Analysis on the Influence of Commutation Failure on Voltage Disturbance in AC and DC System and Countermeasures

SHEN Hongming; SONG Xuankun; XIAO Zhihong; LIU Ying; CHEN Wei; ZHANG Xianglong; CAO Jing

doi:10.14044/j.1674-1757.pcrpc.2018.05.015

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Analysis on the Influence of Commutation Failure on Voltage Disturbance in AC and DC System and Countermeasures

更新时间：2024-09-14

- Analysis on the Influence of Commutation Failure on Voltage Disturbance in AC and DC System and Countermeasures
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 39, Issue 5, Pages: 81-86(2018)
- 作者机构：
  
  1. 国网经济技术研究院有限公司
  2. 浙江大学电气工程学院
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2018.05.015
  CLC： TM721.1
- Published：2018，
- 稿件说明：
移动端阅览
[1]申洪明,宋璇坤,肖智宏,刘颖,陈炜,张祥龙,曹靖.交直流系统受端故障对送端电压扰动影响及对策研究[J].电力电容器与无功补偿,2018,39(05):81-86.

SHEN HONGMING, SONG XUANKUN, XIAO ZHIHONG, et al. Analysis on the Influence of Commutation Failure on Voltage Disturbance in AC and DC System and Countermeasures. [J]. Power capacitor & reactive power compensation, 2018, 39(5): 81-86.
[1]申洪明,宋璇坤,肖智宏,刘颖,陈炜,张祥龙,曹靖.交直流系统受端故障对送端电压扰动影响及对策研究[J].电力电容器与无功补偿,2018,39(05):81-86. DOI： 10.14044/j.1674-1757.pcrpc.2018.05.015.

SHEN HONGMING, SONG XUANKUN, XIAO ZHIHONG, et al. Analysis on the Influence of Commutation Failure on Voltage Disturbance in AC and DC System and Countermeasures. [J]. Power capacitor & reactive power compensation, 2018, 39(5): 81-86. DOI： 10.14044/j.1674-1757.pcrpc.2018.05.015.

摘要

交直流系统受端与送端通过直流控制相互耦合。文章详细分析了换相失败及直流闭锁对送端交流母线电压的影响

揭示了换相失败与直流闭锁导致送端过电压的机理

分析结果表明送端交流系统功率因数降低以及无功补偿装置不能实时适应电网的运行是造成过电压的主要原因

并进一步提出了解决送端过电压可能造成大规模风电脱网的措施

最后基于PSCAD/EMTDC仿真验证了结论的正确性。

Abstract

The sending and receiving end of AC and DC system are coupled each other through DC control.In this paper

the influence of commutation failure and DC block on the sending end voltage is analyzed indetail. The mechanism of the sending end over voltage due to communication failure and DC block is re-vealed. It is shown by the analysis result that the main reason of over voltage is due to the reduction of pow-er factor of AC system at the sending end and no real time adaption of the reactive power device to the opera-tion of grid. The measures on solving such problem as large scale wind power offline due to the sending over-voltage is proposed further and

finally

the correctness of the conclusion is verified by PSACD/EMTDCsimulation.

关键词

高压直流输电换相失败直流送端电压稳定风机脱网

Keywords

high-voltage direct current transmission（HVDC）commutation failureDC sending endvoltage stabilitywind power offline

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