【摘要】 本文就故障电流分量相位修正阻抗法中系统参数变化对测距精度的影响作了全面分析。大量的数字仿真表明,相位修正阻抗法中由于采用了故障电流分量和迭代计算,系统数参大范围变化时对测距精度影响不大,测距偏差一般在2％以下。更多还原

【Abstract】 This paper comprehensiv analyzes the fault location accuracy of power transmission lines effected by variation of system parameters in the impcdonce method modified by phase angle of the fault current components. A lot of digital simulation tests show that effects are small and usurlly the errors of measuring distance are less than 2% when the system parameters vary in a alrg erange, because the fault current components and iterative method have been used in the impedance method modified by phase angle.更多还原