Labview下基于高阶PDE的局部放电信号去噪

Denoising of PD signal based on high order PDE in Labview

局部放电检测是预防电力事故的有效手段,因现场强烈的电磁干扰,提取的局部放电信号往往混入了大量的噪声。因此噪声抑制是局部放电检测中的一个重要环节。借鉴偏微分方程(PDE)在图像噪声抑制中的良好表现,将其引入到局部放电信号的去噪中,并在Labview中进行了实现。结果表明,偏微分方程对噪声具有良好的抑制作用。

Partial discharge detection is an effective way to prevent power accidents.Because of the strong electromagnetic interference,the extracted PD signal often mixes with a lot of noise.Therefore,noise suppression is an important part of PD detection.Based on the good performance of PDE in image noise suppression,PDE is introduced into PD signal de-noising and implemented in Labview.The results show that PDE has a good effect on noise suppression.