A SIMPLIFIED NONLINEAR MODEL OF SWITCHED RELUCTANCE MOTOR

Document Type : Original Article

Authors

Department of Electrical Engineering, Faculty of Engineering, Minoufiya University, Egypt

Abstract

This paper presents a simple nonlinear mathematical model of the switched reluctance motor
(SRM) which requires a minimum pre-calculated input data. The proposed model depends on
describing the characteristic data obtained fiom finite element analysis (FEA) in a simple
parametric formula. The inductance and torque equations are derived as functions of the rotor
position and phase current. Computer simulation based on the proposed model produces accurate
current, voltage and torque wave shapes. It provides good flux linkage-current, torque-angle
relationships. The model also gives reliable results in both steady state and dynamic operation.
Simulation results of the proposed model are compared with those based on FEA to verify its
accuracy. The simplicity and accuracy of this model makes it a useful tool for controller design
and implementation.

Keywords

ERJ. Engineering Research Journal
Volume 31, Issue 4
October 2008
Pages 337-343

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