一种分布式母线保护的新型通信方案  

A New Communication Scheme for Distributed Busbar Protection

作　　者：王风光[1] 焦彦军[1] 张新国[1] 周强强[1] 

机构地区：[1]电力系统保护与动态安全监控教育部重点实验室(华北电力大学),河北省保定市071003

出　　处：《电网技术》2005年第21期76-78,84,共4页Power System Technology

摘　　要：分布式微机母线保护将成为微机型母线保护的主要发展方向,实现分布式微机母线保护需要解决实时通信和同步采样的问题。基于此,文章提出了一种新型光纤双环通信网, 各保护单元之间采用令牌环式的通信标准,并且采用了一种软硬件相结合的同步对时方案。该通信网络通信速率高,结构简单,可靠性高,性能优越,同步方法精度高,可满足分布式母线保护的要求。Distributed microcomputer based busbar protection will become principal trend of microcomputer based busbar protection. To implement distributed microcomputer based busbar protection, it is necessary to solve the problems in real-time communication and synchronous sampling. For this purpose, a new optic-fiber double-loop communication network is proposed, in which the token-ring communication standard is adopted among protection units and a synchronous time comparison scheme based on the integration of soft...

关 键 词：母线保护 分布式 光纤通信 同步采样 微机保护 

分 类 号：TM773[电气工程—电力系统及自动化]