期刊
RENEWABLE ENERGY
卷 85, 期 -, 页码 714-724出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.renene.2015.07.015
关键词
Wave energy; Oscillating-water-column; Spar-buoy; Power take-off; Control; Biradial turbine
资金
- European Community's Seventh Framework Programme under MARINET (Marine Renewables Infrastructure Network) initiative
- Portuguese Foundation for Science and Technology (FCT) [LAETA Pest-OE/EME/LA0022, PTDC/EME-MFE/111763/2009]
- FCT [IF/01457/2014, SFRH/BPD/93209/2013]
The paper concerns the development of the PTO (power take-oft) control of an OWC (oscillating-water-column) spar-buoy wave energy converter. The OWC spar-buoy is an axisymmetric device consisting of a submerged vertical tail tube open at both ends, rigidly fixed to a floater that moves essentially in heave. The oscillating motion of the internal free surface relative to the floater-tube set, produced by the incident waves, makes the air flow through a novel self-rectifying air turbine: the biradial turbine. To reduce the losses of the PTO system at partial load, an electrical generator with a rated power twice the maximum expected average power conversion of the buoy was adopted. The control of the turbine-generator set under highly energetic sea-state conditions was experimentally investigated by means of tests performed in a PTO test rig. In the reported tests, the hydrodynamics of the OWC spar-buoy and the aerodynamics of the air turbine were numerically simulated in real-time and coupled with the experimental model of the turbine/electrical generator set in a hardware-in-the-loop configuration. The experimental results allowed the dynamic behaviour of the PTO to be characterized and provided validation of the proposed control algorithms that ensure operation within safe limits. (C) 2015 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据