Analysis and treatment of commutation failure caused by abnormal extinction angle in HVDC system

LI Huan; ZHAO Xiaobin; YANG Yu

doi:10.16081/j.issn.1006-6047.2019.03.034

English Version Reader LoginJournal Login

您当前的位置：

首页 >

文章列表页 >

Analysis and treatment of commutation failure caused by abnormal extinction angle in HVDC system

更新时间：2025-04-25

- Analysis and treatment of commutation failure caused by abnormal extinction angle in HVDC system
- Vol. 39, Issue 3, Pages: 214-218(2019)
- 作者机构：
  
  南方电网科学研究院直流输电技术国家重点实验室
- 作者简介：
- 基金信息：
- DOI：10.16081/j.issn.1006-6047.2019.03.034
  CLC： TM721.1
- Published：2019
- 稿件说明：
移动端阅览
[1]李欢,赵晓斌,杨煜.高压直流工程熄弧角测量异常引发换相失败故障的分析与处理[J].电力自动化设备,2019,39(03):214-218.

LI Huan, ZHAO Xiaobin, YANG Yu. Analysis and treatment of commutation failure caused by abnormal extinction angle in HVDC system[J]. 2019, 39(3): 214-218.
[1]李欢,赵晓斌,杨煜.高压直流工程熄弧角测量异常引发换相失败故障的分析与处理[J].电力自动化设备,2019,39(03):214-218. DOI： 10.16081/j.issn.1006-6047.2019.03.034.

LI Huan, ZHAO Xiaobin, YANG Yu. Analysis and treatment of commutation failure caused by abnormal extinction angle in HVDC system[J]. 2019, 39(3): 214-218. DOI： 10.16081/j.issn.1006-6047.2019.03.034.

摘要

南方电网某直流工程在调试期间发生了数次换相失败故障

对交直流都产生了较大的影响。对换相失败时的故障录波数据进行分析

推断换相失败原因为熄弧角测量系统偶发故障而引起直流控制系统误动

基于此推断在该直流工程的详细PSCAD模型中进行了模拟

对该故障进行了仿真复现

验证了故障原因分析的正确性。为解决熄弧角测量装置偶发异常的问题

提出在直流控制系统内增加防误逻辑环节屏蔽熄弧角测量异常的影响

并用PSCAD/EMTDC仿真验证了该处理方案的效果

仿真结果和实际运行表明所提解决方案对熄弧角测量异常问题是有效的

确保了高压直流系统的正常稳定运行。

Abstract

Several commutation failures occurred during commissioning of a HVDC project in China Southern Power Grid

which had a great impact on both AC and DC power systems. The transient fault recording data during the commutation failure is analyzed. It is concluded that the reason of the commutation failure is the malfunction of the HVDC control system caused by the accidental failure of the extinguishing angle measurement system. Based on this inference

the detailed PSCAD model of the HVDC project is established

and the fault is simulated and reproduced

which verifies the correctness of the fault cause analysis. In order to resolve the occasional abnormality of the extinction angle measuring device

an anti-error logic link is added in the control system to shield the abnormality of the extinction angle measurement. The effect of the proposed solution is verified by PSCAD/EMTDC simulation

simulative results and actual operation show that the proposed solution is effective for abnormal measurement of extinction angle and ensures safe and stable operation of HVDC system.

关键词

Keywords

references

Views

224

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Excitation loss protection scheme based on excitation current difference for synchronous condenser

DC power control method for preventing commutation failure in multi-DC transmission system

Fault inrush current generation mechanism of inverter-side converter transformer and its influence on differential protection

Commutation failure of Yun-Guang UHVDC transmission system running in negative pole state and its control measures

Related Author

WANG Li

HUANG Mingwei

ZHOU Shihao

ZENG Xiangjun

Zhilin GUO

Liangliang HAO

Hong CAO

Xingguo WANG

Related Institution

School of Electrical and Information Engineering，Changsha University of Science & Technology

Electric Power Research Institute，State Grid Jiangxi Electric Power Co.，Ltd.

School of Electrical Engineering，Beijing Jiaotong University

State Key Laboratory of Power Grid Safety and Energy Conservation， China Electric Power Research Institute

College of Electrical Engineering，Sichuan University

AI问答

⁰