High-power high-voltage power supply supporting device and high-power high-voltage power supply system

Abstract

The utility model discloses a high-power high-voltage power supply supporting device and a high-power high-voltage power supply system. A plurality of high-power high-voltage power supplies are arranged in a hollow insulating bracket; the bracket shielding ring is used for performing electric field optimization on the hollow insulating bracket; the plurality of bracket shielding rings are arranged on the surface of the hollow insulating bracket; the insulation output module is used for insulating the output end of the high-power high-voltage power supply; on the basis of a traditional high-power high-voltage power supply supporting device, structural improvement is carried out, electric field optimization is carried out on the edge of the power supply supporting device by installing the support shielding ring, and the electric field distortion degree is reduced; meanwhile, the insulation output module is additionally arranged to insulate the output end of the high-power high-voltage power supply, and the purpose of reducing electric field distortion is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of high-power and high-voltage power supplies, and in particular to a high-power and high-voltage power supply supporting device and a high-power and high-voltage power supply system. Background Art

[0002] The China Tokamak Experimental Reactor (HL-3) is a newly built high-parameter tokamak facility in my country. To achieve fusion reactions in a tokamak, the plasma must be heated to the fusion ignition temperature, and the auxiliary heating system plays a crucial role in raising the plasma temperature. The auxiliary heating system consists of multiple components, including a high-voltage power supply consisting of multiple rectifier modules connected in series. Through real-time control of the modules, a stable high voltage is output. Taking into account the insulation characteristics of the power modules, each high-voltage unit is equipped with an insulating bracket. The insulating bracket is made of epoxy resin and consists of a grid of epoxy plates to house the power modules. Each insulating bracket is supported by several ceramic insulators.

[0003] As high-voltage power supplies increase in voltage, the voltage levels experienced by various devices also gradually increase, making abnormalities such as corona and partial discharge more likely to occur. The electric field strength of the power module is most unevenly distributed at the junction of the bracket's various surfaces and at the edges of each power module. Utility Model Content

[0004] The technical problem to be solved by the present invention is: as the voltage level of the high-voltage power supply increases, the voltage level borne by each device also gradually increases, making it easy for abnormal phenomena such as corona or partial discharge to occur, and the electric field strength of the power module is most unevenly distributed at the junction of the various surfaces of the bracket and at the edge of each power module; the purpose of the present invention is to provide a high-power high-voltage power supply support device and a high-power high-voltage power supply system, which, on the basis of a traditional high-power high-voltage power supply support device, makes structural improvements, optimizes the electric field at the edge of the power supply support device by installing a bracket shielding ring, and reduces the degree of electric field distortion; at the same time, an insulating output module is added to insulate the output end of the high-power high-voltage power supply, thereby achieving the purpose of reducing electric field distortion.

[0005] The utility model is achieved through the following technical solutions:

[0006] This solution provides a high-power, high-voltage power supply support device, including:

[0007] A hollow insulating bracket is used to support a high-power and high-voltage power supply. Multiple high-power and high-voltage power supplies are installed in the hollow insulating bracket.

[0008] A bracket shielding ring is used to optimize the electric field of the hollow insulating bracket; multiple bracket shielding rings are installed on the surface of the hollow insulating bracket;

[0009] The insulating output module is used to insulate the output end of the high-power high-voltage power supply; the insulating output module is connected to the output end of the high-power high-voltage power supply.

[0010] Working principle of this solution: As the voltage level of the high-voltage power supply increases, the voltage level that each device bears also gradually increases, which makes it easy for abnormal phenomena such as corona or partial discharge to occur, and the electric field strength of the power module is most unevenly distributed at the junction of the various surfaces of the bracket and at the edge of each power module; the purpose of this utility model is to provide a high-power high-voltage power supply support device and a high-power high-voltage power supply system. On the basis of the traditional high-power high-voltage power supply support device, structural improvements are made. By installing a bracket shielding ring, the electric field at the edge of the power supply support device is optimized to reduce the degree of electric field distortion; at the same time, an insulating output module is added to insulate the output end of the high-power high-voltage power supply to achieve the purpose of reducing electric field distortion.

[0011] A further optimized solution is that the hollow insulating bracket is a cuboid with a length a, a width b, and a height h, wherein h>a>b.

