Reducing cogging torque in permanent-magnet synchronous motors by auxiliary teeth method

Abstract

Cogging torque in permanent-magnet motors is one of the most important problems to be considered in high performance applications especially in low speed and direct drive applications. In this paper, the analytical expression for cogging torque in permanent-magnet synchronous motors (PMSM) with auxiliary teeth is derived by the energy method and the Fourier… (More)

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4 Figures and Tables