电气设备局部放电检测和信号去噪技术综述

Review on Detection and Signal De⁃noising Technology of Partial Discharge in Electrical Equipment

局部放电检测作为电气设备的非破坏性试验,能及时反映电气设备的绝缘状况,一直是国内外的研究热点。首先介绍了局部放电检测技术的电测法、声测法、光测法和化学检测法,然后介绍了局放信号的几种去噪技术,最后对局部放电检测和去噪技术的发展作了展望。

As a non⁃destructive test of electrical equipment,partial discharge(PD)detection can reflect the insula⁃tion condition of electrical equipment promptly.The paper introduces the PD detection technique like electrical meas⁃urement,acoustic measurement,optical measurement and chemical detection,and then introduces several PD signal de⁃noising technologies.Finally,the prospect of partial discharge detection and de⁃noising technology is prospected.