谐振接地电网单相接地故障初始行波分析  

Analysis of Single-phase Ground Fault Initial Traveling Waves of Resonant Grounded Grid

作　　者：侯晓宁[1] 闫光太 侯晓萌[3] 张熙芝 

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]聊城供电公司,山东聊城252000 [3]长春大学管理学院,吉林长春130012 [4]聊城市能源监测站,山东聊城252000

出　　处：《山东电力高等专科学校学报》2013年第4期24-27,共4页Journal of Shandong Electric Power College

摘　　要：谐振接地电网发生单相接地故障时,从故障初始行波产生原理入手,进行了初始行波的模量分析,并推导了初始行波在母线处的传播特性。与健全线路相比,故障所在线路初始零模电流行波幅值最大且极性相反。据此能检测故障线路。ATP仿真验证了其正确性。As resonant grounded grid occur singl-phase ground fault, initial zero-mode current traveling waves are analysed, starting from the generation principle, with traveling wave propagation characteristics on the bus. Compared with healthy lines, the amplitude of zero＇mode current traveling wave of fault line is the biggest and has the opposite polarity. So, the fault line can be detected. ATP simulations prove the traveling wave analysis is correct.

关 键 词：谐振接地电网 单相接地故障 电流行波 

分 类 号：TM744[电气工程—电力系统及自动化]