Coordination of DC Circuit Breaker and DC Fault Current Limiter

ZHANG Chong; ZHANG Xuan; ZHANG Zhifeng

doi:10.13296/j.1001-1609.hva.2017.12.005

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Coordination of DC Circuit Breaker and DC Fault Current Limiter

更新时间：2025-04-26

- Coordination of DC Circuit Breaker and DC Fault Current Limiter
- High VoltageApparatus Vol. 53, Issue 12, Pages: 26-33+41(2017)
- 作者机构：
  
  1. 中国科学院应用超导重点实验室
  2. 中国科学院电工研究所
  3. 北京理工大学自动化学院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2017.12.005
  CLC： TM561
- Published：2017
- 稿件说明：
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[1]张翀,张轩,张志丰.直流断路器与直流故障限流器的匹配研究[J].高压电器,2017,53(12):26-33+41.

ZHANG Chong, ZHANG Xuan, ZHANG Zhifeng. Coordination of DC Circuit Breaker and DC Fault Current Limiter[J]. High voltageapparatus, 2017, 53(12): 26-33+41.
[1]张翀,张轩,张志丰.直流断路器与直流故障限流器的匹配研究[J].高压电器,2017,53(12):26-33+41. DOI： 10.13296/j.1001-1609.hva.2017.12.005.

ZHANG Chong, ZHANG Xuan, ZHANG Zhifeng. Coordination of DC Circuit Breaker and DC Fault Current Limiter[J]. High voltageapparatus, 2017, 53(12): 26-33+41. DOI： 10.13296/j.1001-1609.hva.2017.12.005.

摘要

快速直流断路器是切除直流电网故障必不可少的设备

而其开断容量难以达到直流电网的要求

通过限流器和断路器的配合能够有效提升断路器的开断能力

从而确保直流电网安全运行。文中在深入开展快速机械断路器的特性的基础上

对断路器与直流限流器的配合问题进行研究:首先

分析机械断路器的开断原理

通过MATLAB/Simulink建立直流断路器电弧特性仿真模型;然后

根据直流电网电压等级、开断电流大小和开断时间等不同要求

研究限流器对断路器开断时间、开断瞬间峰值电压的影响

仿真分析与之相匹配的限流类型及其参数值优化方法;最后

根据超导带材的数学模型

搭建了电阻型超导故障限流器（RSFCL）的仿真模型

用可变电阻模拟超导限流器失超过程的电阻变化

进一步分析限流器对开断过程的影响

上述工作对直流超导限流器的直流电网应用有重要指导意义。

Abstract

Fast DC circuit breaker is essential equipment for fault removal of DC power grid

however its breaking capacity is insufficient to meet the requirements of DC power grid.Fortunately

the cooperation of current limiter and circuit breaker can effectively improve breaking capacity of the circuit breaker

so as to ensure safe operation of the DC power grid.In this paper

an arc characteristic simulation model of high voltage DC circuit breaker is established by using MATLAB/Simulink according to the principle of the circuit breaker in order to investigate the effects of current limiter on the circuit breaker with respect to the breaking time and transient over-voltage.Subsequently

a model of the resistance-type superconducting fault current limiter（RSFCL）is built according to the superconducting belt model for the purpose of adopting variable resistance to simulate the change of resistance in the superconductivity-losing process of the current limiter

and for further analyzing the effect of the current limiter on the breaking process of the circuit breaker.This work may provide a reference for application of DC superconducting current limiter to DC power grid.

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