基于电压型故障特征量的发电机机端断路器非全相保护

LI Heting

您当前的位置：

首页 >

文章列表页 >

基于电压型故障特征量的发电机机端断路器非全相保护

更新时间：2025-08-13

- 基于电压型故障特征量的发电机机端断路器非全相保护
- Automation of Electric Power Systems Vol. 41, Issue 1, Pages: 140-144(2017)
- 作者机构：
  
  清华大学电机工程与应用电子技术系,北京市,100084
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2017
- 稿件说明：
移动端阅览
LI Heting. [J]. Automation of electric power systems, 2017, 41(1): 140-144.
DOI：

LI Heting. [J]. Automation of electric power systems, 2017, 41(1): 140-144. DOI：

摘要

针对广州蓄能水电厂A厂在轻载发电工况下，发电机机端断路器(GCB)发生单相断线时，相关保护未能及时切除故障导致事故扩大的现状，利用对称分量法对GCB非全相故障进行了理论分析，并运用PSCAD软件搭建了GCB非全相故障的动态仿真计算模型。根据故障特征提出了以GCB两侧基波零序电压的相角差作为GCB非全相保护新型判据的构想，通过动模实验验证了仿真计算模型的正确性与GCB非全相保护新型判据的合理性。

Abstract

In view of the failure of Guangzhou Pumped Storage Power Station A(GPSPSA)generator circuit breaker(GCB)to shave the fault during single-phase disconnection that led to expansion of the accident when the generator was running under low load

the symmetrical component method is adopted to analyze the GCB open-phase fault. The simulation model for the GCB open-phase fault is built using the PSCAD software. According to the fault features

the phase angle difference of the zero sequence fundamental voltages between the two sides of GCB is assumed to be the new criterion for GCB open-phase protection. Through the experiment of the dynamic simulation system for the GCB open-phase fault

the simulation model is verified to be correct and the new criterion for the GCB open-phase protection is rational.

关键词

Keywords

references

Views

2728

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Fast Protection Scheme for Bipolar Face-to-face Modular Multilevel Converter Based DC Transformer

Problems Faced by Relay Protection in New Power System and Their Solution Ideas

基于断口两侧电压相量差的发电机机端断路器非全相保护

Related Author

LIAO Jianquan

HU Chengbin

GAO Shilin

TAN Zipeng

WANG Yuhong

WU Tonghua

ZHOU Bohao

YANG Guosheng

Related Institution

College of Electrical Engineering, Sichuan University

NARI Group Corporation(State Grid Electric Power Research Institute)

State Key Laboratory of Technology and Equipment for Defense Against Power System Operational Risks

State Grid Corporation of China

Key Laboratory of the Ministry of Education on Smart Power Grids(Tianjin University)

⁰