电网故障阻抗轨迹动态分析的软件实现

电网故障阻抗轨迹动态分析(简称阻抗轨迹分析)是基于故障时刻智能电子设备(IED)及故障录波器记录下的COMTRADE文件,对录波文件智能解析,采用全周差分傅氏算法及阻抗向量计算法,逐点计算ZA、ZB、ZC、ZAB、ZBC、ZAC6种阻抗值,依据各阻抗值及设置的门槛值在PC机上动态绘制阻抗轨迹。阻抗轨迹分析软件采用VisualC 6.0编制,运用面向对象编程(OOP)思想进行软件设计,以Script文件格式动态编辑图形格式、属性,具体、形象地反映出继电器阻抗轨迹动作特性。

Dynamic analysis of power net fault impedance track by software implementation

The DAPFIT(Dynamic Analysis of Power net Fault Impedance Track) is based on the COMTRADE files recorded by IEDs and fault recorders. The intelligent analysis of recorded files is carried out,full-cycle Fourier algorithm and impedance vector algorithm are used to calculate ZA,ZB,ZC,ZAB,ZBC,ZAC in point-by-point way,and the impedance track is drawn dynamically on PC according to impedance values and settings. The impedance track analysis software is programmed by Visual C 6.0 with OOP design concept,and the graph format and property are edited in Script file format to reflect the action performance of relay impedance track visually and vividly.