局部放电UHF信号检波及其仿真  

Simulation on the Application of Detection Technique to Detecting UHF PD Signals

作　　者：王伟[1] 李成榕[1] 丁燕生[1] 李信[1] 唐志国[1] 

机构地区：[1]华北电力大学电力工程系,北京102206

出　　处：《高电压技术》2004年第2期32-33,47,共3页High Voltage Engineering

摘　　要：介绍了检波原理及其在超高频 (UHF)局放检测中的应用。计算机仿真验证了应用检波技术后使用 2 0MHz采集卡即可采集到UHF局放信号的峰值和相位信息 ,且误差在工程上完全可接受 ,从而大大降低了对采集系统的要求。The principles of detection technique and it's application to detect PD signals at ultra-high-frequency(UHF) are introduced. Computer simulation shows that the peak and phase characteristics of UHF PD signals can be got by acquisition card with 20 MHz sampling rate using detection technique, which can greatly reduce the demand of the acquisition system. The results show that the application of detection technique to detect UHF PD signals is feasible.

关 键 词：全封闭组合电器 GIS 局部放电 UHF信号 检波 计算机仿真 数据采集系统 

分 类 号：TM853[电气工程—高电压与绝缘技术]