基于负序功率方向比较原理的广域继电保护算法  

A wide-area relaying protection algorithm based on negative sequence power direction comparison principle

作　　者：金恩淑[1] 汪有成 王红艳[2] 陈喜峰[3] 王星棋 

机构地区：[1]东北电力大学电气工程学院,吉林吉林132012 [2]国网通辽供电公司,内蒙古通辽028000 [3]河南省电力公司许昌供电公司,河南许昌461000 [4]吉林省延边朝鲜族自治州广播电视台,吉林延边133000

出　　处：《电力系统保护与控制》2013年第22期1-6,共6页Power System Protection and Control

摘　　要：提出一种基于负序功率方向比较原理的广域继电保护算法。根据智能电子设备(Intelligent Electric Device,IED)的安装位置,形成包含有母线及线路在内的IED关联域。系统发生故障后,通过IED在关联域内对故障信息的采集和共享,结合定义的故障判别原则,确定故障的位置;并根据IED预定的动作策略,快速地切除故障。该算法既能做系统发生故障后快速动作的主保护,同时又兼顾后备保护的功能。通过仿真验证了该算法的有效性,表明该算法可以很好地实现主保护和后备保护的功能。A wide area protection algorithm based on negative sequence power direction comparison is proposed. The special associated intelligent electronic devices （IEDs） zones which contain buses and transmission lines are created according to the installation location of the IEDs. When a fault occurs in power network, combining the fault information collecting and sharing from associated zones with the fault discrimination principle defined in the paper, the IEDs can identify the fault position and cut the fault according to the predetermined action strategy. This algorithm can be used as a primary protection for quick action after a system fault, while possessing the back-up protection function. The results of case study show that the proposed algorithm can achieve the primary protection and back-up protection function perfectly, verifying the effectiveness of the algorithm.

关 键 词：广域继电保护 负序功率 方向比较 关联域 IED 

分 类 号：TM77[电气工程—电力系统及自动化]