation and maintenance, which greatly improves the practicality and ease of installation and maintenance of this utility model.
[0028] 6. This utility model adopts a container body structure design with a length of 7600mm, a width of 2400mm, and a height of 2900mm. This specification control makes the control device easy to lift and move when needed, thereby greatly facilitating the relocation and transportation process of the device. Attached Figure Description
[0029] Figure 1 This is a schematic diagram of the planar layout structure of this utility model;
[0030] Figure 2 This is a schematic diagram of the structure of this utility model from a bottom view.
[0031] The diagram is labeled as follows: 1. High-voltage compartment; 2. Transformer compartment; 20. Transformer compartment door; 201. Front door of transformer compartment; 202. Rear door of transformer compartment; 203. High-voltage isolation and protection door; 21. Transformer; 210. High-voltage side; 211. Low-voltage side; 3. Low-voltage compartment; 30. Low-voltage compartment door; 31. Low-voltage switchgear; 32. Converter unit; 320. Converter cabinet; 321. Load cabinet; 33. Distribution cabinet; 34. Maintenance passage; 4. Wall panel; 5. Cable passage hole; 6. Cable passage area; 7. Cable connection hole A; 8. Cable connection hole B; 9. Cable connection hole C; 10. High-voltage compartment door; 11. High-voltage switchgear; 12. Line maintenance well; 13. Industrial air conditioner; 14. Container body. Detailed Implementation
[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. For ease of description, the description of the relative positional relationships of each component is based on the layout of the accompanying drawings, such as the positional relationships of front, back, top, bottom, left, and right, which are determined according to the layout direction of the accompanying drawings.
[0033] This utility model discloses an array-type integrated control device for a flywheel energy storage system, such as... Figure 1 As shown, it includes an integrated container body 14, to Figure 1 Taking the direction shown as an example, the container body 14 is divided into a high-voltage compartment 1, a transformer compartment 2 and a low-voltage compartment 3 from left to right by wall panels 4 for electrical isolation to ensure the safety of personnel operation.
[0034] In terms of material selection, weather-resistant steel plates are preferred for the container body and wall panels, while an internal thermal insulation layer is installed. To ensure the safety of the control device operating in harsh outdoor environments, all thermal insulation materials, internal and external decorative materials used in the container structure are flame-retardant, with the thermal insulation layer preferably being a rock wool sandwich panel with a thickness of not less than 50mm. This design enables the control device to adapt to harsh outdoor environments, achieving a high level of electrical equipment protection and corrosion resistance, and ensuring a long service life. According to the applicant's actual calculations, the container structure of this utility model can achieve an IP55 protection level, a C-level corrosion resistance level, and a designed service life of up to 25 years.
[0035] The high-voltage compartment 1 is equipped with a high-voltage compartment door 10. A high-voltage switchgear 11 connected to the external power grid is installed inside the high-voltage compartment 1. Each converter unit 32 is connected to a motor, and the motor is coaxially connected to a flywheel. Since the connection relationship between the converter unit 32 and the motor is known in the art, it will not be described further here.
[0036] The low-pressure compartment 3 is equipped with a low-pressure compartment door 30. Inside the low-pressure compartment 3, a low-voltage switchgear 31 and two sets of converter units 32 are installed. The two sets of converter units 32 form a double-row array layout within the low-pressure compartment 3, and are connected in parallel to one side of the low-voltage switchgear 31 via cables. Thus, each set of converter units 32 can independently achieve AC / DC and DC / AC conversion, and they respectively control and serve the operation of two motors. Specifically, the control device of this invention controls the working state of the motor and flywheel. When the power grid is under low load, the control device acts as an AC / DC converter, and the motor drives the flywheel to accelerate and store kinetic energy. When the power grid is under high load, the control device acts as a DC / AC converter, and the motor is used as an engine. The flywheel decelerates and releases its stored kinetic energy, which is then converted into electrical energy by the motor.
[0037] The transformer compartment 2 is equipped with a transformer door 20. A transformer 21 is installed inside the transformer compartment 2. The transformer 21 has a high-voltage side 210 and a low-voltage side 211. The high-voltage side 210 is connected to the high-voltage switchgear 11 via a cable, and the low-voltage side 211 is connected to the low-voltage switchgear 31 via a cable.
[0038] In this utility model, each door is designed specifically for the installation and daily maintenance of equipment inside the high-voltage compartment 1, transformer compartment 2, and low-voltage compartment 3. At the same time, the high-voltage compartment 1, transformer compartment 2, and low-voltage compartment 3 are electrically isolated by wall panels 4, so that the high-voltage switchgear 11, transformer 21, and low-voltage switchgear 31 of different voltage levels do not affect each other, which is beneficial to electrical safety and the safety of operators when performing equipment maintenance.
