Mathematical field models of brushless DC motors with permanent magnets and their comparative analysis

Abstract

By means of JMAG-Designer 12 the author performed a comparative analysis of the calculation of the EMF, cogging torque and electromagnetic torque of brushless motor with permanent magnets in two-dimensional and three-dimensional formulation of the problem.

Keywords

• brushless DC motor
• cogging torque
• slot skew
• FEM
• magnetic field
• electric circuit
• EMF