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A Hybrid DC Circuit Breaker Valve Structure with Square Arrangement

A DC circuit breaker and hybrid technology, used in cable installation, emergency protection circuit devices, conductor discharge/electricity consumption, etc. The effect of overall strength and stability

Active Publication Date: 2019-02-22
NR ELECTRIC CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the working principle of the hybrid circuit breaker, it generally includes IGBT valve tower components, fast switch components, and on-state branch components. Irregular state, large volume and heavy weight, which is not conducive to the inspection and maintenance of the inlet and outlet lines in the valve hall
[0004] CN201610357836.6 discloses a DC circuit breaker valve tower structure, but it does not include fast mechanical switch components, and only describes the IGBT valve assembly

Method used

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  • A Hybrid DC Circuit Breaker Valve Structure with Square Arrangement
  • A Hybrid DC Circuit Breaker Valve Structure with Square Arrangement
  • A Hybrid DC Circuit Breaker Valve Structure with Square Arrangement

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Embodiment Construction

[0037] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0038] Figure 1 to Figure 6 A complete hybrid circuit breaker embodiment provided by the present invention including fast mechanical switches, on-state valves, flow limiting valve towers, and lightning arrester towers is shown in sequence. Obviously, its tower structure with a regular square outline makes it It has obvious advantages of small footprint and simple layout.

[0039] In this embodiment, the design voltage level of the current-limiting valve assembly is 25kV, and two sets of sub-units with a voltage level of 50kV are implemented in a series connection. Furthermore, the structure of the current-limiting valve on the same layer is realized by two sets of the same 50kV voltage level components. The 100kV current limiting valve layer, as an optional configuration, can use two groups or more of the limiting valve components in para...

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Abstract

A squarely arranged hybrid direct current circuit breaker valve structure, consisting of an on-state branch, a current-limiting branch and an energy-consuming branch. The on-state branch is a square on-state branch valve tower composed of layered tower-type rapid switches and an on-state valve layer located at the bottommost layer, the current-limiting branch is a square valve tower composed of layered power device valve stacks, and the energy-consuming branch is a square energy-consuming branch tower composed of lightning arresters. The three valve towers are shared on the side length or width direction, thereby enabling the whole of the hybrid circuit breaker to have a specified square valve tower structure, which advantageously reduces the volume of the valve towers, decreases the occupied area, and facilitates wiring arrangements. In addition, the valve towers conveniently implement both suspending and supporting valve hall arrangement solutions.

Description

technical field [0001] The invention belongs to direct current circuit breakers, and in particular relates to a hybrid direct current circuit breaker valve structure with square arrangement. Background technique [0002] With the development of multi-terminal DC transmission technology, high-voltage DC circuit breakers will become one of the key equipment to ensure the safe and stable operation of the system. [0003] Hybrid DC circuit breakers have attracted much attention as one of many solutions. According to the working principle of the hybrid circuit breaker, it generally includes IGBT valve tower components, fast switch components, and on-state branch components. Irregular state, large size and heavy weight are not conducive to the inspection and maintenance of the inlet and outlet lines in the valve hall. [0004] CN201610357836.6 discloses a DC circuit breaker valve tower structure, but it does not include fast mechanical switching components, and only describes th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02H7/26H02G13/00
CPCH02G13/80H02H7/268
Inventor 刘彬文继锋于海波杨兵吕玮石巍张伟为
Owner NR ELECTRIC CO LTD