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Winding structure of a superconducting current-limiting transformer

A technology of superconducting current limiting and winding structure, which is applied in the direction of transformers, the usage of superconducting elements, fixed transformers or mutual inductance, etc., can solve the problems of poor heat dissipation and difficult recovery of windings, and achieve large current limiting depth, smooth heat dissipation channels, Good cooling effect

Active Publication Date: 2022-03-08
INST OF ELECTRICAL ENG CHINESE ACAD OF SCI +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the disadvantages of the prior art, such as poor heat dissipation of windings and difficult recovery after quenching, etc., and propose a winding structure of a superconducting current-limiting transformer

Method used

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  • Winding structure of a superconducting current-limiting transformer
  • Winding structure of a superconducting current-limiting transformer
  • Winding structure of a superconducting current-limiting transformer

Examples

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Embodiment Construction

[0021] The winding structure of the superconducting current-limiting transformer of the present invention will be described below in conjunction with this embodiment.

[0022] like figure 1 As shown, the high-voltage and low-voltage windings of the superconducting current-limiting transformer of the present invention adopt a cylindrical structure, and the high-voltage winding is coaxially nested outside the low-voltage winding.

[0023] like figure 2 As shown, the high-voltage winding of the superconducting current-limiting transformer of the present invention adopts a multi-layer cylindrical structure, and heat dissipation channels are left between the layers.

[0024] like image 3 As shown, the low-voltage winding of the superconducting current-limiting transformer of the present invention adopts a segmented multi-layer cylindrical structure, and heat dissipation channels are left between layers.

[0025] The winding of the superconducting current-limiting transformer o...

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Abstract

A winding structure of a superconducting current-limiting transformer is composed of an n1-layer cylindrical high-voltage winding and a plurality of n2-layer cylindrical low-voltage windings in parallel, n1>=2, n2>=2. Among them, insulating strips are placed at equal intervals along the circumference between the layers of the high-voltage winding and the low-voltage winding, and at the same time play the role of interlayer insulation and heat dissipation. The end flanges of the high-voltage winding and the low-voltage winding both adopt a star arm structure to play the role of heat dissipation at the end. Both high voltage winding and low voltage winding are made of stainless steel reinforced YBCO superconducting strip. When the power system works normally, the coil winding of the superconducting transformer is in a superconducting state with zero resistance. When the power system fails, the high-voltage winding and the low-voltage winding rapidly quench, thereby realizing the function of limiting the fault current.

Description

technical field [0001] The invention relates to a winding of a superconducting current-limiting transformer. Background technique [0002] The superconducting current-limiting transformer combines the functions and technical advantages of superconducting transformers and superconducting current limiters. Capabilities can also help improve the stability of the grid, and can play a unique role in areas such as large-capacity power transmission, smart urban grids, and FACTS. The superconducting current-limiting transformer realizes the composite function of superconducting power equipment, and has become one of the hot spots in the research and development of superconducting technology in the world. [0003] Countries such as Germany, Japan, the United States and Russia have successively carried out relevant research on superconducting current-limiting transformers, and developed test prototypes. In China, the Institute of Electrical Engineering of the Chinese Academy of Scie...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F36/00H01F6/04H01F6/06H02H9/02
CPCH01F36/00H01F6/04H01F6/06H02H9/023Y02E40/60
Inventor 邱清泉罗朝志韦德福郭铁王冠宇张宏杰
Owner INST OF ELECTRICAL ENG CHINESE ACAD OF SCI