Performance comparison of PWM inverter fed IM drive & BLDC drive for vehicular applications

Two main types of motor can be used for vehicular application-BLDC and the Induction Motors. This paper compares the performance of a BLDC motor driver system using PWM with that of an induction motor drive also fed from a PWM Inverter. The induction motor is operated under efficiency optimization mode where as the BLDC motors are having inherent high efficiency property. The simulation and experimental results are presented to verify the stability of the driver system. Computer simulation results obtained, confirm that the proposed induction motor control approach also can be applied for electric vehicle when they are operated under efficiency optimization mode.