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J. Mar. Sci. Eng. 2018, 6(1), 26; https://doi.org/10.3390/jmse6010026

Small-Scale Renewable Energy Converters for Battery Charging

1
Swedish Centre for Renewable Electric Energy Conversion, Division for Electricity, Department of Engineering Sciences, The Ångstrom Laboratory, P.O Box 534, SE-75121 Uppsala, Sweden
2
School of Mechatronic Engineering, Universiti Malaysia Perlis, 02600 Arau, Perlis, Malaysia
3
Built Environment Energy Systems Group (BEESG), Division of Solid State Physics, Department of Engineering Sciences, Uppsala University, PO Box 534, 751 21 Uppsala, Sweden
*
Author to whom correspondence should be addressed.
Received: 14 January 2018 / Revised: 9 February 2018 / Accepted: 5 March 2018 / Published: 13 March 2018
(This article belongs to the Special Issue Advances in Ocean Wave Energy Conversion)
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Abstract

This paper presents two wave energy concepts for small-scale electricity generation. In the presented case, these concepts are installed on the buoy of a heaving, point-absorbing wave energy converter (WEC) for large scale electricity production. In the studied WEC, developed by Uppsala University, small-scale electricity generation in the buoy is needed to power a tidal compensating system designed to increase the performance of the WEC in areas with high tides. The two considered and modeled concepts are an oscillating water column (OWC) and a heaving point absorber. The results indicate that the OWC is too small for the task and does not produce enough energy. On the other hand, the results show that a hybrid system composed of a small heaving point absorber combined with a solar energy system would be able to provide a requested minimum power of around 37.7 W on average year around. The WEC and solar panel complement each other, as the WEC produces enough energy by itself during wintertime (but not in the summer), while the solar panel produces enough energy in the summer (but not in the winter). View Full-Text
Keywords: small wave energy converter; oscillating water column; heaving point absorber small wave energy converter; oscillating water column; heaving point absorber
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Ayob, M.N.; Castellucci, V.; Göteman, M.; Widén, J.; Abrahamsson, J.; Engström, J.; Waters, R. Small-Scale Renewable Energy Converters for Battery Charging. J. Mar. Sci. Eng. 2018, 6, 26.

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