基于三相坐标系的SVPWM算法研究与仿真

Research and Simulation of SVPWM Based on Three-Phase Axes

本文在对经典空间矢量脉宽调制(SVPWM)方法进行分析后提出了一种基于三相坐标系的两电平三相电压源电机控制器用SVPWM调制方法。对经典SVPWM算法和基于三相坐标系的SVPWM算法进行了建模仿真分析。仿真结果显示,基于三相坐标系的SVPWM算法与经典SVPWM算法的A相相电压调制波和FFT分析数据一致,且不需要计算扇区及复杂的三角函数运算,简单易于工程运用。

Analyzed on classical space vector pulse-width modulation (SVPWM) algorithm,A SVPWM algorithm with two-level based on three-phase voltage-source converter is proposed in this study.Simulation models of the two SVPWM algorithms are built and simulated.simulation results show that the new SVPWM are same effects with classical SVPWM algorithm by analyzing the phase voltage modulated wave and FFT data,and also the new SVPWM is easier to operate.