基于频谱分析单相接地故障选线系统通信方式的研究  

Research on Communication Mode of Single-phase Earth-fault Selection System Based on Frequency-spectrum Analysis

作　　者：陈晓英[1] 任国臣[1] 冮明颖[1] 王德江[1] 

机构地区：[1]辽宁工业大学信息科学与工程学院,辽宁锦州121001

出　　处：《辽宁工学院学报》2007年第4期218-220,共3页Journal of Liaoning Institute of Technology(Natural Science Edition)

基　　金：辽宁省教育厅高等学校科学研究项目(2004D046)

摘　　要：以基于频谱分析的小电流接地系统单相接地故障选线为背景,阐述了二总线电流环实现主从式多机通信的设计理念,详细分析了二总线电流环通信的实际应用电路及其软件控制时序,得出在电磁干扰严重情况下二总线电流环通信方式可靠性高。Based on single-phase earth-fault selection in small current neutral grounding system studied by the frequency-spectrum analysis,a designing theory on the host slave communication having been completed by the two-line bus current loop was expounded.The application circuit and the software time sequence controlling of two-line bus current loop communication were also analyzed in detail.The results expatiates that the communication mode security of two-line current loop is excellent when the electromagnetic interference is bad.

关 键 词：二总线电流环 小电流接地系统 交叉控制 短路法 

分 类 号：TM769[电气工程—电力系统及自动化]