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Energies 2016, 9(7), 506; doi:10.3390/en9070506

A Review of Wave-to-Wire Models for Wave Energy Converters

Centre for Ocean Energy Research, Maynooth University, Maynooth, Co. Kildare, Ireland
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Author to whom correspondence should be addressed.
Academic Editor: Jens Peter Kofoed
Received: 23 March 2016 / Revised: 15 June 2016 / Accepted: 17 June 2016 / Published: 30 June 2016

Abstract

Control of wave energy converters (WECs) has been very often limited to hydrodynamic control to absorb the maximum energy possible from ocean waves. This generally ignores or significantly simplifies the performance of real power take-off (PTO) systems. However, including all the required dynamics and constraints in the control problem may considerably vary the control strategy and the power output. Therefore, this paper considers the incorporation into the model of all the conversion stages from ocean waves to the electricity network, referred to as wave-to-wire (W2W) models, and identifies the necessary components and their dynamics and constraints, including grid constraints. In addition, the paper identifies different control inputs for the different components of the PTO system and how these inputs are articulated to the dynamics of the system. Examples of pneumatic, hydraulic, mechanical or magnetic transmission systems driving a rotary electrical generator, and linear electric generators are provided. View Full-Text
Keywords: wave energy; wave-to-wire model; wave resource; hydrodynamic model; hydraulic system; electric generator; power converters; electricity network wave energy; wave-to-wire model; wave resource; hydrodynamic model; hydraulic system; electric generator; power converters; electricity network
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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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MDPI and ACS Style

Penalba, M.; Ringwood, J.V. A Review of Wave-to-Wire Models for Wave Energy Converters. Energies 2016, 9, 506.

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