摘要
提出了一种基于通讯的保护型馈线自动化方案.配电网络中相邻连接的保护单元相互交换带方向的故障信息,实现馈线故障快速切除,完成故障隔离和系统重构,瞬时性故障通过重合闸恢复供电.在光调制解调器(MODEM)中通过编码将通讯功能和电平(即故障标志)传输功能分开,故障标志传输不需要专用的通道.光MODEM之间的帧传送是自主的,相邻MODEM间能够快速地传送电平信号,实现了点对点的故障信息交换.提出的快速保护方案通过了动模实验,在实际配电系统中运行了2年,对有通讯通道的城市配电系统有实用价值.
A new principle and scheme of a Feeder Automation based system protection using the channel of communication is proposed. The conjoint protection devices exchanging fault signal with direction information and the fault can be cleared instantly. These information can hel Pto isolate the fault zone and restructure the network rapidly. The recover is used for instantaneous faults. The optical MODEM disjoins the SCADA communication and Boolean signals functions using coding technology. So the fault flags can be exchanged rapidly peer-to-peer and special optical cables are not needed. Frames between optical MODEM are sent automatically. This scheme presented is successful through physical simulation experiment and has operated for about two years in a real distribution network.
出处
《重庆大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2006年第7期46-49,63,共5页
Journal of Chongqing University
关键词
馈线自动化
差动保护
故障隔离
系统重构
光调制解调器
feeder automation
differential protection
fault isolation
restructure the network
optical modulator-demodulator
