线形直流电路网络,支路电压电流计算,C++程序-Computation of voltage and currents of branches in DC lather network

基于51单片机的直流电机电压控制的PID控制算法-The control algorithm of 51 single chip microcomputer DC motor voltage control based on PID。

用DFT 函数计算电压u, 电流i的基波(f1=50 Hz)的有效值和相位; 用FFT函数分别计算电压u和电流i 所包含的直流,基波和谐波的有效值和初相角; 可计算基波(f1=50 Hz)和各次谐波的功率p和功率因数con?.(The effective value and phase of fundamental wave (f1 = 50 Hz) of voltage U and current I are calculated by DFT function. The effect