摘要
依据单一选线原理的选线方法只针对部分故障信息进行处理,效果不尽人意,因此多判据综合选线成为当前的发展方向。从改善软件算法出发,引入暂态算法等新的判据,通过隶属函数构造多种判据参与选线,进行智能融合,把继电保护智能化的思想引入小电流接地系统单相接地故障选线中。对所提出的综合选线方法进行仿真与实现,实验结果证明该方法有效、准确。
The line selection method on the basis of single line selection method has poor reliability, so the idea ot mum-criteria integrated line selection method tends to be the development direction. On the base of improving software arithmetic, new criterion such as transient arithmetic is introduced. Various criteria for line selection are created through membership functions and integrated, and intelligent protective relaying is introduced into line selection method for single-phase ground- ing fault of non-effective earthing system. The mentioned integrated line selection method is simulated and implemented and the experiment test verifies its effectiveness and accuracy.
出处
《广东电力》
2012年第2期20-23,33,共5页
Guangdong Electric Power
关键词
小电流接地系统
故障选线
暂态算法
隶属函数
non-effective system
fault line selection
transient arithmetic
membership function
