叠加三倍次谐波的永磁同步电机控制系统研究

Study of Implantation of PMSM Control of Third Times Harmonic

在分析正弦脉宽调制(SPWM)策略基础上,为提高母线电压利用率,重点研究向SPWM三相调制波中叠加三次谐波技术,提出了一种叠加三倍次谐波的调制方法。在Matlab/Simulink中进行仿真,结果表明所提出的叠加三倍次谐波法对电压利用率有明显的改善作用,以此为基础在实验平台上验证了该方法的可行性,为优化SPWM策略提供了一种新方法。

Based on the analysis of sinusoidal pulse width modulation（SPWM） strategy methods, focusing on the existing injection third times harmonic method of wave and amplitude modulation wave in SPWM phase,put forward the optimization method of SPWM and an optimization method are put forward, generating third times harmonic wave modulation is given, simulation using Matlab/Simulink simulation the software, the simulation results show that the improved method of SPWM of three harmonic injection,finally in the prototype experiment,the feasibility of the optimization method of SPWM modulation is verified.