Study on the Method of Suppressing Power Oscillation with Braking Resistor in UHVAC/DC Coupling System During Commutation Failure

WEI Peng; ZHOU Qian; WANG Chenggen; LIU Jiankun; ZHU Xinyao

doi:10.13296/j.1001-1609.hva.2018.10.003

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Study on the Method of Suppressing Power Oscillation with Braking Resistor in UHVAC/DC Coupling System During Commutation Failure

更新时间：2025-04-26

- Study on the Method of Suppressing Power Oscillation with Braking Resistor in UHVAC/DC Coupling System During Commutation Failure
- High VoltageApparatus Vol. 54, Issue 10, Pages: 15-20+27(2018)
- 作者机构：
  
  国网江苏省电力公司电力科学研究院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2018.10.003
  CLC： TM721.1
- Published：2018
- 稿件说明：
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[1]卫鹏,周前,汪成根,刘建坤,朱鑫要.特高压交直流耦合系统换相失败期间考虑制动电阻抑制功率振荡方法研究[J].高压电器,2018,54(10):15-20+27.

WEI Peng, ZHOU Qian, WANG Chenggen, et al. Study on the Method of Suppressing Power Oscillation with Braking Resistor in UHVAC/DC Coupling System During Commutation Failure[J]. High voltageapparatus, 2018, 54(10): 15-20+27.
[1]卫鹏,周前,汪成根,刘建坤,朱鑫要.特高压交直流耦合系统换相失败期间考虑制动电阻抑制功率振荡方法研究[J].高压电器,2018,54(10):15-20+27. DOI： 10.13296/j.1001-1609.hva.2018.10.003.

WEI Peng, ZHOU Qian, WANG Chenggen, et al. Study on the Method of Suppressing Power Oscillation with Braking Resistor in UHVAC/DC Coupling System During Commutation Failure[J]. High voltageapparatus, 2018, 54(10): 15-20+27. DOI： 10.13296/j.1001-1609.hva.2018.10.003.

摘要

随着特高压交直流系统的耦合程度不断提高

如何抑制特高压直流发生换相失败引起的特高压交流联络线功率振荡是交直流混联电网控制当前迫切需要解决的问题。文中提出了一种在发生换相失败期间采用整流侧投入制动电阻的方法抑制功率振荡的方法

在RTDS中搭建了锦苏直流和长南荆特高压交流及周边等值交流电网

采用与锦苏直流输电工程在控制保护功能和故障下的暂态响应等方面特性一致的特高压直流控保真型装置与RTDS构成闭环仿真平台

对不同制动电阻和不同直流功率下抑制功率振荡效果影响进行了仿真分析

验证了制动电阻投退逻辑。结果表明

提出的制动电阻的控制逻辑能够有效抑制特高压交直流耦合系统换相失败期间联络线上功率振荡

同时缩短故障恢复时间。

Abstract

With the increasing coupling degree of UHVAC/DC system

how to suppress UHVAC link power oscilla-tion caused by UHVDC commutation failure is an urgent problem to be solved in AC/DC hybrid power grid control. Inthis paper

a method of suppressing power oscillation by commutating braking resistor on commutation side duringcommutation failure is proposed. In the RTDS Chang-Nan-Jing and Jingsu UHVAC equivalent power grid is built

ac-tual control and protection device are built to form a closed loop simulation platform with RTDS. Its performance re-mains highly consistent with actual UHVDC project in protection functions

behavior under fault of AC and DC andother aspects of characteristics. The effect of different braking resistances and different DC power on the power oscil-lation is simulated and analyzed

the braking resistor logic is verified. The results show that the control logic of brak-ing resistor proposed in this paper can effectively suppress the power oscillation on the tie line during the commuta-tion failure of the UHV AC/DC coupling system

while reducing fault recovery time.

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