Issues with Low Speed Direct-Drive Permanent-Magnet Generator Design - Comparison of Radial-Flux Slotted and Torus Machines

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Conference Proceeding
Proceedings IECON 2010 - 36th Annual Conference on IEEE Industrial Electronics Society, 2010, pp. 3091 - 3096
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This paper describes two alternative designs of a direct-drive permanent-magnet generator for use in a novel seawave electrical generator. The basic system is briefly described and the target specification is given from the wave device. The design for a fractional-slot high-pole number brushless permanent-magnet generator and a torus generator are sized and developed using the design packages SPEED PC-BDC and PC-FEA. The designs are compared. A diode bridge model is also tested using Portunus system simulation. A design for a switched reluctance machine is also briefly investigated.
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