真型多状态GIS局部放电UHF信号源研究  

Research on UHF signal source of partial discharge in true multi-state

作　　者：吴建蓉 杨涛 张国治 张晓星[2] 张军[3] Wu Jianrong;Yang Tao;Zhang Guozhi;Zhang Xiaoxing;Zhang Jun(Electric Power Research Institute,Guizhou Power Grid Co.,Ltd.,Guiyang 550000,China;School of Electrical Engineering,Wuhan University,Wuhan 430072,China;Chongqing University,Chongqing 400044,China)

机构地区：[1]贵州电网有限责任公司电力科学研究院,贵阳550000 [2]武汉大学电气工程学院,武汉430072 [3]重庆大学,重庆400044

出　　处：《电测与仪表》2018年第20期102-107,共6页Electrical Measurement & Instrumentation

基　　金：贵州电网有限责任公司电力科学研究院科技项目(GZ2014-2-0039)

摘　　要：针对电网公司广泛装配的特高频(UHF)局部放电检测系统无法进行有效性校验问题,以GIS典型缺陷类型下的UHF信号谱图为基础,对不同缺陷类型下不同放电强度的UHF谱图信号分别进行特征提取和优化,并根据该特征对UHF谱图信号进行0~50 V范围内的编码优化,据此设计出了能够模拟多种典型绝缘缺陷下不同放电程度的真型多状态GIS局部放电信号源,并进行了实验测试,测试效果良好。For the ultra-high frequency(UHF)PD detection system which is widely assembled by Power Grid Corp,it is always impossible to verify the validity.Based on the UHF signal spectrum of GIS typical defect type,the feature extraction and optimization of UHF spectrum signals under different defect types are carried out respectively.And according to this characteristic,the coding optimization of UHF signal spectrum is carried out in 0~50 V range.A true GIS PD signal source is designed to simulate the UHF signals of various typical insulation faults and tested,the test result is good,and it shows a good application prospect in the checkout of the UHF detection system in GIS.

关 键 词：真型 多状态 GIS PD UHF 信号源 

分 类 号：TM933[电气工程—电力电子与电力传动]