单相逆变器仿真，控制及调制均采用S函数编写，完全实现离散化。控制算法及倍频单极性发波，并采用仿DSP规则采样法发波。-Simulation of single phase inverter, control and modulation are used S function written, realize discrete completely. The control algorithm and the frequency of unipolar hair wave, and the use of imitation DSP rule wave sampling method.