基于I扇区的三电平SVPWM算法研究

Research on three-level SVPWM algorithm based on sector I

针对一般三电平SVPWM算法逻辑繁琐和计算量大等问题,给出了一种基于I扇区的三电平SVPWM算法,避免了相同算法在不同大扇区的重复计算,同时,还提出一种简单易行的小扇区判定算法,简化判定步骤。在仿真软件中实现了三电平SVPWM算法,建立了使用DSP控制的T型三电平逆变器样机,通过仿真与实验对算法的性能进行了验证。

For the logic complication and large amount of calculation in general three-level SVPWM algorithm,the threelevel SVPWM algorithm based on sector I is given,which avoids the repeated computation in different sectors of the same algorithm. Meanwhile,a simple small sector decision algorithm is proposed in this paper,and the decision steps are simplified. Three-level SVPWM algorithm was realized in the simulation software,and the use of DSP control T-type threelevel inverter prototype was established,and the performance of the algorithm is verified through the simulation and experiment.