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http://dx.doi.org/10.7846/JKOSMEE.2017.20.2.91

Performance Analysis of Wave Energy Converter Using a Submerged Pendulum Plate  

Cho, Il Hyoung (Department of Ocean System Engineering, Jeju National University)
Publication Information
Journal of the Korean Society for Marine Environment & Energy / v.20, no.2, 2017 , pp. 91-99 More about this Journal
Abstract
The parametric study was performed for performance enhancement of wave energy converter(WEC) using a submerged pendulum plate. The wave exciting moment and hydrodynamic moment were obtained by means of eigenfunction expansion method based on the linear potential theory, and then the roll response of a pendulum plate and time averaged extracted power were investigated. The optimal PTO damping coefficient was suggested to give optimal extracted power. The peak value of optimal extracted power occurs at the resonant frequency. The resonant peak and it's width increase, as the height and thickness of a pendulum plate increase. The mooring line installed at the end of the pendulum plate is effective for extracting wave energy because it can not only induce the resonance with the waves of the installation site but also increase the restoring moment in case of PTO-on. The WEC using a rolling pendulum plate suitable for the shallow water acts as breakwater as well as energy extraction device.
Keywords
Pendulum Plate; Wave Energy Converter; Extracted Power; Eigenfunction Expansion Method; PTO Damping Coefficient;
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