Computer Aided Design and Analysis of Switched Reluctance Motor

Abstract

This paper present method to designing a switched reluctance motor (SRM). Switched Reluctance Motor (SRM) is coming up as an alternative selection for variable speed drives in many automobile and industrial applications. Its construction is simple and rugged. Its higher efficiency, high torque to inertia ratio and thermal toughness are some of the salient advantages of SRM. It is used in centrifugal pumps, fans, plotter drives, and automotive application, under water marine drive, washing machine, electrical vehicle and medical application. However, the SRM has not gained prominent importance in many practical applications, because of its few disadvantages like large torque ripple, acoustic noise and proper design. This paper describes a step for design procedure of SRM. The design step verification of the motor winding inductance at different rotor positions from un-aligned to aligned position and the static flux linkage characteristics will be carried out. Design verification and performance calculation of switched reluctance motor (SRM) will be carried out using Finite elements method. The Computer Aided Design (CAD) of switched reluctance motor will be carried out. Minimization of the torque ripple is done by Changing stator and rotor pole arc, tapered angle of stator and rotor pole, changing turn-on and turn-off angle, changing pole tip shape design, reducing mutual inductance.