Change search
ReferencesLink to record
Permanent link

Direct link
Impact of Generator Stroke Length on Energy Production for a Direct Drive Wave Energy Converter
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Electricity.ORCID iD: 0000-0003-1022-0480
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Electricity.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Electricity.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Electricity.
2016 (English)In: Energies, ISSN 1996-1073, E-ISSN 1996-1073, Vol. 9, no 9, 730Article in journal (Refereed) Published
Abstract [en]

The Lysekil wave energy converter (WEC), developed by the wave energy research group of Uppsala University, has evolved through a variety of mechanical designs since the first prototype was installed in 2006. The hundreds of engineering decisions made throughout the design processes have been based on a combination of theory, know-how from previous experiments, and educated guesses. One key parameter in the design of the WECs linear generator is the stroke length. A long stroke requires a taller WEC with associated economical and mechanical challenges, but a short stroke limits the power production. The 2-m stroke of the current WECs has been an educated guess for the Swedish wave climate, though the consequences of this choice on energy absorption have not been studied. When the WEC technology is considered for international waters, with larger waves and challenges of energy absorption and survivability, the subject of stroke length becomes even more relevant. This paper studies the impact of generator stroke length on energy absorption for three sites off the coasts of Sweden, Chile and Scotland. 2-m, 4-m, and unlimited stroke are considered. Power matrices for the studied WEC prototype are presented for each of the studied stroke lengths. Presented results quantify the losses incurred by a limited stroke. The results indicate that a 2-m stroke length is likely to be a good choice for Sweden, but 4-m is likely to be necessary in more energetic international waters.

Place, publisher, year, edition, pages
2016. Vol. 9, no 9, 730
Keyword [en]
wave energy converter (WEC); electrical control; damping force; wave energy
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:uu:diva-303356DOI: 10.3390/en9090730OAI: oai:DiVA.org:uu-303356DiVA: diva2:971633
Available from: 2016-09-17 Created: 2016-09-17 Last updated: 2016-09-24Bibliographically approved
In thesis
1.
The record could not be found. The reason may be that the record is no longer available or you may have typed in a wrong id in the address field.
2.
The record could not be found. The reason may be that the record is no longer available or you may have typed in a wrong id in the address field.

Open Access in DiVA

fulltext(2890 kB)10 downloads
File information
File name FULLTEXT01.pdfFile size 2890 kBChecksum SHA-512
e9b3ab9a612e8461af1f796b69af31cca4bfb5b63942bfb86d35f8d77eedededb215833411f5d8505edd7f5e488f3e855f476f10512efc0f154c79a4c8a9ed95
Type fulltextMimetype application/pdf

Other links

Publisher's full text

Search in DiVA

By author/editor
Hong, YueEriksson, MikaelBoström, CeciliaWaters, Rafael
By organisation
Electricity
In the same journal
Energies
Engineering and Technology

Search outside of DiVA

GoogleGoogle Scholar
Total: 10 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 42 hits
ReferencesLink to record
Permanent link

Direct link