摘要
采用了小波分解和同步检波法对电压波动与闪变信号进行检测,该方法使用相关法来确定采样信号基波的初相角,产生与采样信号同步的工频信号,在小波域上精确地检测出信号的时间、频率和幅度。仿真实验结果表明,该方法具有良好的检测和时频分析性能。
This paper useed wavelet transform and synchronous detection method in the detection of voltage fluctuation and flicker. The method determined sampling signal fundamental wave＇s primary phase through correlation method and generated power frequency signal synchronize with the sampling signal. Wavelet domain can detect the time, frequency and amplitude of the signal accurately. The results of simulation showed that this method has good performance of detection and time-frequency analysis.
出处
《电力科学与工程》
2007年第3期20-23,共4页
Electric Power Science and Engineering
关键词
电压闪变
同步电压
小波分解
voltage flicker
synchronizing voltage
wavelet transform
