Influence of system level parameters on the fatigue life of jacket substructures for 10 MW and 20 MW wind turbines
This paper investigates the influence of system-level innovations on the fatigue life of jacket substructures for offshore wind turbines. The innovations consist of active control strategies as individual pitch control and individual flap control. Further the effect of a magnetic pseudo direct-drive...
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American Society of Mechanical Engineers
2018
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Online Access: | https://orbit.dtu.dk/en/publications/6292eaae-f4cd-45c0-80cc-82e5b6fac514 https://doi.org/10.1115/OMAE2018-77568 |
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ftdtupubl:oai:pure.atira.dk:publications/6292eaae-f4cd-45c0-80cc-82e5b6fac514 2023-11-05T03:37:46+01:00 Influence of system level parameters on the fatigue life of jacket substructures for 10 MW and 20 MW wind turbines Conti, Davide Natarajan, Anand Abrahamsen, Asger Bech 2018 https://orbit.dtu.dk/en/publications/6292eaae-f4cd-45c0-80cc-82e5b6fac514 https://doi.org/10.1115/OMAE2018-77568 eng eng American Society of Mechanical Engineers info:eu-repo/semantics/closedAccess Conti , D , Natarajan , A & Abrahamsen , A B 2018 , Influence of system level parameters on the fatigue life of jacket substructures for 10 MW and 20 MW wind turbines . in ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering . vol. 10 , OMAE2018-77568 , American Society of Mechanical Engineers , 37th International Conference on Ocean, Offshore and Artic Engineering (OMAE2018) , Madrid , Spain , 17/06/2018 . https://doi.org/10.1115/OMAE2018-77568 Ocean Engineering contributionToPeriodical 2018 ftdtupubl https://doi.org/10.1115/OMAE2018-77568 2023-10-11T23:00:21Z This paper investigates the influence of system-level innovations on the fatigue life of jacket substructures for offshore wind turbines. The innovations consist of active control strategies as individual pitch control and individual flap control. Further the effect of a magnetic pseudo direct-drive generator (PDD) mounted upfront the rotor is investigated. Fully-coupled aeroelastic simulations are performed for 10 MW and 20 MW wind turbines, with the selected innovations, supported by jacket structures under specific met-ocean conditions at 50 m of water depth. Fatigue limit states at the jacket' welded joints are evaluated based on S-N curves and Miner's rule according to DNV-RP-C203 guideline. Results show the potential of advanced control systems to reduce stresses at jacket members. Few design challenges characterize PDD models, as increased tower base torsional loads and excitation of global bending modes may be critical for jacket's members. Altogether, this study indicates the benefit of an integrated-iterative design approach for jacket substructures, where system-level parameters are iterated along with the jacket design parameters using fully-coupled models. Article in Journal/Newspaper Arctic Technical University of Denmark: DTU Orbit Volume 10: Ocean Renewable Energy |
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Open Polar |
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Technical University of Denmark: DTU Orbit |
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ftdtupubl |
language |
English |
topic |
Ocean Engineering |
spellingShingle |
Ocean Engineering Conti, Davide Natarajan, Anand Abrahamsen, Asger Bech Influence of system level parameters on the fatigue life of jacket substructures for 10 MW and 20 MW wind turbines |
topic_facet |
Ocean Engineering |
description |
This paper investigates the influence of system-level innovations on the fatigue life of jacket substructures for offshore wind turbines. The innovations consist of active control strategies as individual pitch control and individual flap control. Further the effect of a magnetic pseudo direct-drive generator (PDD) mounted upfront the rotor is investigated. Fully-coupled aeroelastic simulations are performed for 10 MW and 20 MW wind turbines, with the selected innovations, supported by jacket structures under specific met-ocean conditions at 50 m of water depth. Fatigue limit states at the jacket' welded joints are evaluated based on S-N curves and Miner's rule according to DNV-RP-C203 guideline. Results show the potential of advanced control systems to reduce stresses at jacket members. Few design challenges characterize PDD models, as increased tower base torsional loads and excitation of global bending modes may be critical for jacket's members. Altogether, this study indicates the benefit of an integrated-iterative design approach for jacket substructures, where system-level parameters are iterated along with the jacket design parameters using fully-coupled models. |
format |
Article in Journal/Newspaper |
author |
Conti, Davide Natarajan, Anand Abrahamsen, Asger Bech |
author_facet |
Conti, Davide Natarajan, Anand Abrahamsen, Asger Bech |
author_sort |
Conti, Davide |
title |
Influence of system level parameters on the fatigue life of jacket substructures for 10 MW and 20 MW wind turbines |
title_short |
Influence of system level parameters on the fatigue life of jacket substructures for 10 MW and 20 MW wind turbines |
title_full |
Influence of system level parameters on the fatigue life of jacket substructures for 10 MW and 20 MW wind turbines |
title_fullStr |
Influence of system level parameters on the fatigue life of jacket substructures for 10 MW and 20 MW wind turbines |
title_full_unstemmed |
Influence of system level parameters on the fatigue life of jacket substructures for 10 MW and 20 MW wind turbines |
title_sort |
influence of system level parameters on the fatigue life of jacket substructures for 10 mw and 20 mw wind turbines |
publisher |
American Society of Mechanical Engineers |
publishDate |
2018 |
url |
https://orbit.dtu.dk/en/publications/6292eaae-f4cd-45c0-80cc-82e5b6fac514 https://doi.org/10.1115/OMAE2018-77568 |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Conti , D , Natarajan , A & Abrahamsen , A B 2018 , Influence of system level parameters on the fatigue life of jacket substructures for 10 MW and 20 MW wind turbines . in ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering . vol. 10 , OMAE2018-77568 , American Society of Mechanical Engineers , 37th International Conference on Ocean, Offshore and Artic Engineering (OMAE2018) , Madrid , Spain , 17/06/2018 . https://doi.org/10.1115/OMAE2018-77568 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1115/OMAE2018-77568 |
container_title |
Volume 10: Ocean Renewable Energy |
_version_ |
1781693484258820096 |