定子双馈电双凸极电机SVPWM控制建模与仿真

Modeling and Simulation of SVPWM Control for Stator-doubly-fed Doubly Salient Motor

文章分析并建立了定子双馈电双凸极(SDFDS)电机在d、q旋转坐标系下的数学模型。依据空间矢量脉宽调制(SVPWM)原理,SDFDS电机调速系统的电流环采用空间矢量脉宽调制方式以提高SDFDS电机的电枢电流的控制性能。并基于Matlab/Simulink建立了SDFDS电机调速系统的SVPWM控制系统仿真模型。仿真结果表明,采用SVPWM控制的SDFDS电机调速系统电枢电流谐波明显减小,电机转矩脉动降低,电机转速控制性能良好,验证了整个SDFDS电机SVPWM控制系统的正确性和有效性。

Analyzed the mathematical model of SDFDS motor in d/q coordinate in this paper. Space vector pulse width modulation （SVPWM） has the advantage of high utilization efficiency of DC voltage and lower harmonies. According to the principle of space vector pulse width modulation （ SVPWM）, the current loop of SDFDS motor drive uses space vector pulse width modulation for improving the control performance of armature current. And the simulation model of SDFDS motor drive under SVPWM control based on Matlab/Simulink was built in this paper. The simulation results show that the harmonic of armature current decreases significantly, the torque ripple becomes small and good speed adjusting performance is achieved, which verify the correctness and effectiveness of the SVPWM control system of SDFDS drive.