一种新的比相式电抗型距离继电器算法  

A novel algorithm of reactance type distance relay based on phasor comparison

作　　者：魏佩瑜[1] 于桂音[1] 张铭新 哈恒旭[1] 

机构地区：[1]山东理工大学电气与电子工程学院,山东淄博255049 [2]山东龙口市电业公司生计部,山东龙口265701

出　　处：《继电器》2006年第8期13-16,49,共5页Relay

摘　　要：对测量阻抗型和相量比较型两种类型的电抗距离继电器的抗稳态超越的能力进行了研究,主要包括负荷的影响和同相问题的研究。同时,构造了一个新的电抗型距离继电器判据和算法,该算法具有方向性,且不受负荷和同相问题的影响,解决了由于负荷和同相问题引起的稳态超越现象,提高了保护动作的可靠性。电磁暂态仿真结果证明该原理具有防止负荷和同相问题引起的稳态超越和保护范围不足的问题。The principle and algorithm of reactance-type distance relay can be classified into two categories： the measuring fault reactance type and phasor comparing type. The capability of resisting the stable overreach and underreach caused by load and ＂in phase problem＂ is analyzed for the two types of reactance relay. At the same time, a new algorithm of reactance-type distance relay is proposed. The EMTP simulation tests show that the new algorithm has the property of directionality as well as does not lead to overreach and underreach caused by the former factors.

关 键 词：输电线路 电抗型距离继电器 稳态超越 

分 类 号：TM581[电气工程—电器]