Analysis of Voltage Flicker Signal Based on Wavelet Transform

摘要：

Accurate analysis has important significance to monitor and control voltage flicker efficiently. As voltage flicker is a non-stationary signal, this paper presents a novel analyzing method based on wavelet transform. By wavelet multi-resolution analysis, the flicker envelope can be extracted and the noise contained in the voltage flicker can be filtered. The amplitude, frequency and the starting and ending time of the modulation signal can be calcniated precisely based on the analysis of wavelet modulus maxima. Simulation and application show that the method proposed by this paper is very suitable to analyze the non-stationary voltage flicker signal and can be applied to developing flickermeters.

关键词： Wavelet transform Multi-resolution analysis Voltage flicker noise reduction feature parameters extraction

作者: Guozhen Yao Qiufeng Shang

作者单位: Department of Electronic and Communication Engineering, North China Electric Power University Baoding, Hebei Province, China

会议类型: 国际会议

会议名称: 2010 International Conference on Image Analysis and Signal Processing(2010 图像分析与信号处理国际会议 IASP 10)

会议地点: 厦门

会议语种:英文

页码: 379-382

在线出版日期: 2010-04-12（万方平台首次上网日期，不代表论文的发表时间）