摘要
电力系统动态信号对分析和控制电力系统具有极为重要的意义。WAMS的应用为电力系统动态信号的获取和应用奠定了基础。在通常情况下,WAMS系统记录的电力系统动态信号中含有各种噪声,这对动态信号在电力系统中的应用产生了较为严重的影响。因此,应采用有效的降噪方法减小动态信号中的噪声。小波方法可时频分解信号,且不同信号在不同尺度小波分解上具有不同的特点。基于小波理论,分析、比较了各种小波降噪方法在电力动态信号中的应用效果。
Power system dynamic signal analysis and control of power system has very important significance. The application of WAMS in power system dynamic signal acquisition and application of laid a foundation. Under normal circumstances, the WAMS system records of power system dynamic signal contains all kinds of noise, the dynamic signal in power system has a serious effect in application. Therefore, we should adopt effective noise reduction method in dynamic signal noise. The wavelet method can signal time-frequency decomposition, and the different signal in different scale wavelet decomposition with different features. Based on wavelet theory, this paper analyzes and compares the effect of various wavelet noise reduction methods applied in the power dynamic signal.
出处
《科技与创新》
2014年第19期127-129,共3页
Science and Technology & Innovation
