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Experimental and nu...
Experimental and numerical collaborative latching control of wave energy converter arrays
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- Thomas, Simon (författare)
- Uppsala universitet,Elektricitetslära
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- Eriksson, Mikael (författare)
- Uppsala universitet,Elektricitetslära
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- Göteman, Malin, 1980- (författare)
- Uppsala universitet,Elektricitetslära
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- Hann, Martyn (författare)
- University of Plymouth, UK
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- Isberg, Jan, 1964- (författare)
- Uppsala universitet,Elektricitetslära
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- Engström, Jens (författare)
- Uppsala universitet,Elektricitetslära
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(creator_code:org_t)
- 2018-11-05
- 2018
- Engelska.
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Ingår i: Energies. - : MDPI AG. - 1996-1073. ; 11:11
- Relaterad länk:
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https://doi.org/10.3...
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https://uu.diva-port... (primary) (Raw object)
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https://www.mdpi.com...
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https://urn.kb.se/re...
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https://doi.org/10.3...
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Abstract
Ämnesord
Stäng
- A challenge while applying latching control on a wave energy converter (WEC) is to find a reliable and robust control strategy working in irregular waves and handling the non-ideal behavior of real WECs. In this paper, a robust and model-free collaborative learning approach for latchable WECs in an array is presented. A machine learning algorithm with a shallow artificial neural network (ANN) is used to find optimal latching times. The applied strategy is compared to a latching time that is linearly correlated with the mean wave period: It is remarkable that the ANN-based WEC achieved a similar power absorption as the WEC applying a linear latching time, by applying only two different latching times. The strategy was tested in a numerical simulation, where for some sea states it absorbed more than twice the power compared to the uncontrolled WEC and over 30% more power than a WEC with constant latching. In wave tank tests with a 1:10 physical scale model the advantage decreased to +3% compared to the best tested constant latching WEC, which is explained by the lower advantage of the latching strategy caused by the non-ideal latching of the physical power take-off model.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Annan elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Other Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Nyckelord
- wave energy
- power take-off
- artificial neural network
- machine learning
- wave tank test
- 14 physical scale model
- floating point absorber
- latching
- control
- collaborative
- Engineering Science with specialization in Electronics
- Teknisk fysik med inriktning mot elektronik
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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