Advance BLDC Motor Drive Control for Electric Vehicles

Various electric motors have been used as the propulsion system of electric vehicles. This paper proposed advanced BLDC motor drive control with the principle of digital PWM which treats the motor like a digital system. The digital PWM control sets six gate switches on the inverter and selects variations of high duty, low duty, or skip state based on the speed error and the actual motor current. In addition, a proportional control provides a reference current limit. All processes of commuting and generating digital PWM are integrated into the driver. The digital PWM with proportional control can eliminate the process disturbance signal, give a good response, and has a good settling time, it has the potential to be integrated into a motor driver. The BLDC motor drive control with the principle of digital PWM implemented for electric vehicles.