说明：   距离保护算法仿真主程序 采用故障突变量启动算法和故障突变量选相算法； 根据故障突变量选相结果确定阻抗元件计算或测距元件计算相别
( Distance Protection with Fault Simulation main break variable amount of start algorithm and fault phase selection algorithm mutation mutations in the amount of fault phase selection based on the results of calculations or determine the impedance element relative to other computing devices ranging)