Analysis and Protection of Overvoltage of 35 kV Shunt Compensation Capacitor Bank When Relay Protection Take Action

SIMA Wenxia; JIANG Xiongwei; PENG Qingjun; YANG Qing; YANG Ming

doi:10.13296/j.1001-1609.hva.2017.08.001

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Analysis and Protection of Overvoltage of 35 kV Shunt Compensation Capacitor Bank When Relay Protection Take Action

更新时间：2025-04-26

- Analysis and Protection of Overvoltage of 35 kV Shunt Compensation Capacitor Bank When Relay Protection Take Action
- High VoltageApparatus Vol. 53, Issue 8, Pages: 1-8(2017)
- 作者机构：
  
  1. 重庆大学输配电装备及系统安全与新技术国家重点实验室
  2. 云南电网有限责任公司电力科学研究院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2017.08.001
  CLC： TM53;TM77
- Published：2017
- 稿件说明：
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[1]司马文霞,姜雄伟,彭庆军,杨庆,杨鸣.35 kV并联补偿电容器组继电保护动作时过电压的分析及防护[J].高压电器,2017,53(08):1-8.

SIMA Wenxia, JIANG Xiongwei, PENG Qingjun, et al. Analysis and Protection of Overvoltage of 35 kV Shunt Compensation Capacitor Bank When Relay Protection Take Action[J]. High voltageapparatus, 2017, 53(8): 1-8.
[1]司马文霞,姜雄伟,彭庆军,杨庆,杨鸣.35 kV并联补偿电容器组继电保护动作时过电压的分析及防护[J].高压电器,2017,53(08):1-8. DOI： 10.13296/j.1001-1609.hva.2017.08.001.

SIMA Wenxia, JIANG Xiongwei, PENG Qingjun, et al. Analysis and Protection of Overvoltage of 35 kV Shunt Compensation Capacitor Bank When Relay Protection Take Action[J]. High voltageapparatus, 2017, 53(8): 1-8. DOI： 10.13296/j.1001-1609.hva.2017.08.001.

摘要

为探究继电保护动作时

真空断路器开断35 kV并联电容器时过电压产生机理和改进现有仿真模型的不足

笔者简单综述了真空断路器开断电容器组的仿真研究现状

基于ATP-EMTP电磁暂态仿真软件

搭建了真空断路器投切35 kV电容器组的三相电路并考虑了三芯电缆、断路器三相间的耦合参数。模拟了继电保护动作时

真空断路器快速合—分闸电容器组的操作

并仿真了首开相重燃、两相同时重燃、母线对地电容瞬间变化等因素对投切电容器组过电压的影响。仿真结果表明:继电保护动作

母线对地电容发生瞬间性变化导致"虚拟截流"现象以及多相重燃是事故的主要原因。最后提出几点开断并联电容器过电压的抑制措施。

Abstract

In order to explore the mechanism of overvoltage when vacuum breaker breaking 35 kV shunt capacitors and improve the simulation model

a general review of simulating researches on vacuum circuit breakers switching off shunt capacitors is given. The paper established a three-phase simulation of the VCB switching off shunt capacitors in ATP-EMTP to simulate the field tests based on the models

and cable parasitic parameters is considered in the simulation. The statistics results show that the main reason of such accidents is relay protection take action

virtual closure phenomenon caused by the fluctuation of bus-ground capacitance and multi-phase reignition. Finally

the suppression measures of the overvoltage caused by the breaking shunt capacitors are presented.

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