电力系统及其自动化学报2012，Vol.24Issue(4)：99-105,7.
基于行波模值比值与极性的选线选相法
Fault Line and Phase Selection Based on Modulus Ratio and Polarity of Traveling Wave
季晨宇 1袁振海 1夏伟伟1
作者信息
- 1. 南京工业大学自动化与电气工程学院,南京211816
- 折叠
摘要
Abstract
Fault line selection based onβ and y modulus of with neutral non-effectively grounded system (NNG) is complex and fault line selection based on phase current traveling wave can not select fault phase. A novel fault line and phase selection method, which uses the result of current initial traveling wave and deduces the ratio relationship of β and y modulus, was proposed in the paper. The algorithm can analyze faults on- line by determining the ratio of modulus maxima of phase current initial traveling wave and modulus. It is applied in the systems with two-phase or three-phase TAs and meets different site conditions. Simulation results show that the proposed method is correct and available.关键词
行波/单相接地选线/小波变换/小电流接地系统Key words
traveling waves single phase to earth fault line selection/ wavelet transform/ neutral non-effectual grounded systems
分类
信息技术与安全科学引用本文复制引用
季晨宇,袁振海,夏伟伟..基于行波模值比值与极性的选线选相法[J].电力系统及其自动化学报,2012,24(4):99-105,7.
