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Analysis of Flux Leakage in a Segmented Core Brushless Permanent Magnet Motor

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2 Author(s)
Momen, M.F. ; Northland Motor Technol., Watertown, NY ; Datta, S.

This paper presents an analytical model to analyze the leakage flux associated with a brushless permanent magnet motor that utilizes segmented stator core. Due to the presence of a segmented stator structure, the leakage of flux through the tooth tips becomes worthy of analysis and consideration in such a motor. A leakage parameter alpha is developed to show the effects of various design parameters on tooth-tip flux leakage that is essential in accurately predicting the air gap flux density and other output parameters in the motor. Finite-element analysis and experimental verifications are also done to validate the analytical model.

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Energy Conversion, IEEE Transactions on  (Volume:24 ,  Issue: 1 )