【摘要】 介绍了一种新型的故障定位系统，该系统采用了输电线路双端电流电压信号进行故障定位，从而消除了在对双侧电源线路进行故障定位时由过渡电阻所引起的误差。在文中，首先推导了这种新型故障定位算法的数学模型；然后介绍了其框图，系统中采用了全球卫星定位系统（ＧＰＳ） 作为本地和远端信号的同步信号；第三部分介绍其软硬件的流程图；最后部分是数字仿真结果和分析以及结论。数字仿真的结果表明本算法是一种高精度和高效率的方法更多还原

【Abstract】 A new fault location system using two terminal currents and voltages is presented in the paper, which can remove the error caused by fault resistance. The mathematical model of the new fault location algorithm is explained in the first part of the paper, then the numerical scheme is given in the second part, as GPS (Global Positioning System) is used as synchronization signal of the local and remote signals, the structure and functions of GPS is also briefly explained in the part. After that the hardware structure and software flow chart are presented in the third part. Then the numerical simulation results and some analysis are presented, from the simulation results we can see the accuracy and effectiveness of the new method. Some conclusions are drawn in the final part in the paper.更多还原