Skip to main content

Research Repository

Advanced Search

Structural Optimisation of Offshore Direct-Drive Wind Turbine Generators Including Static and Dynamic Analyses

Tartt, K.; Kazemi Amiri, A.; McDonald, A.; Jaen-Sola, P.


K. Tartt

A. Kazemi Amiri

A. McDonald


One way to achieve increased wind capacity is by installing larger and more efficient wind turbines, which results in larger/heavier generators. Direct-drive, permanent magnet generators are favoured due to their increased efficiency, but the added weight is an issue, as this drives up the cost of the nacelle and turbine support structure, along with increasing the manufacturing and installation costs. Therefore, minimizing the mass, particularly the structural mass, of these low speed generators is becoming much more important. A vast amount of research has been done on trying to reduce the electromagnetically 'active' materials, but it is the supporting structure or 'inactive' materials, that makes up the biggest percentage of the generator's mass. Therefore, this paper studies the statics and dynamics of a large offshore direct-drive generator's supporting structure and the opportunities for light-weighting, as well as improvements to the generator's rotor structure through structural optimisation. The indicator for optimised design is system weight under each predefined scenario. These scenarios will cover different design considerations of the generator's rotor structure.


Tartt, K., Kazemi Amiri, A., McDonald, A., & Jaen-Sola, P. (2021). Structural Optimisation of Offshore Direct-Drive Wind Turbine Generators Including Static and Dynamic Analyses. Journal of Physics: Conference Series, 2018(1), Article 012040.

Journal Article Type Article
Conference Name EERA DeepWind'2021
Conference Location Trondheim, Norway
Publication Date Sep 1, 2021
Deposit Date Nov 25, 2021
Publicly Available Date Nov 25, 2021
Journal Journal of Physics: Conference Series
Print ISSN 1742-6588
Electronic ISSN 1742-6596
Publisher IOP Publishing
Peer Reviewed Peer Reviewed
Volume 2018
Issue 1
Article Number 012040
Public URL


Structural Optimisation Of Offshore Direct-Drive Wind Turbine Generators Including Static And Dynamic Analyses (1.9 Mb)

Publisher Licence URL

Copyright Statement
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

You might also like

Downloadable Citations