Improving the Thermal Performance of Rotary and Linear Air-Cored Permanent Magnet Machines for Direct Drive Wind and Wave Energy Applications

Authors :: Mike Galbraith
Estanislao J. P. Echenique Subiabre
Alasdair McDonald
Yew Chuan Chong
Ozan Keysan
Joseph Burchell
Markus Mueller
Source :: Mueller, M, Burchell, J, Chong, Y C, Keysan, O, McDonald, A, Galbraith, M & Echenique Subiabre, J P 2019, ' Improving the Thermal Performance of Rotary and Linear Air-Cored Permanent Magnet Machines for Direct Drive Wind and Wave Energy Applications ', IEEE Transactions on Energy Conversion, vol. 34, no. 2, pp. 773-781 . https://doi.org/10.1109/TEC.2018.2881340
Publication Year :: 2019
Publisher :: Institute of Electrical and Electronics Engineers (IEEE), 2019.
Abstract: Air-cored machines offer benefits in terms the elimination of magnetic attraction forces between stator and rotor. With no iron in the stator there is not a good thermal conduction path for heat generated by Joule losses in the stator winding. Results from both models and experimental tests are provided in this paper to investigate different methods of cooling air-cored windings, including natural air-cooling, direct liquid cooling, and the use of heat pipes.

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