Research on Economical DC Circuit Breaker with Reclosing Function

ZHANG Jie; JI Jianghui; ZHANG Yuchan; YU Huiyong

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Research on Economical DC Circuit Breaker with Reclosing Function

更新时间：2025-12-08

- Research on Economical DC Circuit Breaker with Reclosing Function
- Vol. 47, Issue 3, Pages: 1083-1091(2021)
- 作者机构：
  
  许继集团有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published Online：31 March 2021，
  
  Published：2021
- 稿件说明：
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ZHANG Jie, JI Jianghui, ZHANG Yuchan, et al. Research on Economical DC Circuit Breaker with Reclosing Function[J]. 2021, 47(3): 1083-1091.
DOI：

ZHANG Jie, JI Jianghui, ZHANG Yuchan, et al. Research on Economical DC Circuit Breaker with Reclosing Function[J]. 2021, 47(3): 1083-1091. DOI：

摘要

为解决机械式直流断路器不易实现快速重合闸、开断小电流不易判别方向等技术难题及混合式直流断路器成本较高的问题

该文提出了一种具备重合闸功能的经济型直流断路器拓扑。首先

结合该拓扑工作方式研究了电流基于电弧电压自然转移与基于电力电子器件强迫转移的原理;其次

根据实测参数建立系统模型

仿真了故障电流、负荷电流及小电流的开断过程

验证了不同电流的开断性能;最后

针对原理样机进行开断试验

验证了该方案的可行性。研究结果表明:该方案可实现40 ms内快速重合闸、3 ms内截断故障电流等功能

且减少了电子电子器件应用数量

为经济型直流开关设备的研究提供一种新的思路。

Abstract

In order to solve the technical problems of mechanical DC circuit breaker

such as difficulties in realizing fast reclosing and in judging the direction of breaking small current and high cost of hybrid DC circuit breaker

this paper presents an economical DC circuit breaker topology with reclosing function. Firstly

combined with the topology working mode

the principle of current natural transfer based on arc voltage and forced transfer based on power electronic devices are studied. Secondly

according to the measured parameters

a system model is established to simulate the breaking process of fault current

load current and small current

and to verify the breaking performance of different currents. Finally

the feasibility of the scheme is verified by the breaking test of the prototype. The results show that the scheme can realize the functions of fast reclosing within 40 ms and fault current truncation within 3 ms

and it can reduce the number of electronic devices

which provides a new idea for the research of economical DC switchgear.

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Related Author

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ZHU Ruoxi

ZENG Ni

MAO Chengxiong

WANG Dan

WEN Weijie

HUANG Yulong

Related Institution

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

State Grid HBEPC Economic & Technology Research Institute

School of Electrical Engineering, Wuhan University

Key Laboratory of Smart Grid of Ministry of Education, Department of Electrical Engineering & Automation, Tianjin University

State Key Laboratory of Control and Simulation of Power System and Generation Equipments, Department of Electrical Engineering, Tsinghua University

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