견인력 보상기법을 적용한 PM 견인전동기의 순시토크제어에 관한 연구

The power density of a PMSM is higher than that of induction motor with same ratings due to the no stator power dedicated to the magnetic field production. Because of its high power density and smaller size, the PMSM has evolved as the preferred solution for traction motor in recent years. It is essential that both the traction motor and the associated drive operate at their optimal efficiencies throughout the driving schedule. Therefore, this paper proposes tractive force predicting method which can deduce the traction force the acceleration of the vehicle under different conditions. This method improves the instantaneous torque in comparison with the general control method. The simulation and experimental results validate the proposed method for monorail vehicle application.