摘要
针对配电网10kV线路单相接地故障区段定位问题,提出了一种基于区段零序电流的有效值法,并利用电磁暂态仿真软件ATP EMTP和Matlab工具对配电网10kV线路进行仿真实验和数据分析,在理论和实验上说明该方法原理正确、简单,不受过渡电阻、故障时刻、采样点数等影响,具有一定的实用价值。
To solve the problem of locating single-phase grounding fault section of 10 kV feeders in power distribution system,this paper presents a virtual value method based on zero-sequence current of sections. Simulation experiment with ATP-EMTP and data processing with Matlab demonstrate that the proposed method is correct.The method is simple in theory,and not influenced by grounding resistance, fault time,and sampling nodes. It has some practical values.
出处
《继电器》
CSCD
北大核心
2005年第8期34-37,共4页
Relay
关键词
单相接地故障
区段零序电流
有效值法
single-phase grounding fault
zero-sequence current of sections
virtual value method
