Garcia-Violini, Demian and Pena-Sanchez, Yerai and Faedo, Nicolas and Ringwood, John V. (2020) An Energy-Maximising Linear Time Invariant Controller (LiTe-Con) for Wave Energy Devices. IEEE Transactions on Sustainable Energy, 11 (4). pp. 2713-2721. ISSN 1949-3029

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Abstract

A Linear Time Invariant (LTI) energy-maximising control strategy for Wave Energy Converters (WECs) is proposed in this paper. Using the fundamental requirement of impedance matching, the controller is tuned to maximise the energy obtained under polychromatic wave excitation. Given the LTI nature of the proposed controller, the design and implementation procedure is significantly simpler than well-established energy-maximising controllers, including state-of-the-art numerical optimisation routines, which are predominant in this field. Additionally, a LTI constraint handling mechanism is provided. The effectiveness of both the LTI control strategy and the constraint handling mechanism are assessed using regular and irregular waves in unconstrained and constrained cases. The resulting performance is compared to those obtained using existing WEC optimal control strategies. Finally, the benefits, in terms of power production, for both the controller and the constraint handling mechanism are explicitly highlighted by means of an application case

Item Type:	Article
Additional Information:	Cite as: D. García-Violini, Y. Peña-Sanchez, N. Faedo and J. V. Ringwood, "An Energy-Maximising Linear Time Invariant Controller (LiTe-Con) for Wave Energy Devices," in IEEE Transactions on Sustainable Energy, vol. 11, no. 4, pp. 2713-2721, Oct. 2020, doi: 10.1109/TSTE.2020.2971392.
Keywords:	Wave energy; optimal control; impedance-matching; linear time invariant (LTI);
Academic Unit:	Faculty of Science and Engineering > Electronic Engineering
Item ID:	15959
Identification Number:	https://doi.org/10.1109/TSTE.2020.2971392
Depositing User:	Professor John Ringwood
Date Deposited:	16 May 2022 11:11
Journal or Publication Title:	IEEE Transactions on Sustainable Energy
Publisher:	IEEE Explore
Refereed:	Yes
URI:	Publisher
Use Licence:	This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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