Fundamental and Magnetic Force Analysis of an External Rotor Switched Reluctance Motor
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Fundamental and Magnetic Force Analysis of an External Rotor Switched Reluctance MotorAbstract
This paper presents a novel three-phase 6/8 external rotor switched reluctance motor. Such a construction not only leads to reduce the total weight and volume, but also increases the total efficiency in a small size motor. Three dimensional finite element method is applied to evaluate the main characteristics of the proposed motor such as magnetic flux density, flux linkage, self-inductance, mutual inductance, and output torque. Moreover, this paper investigates the radial force components of the motor. This assessment is carried out under different forced current levels with the respect to critical rotor positions. From the motor analysis results, it is considered that the proposed motor has great advantages over the conventional type in its magnetic profiles.
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