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Optimum power capture of a new wave energy converter in irregular waves

Research output: Contribution in Book/Report/ProceedingsConference contribution

Published

Publication date2009
Host publicationProceedings of the 28th International Conference on Ocean, Offshore and Arctic Engineering--2009 : presented at [the] 28th International Conference on Ocean, Offshore and Arctic Engineering : May 31-June 5, 2009, Honolulu, Hawaii, USA
Place of publicationNew York
PublisherAmerican Society of Mechanical Engineers (ASME)
Pages885-890
Number of pages6
Volume4 A & B
ISBN (Print)978-0-7918-4344-4
Original languageEnglish

Conference

Conference28th International Conference on Ocean, Offshore and Arctic Engineering
CityHonolulu
Period31/05/095/06/09

Conference

Conference28th International Conference on Ocean, Offshore and Arctic Engineering
CityHonolulu
Period31/05/095/06/09

Abstract

This paper presents the optimum power capture of a new point-absorber wave energy converter, in irregular waves. A stepwise control system for the wave energy converter (WEC) is developed. The control system is used to efficiently extract power from irregular waves where amplitudes vary from wave to wave. The Bretschneider spectrum is used in the experiment and the device is 'tuned' to the peak period of the sea state. It is shown that this WEC has a reasonable capture width in irregular waves. However, the optimum mean power depends on the wave spectrum, the shape of the collector body, its freeboard and the device pivot depth.