Modelling and control of oscillating-body wave energy converters with hydraulic power take-off and gas accumulator
- 作者：Antó ; nio F. de O. Falcã ; o
- 关键词：Wave energy ; Oscillating bodies ; Modelling ; Control ; Hydraulics ; Gas accumulator
- 刊名：Ocean Engineering
- 出版年：2007
- 期刊代码：133_00298018
- 类别：et
- 出版时间：October 2007
- 卷：34
- 期：14-15
- 页码：2021-2032
- 文件大小：400 K
摘要
Oscillating bodies constitute a major class of wave energy converters, especially for offshore deployment. In general, such converters use as power take-off system either a hydraulic system (high-head water turbine or high-pressure-oil hydraulic motor) or a directly driven linear electric generator. The paper addresses the former case, especially when a gas accumulator is employed as energy storage device that provides a smoothing effect to the electric power output. Although there are several wave energy projects currently at different stages of development (including prototype testing) that fit this description, the paper is intended to be a general modelling study rather than to concentrate on a particular device. Special attention is devoted to power take-off performance and design, and to the control of the system.