Study on Effect of Harmonics Caused by DC Bias on Commutation Failure in UHVDC Transmission

CHANG Peng; ALIMJAN Kader; WANG Haiyun; WU Jiahui; MEI Yongzhen; LI Yang

doi:10.13296/j.1001-1609.hva.2018.04.014

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Study on Effect of Harmonics Caused by DC Bias on Commutation Failure in UHVDC Transmission

更新时间：2025-04-26

- Study on Effect of Harmonics Caused by DC Bias on Commutation Failure in UHVDC Transmission
- High VoltageApparatus Vol. 54, Issue 4, Pages: 94-99(2018)
- 作者机构：
  
  1. 国网新疆电力有限公司经济技术研究院
  2. 新疆大学教育部可再生能源发电与并网控制工程技术研究中心
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2018.04.014
  CLC： TM721.1
- Published：2018
- 稿件说明：
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[1]常鹏,阿里木江·卡德尔,王海云,武家辉,梅勇振,李阳.特高压直流输电中直流偏磁引起的谐波对换相失败的影响研究[J].高压电器,2018,54(04):94-99.

CHANG Peng, ALIMJAN Kader, WANG Haiyun, et al. Study on Effect of Harmonics Caused by DC Bias on Commutation Failure in UHVDC Transmission[J]. High voltageapparatus, 2018, 54(4): 94-99.
[1]常鹏,阿里木江·卡德尔,王海云,武家辉,梅勇振,李阳.特高压直流输电中直流偏磁引起的谐波对换相失败的影响研究[J].高压电器,2018,54(04):94-99. DOI： 10.13296/j.1001-1609.hva.2018.04.014.

CHANG Peng, ALIMJAN Kader, WANG Haiyun, et al. Study on Effect of Harmonics Caused by DC Bias on Commutation Failure in UHVDC Transmission[J]. High voltageapparatus, 2018, 54(4): 94-99. DOI： 10.13296/j.1001-1609.hva.2018.04.014.

摘要

为了研究特高压直流输电中直流偏磁引起的谐波对换相失败的影响

利用谐波换相电压时间面积的分析方法

分析直流偏磁引起的谐波与换相失败的关系。首先

在PSCAD/EMTDC中搭建了±800 kV特高压直流输电模型

并对双极平衡的运行工况以及单极—大地运行工况下

发生故障时

谐波、励磁电流、熄弧角以及阀电流的情况进行仿真。其次

对仿真结果进行分析

发生直流偏磁引起的谐波对换相失败有一定影响。最后

利用谐波的换相时间面积进行定量的计算。结果表明

直流偏磁引起的谐波会增大换相失败的风险。

Abstract

In order to study the harmonic effect that caused by DC magnetic bias

on commutation failure in the UH-VDC transmission

the thesis analyses the relations between harmonics caused by DC magnetic bias and commuta-tion failure with the analytical approach of the harmonic commutation voltage time area. At first ± 800 kV UHVDCtransmission model is built in the PSCAD/EMTDC

and simulated the situations of the harmonic

excitation cur-rent

extinction angle and valve current

when a fault occurs under the operating conditions of the bipolar balanceand unipolar-ground. Secondly

through analyzing in the result

it is found that harmonics caused by DC magnetic bi-as have a certain effect on commutation failure. At last

the quantitative calculation is conducted using commutationtime space. The results show that harmonics caused by DC magnetic bias increase the risk of commutation failure.

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