Torque Ripple Reduction of Switched Reluctance Motor by Optimizing Stator Pole Type

Abstract:

The torque ripple is the important restriction affecting the promotion and application of switched reluctance motor, the analytic expressions to calculate switched reluctance motors tangential force and radial force are derived in this paper, based on analyzing the cause of switched reluctance motor vibration and torque ripple. By improving the stator poles structure, the torque near the commutation points is compensated, which smooth the wave of air gap magnetic field to reduce torque ripple when the stators and the rotors salient poles coincide. In this paper, three structures that puts wedge angle on both sides of the stator poles is presented, and analysis of torque ripple is made. Studies shows that the right size of wedge angle can effectively inhibit the switched reluctance motor torque fluctuations.

• Periodical: Applied Mechanics and Materials (Volumes 494-495)
• Pages: 1395-1400
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.494-495.1395
• Online since: February 2014
• Authors: Hong Xing Wu*, Qing Jie Sun, Ji Gui Zheng, Shou Ming Zhou
• Keywords: Structural Optimization, Switched Reluctance Motor, Torque Ripple

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