Power distribution system for a magnetic confinement nuclear fusion device

Abstract

The application relates to the technical field of magnetic confinement nuclear fusion devices, and particularly relates to a power distribution system of a magnetic confinement nuclear fusion device. The power distribution system comprises a prefabricated power supply module, an annular medium-voltage power distribution network, a magnetic flux compensation assembly and a distributed control box. The prefabricated power supply module has a shell, a cascaded inverter unit, a high-frequency voltage boosting unit and a tokamak interface unit. The cascaded inverter unit is connected with the high-frequency voltage boosting unit, and the high-frequency voltage boosting unit is connected with the tokamak interface unit. The annular medium-voltage power distribution network is connected with the cascaded inverter unit. The magnetic flux compensation assembly is arranged around the tokamak interface unit and is connected with the high-frequency voltage boosting unit. The distributed control box is internally provided with an inverter waveform coordinator, an insulation state monitor and an interface contact resistance sensor. The inverter waveform coordinator is connected with the cascaded inverter unit, the insulation state monitor is in communication connection with the high-frequency voltage boosting unit, and the contact resistance sensor is embedded on the surface of a conductor of the tokamak interface unit. The application can reduce the site construction cost.

Description

Technical Field

[0001] This application relates to the field of magnetic confinement nuclear fusion device technology, specifically to a power distribution system for a magnetic confinement nuclear fusion device. Background Technology

[0002] In recent years, magnetic confinement controlled nuclear fusion technology has advanced rapidly. Multiple magnetic confinement controlled nuclear fusion devices have been built or upgraded in universities, research institutes, and enterprises, yielding numerous research results. The ultimate commercial goal of magnetic confinement fusion devices is to achieve long-term stable power output to the grid, similar to the stable power generation capacity of a thermal power plant.

[0003] Taking ITER (International Thermonuclear Experimental Reactor), CFETR (China Fusion Engineering Experimental Reactor), and EAST (Experimental Advanced Superconducting Tokamak) as examples, existing magnetic confinement controllable fusion devices basically use high-voltage substations (voltage levels of 110kV, 220kV, or even 400kV) as power sources to directly input power to the nuclear fusion device, providing electrical energy directly to various devices through high-voltage power supplies.

[0004] However, to date, various studies, taking the few large scientific facilities ITER and EAST as examples, have shown that the power supply of existing magnetic confinement fusion devices is basically converted in the form of high-voltage substations. This requires separate deployment in large sites or conversion through large equipment, which has disadvantages such as high construction requirements and high risk of breakdown. Utility Model Content

[0005] This application provides a power distribution system for a magnetic confinement nuclear fusion device, which replaces the traditional substation with a modular architecture and integrates magnetic flux compensation to at least solve one of the technical problems existing in the background art.

[0006] This application is achieved through the following technical solution:

[0007] A power distribution system for a magnetic confinement nuclear fusion device includes:

[0008] Multiple prefabricated power modules, each prefabricated power module having a housing and a cascaded inverter unit, a high-frequency boost unit, and a tokamak interface unit configured within the housing. The output terminal of the cascaded inverter unit is connected to the high-frequency boost unit, and the output terminal of the high-frequency boost unit is connected to the tokamak interface unit. The tokamak interface unit is used to connect to a magnetic confinement nuclear fusion device.

[0009] A ring-shaped medium-voltage power distribution network is electrically connected to the input terminal of the cascaded inverter unit.

[0010] A flux compensation component is arranged around the tokamak interface unit, and its input terminal is connected to the high-frequency boost unit.

[0011] The distributed control enclosure contains an inverter waveform coordinator, an insulation condition monitor, and an interface contact resistance sensor. The inverter waveform coordinator is connected to the cascaded inverter unit, the insulation condition monitor is communicatively connected to the high-frequency boost unit, and the contact resistance sensor is embedded on the conductor surface of the tokamak interface unit.

