ANALYSIS THE INDUCTANCE AND HARMONIC INDUCTANCE OF SWITCHED RELUCTANCE MOTOR

Abstract

Switched reluctance motor (SRM) is speed regulation motor developed in recent years. It has simple structure, not windings or permanent magnets in the rotor; easy to cool, large acceleration capacity, high efficiency; widely applied in instrumentation, electric vehicles, home appliances,.... Variation of inductance is the main principle of generation torque of SRM. This paper focuses on analyzing, calculating inductance and harmonic inductance orders of inductance of SRM with changing pole arc rotor and it is possible to preliminary evaluate the harmonics torque. The developed mathematical model is implemented in Matlab/Simulink environment. The analytical calculation, inductance analysis, harmonics inductance by Matlab, then FEM analysis by Motor Cad software. The result is the basis for the desginer to has some adjustments and reeasonable choices for the pole arc rotor of SRM structure to minimum the torque ripple.