Design and Analysis of Low Speed, High Torque Permanent Magnet Motors

Abstract

This paper presents design and analysis of low speed, high torque permanent magnet motors. The motor has 16-pole, 18-coil construction and a unique winding arrangement to produce high torque. The simplified torque analysis is proposed considering the line of magnetic induction distribution in the motor. The validity of the proposed analysis has been proved by both linear and non-linear FEM analysis. The 500Nm, 200rpm test motor has been designed and constructed and the motor gives the expected characteristics.