适用于直流电网保护的高压直流断路器时序配合方法

ZHAO Jianpeng

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适用于直流电网保护的高压直流断路器时序配合方法

更新时间：2025-08-13

- 适用于直流电网保护的高压直流断路器时序配合方法
- Automation of Electric Power Systems Vol. 43, Issue 11, Pages: 121-127(2019)
- 作者机构：
  
  新能源电力系统国家重点实验室(华北电力大学),北京市,102206
- 作者简介：
- 基金信息：
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- Published：2019
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ZHAO Jianpeng. [J]. Automation of electric power systems, 2019, 43(11): 121-127.
DOI：

ZHAO Jianpeng. [J]. Automation of electric power systems, 2019, 43(11): 121-127. DOI：

摘要

世界范围内风电、光伏大规模开发利用，其所占发电比例不断增加。柔性直流电网作为支撑高比例新能源接纳的重要手段，已成为电网发展的重要方向。高压直流断路器作为柔性直流电网隔离直流故障的关键设备也受到了越来越多的关注。提出了一种直流电网保护中高压直流断路器的新型时序配合方法，该方法可以在直流断路器拒动情况下有效减小其余直流断路器的开断直流故障电流水平，同时缩减故障隔离时间和减小直流断路器中耗能支路耗散的能量。同时，提出了一种适用于直流断路器配合，用于检测直流断路器是否存在拒动的故障判断方法。在PSCAD/EMTDC中的仿真结果验证了所提出新型时序配合方法和故障判断方法的正确性和有效性。

Abstract

With the development and utilization of large-scale wind power and photovoltaic in the world

the penetration of its ratio of power generation continues to increase. Flexible DC grid is an important role to support high penetration of renewable energy accomodation

which has been an important direction of power grid development. High voltage DC circuit breakers

as the key device for DC fault isolation in DC grid have been receiving more and more attention. This paper proposes a novel high voltage DC circuit breaker time-sequence coordination method for DC grid protection. The method could effectively reduce the DC fault current broken by the other DC circuit breakers when one or more DC circuit breakers fail to operate. The method could also reduce the fault isolation time and the energy dissipation in DC circuit breakers. Meanwhile

this paper proposes a fault judgement method for DC circuit breakers coordination

which could accurately determine whether DC circuit breakers fail to operate or not. The simulation results in PSCAD/EMTDC validate the correctness and validity of the proposed method and fault judgment method.

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