Mechanism and suppression of breaking overvoltage of DC circuit breakers

Lu Qu

doi:10.1049/hve2.12491

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Mechanism and suppression of breaking overvoltage of DC circuit breakers

更新时间：2026-02-25

- Mechanism and suppression of breaking overvoltage of DC circuit breakers
- Mechanism and suppression of breaking overvoltage of DC circuit breakers
- 高电压（英文） 2025年10卷第1期
- 作者机构：
  
  Department of Electrical Engineering, Tsinghua University,Beijing,China
- 作者简介：
- 基金信息：
- DOI：10.1049/hve2.12491
  中图分类号：
- 网络首发：2025-02-01，
  
  纸质出版：2025
- 稿件说明：
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Lu Qu. Mechanism and suppression of breaking overvoltage of DC circuit breakers[J]. 高电压（英文）, 2025,10(1).

Lu Qu. Mechanism and suppression of breaking overvoltage of DC circuit breakers[J]. High Voltage, 2025, 10(1).
Lu Qu. Mechanism and suppression of breaking overvoltage of DC circuit breakers[J]. 高电压（英文）, 2025,10(1). DOI： 10.1049/hve2.12491.

Lu Qu. Mechanism and suppression of breaking overvoltage of DC circuit breakers[J]. High Voltage, 2025, 10(1). DOI： 10.1049/hve2.12491.

摘要

The occurrence of breaking overvoltage in a DC circuit breaker (DCCB) poses a potential threat to the safe operation of a DC grid. Based on the structure of the ±10 kV three-terminal DC distribution network

this paper sets up the medium-voltage DCCB and formulates a fault protection strategy. Additionally

a simulation model of the system is developed to analyse the overvoltage characteristics within the DC distribution network across different nodes and fault conditions. By examining the factors that influence breaking overvoltage

this paper unravels the fundamental mechanisms associated with DCCB-related overvoltage generation. Furthermore

the paper suggests measures to alleviate DCCB overvoltage. These insights provide a theoretical and technical basis for the design and operation of DCCBs within DC distribution networks.

Abstract

this paper sets up the medium-voltage DCCB and formulates a fault protection strategy. Additionally

this paper unravels the fundamental mechanisms associated with DCCB-related overvoltage generation. Furthermore

the paper suggests measures to alleviate DCCB overvoltage. These insights provide a theoretical and technical basis for the design and operation of DCCBs within DC distribution networks.

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