Optimum Design Approach for Low Speed, High Torque Permanent Magnet Motors

Abstract

This paper presents the optimum design approach of the low speed, high torque permanent magnet motors. The approach is divided into two steps; the first step is a rough estimation of torque by linear analysis and the second is the optimization of motor configuration based on the non-linear FEM analysis. Under the restricted specifications of dimensions and electrical requirements, the 16-pole, 18-coil permanent magnet motor with 600 Nm, 300 rpm rating has been designed and constructed.