Computer Program Aids
Magnetics Design of Brush and Brushless DC Motors

A computer program that can run on a personal computer employs simple lumped reluctance simulation to determine the magnetics design. The program has sufficient accuracy for the majority of motor design applications and can be used in place of the slower but more accurate finite element mesh (FEM) simulation programs. To demonstrate use of this program, we will simulate a set of brush and brushless DC motor designs for a rare earth magnet motor. Our intent is to show that a simpler program can be used as long as the user understands that the resulting boundary conditions will impact simulation accuracy.



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