Design and Analysis of Rolled Rotor Switched Reluctance Motor

Abstract

In the conventional SRM with multi-rotor teeth the air gap must be very small to drive the SRM in the saturation region that is necessary for high output torque. But that leads to the problem of overheating particularly in the small size SRM. So the paper addresses the design and analysis of a new type of SRM which is the rolled rotor SRM, this new type needn't more than one region of very small airgap. That solves the overheating problem in the small size SRM. Moreover, using the rolled rotor instead of the conventional toothed rotor grades the air gap; that gives smooth variation of the reluctance consequently smooth current and torque shapes which is required in many applications.