Electromagnetic performance analysis of external rotor IPM machine for aircraft applications

This paper has proposed an external rotor fractional slot concentrated winding (FSCW) interior permanent magnet (IPM) machine for aircraft traction applications. The electromagnet performance at no-load condition such as air-gap flux density, flux linkage distribution, electromotive force (EMF), and cogging torque are studied. The electromagnet performance at rated-load condition such as average torque, torque ripple, and iron losses are investigated. It can be found that, the advantages of the external rotor IPM machine are high torque density, high power density, and simple structure.

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