Proportional Integral(PI) Controller with 8-Bit Timer Based Digital-Pulse-Width-Modulation(PWM) Technique for BLDC Motor Drive

In certain applications, such as the Electric Vehicle (EV), the electric motor significantly impacts the system's overall performance system. Efficient and reliable control of the entire system and operation of the same in these applications largely depends on the selection of the ideal motor type and control drive(controller mechanism). The appropriate choice of motor also depends primarily on the specific application's requirements. The BLDC motor is the new conventional Electronic Commutation motor. The motor's high efficiency, wide speed range, and high power-to-torque for its size are the main advantages of the BLDC motor over other types of conventional motors. The initial controller part includes an 8-bit timer which is a general-purpose counter module, it includes a bidirectional counter, an interruption generation block, input pulse and external clock count modes, provides PWM (Pulse Width Modulation) events necessary for motor speed control. The Proportional Integral (PI) controller is used to speed up and initiate better control of the BLDC motor during commutation. Basically, the controller of a BLDC motor plays a key role in getting the motor to rotate properly. The controller part involving a PI with 8Bit timer based PWM generator is to be modeled and can be verified in MATLAB Simulink software. Further hardware verification can be executed in FPGA. The PWM technique is used to control and operate the speed of the motor at necessary frequencies. The required speed of the motor will be achieved by changing the duty cycle of the PWM wave. The overall testing and efficiency of the controller system is undertaken