[0012] A further optimization solution is that multiple shielding rings are evenly installed on surface A and surface B of the hollow insulating bracket; surface A and surface B are opposite surfaces, where surface A is a rectangular surface composed of the length a and height h of a cuboid.

[0013] A further optimization solution is that the multiple bracket shielding rings are arranged at equal intervals along the edges of surface A and surface B, and the bracket shielding rings arranged on surface A correspond one-to-one to the positions of the bracket shielding rings arranged on surface B; the spacing between the bracket shielding rings arranged along the long direction of surface A / surface B is d1; the spacing between the bracket shielding rings arranged along the high direction of surface A / surface B belongs to the first distance range.

[0014] A further optimization solution is to also include a shielding ring connecting rod made of the same material as the bracket shielding ring; the shielding ring connecting rod is used to connect two bracket shielding rings with corresponding positions on surface A and surface B, and the shielding ring connecting rod makes the distance between the two bracket shielding rings and the bracket shielding ring belong to the second distance range.

[0015] A further optimization solution is to further include an insulating support rod, which is used to support the shielding ring connecting rod so that the distance between the shielding ring connecting rod and the bracket shielding ring is at least h1; one end of the insulating support rod is detachably connected to the shielding ring connecting rod, and the other end is detachably connected to the hollow insulating bracket.

[0016] A further optimized solution is that the bracket shielding ring is a ring structure surrounded by aluminum hollow tubes.

[0017] A further optimized solution is that the bracket shielding ring is a rectangular ring, and the four corners of the rectangular ring are arc-shaped corners.

[0018] A further optimized solution is that the insulating output port is a spherical joint.

[0019] This solution also provides a high-power and high-voltage power supply system, including the above-mentioned high-power and high-voltage power supply support device.

[0020] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0021] The utility model provides a high-power high-voltage power supply support device and a high-power high-voltage power supply system. On the basis of the traditional high-power high-voltage power supply support device, the utility model makes structural improvements. By installing a bracket shielding ring, the electric field at the edge of the power supply support device is optimized to reduce the degree of electric field distortion. At the same time, an insulating output module is added to insulate the output end of the high-power high-voltage power supply to achieve the purpose of reducing electric field distortion. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the accompanying drawings:

[0023] Figure 1 This is a structural diagram of a high-power, high-voltage power supply support device;

[0024] Figure 2 This is a schematic diagram of the bracket shielding ring structure;

[0025] Figure 3 This is a schematic diagram of the first side of the bracket shielding ring structure;

[0026] Figure 4 This is a second side view of the bracket shielding ring structure;

[0027] Figure 5 This is a schematic diagram of the bracket shielding ring structure assembly;

[0028] Figure 6 This is a structural diagram of the insulation output module.

[0029] Markings and corresponding parts names in the accompanying drawings:

[0030] 1-Hollow insulating bracket; 2-Ceramic insulator support; 3-Bracket shielding ring; 4-Shielding ring connecting rod; 5-Insulating support rod; 6-Spherical joint; 7. Power module output terminal. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The schematic implementation methods of the present invention and their descriptions are only used to explain the present invention and are not intended to limit the present invention.

[0032] As the voltage level of high-voltage power supplies increases, the voltage levels experienced by various devices also gradually increase, making abnormal phenomena such as corona and partial discharge more likely to occur. The electric field strength of the power module is most unevenly distributed at the intersection of the various surfaces of the bracket and at the edges of each power module. In view of this, the present invention provides the following embodiments to address the aforementioned technical issues:

[0033] Example 1

[0034] This embodiment 1 provides a high-power high-voltage power supply support device, such as Figure 1 As shown, including:

[0035] The hollow insulating bracket 1 is used to support a high-power and high-voltage power supply. Multiple high-power and high-voltage power supplies are installed in the hollow insulating bracket. The bottom of the hollow insulating bracket 1 is supported by multiple ceramic insulator pillars.

[0036] The hollow insulating support is a cuboid with a length a, a width b, and a height h, wherein h>a>b.

[0037] A plurality of shielding rings are evenly mounted on surface A and surface B of the hollow insulating bracket; surface A and surface B are opposite surfaces, wherein surface A is a rectangular surface consisting of a length a and a height h of a cuboid.

