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.
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)
关键词
二总线电流环
小电流接地系统
交叉控制
短路法
two-line current loop
small current neutral grounding systems
cross-over control
short-circuited method
