This paper presents an innovative modeling technique that combines experimental force measurements from a full scale linear generator with a coupled model of a two body, moored floating system to investigate the performance of a wave energy conversion system. An experiment was conducted using the Oregon State University’s wave energy linear test bed to characterize the frictional and electromagnetic forces generated by the SeaBeavI linear generator. These force characteristics have been incorporated into a coupled model using a numerical fluid-structure interaction model, OrcaFlex, to predict the energy extraction potential of the system.
Issue Section:Ocean Engineering
Keywords:ocean waves, wave energy, linear permanent magnet generator, coupled analysis, computational fluid dynamics, frictional force characterization
Topics:Buoys, Generators, Spar platforms, Stress, Wave energy, Wing spars, Mooring, Electromagnetic force, Friction, Waves, Magnets
D. C., and
J. R. M., 1976, “
The Architecture of Nodding Duck Wave Power Generators,” The Naval Architect, pp.
D. V., 1979, “
Some Theoretical Aspects of Three Dimensional Wave Energy Absorbers,”
Proceedings of the First Symposium on Wave Energy Utilization, Chalmers University of Technology, Gothenburg, Sweden, pp.
Ocean Waves and Oscillating Systems,
Cambridge University Press,
K., 1977, “
Theory for Absorption of Wave Power by a System of Interacting Bodies,”
J. Ship Res.0022-4502,
L. M. C., 1997, “
The Energy Conversion Performance of Several Types of Wells Turbine Designs,”
Proceedings of the Institute of Mechanical Engineers, pp.
Ocean Power Technologies, 2008, http://www.oceanpowertechnologies.com/http://www.oceanpowertechnologies.com/.
M. A., 2002, “
Electrical Generators for Direct Drive Wave Energy Converters,”
Proceedings of the IEEE Generation, Transmission and Distribution, pp.
M., 2005, “
Simulation of Wave-Energy Converter With Octagonal Linear Generator,”
IEEE Journal of Oceanic Science,
M. E. C., and
F., 2004, “
Linear PM Generator System for Wave Energy Conversion in the AWS,”
IEEE Trans. Energy Convers.0885-8969,
J. H., 2007, “
Novel Design and Implementation of a Permanent Magnet Linear Tubular Generator for Wave Energy Conversion,” MS thesis, Oregon State University, Corvallis, OR.
Design, Construction, and Ocean Testing of a Taut-Moored Dual-Body Wave Energy Converter With a Linear Generator Power Take-Off,”
Renewable Energy0960-1481, submitted.
2006, OrcaFlex Manual, Orcina Ltd., Daltongate, UK.
M. E., 1986,
Principles of Electric Machines With Power Electronic Applications,
Englewood Cliffs, NJ.
CD-Adapco, 2008, STAR-CCM+, http://www.cd-adapco.com/products/STAR-CCM_plus/http://www.cd-adapco.com/products/STAR-CCM_plus/.
R. G., and
R. A., 1991,
Water Wave Mechanics for Engineers and Scientists,
Copyright © 2010
by American Society of Mechanical Engineers