[0039] In this invention, the transformer 21 is preferably a 35kV transformer. The transformer 21 has a high-voltage side 210 and a low-voltage side 211. The high-voltage side 210 is connected to the high-voltage switchgear 11 via cables, specifically, the high-voltage winding of the high-voltage side 210 is connected to the high-voltage switchgear 11. The low-voltage side 211 is connected to the low-voltage switchgear 31 via cables, specifically, the low-voltage winding of the low-voltage side 211 is connected to the low-voltage switchgear 31. Furthermore, the high-voltage switchgear 11 is equipped with a disconnect switch. The inlet of the disconnect switch is connected to the external power grid via a cable, and the outlet of the disconnect switch is connected to the high-voltage winding of the high-voltage side 210 of the transformer 21 via a cable.
[0040] In addition, an industrial air conditioner 13 for regulating the internal temperature is installed on the container structure. It should be noted that, depending on the specific application scenario and requirements, in some embodiments, more sets of converter units 32 can be connected in parallel on the low-voltage switchgear 31 to expand functionality.
[0041] Continue to refer to Figure 1The two sets of converter units 32 in the low-pressure compartment 3 are respectively close to the inner wall of the opposite side of the container body 14. The two sets of converter units 32 are separated from the wall panel 4 of the low-pressure compartment 3 to provide installation space for other electrical cabinets in the low-pressure compartment 3, so as to achieve the optimal layout and minimize the volume of the container body 14. The two sets of converter units 32 form a maintenance passage 34.
[0042] The low-pressure compartment 3 is also equipped with a power distribution cabinet 33, which is connected to the low-voltage switchgear 31 via cables to obtain power from the switchgear 31. The power distribution cabinet 33 is used to supply power to lighting, fans, air conditioning and other equipment inside the container structure. The power distribution cabinet 33 is located in the space formed between a set of converter units 32 and the wall panel 4 of the low-pressure compartment 3, while the low-voltage switchgear 31 is located in the space formed between another set of converter units 32 and the wall panel 4 of the low-pressure compartment 3.
[0043] Furthermore, the converter unit 32 includes a converter cabinet 320 and a load cabinet 321 installed side by side. The converter cabinet 320 is connected to the low-voltage switch cabinet 31 and the load cabinet 321 via cables, and the converter cabinet 320 is also connected to the motor it controls and serves via cables. The load cabinet 321 is used when the flywheel energy storage system needs to be shut down quickly in an emergency. It converts the remaining mechanical energy in the motor into electrical energy, which is then consumed in the resistor cabinet to achieve rapid shutdown. The distribution cabinet 33 is located between the converter cabinet 320 in one converter unit 32 and the wall panel 4 of the low-voltage compartment 3, and the low-voltage switch cabinet 31 is located between the converter cabinet 320 in another converter unit 32 and the wall panel 4 of the low-voltage compartment 3, thereby optimizing the spatial layout within the low-voltage compartment 3.
[0044] Continue to refer to Figure 1 The low-pressure compartment door 30 is located on the right side of the low-pressure compartment 3, and the maintenance passage 34 leads directly to the low-pressure compartment door 30, facilitating operators to conduct tests and troubleshooting within the low-pressure compartment 3. The bottom of the low-pressure compartment 3 is also equipped with a wiring maintenance well 12 for external wiring, located within the maintenance passage 34.
[0045] by Figure 1 Taking the direction shown as an example, the transformer 21 is positioned with the high-voltage side 210 facing the rear of the transformer compartment 2, and the low-voltage side 211 facing the front of the transformer compartment 2. Furthermore, the transformer compartment door 20 includes a front door 201 and a rear door 202. A high-voltage isolation protection door 203 is also added to the inside of the rear door 202 to prevent personnel from accidentally approaching the high-voltage side 210 of the transformer 21 and causing a safety accident.
[0046] Furthermore, the high-pressure chamber 1 has three high-pressure doors 10, in order to... Figure 1Taking the direction shown as an example, the high-pressure chamber door 10 includes a front door, a rear door, and a left side door of the high-pressure chamber 1. The three doors are designed for entry and exit from different directions into the high-pressure chamber 1, thereby facilitating equipment installation and maintenance.
