基于优化SVPWM永磁同步电机的研究  

Study of PMSM Based on Optimized SVPWM

作　　者：樊英杰[1] 张开如[1] 韩璐[1] 伊利峰 顾华利 

机构地区：[1]山东科技大学电气与自动化工程学院,山东青岛266590

出　　处：《煤矿机械》2015年第8期80-83,共4页Coal Mine Machinery

基　　金：山东科技大学研究生创新基金(YC140211)

摘　　要：介绍了永磁同步电机(PMSM)的系统结构和基本原理。针对永磁同步电机逆变器中传统电压空间矢量(SVPWM)算法的缺陷性,提出了一种优化SVPWM调制方法。该方法利用电压空间矢量旋转的幅角来判断扇区,并由相电压的电压差值计算基本电压矢量的作用时间,完全省略了坐标变换和三角函数计算,化简了SVPWM算法步骤。经过Matlab/Simulink建立仿真模型,可以证明该优化SVPWM算法的正确性和可行性,为改进永磁同步电机硬件设计提供了依据。The structure and the basic principle of PMSM were presented. Given the shortage of the traditional space vector pulse width modulation （SVPWM） algorithm applied in PMSM inverter, this paper puts forward an optimized SVPWM, by which the sector can be judged according to the rotating argument of voltage space vector, and the function time of basic voltage vector can be calculated based on the 3 phase voltage difference computation. Compared with the former two methods, the coordinate transformation and trigonometric calculation are completely omitted and the algorithm steps are simplified in the optimized SVPWM. The validity can be verified through the simulation with Matlab/ Simulink.

关 键 词：永磁同步电机 逆变器 优化SVPWM 幅角 电压差值 

分 类 号：TM301[电气工程—电机]