Journal
ENERGY
Volume 112, Issue -, Pages 852-867Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.energy.2016.06.054
Keywords
Wave energy converter; Oscillating water column; Oceanographic monitoring; Long term deployment
Categories
Funding
- Portuguese Foundation for Science and Technology (FCT) through IDMEC [LAETA Pest-OE/EME/LA0022]
- FCT [IF/01457/2014, SFRH/BPD/93209/2013, PTDC/MAR-TEC/0914/2014]
- Marie Curie Actions of the European Union's Seventh Framework Programme FP7 under REA grant [607656]
- European Union [654444]
- Fundação para a Ciência e a Tecnologia [PTDC/MAR-TEC/0914/2014] Funding Source: FCT
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The quest for conquering the ocean and understanding its behaviour has been a challenge with increasing needs for innovation and technology investments in many areas of strategic value for the promotion, growth and competitiveness of the marine economy worldwide. Current oceanographic buoy systems are limited to low power levels and intermittency of data acquisition and transmission, among other aspects that need to be overcome to comply with new and more demanding applications. The development of marine activities requires more powerful and reliable data-acquisition systems to guarantee their future sustainability. This work presents a new systematic methodology for optimum design of wave energy converters. The methodology was applied to design two self-powered sensor buoys for long term monitoring based on the oscillating-water-column principle. The optimisation focussed on buoy hydrodynamic shape, sizing and selection of the turbine and the generator, as well as the control law of the generator electromagnetic torque. The performance was assessed through the use of the power matrix and a set of performance indicators. These performance indicators were defined to allow a simple comparison between different wave energy concepts. The results confirm the applicability of the designed buoys for a next generation of oceanographic monitoring systems. (C) 2016 Elsevier Ltd. All rights reserved.
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