Results 11 to 20 of about 4,571,541 (292)

An Investigation into Power from Pitch-Surge Point-Absorber Wave Energy Converters. [PDF]

, 2007
There is a worldwide opportunity for clean renewable power. The results from the UK Government's "Marine Energy Challenge" showed that marine energy has the potential to become competitive with other forms of energy.
Chaplin, R. V., Aggidis, George A.
core   +5 more sources

Control of a Point Absorber Using Reinforcement Learning [PDF]

IEEE Transactions on Sustainable Energy, 2016
This work presents the application of reinforcement learning for the optimal resistive control of a point absorber. The model-free Q-learning algorithm is selected in order to maximise energy absorption in each sea state. Step changes are made to the controller damping, observing the associated penalty, for excessive motions, or reward, i.e.
Anderlini, Enrico, Forehand, David I.M., Stansell, Paul, Xiao, Qing, Abusara, Mohammad   +4 more
openaire   +6 more sources

Research on Size Optimization of Wave Energy Converters Based on a Floating Wind-Wave Combined Power Generation Platform

Energies, 2022
Wind energy and wave energy often co-exist in offshore waters, which have the potential and development advantages of combined utilization. Therefore, the combined utilization of wind and waves has become a research hotspot in the field of marine ...
Xianxiong Zhang, Bin Li, Zhenwei Hu, Jiang Deng, Panpan Xiao, Mingsheng Chen   +5 more
doaj   +1 more source

Point Absorber Limits to Future Gravitational-Wave Detectors [PDF]

Physical Review Letters, 2021
7 pages, 3 ...
Wenxuan Jia, Hiroaki Yamamoto, Kevin Kuns, Anamaria Effler, Matthew Evans, Peter Fritschel, R. Abbott, C. Adams, R. X. Adhikari, A. Ananyeva, S. Appert, K. Arai, J. S. Areeda, Y. Asali, S. M. Aston, C. Austin, A. M. Baer, M. Ball, S. W. Ballmer, S. Banagiri, D. Barker, L. Barsotti, J. Bartlett, B. K. Berger, J. Betzwieser, D. Bhattacharjee, G. Billingsley, S. Biscans, C. D. Blair, R. M. Blair, N. Bode, P. Booker, R. Bork, A. Bramley, A. F. Brooks, D. D. Brown, A. Buikema, C. Cahillane, K. C. Cannon, X. Chen, A. A. Ciobanu, F. Clara, C. M. Compton, S. J. Cooper, K. R. Corley, S. T. Countryman, P. B. Covas, D. C. Coyne, L. E. H. Datrier, D. Davis, C. Di Fronzo, K. L. Dooley, J. C. Driggers, P. Dupej, S. E. Dwyer, T. Etzel, T. M. Evans, J. Feicht, A. Fernandez-Galiana, V. V. Frolov, P. Fulda, M. Fyffe, J. A. Giaime, K. D. Giardina, P. Godwin, E. Goetz, S. Gras, C. Gray, R. Gray, A. C. Green, E. K. Gustafson, R. Gustafson, E. D. Hall, J. Hanks, J. Hanson, T. Hardwick, R. K. Hasskew, M. C. Heintze, A. F. Helmling-Cornell, N. A. Holland, J. D. Jones, S. Kandhasamy, S. Karki, M. Kasprzack, K. Kawabe, N. Kijbunchoo, P. J. King, J. S. Kissel, Rahul Kumar, M. Landry, B. B. Lane, B. Lantz, M. Laxen, Y. K. Lecoeuche, J. Leviton, J. Liu, M. Lormand, A. P. Lundgren, R. Macas, M. MacInnis, D. M. Macleod, G. L. Mansell, S. Márka, Z. Márka, D. V. Martynov, K. Mason, T. J. Massinger, F. Matichard, N. Mavalvala, R. McCarthy, D. E. McClelland, S. McCormick, L. McCuller, J. McIver, T. McRae, G. Mendell, K. Merfeld, E. L. Merilh, F. Meylahn, T. Mistry, R. Mittleman, G. Moreno, C. M. Mow-Lowry, S. Mozzon, A. Mullavey, T. J. N. Nelson, P. Nguyen, L. K. Nuttall, J. Oberling, Richard J. Oram, C. Osthelder, D. J. Ottaway, H. Overmier, J. R. Palamos, W. Parker, E. Payne, A. Pele, R. Penhorwood, C. J. Perez, M. Pirello, H. Radkins, K. E. Ramirez, J. W. Richardson, K. Riles, N. A. Robertson, J. G. Rollins, C. L. Romel, J. H. Romie, M. P. Ross, K. Ryan, T. Sadecki, E. J. Sanchez, L. E. Sanchez, T. R. Saravanan, R. L. Savage, D. Schaetzl, R. Schnabel, R. M. S. Schofield, E. Schwartz, D. Sellers, T. Shaffer, D. Sigg, B. J. J. Slagmolen, J. R. Smith, S. Soni, B. Sorazu, A. P. Spencer, K. A. Strain, L. Sun, M. J. Szczepańczyk, M. Thomas, P. Thomas, K. A. Thorne, K. Toland, C. I. Torrie, G. Traylor, M. Tse, A. L. Urban, G. Vajente, G. Valdes, D. C. Vander-Hyde, P. J. Veitch, K. Venkateswara, G. Venugopalan, A. D. Viets, T. Vo, C. Vorvick, M. Wade, R. L. Ward, J. Warner, B. Weaver, R. Weiss, C. Whittle, B. Willke, C. C. Wipf, L. Xiao, Hang Yu, Haocun Yu, L. Zhang, M. E. Zucker   +199 more
openaire   +5 more sources

