载波PWM与SVPWM的统一性研究

Study on the Unity of the Carrier PWM and SVPWM

结合谐波注入PWM的概念,对载波PWM与SVPWM的关系进行统一研究。建立调制基波信号、调制信号与空间矢量扇区之间的关系;建立不同零矢量分配方式与谐波注入调制方式的关系,进而讨论研究几种常见的谐波注入PWM;通过Matlab/Simulink搭建调制实现模型并应用在三相逆变电路中,证明了调制波仿真波形及逆变输出结果的分析与理论一致。

Combined with the concept of harmonic injection PWM unified, study the relations between the carrier PWM and SVPWM. Established the relationship between the fundamental signal modulation, modulation signals and space vector sectors; Established the relationship between different zero vector distribution and the harmonic injection modulation, and then discussed several common harmonic injection PWM; Built modulation model by Matlab/Simulink and applied in three-phase inverter, the modulation waveform and inverter output waveform results are consistent with the theoretical analysis.