[0012] The power distribution system for the magnetic confinement fusion device provided in this application employs multiple prefabricated power modules, each integrating a cascaded inverter unit, a high-frequency boost unit, and a tokamak interface unit. This highly integrated design significantly reduces the large site layout required by traditional high-voltage substations, lowering construction costs and space requirements. A ring-shaped medium-voltage distribution network connects to the input terminals of the cascaded inverter units, ensuring efficient power transmission and distribution, and improving power supply reliability and flexibility. Magnetic flux compensation components are arranged around the tokamak interface unit, further optimizing the magnetic field distribution and enhancing system stability. The inverter waveform coordinator, insulation status monitor, and interface contact resistance sensor configured within the distributed control box can monitor the operating status of the power modules in real time, coordinate and control the inverter waveform, and monitor insulation status and contact resistance, thereby ensuring safe system operation and reducing the risk of breakdown. Overall, this power distribution system simplifies site layout and reduces costs while improving the operating efficiency and stability of the magnetic confinement fusion device, providing strong support for the commercial application of nuclear fusion technology.

[0013] In some optional embodiments, the high-frequency boost unit includes a main winding and a compensation winding wound in opposite directions on the same insulating frame. The main winding is electrically connected to the output terminal of the cascaded inverter unit, and the compensation winding is connected in series with the flux compensation component.

[0014] In some optional embodiments, the tokamak interface unit has an axial cooling channel, the inlet of which is connected to an external circulation pump, and the outlet pipe of which is equipped with a temperature feedback regulating valve. The tokamak terminals are embedded with stacked heat-conducting plates.

[0015] In some optional embodiments, the flux compensation component includes:

[0016] The hollow coil body is coaxially sleeved on the outside of the tokamak interface unit;

[0017] A magnetic field detection probe is mounted on the surface of the tokamak interface unit.

[0018] The dynamic compensation controller has its input end connected to the magnetic field detection probe and its output end connected to the compensation winding.

[0019] In some optional embodiments, the cascaded inverter unit has multiple sets of H-bridge power modules connected in series, and the heat dissipation substrate of the H-bridge power modules is thermally bonded to the inner wall of the housing of the prefabricated power module.

[0020] In some optional embodiments, the distributed control enclosure further includes:

[0021] The plasma signal input port is used to electrically connect to the control system of the magnetic confinement fusion device.

[0022] The tripping actuator is connected to the main circuit switch of the cascaded inverter unit.

[0023] In some optional embodiments, the bottom of the outer shell is provided with a depressurization hatch, the side wall of the outer shell is provided with an inspection panel, the inspection panel is embedded with an electromagnetic shielding observation window, the top of the outer shell is provided with a hoisting groove, and the hoisting groove is connected with an anti-detachment buckle.

[0024] In some alternative embodiments, the ring-shaped medium-voltage distribution network includes:

[0025] The segmented busbar has a plug-in connector at each end of the segment.

[0026] A cross-grounding ring, configured as a copper strip braided structure, is wrapped around the segmented busbar;

[0027] The fault isolation switch is mechanically connected to the segmented busbar and communicatively connected to the distributed control box.

[0028] In some optional embodiments, a mobile emergency interface compartment is also included, which includes a compartment body, input / output ports, and a power module.

[0029] The cabin is mechanically connected to ground-fixed facilities, and hydraulic locking rollers are provided at the bottom of the cabin;

[0030] The input / output ports are configured to prevent mis-insertion of irregularly shaped connectors;

[0031] The power module is electrically connected to the prefabricated power module.

[0032] In some alternative embodiments, the outer shell has a sandwich layer filled with aerogel.

[0033] Compared with the prior art, this application has the following advantages and beneficial effects:

[0034] The power distribution system for the magnetic confinement fusion device provided in this application employs multiple prefabricated power modules, each integrating a cascaded inverter unit, a high-frequency boost unit, and a tokamak interface unit. This highly integrated design significantly reduces the large site layout required by traditional high-voltage substations, lowering construction costs and space requirements. A ring-shaped medium-voltage distribution network connects to the input terminals of the cascaded inverter units, ensuring efficient power transmission and distribution, and improving power supply reliability and flexibility. Magnetic flux compensation components are arranged around the tokamak interface unit, further optimizing the magnetic field distribution and enhancing system stability. The inverter waveform coordinator, insulation status monitor, and interface contact resistance sensor configured within the distributed control box can monitor the operating status of the power modules in real time, coordinate and control the inverter waveform, and monitor insulation status and contact resistance, thereby ensuring safe system operation and reducing the risk of breakdown. Overall, this power distribution system simplifies site layout and reduces costs while improving the operating efficiency and stability of the magnetic confinement fusion device, providing strong support for the commercial application of nuclear fusion technology. Attached Figure Description

