Simulation of a self-adaptively controlled OWC in a nonlinear numerical wave tank

Citation
G. Chatry et al., Simulation of a self-adaptively controlled OWC in a nonlinear numerical wave tank, INT J OFFSH, 10(4), 2000, pp. 269-275
Citations number
22
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Civil Engineering
Journal title
INTERNATIONAL JOURNAL OF OFFSHORE AND POLAR ENGINEERING
ISSN journal
1053-5381 → ACNP
Volume
10
Issue
4
Year of publication
2000
Pages
269 - 275
Database
ISI
SICI code
1053-5381(200012)10:4<269:SOASCO>2.0.ZU;2-H
Abstract
An oscillating water column (OWC) wave-energy device Is simulated in a 2D n umerical wave tank. The fluid flow modelling is fully nonlinear. A new wave generation by spinning dipole is proposed; when coupled to a robust wave a bsorption technique, it permits long-term simulations without energy accumu lation in the flume. The turbine power takeoff mechanism is driven by a sel f-adaptive controller. The technique initially developed for active piston wave absorbers is applied successfully to OWC power plants. It is based on a Kalman filter frequency tracking algorithm. This control compares favorab ly with more conventional open-loop systems.