基于IED的高容错性广域后备保护算法

doi:10.11985/2017.12.002

摘要/Abstract

摘要：

提出一种基于智能电子设备（IED）的高容错性的广域后备保护算法,用于变电站间分布式广域后备保护系统。该系统根据保护范围内的故障距离I、II段信息,和故障方向信息通过容错性判别确定故障位置。该算法需要的信息量少,原理简单,可靠性高,在存在各种信息缺失、错误及通信中断情况下仍具备很好的适应性,可极大地提高后备保护系统的性能。

关键词: 广域后备保护, 高容错性, 分布式广域后备保护系统, 信息缺失, 通信中断

Abstract:

A wide area backup protection algorithm with high fault-tolerance performance based on intelligent electronic device (IED) is proposed to implement the distributed wide area backup protection system．The distributed wide area backup protection system can locate the fault element with fault-tolerance judgment according to fault direction and the zone Ⅰ and Ⅱ of fault distance protection information within the protection coverage．The proposed algorithm is simple and with good fault-tolerance capability,the results of a case study show that it has good adaptability in case any one or two of protection elements mal-operates,fails to operate or loss of fault information since communication outage,it can increase performance of backup protection system greatly．

Key words: Wide area backup protection, high fault-tolerance performance, distributed wide area backup protection system, loss of fault information, communication outage

中图分类号:

TM773

宋功益,江建明,李砚海. 基于IED的高容错性广域后备保护算法[J]. 电气工程学报, 2017, 12(12): 11-17.

Song Gongyi,Jiang Jianming,Li Yanhai. A High Fault-Tolerance Performance Algorithm of Wide Area Backup Protection Based on IED[J]. Journal of Electrical Engineering, 2017, 12(12): 11-17.

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参考文献 10

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保护范围属性	关联保护IED	保护IED所在线路
近后备保护	19,20	L10
远后备保护	3,4;9,10; 13,14; 21,22;23,24	L2,L5,L7, L11,L12

保护线路	保护IED	保护IED判别结果	A_F	F_out	决策结果
L10	19	1/1/+1	1	1.5	故障
L10	20	0/1/+1	0.5	1.5	故障
L2	3	0/1/+1	0.5	-0.5	正常
L2	4	0/0/-1	-1	-0.5	正常
L5	9	0/1/+1	0.5	-0.5	正常
L5	10	0/0/-1	-1	-0.5	正常
L7	13	0/1/+1	0.5	-0.5	正常
L7	14	0/0/-1	-1	-0.5	正常
L11	21	0/0/-1	-1	-1	正常
L11	22	0/0/+1	0	-1	正常
L12	23	0/0/-1	-1	-1	正常
L12	24	0/0/+1	0	-1	正常

保护线路	保护IED	保护IED判别结果	A_F	F_out	决策结果
L10	19	0/0/ 0	0	0.5	特殊情况
L10	20	0/1/+1	0.5	0.5	特殊情况

保护线路	保护IED	保护IED判别结果	A_F	F_out	决策结果
L2	3	0/1/+1	0.5	0.5	特殊情况
L2	4	0/0/0	0	0.5	特殊情况

保护线路	保护IED	保护IED判别结果	A_F	F_out	决策结果
L10	19	0/0/0	0	0	特殊情况
L10	20	0/0/0	0	0	特殊情况