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2019•2019 19th International Symposium on Electromagnetic Fields in Mechatronics, Electrical and Electronic Engineering (ISEF)Requires access

A Method for Improving Torque Density in FSCW PM Machines

Aimeng Wang, Yi Tian

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Abstract

The method for improving torque density by suitable selection of stator teeth and tips width in Fractional-slot concentrated winding permanent magnet (FSCW PM) machines with similar slot and pole numbers was researched. A 12-slot/10-pole machine is chosen as an example, in which six schemes of tooth and tip widths were designed. In each scheme, torque characteristics were simulated by FEA. The results show that torque density can be improved when machines adopts the unequal stator teeth and tips width. Appropriate teeth and tips width maximizes the tooth flux and winding factor, and thus improves the torque density effectively.

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What this paper is about

The method for improving torque density by suitable selection of stator teeth and tips width in Fractional-slot concentrated winding permanent magnet (FSCW PM) machines with similar slot and pole numbers was researched. A 12-slot/10-pole machine is chosen as an example, in which six schemes of tooth and tip widths were designed. In each scheme, torque characteristics were simulated by FEA. The results show that torque density can be improved when machines adopts the unequal stator teeth and tips width. Appropriate teeth and tips width maximizes the tooth flux and winding factor, and thus improves the torque density effectively.

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Available abstract

The method for improving torque density by suitable selection of stator teeth and tips width in Fractional-slot concentrated winding permanent magnet (FSCW PM) machines with similar slot and pole numbers was researched. A 12-slot/10-pole machine is chosen as an example, in which six schemes of tooth and tip widths were designed. In each scheme, torque characteristics were simulated by FEA. The results show that torque density can be improved when machines adopts the unequal stator teeth and tips width. Appropriate teeth and tips width maximizes the tooth flux and winding factor, and thus improves the torque density effectively.

Key concepts: Torque, Torque density, Stator, Magnet, Electromagnetic coil, Control theory (sociology), Materials science, Mechanical engineering

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