光学方法在电力电缆局部放电测量中的研究现状  

Application of Acoustic-Optical Partial Discharge Detection in Power Cable

作　　者：吴延坤[1] 喻岩珑[1] 武炬臻[1] 王伟[1] 王赞[1] 白宏伟 黄晓龙 

机构地区：[1]华北电力大学电气与电子工程学院,北京102206 [2]云南省电机工程学会,云南昆明650011 [3]宁夏省供电公司中卫供电局,宁夏中卫755000

出　　处：《电网与清洁能源》2011年第8期7-12,18,共7页Power System and Clean Energy

基　　金：国家重点基础研究发展计划项目(973项目)(2009CB-724506)

摘　　要：介绍了光学传感器的原理及其用于电气设备局部放电监测的依据,重点比较了基于Michelson、Mach-Zehnder和Fabry-Perot3种干涉原理的光纤传感器在电气设备局部放电检测中的应用。结合电力电缆局部放电超声波检测法目前存在的问题及发展方向,推荐了利用光纤Fabry-perot干涉法实现电力电缆绝缘在线监测的构想。The paper presents both the principles of the optic sensors and the basis, for detecting partial discharge in electrical apparatus. Comparisons among fiber-optic sensors depending on different principles as Michelson, Mach-Zehndcr and Fabry-Perot are discussed according to their applications in detecting partial discharge in electrical apparatus. However, considering the existing problems of ultrasonic detection method for detecting partial discharge in power cables as well as its development, researchers recommend cable insulation monitoring by means of acoustic-optical detection based on the optical fiber Fabry-Perot interference technology.

关 键 词：电力电缆 局部放电 光-振动法 Fabry-perot干涉 

分 类 号：TM854[电气工程—高电压与绝缘技术]