PD Signal Detection Based on Sliding Window Singular Value Decomposition
In the process of partial discharge signal detection due to the small amplitude of partial discharge which is easy to be interfered by noise,it is difficult to detect partial discharge signal and restore waveform under low signal-to-noise ratio.In this pa-per,a partial discharge signal detection method based on sliding window singular value decomposition is proposed.The method uti-lizes the difference between the noise interference signal and the singular value of the partial discharge signal,then establishes the singular value difference sequence through the sliding window segmentation processing to achieve the purpose of noise reduction and restoration of the partial discharge signal.The simulation and measurement results show that the proposed method has more advan-tages than traditional methods in suppressing noise interference and restoring partial discharge signals,and has better stability.It is suitable for the detection and waveform recovery of measured partial discharge signals under mixed noise interference.
sliding windowsingular value decompositionpartial discharge signalsingular value difference sequencenoise suppression
NETL
NSTL
万方数据
维普
