Current Limiting High Voltage DC Circuit Breaker with Re-closing Function

TAO Caixia; WANG Yue; GAO Fengyang; YANG Qiaoli

doi:10.13296/j.1001-1609.hva.2024.08.006

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Current Limiting High Voltage DC Circuit Breaker with Re-closing Function

Research & Analysis | 更新时间：2025-04-26

- Current Limiting High Voltage DC Circuit Breaker with Re-closing Function
- High Voltage Apparatus Vol. 60, Issue 8, Pages: 43-52(2024)
- 作者机构：
  
  兰州交通大学自动化与电气工程学院，兰州　 730070
- 作者简介：
- 基金信息：
  
  Lanzhou Jiaotong University - Tianjin University Joint Innovation Fund(2020056);Lanzhou Talent Innovation Project(2017-RC-95)
- DOI：10.13296/j.1001-1609.hva.2024.08.006
  CLC：
- Received：13 January 2024，
  
  Revised：19 March 2024，
  
  Published：16 August 2024
- 稿件说明：
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TAO Caixia, WANG Yue, GAO Fengyang, et al. Current Limiting High Voltage DC Circuit Breaker with Re-closing Function[J]. High voltage apparatus, 2024, 60(8): 43-52.
DOI：

TAO Caixia, WANG Yue, GAO Fengyang, et al. Current Limiting High Voltage DC Circuit Breaker with Re-closing Function[J]. High voltage apparatus, 2024, 60(8): 43-52. DOI： 10.13296/j.1001-1609.hva.2024.08.006.

摘要

为提高柔性直流输电系统发生短路故障后高压直流断路器的故障隔离、限流及重合闸恢复能力，在现有直流断路器结构基础上提出一种具有重合闸功能的限流式直流断路器（RCL-HDCB）。RCL-HDCB方案改进了断路器的限流支路，使其能够快速重合闸，依据动作过程及原理进行了参数设计，在PSCAD/EMTDC仿真软件中搭建了基于模块化多电平换流器（modular multilevel converter，MMC）的双端直流输电系统，对RCL-HDCB的运行状态进行仿真验证，结果表明该设备在发生短路故障后能够快速有效开断，故障电流也得到了较好的抑制，同时重合闸运行稳定，因此该RCL-HDCB方案对柔直输电系统具有一定的指导意义。

Abstract

In order to improve the fault isolation

current limiting and re-closing operation recovery ability of high voltage DC (HVDC) circuit breaker after the short circuit fault in flexible HVDC transmission system

a kind of HVDC circuit breaker with re-closing function (RCL-HDCB) is proposed based on the structural base of existing DC circuit breaker. The current limiting branch of circuit breaker is improved by the RCL-HDCB proposal

which can make it quickly for re-closing operation. The parameters are designed by the operation process and principle and

based on PSCAD/EMTDC simulation software

the dual-terminal DC transmission system by modular Multilevel Converter (MMC) is set up to simulate and verify the operating state of RCL-HDCB. The results show that the device can quickly and effectively break after short circuit fault

the fault current is suppressed better and

at the same time

the re-closing operation is stable. Therefore

the RCL-HDCB proposal has certain guiding significance for the flexible HVDC transmission system.

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