[0035] The accompanying drawings, which are included to provide a further understanding of the embodiments of this application and form part of this application, do not constitute a limitation on the embodiments of this application. In the drawings:

[0036] Figure 1 System block diagram provided for embodiments of this application;

[0037] Figure 2 This is a schematic diagram of the system framework connection provided in the embodiments of this application.

[0038] The attached diagram shows the markings and corresponding component names:

[0039] 1-Cascaded inverter unit, 2-High-frequency boost unit, 21-Insulation frame, 22-Main winding, 23-Compensation winding, 3-Tokamak interface unit, 4-Ring medium-voltage distribution network, 41-Segmented busbar, 42-Cross-grounding ring, 43-Fault isolation switch, 5-Fluid flux compensation component, 51-Hollow coil body, 52-Magnetic field detection probe, 53-Dynamic compensation controller, 6-Inverter waveform coordinator, 7-Insulation status detector, 8-Interface contact resistance sensor, 9-External circulation pump, 10-Temperature feedback regulating valve. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this application are only for explaining this application and are not intended to limit this application.

[0041] like Figures 1-2As shown in the figure, this application provides a power distribution system for a magnetic confinement fusion device. The power distribution system includes prefabricated power modules, a ring-shaped medium-voltage power distribution network 4, a magnetic flux compensation component 5, and a distributed control enclosure. Multiple prefabricated power modules are included, each having a housing and a cascaded inverter unit 1, a high-frequency boost unit 2, and a tokamak interface unit 3 configured within the housing. The output of the cascaded inverter unit 1 is connected to the high-frequency boost unit 2, and the output of the high-frequency boost unit 2 is connected to the tokamak interface unit 3. Interface unit 3 is used to connect to the magnetic confinement nuclear fusion device; the ring medium-voltage power distribution network 4 is electrically connected to the input of the cascaded inverter unit 1; the magnetic flux compensation component 5 is arranged around the tokamak interface unit 3, and its input is connected to the high-frequency boost unit 2; the distributed control box is equipped with an inverter waveform coordinator 6, an insulation status monitor and an interface contact resistance sensor 8, wherein the inverter waveform coordinator 6 is connected to the cascaded inverter unit 1, the insulation status monitor is communicatively connected to the high-frequency boost unit 2, and the contact resistance sensor is embedded on the conductor surface of the tokamak interface unit 3.

[0042] The power distribution system for the magnetic confinement fusion device provided in this application employs multiple prefabricated power modules, each integrating a cascaded inverter unit 1, a high-frequency boost unit 2, and a tokamak interface unit 3. This highly integrated design significantly reduces the large site layout required by traditional high-voltage substations, lowering construction costs and space requirements. A ring-shaped medium-voltage distribution network 4 is connected to the input of the cascaded inverter unit 1, ensuring efficient power transmission and distribution, and improving the reliability and flexibility of power supply. Magnetic flux compensation components 5 are arranged around the tokamak interface unit 3, further optimizing the magnetic field distribution and enhancing system stability. The inverter waveform coordinator 6, insulation status monitor, and interface contact resistance sensor 8, configured within the distributed control box, can monitor the operating status of the power modules in real time, coordinate and control the inverter waveform, and monitor insulation status and contact resistance, thereby ensuring safe system operation and reducing the risk of breakdown. Overall, this power distribution system simplifies site layout and reduces costs while improving the operating efficiency and stability of the magnetic confinement fusion device, providing strong support for the commercial application of nuclear fusion technology.

