一种基于模态分析的隔离开关分合状态判别法  

A Method of Discriminating Disconnector's Closing States Based on Modal Analysis

作　　者：周雨琪 卞超 关为民 杨景刚 徐志科[1] ZHOU Yuqi;BIAN Chao;GUAN Weimin;YANG Jinggang;XU Zhike(School of Electrical Engineering, Southeast University, Nanjing 210096, China;State Grid Jiangsu Electric Power Company Maintenance Branch, Nanjing 211101, China;State Grid Jiangsu Electric Power Company Research Institute, Nanjing 211103, China)

机构地区：[1]东南大学电气工程学院,江苏南京210096 [2]国网江苏省电力公司检修分公司,江苏南京211101 [3]国网江苏省电力公司电力科学研究院,江苏南京211103

出　　处：《电器与能效管理技术》2018年第8期34-37,48,共5页Electrical & Energy Management Technology

摘　　要：针对隔离开关在闭合时存在闭合不到位、过位、触点松动等问题,使用Ansys Workbench软件对不同闭合状态的高压隔离开关GW4D-126D(W)进行有限元分析。利用激光振动仪进行试验模态分析,验证有限元仿真的准确性。通过对不同闭合状态下的振动信号的采集分析,提取出特征参数,最终分辨出分合状态。There are many problems during the closing of the disconnector,such as the closing is not in place,over the place,the contactor is loose and so on. This paper presented the finite element analysis of disconnector GW4 D-126 D（ W） under different closing states performed by Ansys Workbench. The experimental modal analysis using vibrometer was conducted to verify the accuracy of the simulation. Through the analysis of the vibration signal in different closing states,the characteristic parameter can be extracted,and then the closing state can be distinguished by the characteristic parameter like frequency.

关 键 词：高压隔离开关 模态分析 闭合状态 振动模态参数 

分 类 号：TM564.1[电气工程—电器]