Shape optimization for reduction the cogging torque of BLAC motor for EPS application

This paper deals with the shape optimization of the BLAC motor, in order to reduce its cogging torque. The motor type is an interior permanent magnet motor, and the motor is designed for an electric power steering system application. In this application, a motor cogging torque is one of the most important parameter, and the shape optimization to reduce the cogging torque of the BLAC motor is accomplished by using response surface method (RSM).