摘要
针对现有IT系统绝缘检测装配存在的响应速度慢、选相精度不高的问题,设计了一套基于STM32的IT系统绝缘故障检测与选相装置。分析了几种常用绝缘检测方法的优缺点,提出了一种改进的、带选相功能的直流注入绝缘检测方法。理论分析和试验结果表明所提方法的测量范围在1~999 kΩ,精度在5%以内,并能准确进行选相。
For the problems of slower response speed and low precision of fault phase selection,an insulation monitoring and fault phase selection device based on STM32 was designed for IT system. An improvement method,which uses DC injecting scheme,with the function of phase selection was presented after analyzing the frequently-used methods of insulation property detection for IT system. The theory analysis and test results show that the measure range of this method is one to 999 kΩ,with the accuracy of 5%. Also,this method can load fault phase accurately.
作者
王聪聪
肖伸平
罗昌胜
张晓虎
WANG Congcong;XIAO Shenping;LUO Changsheng;ZHANG Xiaohu(Key Laboratory for Electric Drive Control and Intelligent Equipment of Hunan Province, School of Electrical and Information Engineering, Hunan University of Technology, Zhuzhou 412007, China)
出处
《电器与能效管理技术》
2017年第23期40-43,共4页
Electrical & Energy Management Technology
基金
国家自然科学基金项目(61672225)
科技部火炬计划项目(2015GH712901)
湖南省研究生科研创新项目(CX2017B685)
湖南省教育厅优秀青年项目(16B069)
湖南省教育厅重点项目(14A038)
关键词
IT系统
绝缘监测
故障选相
直流注入
IT system
insulation monitoring
fault phase selection
DC injecting scheme
