Analysis of Cogging Torque of PM Motor with Radial Magnetic Field and Parallel Magnetic Field

Abstract:

This paper provide two methods to analyze the cogging torque of PM motor with radial magnetic field and parallel magnetic field, FEM method and Analytic method. The FEM model and Analytic model of PM motor with radial magnetic field and parallel magnetic field are founded. We analyze the model in both methods. From the result of analysis. The air-gap magnetic density of PM motor can be analyzed. We can find the cogging torque of radial magnetic field PM motor is much heavily than the cogging torque of parallel magnetic field PM motor. The result of Analytic method is close to the result of FEM method. The Analytic method is useful in analyze the cogging torque of PM motor.

• Periodical: Applied Mechanics and Materials (Volumes 105-107)
• Pages: 2289-2294
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.105-107.2289
• Online since: September 2011
• Authors: Jun Qiang Lian, Shun Yi Xie, Jian Wang
• Keywords: Analytic Methods, Cogging Torque, Finite Element Method (FEM), Parallel Magnetic Field, Radial Magnetic Field

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