When analytically optimising the control strategy in wave energy converters which use a point absorber, the efficiency aspect is generally neglected. The results presented in this paper provide an analytical expression for the mean harvested electrical power in non-ideal efficiency situations. These have been derived under the assumptions of monochromatic incoming waves and linear system behaviour. This allows to establish the power factor of a system with non-ideal efficiency. The locus of the optimal reactive control parameters is then studied and an alternative method of representation is developed to model the optimal control parameters. Ultimately we present a simple method of choosing optimal control parameters for any combination of efficiency and wave frequency.
Optimising Reactive Control in Non-Ideal Efficiency Wave Energy Converters
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Strager, T, Martin dit Neuville, A, Fernández López, P, Giorgio, G, Mureşan, T, Andersen, P, Nielsen, KM, Pedersen, TS, & Vidal Sánchez, E. "Optimising Reactive Control in Non-Ideal Efficiency Wave Energy Converters." Proceedings of the ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering. Volume 9A: Ocean Renewable Energy. San Francisco, California, USA. June 8–13, 2014. V09AT09A002. ASME. https://doi.org/10.1115/OMAE2014-23005
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