面向中低压馈电线路的区域保护装置设计与仿真  

Design and simulation of area protection device for middle and low voltage feeder line

作　　者：代运滔 Dai Yuntao(Zunyi Power Supply Bureau,Guizhou Power Grid Co.,LTD.,Zunyi 563000,China)

机构地区：[1]贵州电网有限责任公司遵义供电局

出　　处：《电子技术应用》2020年第3期71-75,共5页Application of Electronic Technique

摘　　要：针对中低压馈线线路中分支线路众多、多端线路电流差动保护应用受限的问题,提出了一种面向中低压馈电线路的区域保护装置,并分别对区域保护装置结构、硬件电路、保护判据进行了设计。实验仿真结果表明,所提出的具有自适应能力的区域保护装置可有效判别保护区域内的相间故障,并对发生在馈线分支的故障实施有效的隔离。In view of the problem that numerous branch lines in medium and low voltage feeder lines limit the application of multiterminal line current differential protection, a new area protection device for middle and low voltage feeder line is proposed.And the structure, hardware circuit and protection criterion of the regional protection device are designed.Experimental simulation results show that the proposed regional protection device with adaptive ability can effectively identify the phase faults in the protection area and effectively isolate the faults in feeder branches.

关 键 词：配电网 馈电线路 区域保护 故障隔离 

分 类 号：TN06[电子电信—物理电子学] TM774[电气工程—电力系统及自动化]