Asymmetrical Bridge Hybrid DC Circuit Breaker

YANG Guilin

doi:10.13296/j.1001-1609.hva.2021.12.006

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Asymmetrical Bridge Hybrid DC Circuit Breaker

更新时间：2025-04-26

- Asymmetrical Bridge Hybrid DC Circuit Breaker
- High VoltageApparatus Vol. 57, Issue 12, Pages: 42-49(2021)
- 作者机构：
  
  中铁建电气化局集团第三工程有限公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2021.12.006
  CLC： U239.5;TM561
- Published：2021
- 稿件说明：
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YANG Guilin. Asymmetrical Bridge Hybrid DC Circuit Breaker[J]. High voltageapparatus, 2021, 57(12): 42-49.
DOI：

YANG Guilin. Asymmetrical Bridge Hybrid DC Circuit Breaker[J]. High voltageapparatus, 2021, 57(12): 42-49. DOI： 10.13296/j.1001-1609.hva.2021.12.006.

摘要

直流断路器是轨道交通直流牵引供电系统的关键设备。目前直流牵引供电系统中以空气式直流断路器为主

其关断过程存在金属触头以及灭弧栅片烧蚀

开断速度慢的问题。针对以上问题

提出一种非对称桥式混合式直流断路器

具有关断速度快、双向开断、经济性好的特点。首先分析了该拓扑的工作原理

然后分析了断路器关键部件的参数对分断过程的影响

基于该技术路线研制了直流断路器低压物理样机及动态模拟试验平台

开展了断路器分断试验

结果表明非对称桥式直流断路器能够在3 ms内实现系统故障电流的快速关断

并且在经济性、紧凑性、重合闸等方面具有优势。

Abstract

DC circuit breaker is the key equipment of DC traction power supply system in Rail Transit. In the current DC traction power supply system

the air type DC circuit breaker is predominate

which has such problems in the switching period as ablation of metal contact and arc extinguishing grid as well as slow breaking speed. In view of above problems

a kind of asymmetrical bridge type hybrid DC circuit breaker featuring in fast switching

bi-directional interruption and good economic performance is proposed. First

the working principle of the topology is analyzed

and then the influence of the parameters of the key parts of the circuit breaker on the switching process is analyzed. The low voltage physical prototype of the DC circuit breaker and dynamic simulation test platform are developed based on the technical idea

and the switching test of the circuit breaker is performed. The result shows that the asymmetrical bridge DC circuit breaker can achieve fast switching of fault current of the system within 3 ms

and has advantages in the aspects of economy

compactness and reclosure.

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Related Institution

State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology

State Grid Shanxi Yangquan Power Supply Company

College of Electrical Engineering & New Energy, China Three Gorges University

School of Electric Power Engineering, Nanjing Institute of Technology

State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University

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