PMSM drive having hall position sensor for electric scooter

This thesis shows the control process of in-wheel PMSM for electricity scooter. This motor has a mechanical complex structure, so it is difficult to install resolver or encoder position sensor. It suggested the way of vector control for PMSM motor with hall sensor. After driving with BLDC control way in low speed, the control method of motor convert into the way of vector control with MRAS speed observer to obtain the accurate position information. By this position information, MTPA operation with field weakening control is carried out. This suggestion was verified through the practical experiment and simulation.