期刊
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
卷 41, 期 -, 页码 454-472出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.rser.2014.08.022
关键词
Tidal stream energy; Resource assessment; Farm design
资金
- New Zealand Marsden Fund [12-UO-101]
- Center of Excellence grant from the Research Council of Norway
- EPSRC Platform Grant [EP/L000407/1]
- EPSRC [EP/L000407/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/L000407/1] Funding Source: researchfish
Much of the global tidal current energy resource lies in the accelerated flows along narrow channels. These channels have the potential to produce 10-1000 s of MW of electricity. However, realizing 100 MW of a channel's potential is much more complex than installing 100 1-MW turbines because large scale power extraction reduces tidal currents throughout the channel, changing the resource. This synthesis and review gives an overview of the issues and compromises in designing the layout of the large tidal turbine arrays required to realize this potential. The paper focuses on macro- and micro-design of arrays. Macro-design relates to the total number of turbines and their gross arrangement into rows, while micro-design adjusts the relative positions of the turbines within a grid and the spacing between rows. Interdependent macro-design compromises balance the total number of turbines, array power output, the power output of each turbine, the loads the turbines experience, turbine construction costs, maintaining navigability along the channel and any environmental impacts due to flow reduction. A strong emphasis is placed on providing physical insights about how channel-scale dynamics and the duct-effect impact on the compromises in array design. This work is relevant to the design of any large array which blocks more than 2-5% of a channel's cross-section, be it 2 turbines in a small channel or 100 turbines in a large channel. (C) 2014 Elsevier Ltd. All rights reserved.
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