摘要
基于暂态故障行波的故障检测技术是未来电力系统不可或缺的技术手段和重要发展方向。基于故障行波信息对大型发电机进行继电保护和故障定位是其包括的重要内容,该文对该领域所涉及的理论研究做了综述性的分析。首先从大型发电机故障行波检测的应用空间探讨了对其故障行波研究的依据和可行性,接下来主要结合大型发电机定子的单相接地对故障行波传播的基本原理以及概念和特征做了简要介绍;随后对基于故障行波信息理论的大型发电机定子单相接地的继电保护和故障定位的原理与例证分析做了较深入的阐述;最后对行波保护技术在该领域进展做了总结和前瞻。
New detection technology based on transient fault travelling waves for electrical equipments in power system is an essential technology in the future, and at the same time it is the important research and development direction at present. Relay protection and fault location based on fault travelling waves for large generators are the important parts in this coverage. This paper presents the survey and some comments of the research work and developments in this area. Firstly, from the view of the application scope of the detection of the travelling waves of the large generator＇s faults, the basis and the feasibility of its research of the fault travelling waves are briefly investiga- ted, and then the principle and its concept and features of the propagation of the fault travelling waves are briefly introduced in combination with the single phase ground faults of the large generators. Thereafter, the principle and the analysis of the examples of the relay protection and the fault location of the single phase ground fault of the large generators are mentioned profoundly based on the information theory of the fault travelling waves. Lastly, summary and the works in future of the fault travelling waves for the relay protection and fault location in large generator＇s research are given.
出处
《电工电能新技术》
CSCD
北大核心
2013年第1期98-103,共6页
Advanced Technology of Electrical Engineering and Energy
基金
新世纪优秀人才支持计划资助项目(NCET20820356)
国家教育部留学归国人员科研启动基金(教外司留[2011]1139号)
关键词
大型发电机
故障行波信息
继电保护
故障定位
huge electrical generators
fault traveling-wave theory
relay protection
fault location
