FABRICATION OF AXIAL FLUX BLDC MOTOR

The electric machines have been applied to the industrial and commercial areas for

several decades. The high performance of control and fast dynamic response of electric

machines can be achieved via motor drive because of high development of

semiconductors such as the microcontroller and power transistors. Brushless DC motor

(BLDC) and permanent magnet AC synchronous motors drives have many advantages

such as high efficiency, small size, less rotor losses, and fast torque response over the

induction motor drives. Axial flux brushless direct current motor is used extensively

rather than permanent magnet synchronous motor (PMSM) because of their high

performance in applications like servos to traction drives AFBLDC motor possesses high

efficiency, high power density, high torque to inertia ratio and simple in control compared

to PMSM. In applications like medical, robotics and automation industries to the

military high precision control are required and this can be achievable with the help of

AFBLDC motor. As the name implies, these motors do not use mechanical

commutator and brushes for commutation, instead they are electronically

commutated. They have many advantages over brushed DC motor and induction

motors. A few of these are: better speed versus torque characteristics, high dynamic

response, high efficiency, long operating life, noiseless operation and higher speed range.