直流输电系统换流器接地故障定位

LIU Yang; LI Xiaohua; CAI Zexiang

您当前的位置：

首页 >

文章列表页 >

直流输电系统换流器接地故障定位

更新时间：2025-08-13

- 直流输电系统换流器接地故障定位
- Automation of Electric Power Systems Vol. 34, Issue 8, Pages: 86-91(2010)
- 作者机构：
  
  华南理工大学电力学院,广东省,广州市,510640
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2010
- 稿件说明：
移动端阅览
LIU Yang, LI Xiaohua, CAI Zexiang. [J]. Automation of electric power systems, 2010, 34(8): 86-91.
DOI：

LIU Yang, LI Xiaohua, CAI Zexiang. [J]. Automation of electric power systems, 2010, 34(8): 86-91. DOI：

摘要

直流换流器故障具有多样性和时空离散性，造成了故障分析和保护配合的复杂性。当前采用的保护与故障之间并非一一对应，同一故障导致的保护动作具有不确定性，同时，根据保护动作情况也不能进行很好的故障定位。文中结合CIGRE模型的仿真，对7种典型的直流换流器接地故障进行理论分析，指出了不同故障位置引起的换流器工况和电气量特征的差异性，并依据故障时刻对故障特征的影响，提出了划分故障特征时段的方法。最后，结合阀导通的时间特性，提出了以电气特征与延时相结合的换流器接地故障定位判别新思路。

Abstract

Because of the diversity and space-time discretion of DC converter faults， it is very complex to do the fault analysis and protection coordination. With current methods the relationship of protection and fault is not one-to-one. The same fault may lead to different protection actions，also it is not effective to do the fault location analysis from the protection action. Combining the simulation results of the CIGRE HVDC benchmark system， this paper analyses 7 typical grounding faults at the HVDC conversion. The difference of converter operating conditions and electrical characteristics caused by different fault locations is identified. Based on the influence of the fault time on electrical characteristics， a method for dividing fault feature stages is proposed. Finally， combined with the time characteristics of valve， a new discriminant method for fault location with the cooperation of electrical characteristics and delay is proposed.

关键词

Keywords

references

Views

1849

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Analysis and Application of Transient Change of Phase Current Under Grounding Fault in Distribution Network

Detection and Location Method of Single-phase-to-ground Fault in Distribution Network Based on Zero-sequence Transient Fault Component

Frequency Characteristics Based Location of Single-phase-to-ground Fault Area on Rotor Side of Variable-speed Pumped Storage Unit

Related Author

ZHU Xiuxiang

LIU Xiaocong

YAO Mindong

CUI Yanbo

LIU Kexian

LI Lin

GAO Houlei

YUAN Tong

Related Institution

NARI Group Corporation(State Grid Electric Power Research Institute)

Beijing Kedong Power Control System Co., Ltd.

State Grid Heilongjiang Electric Power Co., Ltd.

School of Electrical Engineering, Shandong University

State Key Laboratory of Power System Operation and Control(Tsinghua University)

⁰