Topology Optimization of HVDC Circuit Breaker with Forced Current Zero

FANG Shuai; YUAN Zhao; YU Xinlin; SHAO Min; ZHAO Wenting; HE Junjia; PAN Yuan

doi:10.13296/j.1001-1609.hva.2015.11.009

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Topology Optimization of HVDC Circuit Breaker with Forced Current Zero

更新时间：2025-04-26

- Topology Optimization of HVDC Circuit Breaker with Forced Current Zero
- High VoltageApparatus Vol. 51, Issue 11, Pages: 53-58(2015)
- 作者机构：
  
  华中科技大学强电磁工程与新技术国家重点实验室
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2015.11.009
  CLC： TM561
- Published：2015
- 稿件说明：
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[1]方帅,袁召,喻新林,邵敏,赵文婷,何俊佳,潘垣.强制过零型高压直流断路器拓扑优化[J].高压电器,2015,51(11):53-58.

FANG Shuai, YUAN Zhao, YU Xinlin, et al. Topology Optimization of HVDC Circuit Breaker with Forced Current Zero[J]. High voltageapparatus, 2015, 51(11): 53-58.
[1]方帅,袁召,喻新林,邵敏,赵文婷,何俊佳,潘垣.强制过零型高压直流断路器拓扑优化[J].高压电器,2015,51(11):53-58. DOI： 10.13296/j.1001-1609.hva.2015.11.009.

FANG Shuai, YUAN Zhao, YU Xinlin, et al. Topology Optimization of HVDC Circuit Breaker with Forced Current Zero[J]. High voltageapparatus, 2015, 51(11): 53-58. DOI： 10.13296/j.1001-1609.hva.2015.11.009.

摘要

强制过零型直流断路器作为机械式高压直流断路器的主要研究方向

技术简单成熟

动作可靠性高。笔者基于实际直流电网

对直流断路器可能遇到的最严重故障即直流线路整流侧出口短路故障进行了仿真分析

并提出现有强制过零型直流断路器拓扑的两点缺陷。在此分析基础上

提出了在换流电容两端加装避雷器、在平波电抗器两端加装吸能组件的拓扑优化策略

能有效降低换流电容电压峰值和机械开关断口电压峰值。

Abstract

As the main research direction of mechanical HVDC circuit breaker

forced current zero is of simple mature technology and high operating reliability. Based on the actual DC grid

the simulation analysis on the short circuit at the rectifier outlet of DC line

may be the most serious malfunction to DC circuit breaker

has been conducted. On the basis of this analysis

the two flaws of current topology are found and two topology optimization strategies are proposed

including installing surge arrester in parallel with the commutation capacitance and installing energy absorption components in parallel with the smoothing reactor

which can effectively reduce peak voltage between commutation capacitance and peak voltage between the mechanical switch.

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