New External Rotor Switched Reluctance Motor in Comparison with Conventional SRM

In this paper a novel three-phase 6 by 8 external rotor switched reluctance motor is presented. The most important advantage of the proposed motor is producing high torque per volume in household and industry applications. This construction not only leads to reduction of the total torque per volume, but also increases the total efficiency in small size motor. Three dimensional finite element method is applied to evaluate the main characteristics of the proposed motor. These characteristics of the motor are compared to a conventional three-phase 8 by 6 SRM configuration with similar conditions. It is shown that the proposed motor has great advantages over the conventional type in production of minimum to maximum inductance ratio, which results in higher output torque per volume for the motor. Copyright (C) 2011 Praise Worthy Prize S.r.l. All rights reserved