针对五相三电平H_Bridge逆变器输出电压空间矢量众多,算法复杂等特点,提出了一种新型的载波SPWM调制方式,该调制方式算法简单,同时,在实际控制过程中,易于通过注入零序分量的方式,对控制算法予以优化,从而获得理想的电压输出波形。理论分析的结果得到了仿真验证。
As to the five-phase three-level inverter, the number of voltage space vectors is so large, which leads to so complicated algorithm. In this paper, the sinusoidal PWM method is adopted, and the total harmonic content of the output voltage can be lower and the algorithm can be easily realized At the same time, during the real control process, zero-order component harmonic wave can be easily injected to optimize the algorithm so that the ideal output voltage can be obtained. The theoretical results are validated by simulation.