一次典型的定子接地故障分析与优化保护原理

WANG Xiang; ZHANG Cheng; SHEN Quanrong

您当前的位置：

首页 >

文章列表页 >

一次典型的定子接地故障分析与优化保护原理

更新时间：2025-08-13

- 一次典型的定子接地故障分析与优化保护原理
- Automation of Electric Power Systems Vol. 30, Issue 11, (2006)
- 作者机构：
  
  1. 南京南瑞继保电气有限公司,江苏省,南京市,211100
  2. 华能淮阴电厂,江苏省,淮安市,223000
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2006
- 稿件说明：
移动端阅览
WANG Xiang, ZHANG Cheng, SHEN Quanrong. [J]. Automation of electric power systems, 2006, 30(11).
DOI：

WANG Xiang, ZHANG Cheng, SHEN Quanrong. [J]. Automation of electric power systems, 2006, 30(11). DOI：

摘要

通过对一次典型的定子接地故障情况和保护录波数据分析，证明了保护动作行为的正确性。在分析过程中发现定子接地故障点离机端近，接地电阻在燃弧过程中很快减小，故障零序电压很快升高，保护也及时切除了故障。文中对基波零序电压和外加电源定子接地保护的原理进行了比较分析，提出了测量式定子接地保护的概念，以及定子接地保护的灵敏性、可靠性、速动性，同时可对发电机定子绕组做出安全、健康的评估。

Abstract

Based on the analysis of a typical stator ground fault and its recording data

the protection action is proved to be correct. From the data it can be found that when the fault locates far from the start point

the earth impedance decreases quickly during arc-burning and the zero sequence voltage increases rapidly at the same time

and the relays switch off the fault in time. This paper analyzes and compares the principles of stator ground fault protection with voltage injection and the 90% ground fault protection with zero sequence voltage. The concept of measuring ground fault relay is proposed to improve the sensitivity

speediness and reliability of protection. In addition

the health of the stator can be evaluated.

关键词

Keywords

references

Views

1872

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Evaluation and Optimization Improvement for Safety Margin in Flexibly Interconnected Distribution Network Under Voltage and Capacity Constraints

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

Day-ahead Topology Optimization for Wind Farm Without Forecasting Based on Improved Deep Q Network

Cooperative Optimal Decision-making for Active Distribution Network with Shared Energy Storage Leased by Prosumers

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

Related Author

JI Xingquan

ZHANG Lihong

LIU Qi

ZHANG Yumin

WANG Yizhen

LIANG Dong

LIAO Jianquan

HU Chengbin

Related Institution

State Key Laboratory of Reliability and Intelligence of Electrical Equipment (Hebei University of Technology)

College of Electrical Engineering and Automation, Shandong University of Science and Technology

Key Laboratory of Smart Grid of Ministry of Education (Tianjin University)

College of Electrical Engineering, Sichuan University

School of Electrical Engineering and Automation, Wuhan University

⁰