Modelling of the WITT wave energy converter
Modelling of the WITT wave energy converter
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DOI：
10.1016/j.renene.2017.08.004
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发表时间：
2018
期刊：
影响因子：
8.7
通讯作者：
S. Crowley;R. Porter;D. Taunton;P. Wilson
中科院分区：
文献类型：
--
作者：
S. Crowley;R. Porter;D. Taunton;P. Wilson
本文描述了一种新型海浪能量转换器的理论建模和实验验证，该转换器由一个漂浮的系泊球形船体组成，其中包含一个机械摆装置，当入射波激发时，从机械摆装置中获取能量。实验结果与理论预测结果相吻合。根据物理和流体动力学参数，导出了该装置捕获宽度的显式表达式。这暴露了该装置的多重谐振特性，使其能够在广泛的波周期范围内有效地工作。随后的高效计算允许在较大的设备参数和模型海谱空间上执行设计的数值优化。这项工作的重点是对部署在苏格兰EMEC站点的不同尺寸设备的功率容量进行可靠的估计。预测结果与现有的波能转换器概念相比较有利。
The paper describes the theoretical modelling and experimental validation of a novel design of ocean wave energy converter which is comprised of a floating, moored, spherical hull containing a mechanical pendulum arrangement from which power is taken when excited by incident waves. Experimental results are shown to compare favourably with those predicted by the theory. An explicit expression is derived for the capture width of the proposed device in terms of physical and hydrodynamic parameters. This exposes the multiple resonant characteristics of the device which enable it to operate effectively over a broad range of wave periods. The subsequent efficient computations allows a numerical optimisation of the design to be performed over a large space of device parameters and model sea spectrum. The work is focussed towards producing reliable estimates for the power capacity of different sized devices deployed at the EMEC site in Scotland. Predictions compare favourably with existing wave energy converter concepts.