形成电力系统节点电纳矩阵程序,本方法采用的直流潮流模型-The formation of electric power system node admittance matrix procedures, the method used in DC-trend model

基于PSCAD 4.5搭建的IEEE标准2区4机11节点模型，参数配置正确，潮流计算结果正确。-PSCAD 4.5 build local area based on IEEE 4 2 11 node model, all the parameters have been configured correctly, flow calculation results are accurate.