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Fuzzy Iterative Technique for Torque Ripple Minimization in Switched Reluctance Motors

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The switched reluctance motor has many benefits owing to its low cost, simple and rugged construction, and comparatively high torque-to-mass ratio. The main disadvantage of the motor is that it produces high torque ripples. Torque control is a difficult task since the switched reluctance motor is intentionally operated in deep magnetic saturation to increase the output power density. A new method, called the fuzzy iterative technique, is introduced in this work to modulate the phase current profile to minimize the torque ripples. The experimental results indicate that the torque ripple is reduced to lie within 5% of the desired steady torque even in dynamic operating conditions.

Keywords: current controller; current modulation; fuzzy system; switched reluctance motor; torque ripple

Document Type: Research Article


Affiliations: 1: Faculty of Engineering, Multimedia University, Cyberjaya, Selangor, Malaysia 2: Department of Electrical Engineering, Indian Institute of Technology, Kharagpur, India

Publication date: 2009-09-01

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