Electromagnetic Design and Performance Analysis of Permanent Magnet DC Motor
Permanent magnet DC brushless motors have many advantages such as simple structure,reliable operation,easy maintenance,small size,and light weight.This research studied the design and simulation of permanent magnet DC motors and their related parameters using a model of a permanent magnet DC motor.First,electromagnetic calculations were performed based on the principles of permanent magnet DC motors to complete the modeling and transient simulation of the motor.By changing specific parameters of the motor,variations in the motor's output characteristics were observed.Subsequently,to optimize the output characteristics of the motor,this adopted a fractional-slot double-layer concentrated winding to reduce cogging torque,and the rotor adopted an embedded permanent magnet structure to reduce pole arc effect.Finally,simulations were conducted on the optimized motor,and the results showed a significant improvement in its output characteristics.