摘要
针对电力变压器现场监测的局放信号往往包含各种干扰的问题,提出使用数字陷波器去除局放信号中的周期窄带干扰,并使用MATLAB 7.0进行了仿真研究.仿真实验表明使用这种方法能有效地去除局放信号中的周期窄带干扰.
In this paper, the digital trap filter is designed to denoise periodical narrow-band noises in partial discharge, according to the fact that there are several kinds of noises in the partial discharge signal. A simulation research is given with the matlab 7.0 tools. The result of simulation shows that the method can complete the work of anti-interference well.
出处
《长沙电力学院学报（自然科学版）》
2006年第1期26-28,36,共4页
JOurnal of Changsha University of electric Power:Natural Science
关键词
局部放电
数字陷波器
周期窄带干扰
partial discharge
digital trap filter
periodical narrow-band noise