Dynamics of Heaving Buoy Wave Energy Converters with a Stiffness Reactive Controller

Energies, 2020
Heaving buoy wave energy converters (WEC) are floating oscillators, commonly modeled as single-degree-of-freedom vibrating systems. As the wave frequencies change according to the sea state, these devices must be controlled to maximize energy absorption.
Ahmed H. Sakr, Sayed M. Metwalli, Yasser H. Anis   +2 more
doaj   +1 more source

The experimental performance of a nonlinear dynamic vibration absorber [PDF]

, 2013
This paper investigates the physical behaviour andeffectiveness of a nonlinear dynamic vibration absorber(NDVA). The nonlinear absorber considered involves anonlinear hardening spring which was designed andattached to a cantilever beam excited by a ...
Ferguson, N.S., Brennan, M.J., Hsu, Y.S.
core   +2 more sources

Perfectly Absorbing Exceptional Points and Chiral Absorbers

Physical Review Letters, 2019
6 pages main text, 4 supplemental; 3 ...
Sweeney, William R., Hsu, Chia Wei, Rotter, Stefan, Stone, A. Douglas   +3 more
openaire   +4 more sources

Experimental and CFD Assessment of Harmonic Characteristics of Point-Absorber Wave-Energy Converters with Nonlinear Power Take-Off System

Journal of Marine Science and Engineering, 2023
The wave-energy excitation of point absorbers is highly associated with their resonant movement, and harmonic characteristics are of increasing concern in affecting resonance.
Yang Yi, Ke Sun, Yongqian Liu, Gang Ma, Chuankai Zhao, Fukang Zhang, Jianhua Zhang   +6 more
doaj   +1 more source

Point Absorber Wave Energy Harvesters: A Review of Recent Developments

Energies, 2018
Even though ocean waves around the world are known to contain high and dense amounts of energy, wave energy harvesters are still not as mature as other forms of renewable energy harvesting devices, especially when it comes to commercialization, mass ...
Elie Al Shami, Ran Zhang, Xu Wang
doaj   +1 more source

Optimal Constant DC Link Voltage Operation of aWave Energy Converter

Energies, 2013
This article proposes a simple and reliable damping strategy for wave powerfarm operation of small-scale point-absorber converters. The strategy is based on passiverectification onto a constant DC-link, making it very suitable for grid integration of the
Mats Leijon, Venugopalan Kurupath, Rickard Ekström   +2 more
doaj   +1 more source