On improving wave energy conversion, part II: Development of latching control technologies

Wanan Sheng, Raymond Alcorn and Anthony Lewis

Renewable Energy, 2015, vol. 75, issue C, 935-944

Abstract: In the first part of the investigation, a new latching control technology is proposed, and it has been shown that the new latching control technique is capable of greatly improving wave energy conversion in regular waves. In this part of the research, a new analysis technique is developed for studying the latching control technology. A ‘time-out’ method is developed and employed for ‘re-packing’ the dynamic system, hence the analysis of the latching control technology can be changed from a complete nonlinear dynamics into a simple linear dynamic system, and it is further proven that the ‘re-packed’ dynamic system can be transformed back to frequency domain for further analysis. In the research, we could prove how the phase optimal condition can be attained. Further on, the new latching control technology will be used in irregular waves. Unlike many other latching control technologies, the new latching control does not need the detailed future information. In the development of the technology, we will show how we can obtain the latching duration for irregular waves for improving wave power extraction. As a result, we could remove one barrier in implementing latching control strategy while the wave energy conversion can still be much improved.

Keywords: Point absorber; Wave energy conversion; Power take-off control; WEC optimisation; Interaction of wave and structure (search for similar items in EconPapers)
Date: 2015
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (20)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0960148114006144
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:75:y:2015:i:c:p:935-944

DOI: 10.1016/j.renene.2014.09.049

Access Statistics for this article

Renewable Energy is currently edited by Soteris A. Kalogirou and Paul Christodoulides

More articles in Renewable Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().