[0043] In some optional embodiments, the high-frequency boost unit 2 includes a main winding 22 and a compensation winding 23 wound in opposite directions on the same insulating frame 21. The main winding 22 is electrically connected to the output terminal of the cascaded inverter unit 1, and the compensation winding 23 is connected in series with the magnetic flux compensation component 5. This configuration can effectively counteract the influence of magnetic field changes, improve the stability and uniformity of the magnetic field, optimize power transmission efficiency, and ensure the stability and reliability of the high-frequency boost process.

[0044] In some optional embodiments, the tokamak interface unit 3 has an axial cooling channel, the inlet of which is connected to an external circulation pump 9, and the outlet pipe of the channel is equipped with a temperature feedback regulating valve 10, wherein the tokamak terminals are embedded with stacked heat-conducting plates.

[0045] In this embodiment, the external circulation pump 9 drives the coolant to circulate within the axial cooling channel, carrying away the heat generated by the interface unit during operation. The temperature feedback regulating valve 10 monitors the coolant temperature in the outlet pipe in real time and automatically adjusts the valve opening according to temperature changes, precisely controlling the coolant flow rate and volume to ensure stable operation of the interface unit within a suitable temperature range. Simultaneously, the stacked heat-conducting fins are embedded at the tokamak terminals, further increasing the heat conduction area, improving heat transfer efficiency, and accelerating the transfer of heat from the terminals to the cooling channel. This better reduces the temperature of the interface unit, ensuring its performance and reliability, and extending its service life.

[0046] In some optional embodiments, the flux compensation assembly 5 includes a hollow coil body 51, a magnetic field detection probe 52, and a dynamic compensation controller 53; the hollow coil body 51 is coaxially sleeved on the outside of the tokamak interface unit 3; the magnetic field detection probe 52 is attached to the surface of the tokamak interface unit 3; the input end of the dynamic compensation controller 53 is connected to the magnetic field detection probe 52, and the output end is connected to the compensation winding 23.

[0047] In this embodiment, the magnetic field detection probe 52 monitors the changes in the magnetic field around the interface unit in real time, converts the magnetic field information into an electrical signal and transmits it to the dynamic compensation controller 53. The controller calculates and outputs a compensation current to the compensation winding 23 based on these signals. The compensation winding 23 is wound in the opposite direction to the main winding 22 on the same insulating frame 21. After being energized, it generates a magnetic field that is opposite to the original magnetic field change. Through the action of the hollow coil body 51, it effectively cancels or weakens the magnetic field fluctuations and distortions, realizes dynamic magnetic flux compensation, improves the stability and uniformity of the magnetic field, enhances the system's anti-interference ability, optimizes the power transmission efficiency, creates a more stable magnetic field environment for the magnetic confinement nuclear fusion device, and ensures the reliable operation of the system.

[0048] In some optional embodiments, the cascaded inverter unit 1 has multiple sets of H-bridge power modules connected in series, and the heat dissipation substrate of the H-bridge power modules is thermally bonded to the inner wall of the prefabricated power module housing.

[0049] In this embodiment, multiple sets of H-bridge power modules connected in series can effectively improve the output voltage level and power capacity of the inverter unit, meeting the high voltage and high current requirements of the magnetic confinement nuclear fusion device. The heat dissipation substrate of the H-bridge power module is thermally bonded to the inner wall of the prefabricated power module housing, forming an efficient heat conduction path. This ensures that the heat generated by the module during operation can be quickly conducted to the housing and dissipated into the surrounding environment, effectively reducing the operating temperature of the H-bridge power module, improving its operational stability and reliability, extending its service life, and thus ensuring the stable operation of the entire power distribution system.

[0050] In some optional embodiments, the distributed control enclosure also includes a plasma signal input port and a tripping actuator; the plasma signal input port is used to electrically connect to the control system of the magnetic confinement nuclear fusion device; the tripping actuator is drivenly connected to the main circuit switch of the cascaded inverter unit 1.

[0051] In this embodiment, the plasma signal input port, after being connected to the control system of the magnetic confinement fusion device, can easily receive plasma status signals in real time, thereby achieving precise control of the power module output and ensuring that it matches the plasma operating state. The tripping actuator is connected to the main circuit switch of the cascaded inverter unit 1, which can quickly cut off the main circuit of the power module in case of emergency or system failure, protecting the equipment and personnel safety, while enhancing the reliability and safety of system operation and ensuring the stable operation of the magnetic confinement fusion device.

