变电站谐波状态估计程序，通过量测两个节点的电压和电流，计算得到另一个节点的电压电流相量，两个量测节点相角不同步，以一个节点相角为基准。-Substation harmonic state estimation procedure, by measuring the voltage and current of two nodes, one node is calculated voltage and current phasor, two phase angle measurement node