摘要
Abstract
When the power system fails, to find out the system fault detection accurately and expeditiously is demanded.This paper proposes morphological Haar wavelet to decompose the zero -sequence current signal, and process this signal with Top -Hat and Bottom -Hat operation, finally detect the fault line with the time relation between trough and crest of the zero-sequence current signal. A large number of simulations prove the effectiveness of this method. Compared with the wavelet decomposition, this method of computation is simple, involving only addition, subtraction, and extreme computing.关键词
形态学/Haar小波/波峰波谷/故障选线/Top-Hat和Bottom-HatKey words
Morphological/Haar wavelet/trough and crest fault detection/top-hat and bottom-hat分类
信息技术与安全科学
