空间电压矢量PWM控制的优化算法及其仿真实现

An Optimization and Its Simulation Algorithm for Space-vector PWM

基于传统三电平逆变器空间电压矢量PWM技术的研究经验,提出了1种优化的空间电压矢量PWM控制算法。该方法是将参考电压矢量分解成基矢量和二电平矢量,然后利用二电平的空间矢量调制算法来控制二电平分量,因此简化了建模过程,提高了仿真效率。最后,在Matlab/Simulink环境下分别对传统算法和优化算法进行仿真,比较后验证了优化算法的可行性和优越性。

This paper proposes an optimization space-vector pulse width modulation on the basis of traditional three-level PWM method. With this method, the reference voltage vector is divided into two parts, based vector and two-level vector, then the two-level vector is synthesized by conventional two-level space vector modulation method, so the process of modeling is simplified and the simulation is accelerated. To verify the superiority and effectiveness of this optimization algorithm, the traditional modulation algorithm and the new algorithm simulation is implemented respectively under Matlab/Simulink environment. The simulating results are analyzed and compared.