A Novel “Pseudo” Direct-Drive Brushless Permanent Magnet Machine
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- 16 December 2008
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Magnetics
- Vol. 44 (11), 4349-4352
- https://doi.org/10.1109/tmag.2008.2001509
Abstract
For low-speed electrical machine applications, it is usually weight/size and cost effective to employ a high-speed machine together with a mechanical gearbox. However, the disadvantages associated with magnetic gearboxes can be overcome by mechanically and magnetically integrating a magnetic gear and a permanent magnet brushless machine, to create a ldquopseudordquo direct-drive machine. It is shown that a torque density in excess of 60 kNm/m 3 can then be achieved, at a power factor in excess of 0.9.Keywords
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