摘要
提出了一种配电网馈电线路的多断路器间纵联保护方案,在该方案中保护设备之间的通信采用了以公用移动CDMA系统为基础的通信模型。为满足继电保护的选择性、速动性、灵敏性和可靠性的要求,不仅修改了多路通信同步技术以大大降低用户间的干扰,还提出了快速建立通信链接的方案。最后对保护的可靠性和快速性进行了评价,结果表明该方案能够实现馈线保护的全线速动。
A pilot protection scheme for feeders among multi circuit breakers in distribution network is proposed, in which the communication among protection devices adopts the communication model based on public mobile code division multiple access （CDMA） system. To meet the requirement of reliability, selectivity and quick action of protective relaying, Not only the synchronization technique of multi-channel communication is modified to evidently reduce the interference among users, but also a scheme to quickly establish communication linkage is put forward. At last, the reliability and quickness of the proposed pilot protection are evaluated, and evaluation results show that using the proposed scheme the whole line quick-action of feeder protection can be realized.
出处
《电网技术》
EI
CSCD
北大核心
2006年第14期88-92,共5页
Power System Technology
关键词
码分多址(CDMA)
允许式超范围纵联保护
基站
可靠性
馈线
code division multiple access （CDMA）
permissive overreaching transfer trip （POTT）
base station（BS）
reliability
feeder
