基于广域测量技术的含DG配电网保护研究  

Research of Distribution Network Protection with DG Based on Wide- area Measurement Technology

作　　者：张翠娟 古昕 吕飞鹏[2] 

机构地区：[1]国网德阳供电公司,四川德阳618000 [2]四川大学电气信息学院,四川成都610065

出　　处：《四川电力技术》2016年第4期24-28,79,共6页Sichuan Electric Power Technology

摘　　要：随着越来越多分布式电源接入配电网,分布式电源对配电网造成了一系列影响,其中,对分布式电源上游区域的保护影响更大。上游区域故障时或同母线馈线区外故障时,分布式电源上游区域的保护可能会出现拒动或者误动等情况。在已有广域测量技术的前提下,提出了一种新的保护算法。该算法利用广域保护的思想和采集的电流信息值,对上游区域的电流保护整定值实时修改,保证了保护的选择性。仿真验证了该方法的可行性。As more and more distributed generation integrated with distribution network, it has a series effect on the distribu-tion network, among which it influences the protection of the upstream area of distributed generation greatly. When there is the fault in upstream area or out - area fault of busbar and feeder, the protection of upstream area of distributed generation may fail to operation or have misoperation. Under the premise of the existing wide - area measurement technology, a new algorithm of protection is proposed. The algorithm is using the ideas of wide - area protection and the information of the collected current value, which modifies the current protection setting value of the upstream area timely so as to ensure the selectivity of protec-tion. The simulation proves the feasibility of this method.

关 键 词：WAMS 分布式电源 配电网 电流保护 

分 类 号：TM732[电气工程—电力系统及自动化]