Stator-flux-oriented control of PMSM with highly-dynamic field-weakening operation

Excellent torque dynamics are important in traction applications - not because of acceleration or deceleration, but to meet additional demands as suppression of drive chain oscillations, slip-slide protection and electronic stability control. Dynamics are limited by the rating and the switching frequency of the inverter, which the control has to make optimal use of. This paper presents a stator-flux-based control scheme for PMSM which gives the maximum physically possible dynamics with regard to the limitations stated above. The simulation results presented are based on a simulation structure which is verified by measurement and simulation carried out at an AFE.