Next Article in Journal
Comparison Study of Two Semi-Active Hybrid Energy Storage Systems for Hybrid Electric Vehicle Applications and Their Experimental Validation
Next Article in Special Issue
A Method for Energy and Resource Assessment of Waves in Finite Water Depths
Previous Article in Journal
The Production of Engineered Biochars in a Vertical Auger Pyrolysis Reactor for Carbon Sequestration
Previous Article in Special Issue
Designing and Testing Composite Energy Storage Systems for Regulating the Outputs of Linear Wave Energy Converters
Article Menu
Issue 3 (March) cover image

Export Article

Open AccessArticle
Energies 2017, 10(3), 289; doi:10.3390/en10030289

Optimizing the Performance of Solo Duck Wave Energy Converter in Tide

1
Department of Mechanical Engineering, Harbin Institute of Technology, Harbin 150001, Heilongjiang, China
2
Shenzhen Graduate School, Harbin Institute of Technology, Shenzhen 518055, Guangdong, China
3
Department of Engineering Science, Uppsala University, Uppsala 75121, Sweden
*
Author to whom correspondence should be addressed.
Academic Editor: Stephen Nash
Received: 24 January 2017 / Accepted: 22 February 2017 / Published: 28 February 2017
(This article belongs to the Special Issue Numerical Modelling of Wave and Tidal Energy)
View Full-Text   |   Download PDF [5155 KB, uploaded 3 March 2017]   |  

Abstract

The high efficiency performance of the Edinburgh Duck wave energy converter (WEC) in 2D regular wave tests makes it a promising wave energy conversion scheme. A solo Duck WEC will be able to apply the point absorber effect to further enhance its performance. Since released degree of freedom will decrease the efficiency, a Duck WEC with fixed pitching axis will be a better option. However, for fixed supported WECs, tide is a non-ignorable consideration. In this paper, a movable mass method is utilized in the whole tidal range to not only balance the Duck to appropriate beak angles, but also follow the variation of hydrodynamic coefficients to keep cancelling the reactance of the system impedance so that complex conjugate control can be realized to optimize the power capture performance of the Duck WEC in tide. Results show that the beak angle should be adjusted to as large a value as possible so that the response amplitude of the Duck at maximum relative capture width will be reasonable small, and the lowest weight of the movable mass is found when its designed position locates at the center of the Duck profile. View Full-Text
Keywords: solo Duck; hydrodynamic coefficients; complex conjugate control; maximum relative capture width; movable mass method solo Duck; hydrodynamic coefficients; complex conjugate control; maximum relative capture width; movable mass method
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Wu, J.; Yao, Y.; Li, W.; Zhou, L.; Göteman, M. Optimizing the Performance of Solo Duck Wave Energy Converter in Tide. Energies 2017, 10, 289.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Energies EISSN 1996-1073 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top