四开关管三相逆变器控制算法研究

摘要

Comparing with six switch three phase inverter(SSTPI) ,four switch three phase inverter(FSTPI) has its u-nique advantage in the control of low cost motor because it is a novel inverter with only four switches. The control algorithms for FSTPI were researched,including the basic voltage space vector,the calculation method of switch's operating time, the method of sector determination and wave-making. The simulation mode of PMSM based on FSTPI was built. The simulation verifies that the PMSM can be controlled well by the control algorithms for FSTPI.%和六开关三相逆变器相比,四开关管三相逆变器是一种新型逆变器结构.由于其只有四个开关管,在低成本电机控制中具有独特的优势.对FSTPI控制算法进行深入研究,研究了基本电压空间矢量、开关管作用时间的计算方法、扇区的确定以及发波方法；建立基于FSTPI算法的永磁同步电动机控制仿真模型,验证了FSTPI控制算法可实现对永磁同步电动机的良好控制.