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PMSM cogging torque reduction: Comparison between different shapes of magnet

Abstract : In most of the industrial applications, such as vehicular traction, when a Permanent Magnet Synchronous Motor (PMSM) can be used, a low cogging torque is required. The air gap variation, the magnet shapes and stator slots forms are the origins of cogging torque. In this work which aims at reducing cogging torque, we focus on the rotor magnet shapes optimizations. From intensive Finite Elements (FE) simulations of a Surface-mounted Permanent Magnet Synchronous Motor (SPMSM), 3-phases, 2-pairs of pole and 36 stator slots (3-circuits by pole and phase), a cogging torque reduction can be reached. The effect of different magnet shapes on cogging torque is studied in order to identify the optimal design for each one.
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Submitted on : Tuesday, January 22, 2013 - 12:51:28 PM
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Mourad Chabchoub, Ibrahim Ben Salah, Guillaume Krebs, Rafik Neji, Claude Marchand. PMSM cogging torque reduction: Comparison between different shapes of magnet. REVET 2012, Mar 2012, Hammamet, Tunisia. pp.206 - 211, ⟨10.1109/REVET.2012.6195272⟩. ⟨hal-00779586⟩



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