[0052] In some optional embodiments, a pressure relief hatch is provided at the bottom of the outer shell to release pressure when the internal pressure is too high, prevent damage to the outer shell, and provide a rapid pressure relief channel in emergencies; an inspection panel is provided on the side wall of the outer shell to facilitate the inspection and maintenance of internal equipment by technicians. The inspection panel is embedded with an electromagnetic shielded observation window, which allows observation of the internal operating status without opening the outer shell, while preventing electromagnetic interference leakage; a lifting slot is provided at the top of the outer shell for easy lifting and handling. The lifting slot is connected with anti-detachment buckles to prevent the outer shell from accidentally falling off during lifting, thereby improving handling safety.

[0053] In some alternative embodiments, the ring-shaped medium-voltage distribution network 4 includes a segmented busbar 41, a cross-grounding ring 42, and a fault isolation switch 43; each segment of the segmented busbar 41 is provided with a plug-in connector at its end; the cross-grounding ring 42 is configured as a copper strip braided structure and covers the segmented busbar 41; the fault isolation switch 43 is mechanically connected to the segmented busbar 41 and communicatively connected to the distributed control box.

[0054] In this embodiment, each segment of the segmented busbar 41 is equipped with a plug-in connector at its end for easy connection and expansion; the cross-grounding ring 42 adopts a copper strip braided structure and covers the segmented busbar 41, which can effectively reduce the grounding resistance, improve the stability and reliability of the grounding system, and at the same time have good flexibility and corrosion resistance; the fault isolation switch 43 is mechanically connected to the segmented busbar 41 and communicatively connected to the distributed control box, which can quickly isolate the faulty segment when a fault is detected, prevent the fault from expanding, and ensure the normal operation of the system.

[0055] In some optional embodiments, a mobile emergency interface compartment is also included, comprising a compartment body, input / output ports, and a power module; the compartment body is mechanically connected to ground-fixed facilities, and hydraulic locking rollers are provided at the bottom of the compartment body; the input / output ports are configured as anti-misinsertion irregular connectors; and the power module is electrically connected to a prefabricated power module.

[0056] In this embodiment, the cabin is mechanically connected to the ground-based fixed facilities, and the hydraulic locking rollers at the bottom enable rapid movement while ensuring the stability of the equipment during operation. The input and output ports adopt an anti-misinsertion irregular connector design, which effectively avoids connection errors and ensures the accuracy and reliability of the connection. The power module is electrically connected to the prefabricated power module, which can quickly connect to the system in an emergency to provide emergency power for the magnetic confinement nuclear fusion device, thereby enhancing the emergency response capability and power supply reliability of the entire power distribution system.

[0057] In some alternative embodiments, the outer shell has a sandwich layer filled with aerogel.

[0058] In this embodiment, aerogel is an ultralight material with a nanoporous structure, which has excellent thermal insulation properties. It can effectively reduce the transfer of external heat to the interior of the shell, reduce the impact of changes in ambient temperature on the internal equipment, and prevent internal heat loss. This helps to maintain the stability of the internal temperature of the shell and reduce the heat dissipation requirements of the equipment. In addition, aerogel also has a certain sound insulation effect, which can reduce the impact of noise generated during equipment operation on the external environment.

