Detection Method for Abnormal Leakage Current of Substation Bus Arrester Based on Fourier Transform Algorithm
In order to reduce the safety risk of substations,a method based on Fourier transform algorithm was proposed for detecting abnormal leakage current of substation busbar surge arresters.After collecting the operating current data of the substation busbar lightning arrester using wireless sensors,the substation busbar current was smoothed;after removing the interference noise contained inside,the harmonics in the operating current of the substation busbar arrester were decomposed using a recursive Fourier transform method.The harmonic was the abnormal detection result of the leakage current of the substation busbar arrester.The experimental results show that the pre-processing ability for noise reduction of the operating current of the substation busbar arrester is strong,and its ability to detect abnormal leakage current of the substation busbar arrester is strong too,which has a better application effect.
万方数据
维普