[0038] The multiple bracket shielding rings are arranged at equal intervals along the edges of surface A and surface B, and the bracket shielding rings arranged on surface A correspond one-to-one to the positions of the bracket shielding rings arranged on surface B; the spacing between the bracket shielding rings arranged along the long direction of surface A / surface B is d1; the spacing between the bracket shielding rings arranged along the high direction of surface A / surface B belongs to the first distance range.

[0039] The high-power high-voltage power supply support device includes a bracket shielding ring 3, such as Figure 2-5 As shown, it is used to optimize the electric field of the hollow insulating bracket 1; multiple bracket shielding rings 3 are installed on the surface of the hollow insulating bracket 1;

[0040] The high-power high-voltage power supply support device includes an insulating output module, such as Figure 6 As shown, the insulating output module of this embodiment is a spherical wiring ball head 6 set on the output terminal 7 of the power module; it is used to insulate the output end of the high-power high-voltage power supply; the insulating output module is connected to the output end of the high-power high-voltage power supply.

[0041] The high-power high-voltage power supply support device also includes a shielding ring connecting rod 4 made of the same material as the bracket shielding ring; the shielding ring connecting rod 4 is used to connect two bracket shielding rings 3 with corresponding positions on surface A and surface B, and the shielding ring connecting rod 4 makes the distance between the two bracket shielding rings 3 and the bracket shielding ring respectively fall within the second distance range.

[0042] The high-power high-voltage power supply support device also includes an insulating support rod 5, which is used to support the shielding ring connecting rod 4 so that the distance between the shielding ring connecting rod 4 and the bracket shielding ring 3 is at least h1; one end of the insulating support rod 5 can be detachably connected to the shielding ring connecting rod 4, and the other end can be detachably connected to the hollow insulating bracket 1.

[0043] During the specific implementation process, the same number of bracket shielding rings 3 are set on the front and back of the hollow insulating bracket 1. The bracket shielding rings 3 on the two sides are symmetrically distributed along the longitudinal section of the bracket. Each pair of symmetrically distributed bracket shielding rings 3 are welded together by a shielding ring connecting rod 4. In this way, equalized voltage shielding can be provided for areas with uneven electric field distribution at the edge of the bracket.

[0044] In this embodiment, the dimensions of the bracket shielding ring 3, the shielding ring connecting rod 4, and the insulating support rod 5 are first determined based on the volume of the hollow insulating bracket 1. The bracket shielding ring 3 is required to wrap around the edge of the hollow insulating bracket 1. The length of the shielding ring connecting rod 4 should exceed the width of the hollow insulating bracket 1 by 400mm to 500mm, and the length of the insulating support rod 5 should be 50mm to 100mm. The shielding ring connecting rod 4 is fixed to the surface of the hollow insulating bracket 1, so that the bracket shielding ring 3 and the hollow insulating bracket 1 are separated by a certain distance.

[0045] The bracket shielding ring is a ring structure surrounded by aluminum hollow tubes.

[0046] The bracket shielding ring is a rectangular ring with four curved corners. Each bracket shielding ring 3 can be welded together from multiple sections of thin-walled aluminum hollow metal tubes. All bracket shielding rings wrapped around the hollow insulating bracket 1 have identical shapes and dimensions. The bracket shielding ring 3 has a smooth, burr-free surface and a defined corner radius.

[0047] Connect the shielding ring connecting rod 4 to the insulating support rod 5 with screws, make holes at 1 / 2 the width of the four upper, lower, left and right sides of the hollow insulating bracket 1, and fix the insulating support rod 5 to the bracket surface with screws. The spacing between two adjacent shielding ring connecting rods 4 on the same surface must be kept consistent. The insulating support rod 5 can separate the aluminum bracket shielding ring 3 from the power module to form a certain distance, thereby improving the insulation level of the entire system.

[0048] The insulated output port is a ball joint 6, which is fixed to the power module output terminal 7 with screws to avoid electric field distortion at the positive and negative terminals of the power supply.

