电测与仪表2016，Vol.53Issue(14)：16-21,33,7.
利用基波相量变化率的快速选相方法
A fast-speed phase selection method based on the change rate of fundamental current phasor
摘要
Abstract
In view of the problem that the existing fault phase identification methods can ’ t identify all fault types quickly and reliably , the phase selection method based on change rate of fundamental current phasor is proposed in this paper .When the short-circuit fault occurs , the change rate of fundamental current phasor of faulty phase , which is affected by the decaying DC component and the fundamental frequency fault component , increases rapidly , and that of non-faulty phase is small .If grounding fault occurs , the change rate of fundamental current phasor of zero sequence current is affected by the decaying DC component and the fundamental frequency fault component and increases rapid -ly;otherwise , its value is near zero .Then , the faulted phases can be identified quickly and reliably according to the characteristics of the change rate of fundamental current phasor under various conditions .The simulation data from PSCAD/EMTDC is applied to verify and test the proposed algorithm , the simulation results show that the algorithm which has high reliability can identify any types and phases of faults in a quarter cycle .关键词
输电线/故障选相/故障分量/基波电流/相量变化率Key words
transmission line/fault phase selection/fault component/fundamental current/change rate of the phasor分类
信息技术与安全科学引用本文复制引用
刘兴茂,李邦云,程宏波..利用基波相量变化率的快速选相方法[J].电测与仪表,2016,53(14):16-21,33,7.基金项目
国家自然科学基金资助项目（51267004）；江西省科技厅工业支撑项目 （）
