三电平APF简化空间矢量调制算法研究

针对有源电力滤波器的PWM调制方法,采用了基于两电平的简化三电平空间电压矢量调制算法,分别对常规三电平空间电压矢量调制方法与简化调制方法进行了分析,通过对比,两个调制算法求得的作用时间和基本作用矢量完全相同,表明简化算法不仅可使计算简化,而且能达到和常规方法完全相同的输出特性,仿真分析结果也进一步表明了简化方法的有效性。

Simplified Space Vector Modulation Algorithm Research for Three-level APF

In view of the PWM modulation method of the active power filter, the simplified three-level space voltage vector modulation algorithm based on two-level has been adopted in this paper.The conventional three-level space voltage vector modulation algorithm and the simplified modulation method are separately analyzed.By comparing the two algorithms, it is found that the obtained function time and basic function vector of them are exactly the same , so it is shown that the simplified algorithm can not only make the computation simple, but also achieve the same output characteristic to the conventional algorithm.The simulation analysis result is a further indication of the effectiveness of the simplified method.