Study On PMSM Drive System Of The Hybird Electrical Vehicle

At present, the reserches of PMSM driver have been developed, but there still exist some problemes in order to satisfied the special demand of the HEV (Hybird Electrical Vehicle) propulsion system,. The paper has mainly dealt with about flux weaking, controller and regeneration braking problemes.Firstly, after comparing the performance of induction motor(IM), permanent magnet motor(PMM) and switched reluctance motor(SRM), and the performance of the permanent magnet synchronous motor(PMSM), the permanent magnet direct current motor(PMDCM), choose the PMSM as the drive motor of the HEV. Secondly,do some specific study on the different performance under different salient rate and different flux weaking rate,and present the constant power curve in d_q reference frame,base on which research the max power flux weaking are present.Thirdly, analyse the shortcoming of general PI controller after the saturation, and present the forecast forward feed controller, discuss the stability and the optimize parameter. Forthly, analyzing the essence of regeneration braking, discuss the character of different of regeneration method. At last, introduce the practicality system based on the DSP　TMS302lf2407, discuss the lag in discrete system ,give the method of the compensate for the lag of the position.