[0059] The specific embodiments described above illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Although the description of this application is presented in conjunction with some embodiments, this does not mean that the features of this application are limited to this embodiment. On the contrary, the purpose of describing the application in conjunction with embodiments is to cover other options or modifications that may be derived based on the claims of this application. To provide a thorough understanding of this application, many specific details are included in the above description. This application may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this application, some specific details will be omitted in the description. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0060] It should be noted that in this specification, similar reference numerals and letters in the above figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this application, it should be noted that unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0061] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A power distribution system for a magnetic confinement nuclear fusion device, characterized in that, include: Multiple prefabricated power modules, each prefabricated power module having a housing and a cascaded inverter unit (1), a high-frequency boost unit (2), and a tokamak interface unit (3) configured within the housing. The output terminal of the cascaded inverter unit (1) is connected to the high-frequency boost unit (2), and the output terminal of the high-frequency boost unit (2) is connected to the tokamak interface unit (3). The tokamak interface unit (3) is used to connect to a magnetic confinement nuclear fusion device. A ring-shaped medium-voltage power distribution network (4) is electrically connected to the input terminal of the cascaded inverter unit (1). A flux compensation component (5) is arranged around the tokamak interface unit (3), and its input end is connected to the high-frequency boost unit (2); The distributed control box is equipped with an inverter waveform coordinator (6), an insulation status monitor and an interface contact resistance sensor (8). The inverter waveform coordinator (6) is connected to the cascaded inverter unit (1), the insulation status monitor is communicatively connected to the high-frequency boost unit (2), and the contact resistance sensor is embedded on the conductor surface of the tokamak interface unit (3).

2. The power distribution system of the magnetic confinement nuclear fusion device according to claim 1, characterized in that, The high-frequency boost unit (2) includes a main winding (22) and a compensation winding (23) wound in opposite directions on the same insulating frame (21). The main winding (22) is electrically connected to the output terminal of the cascaded inverter unit (1), and the compensation winding (23) is connected in series with the magnetic flux compensation component (5).

3. The power distribution system of the magnetic confinement nuclear fusion device according to claim 2, characterized in that, The tokamak interface unit (3) has an axial cooling channel. The inlet of the axial cooling channel is connected to an external circulation pump (9), and the outlet pipe of the channel is equipped with a temperature feedback regulating valve (10). The tokamak terminals are inlaid with stacked heat-conducting plates.

4. The power distribution system of the magnetic confinement nuclear fusion device according to claim 3, characterized in that, The magnetic flux compensation component (5) includes: The hollow coil body (51) is coaxially sleeved on the outside of the tokamak interface unit (3); A magnetic field detection probe (52) is mounted on the surface of the tokamak interface unit (3); The dynamic compensation controller (53) has its input end connected to the magnetic field detection probe (52) and its output end connected to the compensation winding (23).

5. The power distribution system of the magnetic confinement nuclear fusion device according to claim 4, characterized in that, The cascaded inverter unit (1) has multiple sets of H-bridge power modules connected in series, and the heat dissipation substrate of the H-bridge power module is thermally bonded to the inner wall of the prefabricated power module housing.

6. The power distribution system of the magnetic confinement nuclear fusion device according to claim 5, characterized in that, The distributed control enclosure also includes: The plasma signal input port is used to electrically connect to the control system of the magnetic confinement fusion device. The tripping actuator is connected to the main circuit switch of the cascaded inverter unit (1).

7. The power distribution system of the magnetic confinement nuclear fusion device according to claim 6, characterized in that, The bottom of the outer shell is provided with a depressurization hatch, the side wall of the outer shell is provided with an inspection panel, the inspection panel is embedded with an electromagnetic shielding observation window, and the top of the outer shell is provided with a hoisting groove, the hoisting groove is connected with an anti-detachment buckle.

8. The power distribution system of the magnetic confinement nuclear fusion device according to claim 1, characterized in that, The ring-shaped medium-voltage power distribution network (4) includes: The segmented busbar (41) has a plug-in connector at the end of each segment. A cross-grounding ring (42) is configured as a copper strip braided structure and covers the segmented busbar (41); The fault isolation switch (43) is mechanically connected to the segmented busbar (41) and communicatively connected to the distributed control box.

9. The power distribution system of the magnetic confinement nuclear fusion device according to claim 8, characterized in that, It also includes a mobile emergency interface cabin, which includes a cabin body, input / output ports and a power module; The cabin is mechanically connected to ground-fixed facilities, and hydraulic locking rollers are provided at the bottom of the cabin; The input / output ports are configured to prevent mis-insertion of irregularly shaped connectors; The power module is electrically connected to the prefabricated power module.

10. The power distribution system of the magnetic confinement nuclear fusion device according to claim 1, characterized in that, The outer shell has a sandwich layer filled with aerogel.

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