Study on Voltage Recovery Characteristics of AC Filter Breaker in UHV Converter Station

FANG Bing; GUAN Yonggang; SHEN Xiaolin

doi:10.13296/j.1001-1609.hva.2015.08.001

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Study on Voltage Recovery Characteristics of AC Filter Breaker in UHV Converter Station

更新时间：2025-04-26

- Study on Voltage Recovery Characteristics of AC Filter Breaker in UHV Converter Station
- High VoltageApparatus Vol. 51, Issue 8, Pages: 1-7(2015)
- 作者机构：
  
  1. 清华大学电机系电力系统及发电设备控制和仿真国家重点实验室
  2. 国网北京经济技术研究院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2015.08.001
  CLC： TM561;TM721.1
- Published：2015
- 稿件说明：
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[1]方冰,关永刚,申笑林.特高压换流站交流滤波器断路器恢复电压特性研究[J].高压电器,2015,51(08):1-7.

FANG Bing, GUAN Yonggang, SHEN Xiaolin. Study on Voltage Recovery Characteristics of AC Filter Breaker in UHV Converter Station[J]. High voltageapparatus, 2015, 51(8): 1-7.
[1]方冰,关永刚,申笑林.特高压换流站交流滤波器断路器恢复电压特性研究[J].高压电器,2015,51(08):1-7. DOI： 10.13296/j.1001-1609.hva.2015.08.001.

FANG Bing, GUAN Yonggang, SHEN Xiaolin. Study on Voltage Recovery Characteristics of AC Filter Breaker in UHV Converter Station[J]. High voltageapparatus, 2015, 51(8): 1-7. DOI： 10.13296/j.1001-1609.hva.2015.08.001.

摘要

笔者使用PSCAD暂态仿真软件

首次针对某特高压直流输电工程中直流电压等级为±800 k V、交流电压等级为750 k V的特高压直流换流站进行了完整建模仿真

对交流滤波器断路器上的恢复电压进行了仿真研究。通过不同工况、不同故障时刻、不同开断时刻条件下的对比

得到了各种情况下最严重的恢复电压特性

并与现有断路器标准进行了比较。仿真结果表明

在交流侧发生三相短路接地（3LG）故障或其他多相短路故障后

断路器断口间电压已经超出国家标准中对开断容性电流能力的规定

最严重的暂态恢复电压也已经超出断路器行业标准中四参数法的规定。此外

在某些情况下开断初期还会产生较大的初始瞬态恢复电压上升率

因此应当采取一定手段加以抑制。

Abstract

For the first time

the electromagnet transient model of a certain UHV converter station of ±800 k V（DC side）and 750 k V（AC side） in HVDC transmission project has been established by PSCAD

and the recovery voltage characteristic on the AC filter breakers has been analyzed. Different fault type

fault occurring time

breaker operating time etc. have been considered and the most severe recovery voltage has been found. Simulation outcomes show that when fault of 3LG or other types occurs on AC side

the recovery voltage across circuit breakers opening AC filters can both exceed the durance of opening capacitive current and the present fourparameter standard of transient recovery voltage of 800 k V circuit breakers. The rise rate of initial transient recovery voltage also can be very high. Thus

measures should be taken to suppress the recovery voltage of the circuit breakers opening AC filters in UHV converter station.

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