[0049] This embodiment optimizes the electric field at the edge of the hollow insulating bracket by installing a bracket shielding ring, thereby reducing the degree of electric field distortion; and adopts a bracket shielding ring with a smooth surface, a wheel-shaped side structure, and symmetrical arrangement on both sides, as well as an insulating output module set at the power module (a spherical wiring ball head is used at the output connector), which can make the electric field distribution at the edge of the hollow insulating bracket and the power module more uniform, thereby achieving the purpose of improving the electric field distribution.

[0050] The bracket shielding ring of this embodiment adopts a design in which multiple small-volume shielding rings are used to achieve a shielding effect. Compared with the traditional large-size pressure equalizing device, its volume is greatly reduced and the processing difficulty is reduced.

[0051] In this embodiment, the shielding ring connecting rod and the two bracket shielding rings are fixed by welding, which can enhance the structural stability and reduce the installation workload.

[0052] In this embodiment, the connecting rod is detachably connected to the surface of the bracket by screws through an insulating support rod, which is convenient for disassembly and maintenance.

[0053] This embodiment uses a shielding ring with a certain fillet radius, which can further enhance the shielding effect on the electric field distortion at the edge of the power module while improving the structural strength of the shielding ring itself.

[0054] This embodiment improves the electric field distribution at the edge of the module by using a spherical joint without changing the shape of the positive and negative terminal output interfaces of the power module, and has high versatility.

[0055] Example 2

[0056] This embodiment provides a high-power and high-voltage power supply system, including a high-power and high-voltage power supply supporting device according to embodiment 1.

[0057] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only a specific implementation method of the utility model and is not intended to limit the scope of protection of the utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A high-power high-voltage power supply support device, characterized in that: include: A hollow insulating bracket is used to support a high-power and high-voltage power supply. Multiple high-power and high-voltage power supplies are installed in the hollow insulating bracket. Bracket shielding ring, used for electric field optimization of hollow insulating brackets; A plurality of bracket shielding rings are installed on the surface of the hollow insulating bracket; The insulating output module is used to insulate the output end of the high-power high-voltage power supply; the insulating output module is connected to the output end of the high-power high-voltage power supply.

2. A high-power high-voltage power supply support device according to claim 1, characterized in that: The hollow insulating support is a cuboid with a length a, a width b, and a height h, wherein h>a>b.

3. A high-power high-voltage power supply support device according to claim 2, characterized in that: A plurality of shielding rings are evenly mounted on surface A and surface B of the hollow insulating bracket; surface A and surface B are opposite surfaces, wherein surface A is a rectangular surface consisting of a length a and a height h of a cuboid.

4. A high-power high-voltage power supply support device according to claim 3, characterized in that: The plurality of bracket shielding rings are arranged at equal intervals along the edges of surface A and surface B, and the bracket shielding rings arranged on surface A correspond one to one with the bracket shielding rings arranged on surface B; The spacing between the bracket shielding rings arranged along the long direction of surface A / surface B is d1; The spacing between the bracket shielding rings arranged along the height direction of surface A / surface B belongs to the first distance range.

5. A high-power high-voltage power supply support device according to claim 4, characterized in that: It also includes a shielding ring connecting rod made of the same material as the bracket shielding ring; the shielding ring connecting rod is used to connect two bracket shielding rings with corresponding positions on surface A and surface B, and the shielding ring connecting rod makes the distance between the two bracket shielding rings and the bracket shielding ring belong to the second distance range.

6. A high-power high-voltage power supply support device according to claim 5, characterized in that: It also includes an insulating support rod, which is used to support the shielding ring connecting rod so that the distance between the shielding ring connecting rod and the bracket shielding ring is at least h1; one end of the insulating support rod is detachably connected to the shielding ring connecting rod, and the other end is detachably connected to the hollow insulating bracket.

7. The high-power and high-voltage power supply support device according to claim 1, characterized in that: The bracket shielding ring is a ring structure surrounded by aluminum hollow tubes.

8. The high-power and high-voltage power supply support device according to claim 7, characterized in that: The bracket shielding ring is a rectangular ring, and the four corners of the rectangular ring are arc-shaped corners.

9. The high-power and high-voltage power supply support device according to claim 1, characterized in that: The insulating output port is a ball joint.

10. A high-power, high-voltage power supply system, characterized in that: A high-power and high-voltage power supply supporting device comprising the device described in any one of claims 1 to 9.

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