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Design of direct-drive wind turbine electrical generator structures using topology optimization techniques

Jaen-Sola, P.; McDonald, A. S.; Oterkus, E.

Authors

A. S. McDonald

E. Oterkus



Abstract

Reducing the structural mass of low speed multi-MW electrical machines for renewable energy purposes have become an important object of study as with the drop in mass a substantial decrease in the machine capital cost can be achieved. Direct-drive wind turbine electrical generators need very robust and heavy supporting structures able to cope with the demanding requirements imposed by the environment and the forces and moments transmitted by the wind turbine rotor in order to maintain the air-gap clearance open and stable. It is estimated that at least 2/3 of the total machine mass corresponds to the supporting structure. The main aim of this investigation is to minimize the structural mass of a 3 MW direct-drive wind turbine permanent magnet electrical generator, which dimensions have been previously optimized, making use of topology optimization techniques. Easy to manufacture structures made of cast iron capable of complying with the requirements were generated for both rotor and stator.

Citation

Jaen-Sola, P., McDonald, A. S., & Oterkus, E. (2020, September). Design of direct-drive wind turbine electrical generator structures using topology optimization techniques. Presented at The Science of Making Torque from Wind (TORQUE 2020), Online

Presentation Conference Type Conference Paper (published)
Conference Name The Science of Making Torque from Wind (TORQUE 2020)
Start Date Sep 28, 2020
End Date Oct 2, 2020
Online Publication Date Sep 22, 2020
Publication Date 2020-09
Deposit Date Sep 23, 2021
Publicly Available Date Sep 23, 2021
Journal Journal of Physics: Conference Series
Print ISSN 1742-6588
Electronic ISSN 1742-6596
Publisher IOP Publishing
Peer Reviewed Peer Reviewed
Volume 1618
Pages 052009
DOI https://doi.org/10.1088/1742-6596/1618/5/052009
Keywords General Physics and Astronomy
Public URL http://researchrepository.napier.ac.uk/Output/2804663

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Publisher Licence URL
http://creativecommons.org/licenses/by/3.0/

Copyright Statement
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence.





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