BLDC Motor Control for Electric Vehicle Based On Digital Circuit and Proportional- Integral Controller

Abstract

This paper describes a simple circuit controller of Brushless Direct Current (BLDC) motor for electric vehicle implementation. This control based on the function relationship between the Hall sensor logics and currents that should be supplied on each phase of the motor. The function then simplified using Karnaugh-Map method and implemented using digital circuit. Pulse Width Modulation (PWM) added to produce six triggers that used to regulate the inverter current. Proportional Integral (PI) control based on Ziegler–Nichols also added to PWM circuit to improve motor speed performance. The controller are successfully applied using Matlab-Simulink and simulation results show that the controller have simpler circuit and have better speed performance than conventional controller