摘要
介绍了PMSM(永磁同步电动机)控制原理,SPWM(正弦脉宽调制)和SVPWM(空间矢量脉宽调制)算法,并建立了基于这两种算法的永磁同步电动机控制系统仿真模型,且对模型运行结果进行了FFT分析。分析结果表明:采用SVPWM算法控制永磁同步电动机定子绕组电流总谐波失真,远远小于采用SPWM建立的模型,在永磁同步电动机数字控制系统中SVPWM是更理想的选择。
In this paper the control principle of permanent magnet synchronous motor is introduced, as well as SPWM and SVPWM algorithm. The PMSM control system simulation models based on these two algorithms are set up and the computed data from the model are analyzed with FFT. The result shows that the total harmonic distortion of stator winding current based on SVPWM is much less than that based on SPWM. So it is a better choice and the SVPWM algorithm is used in PMSM digital control system .
出处
《信息化研究》
2010年第2期38-40,61,共4页
INFORMATIZATION RESEARCH
关键词
永磁同步电动机
正弦脉宽调制
空间矢量脉宽调制
总谐波失真
permanent magnet synchronous motor
sine pulse width modulation
space vector pulse width modulation
total harmonic distortion
