VOLTAGE SAG SOURCE LOCATION: A NEW METHOD BASED ON CURRENT INFORMATION

摘要：

In this paper a new method is presented for voltage sag source location based on directional overcurrent (DOC) relay information.In this method the current (during sag and presag) is the only variable which is measured by relay/power quality (PQ) monitor.Then relative location of voltage sag source is determined using the variation of the magnitude of measured current positive-sequence component and the sign of its phase-angle jump.The performance of the proposed method is compared with distance relay (DR) and phase change in sequence current (PCSC) methods by using PSCSD/EMTDC and MATLAB on a large scale actual regional network including transmission and subtransmission levels.The results show the good performance of the new method and its unique applicability in cases where only currents are recorded.

关键词： Power quality (PQ) voltage sag (dip) source location phase-angle jump

作者: YOUNES MOHAMMADI ATIEH DELAVARI MOHAMMAD H.MORADI

作者单位: Bu Ali Sina University Hamadan,Iran Bu Ali Sina University Hamden,Iran

会议类型: 国际会议

会议名称: 2011 3rd International Conference on Computer Technology and Development(2011第三届计算机技术与发展国际会议 ICCTD2011)

会议地点: 成都

会议语种:英文

页码: 2377-2382

在线出版日期: 2011-11-25（万方平台首次上网日期，不代表论文的发表时间）