[0047] like Figure 2 As shown, the bottom of the container body 14 is provided with multiple cable passages to facilitate convenient connections between the functional cabinets in the high-voltage compartment 1, the transformer compartment 2, and the low-voltage compartment 3. Specifically, the cable passages include cable passage 5 for connecting the incoming terminal of the high-voltage switchgear 11 to the external power grid, cable passage 6 for connecting the outgoing terminal of the high-voltage switchgear 11 to the high-voltage side 210 of the transformer 21, cable connection hole A7 for connecting the low-voltage switchgear 31 to the low-voltage side 211 of the transformer 21 and to a set of converter units 32, cable connection hole B8 for connecting the low-voltage switchgear 31 to another set of converter units 32, and cable connection hole C9 for connecting the low-voltage switchgear 31 to the distribution cabinet 33.
[0048] Through the aforementioned optimized layout design, and based on the applicant's actual calculations, the overall dimensions of the integrated container body 14 of this utility model are 7600mm in length, 2400mm in width, and 2900mm in height. This ensures that the control device can be smoothly hoisted and transported when needed. At the same time, the layout is compact and saves floor space.
[0049] The above description is only a specific embodiment of the present utility model. Any feature disclosed in this specification may be replaced by other equivalent or similar features unless otherwise specified. All features or steps in all methods or processes disclosed may be combined in any way except for mutually exclusive features and / or steps.
Claims
1. An arrayed integrated control apparatus for a flywheel energy storage system, characterized by: The container body (14) is integrally formed, and the high-pressure cabin (1), the transformer cabin (2) and the low-pressure cabin (3) are sequentially arranged from left to right in the container body (14) by the wall plate (4). The high-pressure cabin (1) is provided with a high-pressure cabin door (10), and a high-voltage switch cabinet (11) connected to an external power grid is arranged in the high-pressure cabin (1). The low-pressure cabin (3) is provided with a low-pressure cabin door (30), and a low-voltage switch cabinet (31) and two sets of current conversion units (32) are arranged in the low-pressure cabin (3). The two sets of current conversion units (32) are arranged in a double-row array in the low-pressure cabin (3), and are connected in parallel on one side of the low-voltage switch cabinet (31) through cables.
2. An array integrated control device of a flywheel energy storage system according to claim 1, characterized in that: The two sets of current conversion units (32) in the low-pressure cabin (3) are arranged close to the inner walls of opposite sides of the container body (14), and the two sets of current conversion units (32) are spaced apart from the wall plate (4) of the low-pressure cabin (3), and a maintenance passage (34) is formed between the two sets of current conversion units (32).
3. An arrayed integrated control device for a flywheel energy storage system according to claim 2, characterized in that: The low-pressure cabin (3) is provided with a power distribution cabinet (33), which is connected to the low-voltage switch cabinet (31) through cables and located in the space formed between one set of current conversion units (32) and the wall plate (4) of the low-pressure cabin (3), and the low-voltage switch cabinet (31) is located in the space formed between the other set of current conversion units (32) and the wall plate (4) of the low-pressure cabin (3).
4. An array integrated control device of a flywheel energy storage system according to claim 3, characterized in that: The current conversion unit (32) comprises a current converter cabinet (320) and a load cabinet (321) arranged side by side, and the current converter cabinet (320) is connected to the low-voltage switch cabinet (31) and the load cabinet (321) through cables respectively. The power distribution cabinet (33) is located between the current converter cabinet (320) in one set of current conversion units (32) and the wall plate (4) of the low-pressure cabin (3), and the low-voltage switch cabinet (31) is located between the current converter cabinet (320) in the other set of current conversion units (32) and the wall plate (4) of the low-pressure cabin (3).
5. An array integrated control device of a flywheel energy storage system according to claim 2, characterized in that: The low-pressure cabin door (30) is arranged on the right side of the low-pressure cabin (3), and the maintenance passage (34) directly passes through the low-pressure cabin door (30). The bottom of the low-pressure cabin (3) is provided with a line maintenance well (12) for external wiring, and the line maintenance well (12) is located in the maintenance passage (34).
6. An array integrated control device of a flywheel energy storage system according to claim 1, characterized in that: The transformer (21) is arranged with the high-voltage side (210) facing the rear side of the transformer cabin (2) and the low-voltage side (211) facing the front side of the transformer cabin (2). The transformer cabin door (20) comprises a transformer cabin front door (201) and a transformer cabin rear door (202), and the inner side of the transformer cabin rear door (202) is further provided with a high-voltage isolation protection door (203).
7. An array integrated control device of a flywheel energy storage system according to claim 1, characterized in that: The high-pressure cabin door (10) comprises a high-pressure cabin front door, a high-pressure cabin rear door and a high-pressure cabin left side door arranged in the high-pressure cabin (1).
8. An array integrated control device of a flywheel energy storage system according to any one of claims 1-7, characterized in that: The container body (14) has an outer dimension of 7600 mm in length, 2400 mm in width, and 2900 mm in height.