利用解二次方程法的故障测距仿真计算

Analogue Computation of Cable Fault Location Based on Quadratic Equation Method

分别利用电力系统正序阻抗、零序阻抗对由系统模型和由故障电流相位修正算法构造的二次方程进行仿真计算，并作了比较分析。在此基础上对于接地短路提出能够识别真根且具较高精度的测距算法。

Analogue computation and analytic comparisons are made with quadratic equations which are constructed from algorithm of the power system model and phase corrected by fault current with utilization of positive sequence and zero sequence impedances of the power system respectively. Furthermore, algorithm for grounding fault location is proposed that can identify real roots and With hign accuracy.