Experimental and numerical comparisons of self-reacting point absorber wave energy converters in regular waves

被引：136

作者：

Beatty, Scott J. ^{[1
]}

Hall, Matthew ^{[1
]}

Buckham, Bradley J. ^{[1
]}

Wild, Peter ^{[1
]}

Bocking, Bryce ^{[1
]}

机构：

[1] Univ Victoria, Dept Mech Engn, Victoria, BC V8W 3P6, Canada

来源：

OCEAN ENGINEERING | 2015年 / 104卷

基金：

加拿大自然科学与工程研究理事会;

关键词：

Wave energy conversion; Model testing; Frequency domain; Power take-off; Self-reacting; Point absorbers; ABSORPTION; CONVERSION; MOTION;

D O I：

10.1016/j.oceaneng.2015.05.027

中图分类号：

U6 [水路运输]; P75 [海洋工程];

学科分类号：

0814 ; 081505 ; 0824 ; 082401 ;

摘要：

An experimental and numerical comparison of the performance of two self-reacting point absorber wave energy converter designs is undertaken for heave motions. The designs are either currently, or have recently been, under development for commercialization. The experiments consist of a series of 1:25 scale model tests. The physical model features a re-configurable reacting body shape, a feedback controlled power take-off, and a heave motion constraint apparatus. Detailed descriptions of the reconfigurable model design, the analysis/test methodologies, and power capture are given. An extension of Budal's theoretical upper bound on power capture for application to self-reacting point absorbers is proposed. A quantitative comparison is made of the two self-reacting point absorber designs in terms of displacement, power take-off force requirements, and power capture in typical (non-extreme) operating conditions with reference to theoretical upper bounds. The design implications of a reactive power take-off control scheme and relative motion constraints on the wave energy converters are investigated using an experimentally validated numerical dynamics model. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：370 / 386

页数：17

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