电力系统保护与控制Issue(1)：50-54,5.
基于暂态量的同塔双回线路故障选相研究
Research on transient-based faulty phase selection for double-circuit lines on the same tower
田书 1刘芳芳 1任晓明1
作者信息
- 1. 河南理工大学电气工程与自动化学院，河南 焦作 454003
- 折叠
摘要
Abstract
This paper proposes a novel approach of transient-based faulty phase selection for double circuit lines on the same tower. This phase-selection algorithm uses the wavelet transform to extract the transient energy of current faulty component in each phase and takes the transient energy as phase selection criterion. First, according to the fault equivalence principle of the single line and double circuit lines on the same tower, this approach identifies the fault phase preliminarily. Then the transient energy magnitudes are compared to select the same-name-phase fault lines and further identify the fault phase precisely. At last, this paper presents a complete faulty phase selection based on the single terminal quantities of double circuit lines. The effectiveness of the approach has been verified by simulating different fault types, fault location, fault time and different transition resistance with PSCAD/EMTDC.关键词
双回线/暂态能量/小波变换/同名相识别/故障选相Key words
double circuits lines/transient energy/wavelet transform/identification of the same name phases/selection分类
信息技术与安全科学引用本文复制引用
田书,刘芳芳,任晓明..基于暂态量的同塔双回线路故障选相研究[J].电力系统保护与控制,2015,(1):50-54,5.
