Parametric lightweight design of a direct-drive wind turbine electrical generator supporting structure for minimising dynamic response

Heavy, large and robust supporting structures are needed to keep the airgap clearance of direct-drive multi-MW wind turbine electrical generators open and stable. As rotating pieces of machinery, generators vibrate when their natural frequencies are excited introducing potentially large amplitude oscillations due to the forces acting on them that could cause structural fatigue, noise and, in the worst-case scenario, their sudden collapse. A novel procedure for cost-effective and dynamically efficient structural design of a generator has been developed through a series of different finite element studies for a proposed 3MW machine with a conical rotor structure working under extreme conditions. Following a parametric approach coupled with the use of a topology optimisation tool it was demonstrated that the structural mass and dynamic response of the machine can be minimised, while complying with the deflection requirements.

• Record URL:
  • https://doi.org/10.1080/17445302.2021.1927356
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/17445302
• Supplemental Notes:
  • © 2021 P. Jaen-Sola et al. Published by Informa UK Limited, trading as Taylor & Francis Group 2021. Abstract reprinted with permission of Taylor & Francis.
• Authors:
  • Jaen-Sola, P
  • Oterkus, E
  • McDonald, A S
• Publication Date: 2021-8

Language

• English

Media Info

• Media Type: Web
• Features: Figures; References;
• Pagination: pp 266-274
• Serial:
  • Ships and Offshore Structures
  • Volume: 16
  • Issue Number: S1
  • Publisher: Taylor & Francis
  • ISSN: 1744-5302
  • Serial URL: http://www.tandfonline.com/tsos20

Subject/Index Terms

• TRT Terms: Design; Electric generators; Offshore structures; Parametric analysis; Turbines; Wind power generation
• Subject Areas: Design; Energy; Marine Transportation; Terminals and Facilities;

Filing Info

• Accession Number: 01789945
• Record Type: Publication
• Files: TRIS
• Created Date: Nov 30 2021 4:26PM