Dynamic Analysis of Brushless DC Motor Based on Magnetic Circuit Model

摘要

In this paper, we propose a new analytical model for brushless dc motors that is based on the magnetic circuit. The magnetic circuit is constructed with magnetic reluctances of stator and rotor cores and magnetomotive force of the stator winding currents and permanent magnets. Combining the magnetic circuit, electrical circuit, electronic circuit, and control circuit, we can accurately analyze the dynamic characteristics of the brushless dc motor.