分布式微机母线保护的探讨  

A STUDYOFDISTRIBUTED DIGITALBUSPROTECTION

作　　者：李营[1] 杨奇逊[2] 

机构地区：[1]东北电网调度通信中心,沈阳110006 [2]华北电力大学,北京100085

出　　处：《电力系统自动化》1999年第21期45-47,共3页Automation of Electric Power Systems

摘　　要：对母线保护运行情况分析表明，常规母线保护装置本身的可靠性并不低，重要的是正确使用。通过对常规母线保护与微机母线保护特点进行比较，指出了集中式微机母差保护的大规模应用尚需要时间，而分布式微机母线保护将成为微机型母线保护发展的主要方向。根据微机母线保护的特点，提出了实现分布式母线保护的方向式和无主站式２ 种方案。分析表明，方向式母线保护是可行的，无主站式母差保护结构简单，硬件冗余度高，性能优越。Operation analysis of bus protection show s that norm albus protection relay has high reliability, and the m ain problem is correct operation. By com parison of norm al bus protection w ith digital bus protection, it is pointed out that extensive application of integrated digital bus differential protection m ay need a long period, and distributed digital bus protection willbe them ajordevelopm enttrend ofdigitalbusprotection. Based on thecharacteristicsofdigitalbusprotection, this paper presents tw o m ethods ofdistributed busprotection. One isdirectionalprotection, anotherisdifferentialprotection w ithoutm ain unit. Itis feasible to use directionaldigitalbus protection. And bus differentialprotection withoutm ain unitis excellent.

关 键 词：母线保护 微机保护 继电保护 电网 

分 类 号：TM773[电气工程—电力系统及自动化]