Wave energy converters (WECs) inherently necessitate appropriate control technology to operate at optimal efficiency. A particularly well-established family of WEC controllers is based upon a composite structure, where an optimal velocity reference is generated via direct optimal control procedures, followed by a suitable tracking control strategy. Recently, second-order sliding mode (SOSM) control has been shown to be a promising technique for the latter reference tracking problem in WEC systems, being able to achieve robust performance with finite-time convergence. Motivated by the potential of SOSM control within the wave energy field, this paper provides an experimental assessment of SOSM in a tailored hardware-in-the-loop system, located within the facilities of the Centre for Ocean Energy Research, Ireland. We show that the proposed controller is able to achieve robust reference tracking in a variety of wave conditions, consistently maximising energy absorption at virtually the same level of performance obtained in simulation, hence being an ideal candidate for WEC applications.
Preliminary experimental assessment of second-order sliding mode control for wave energy conversion systems / Faedo, Nicolas; Mosquera, Facundo D.; Evangelista, Carolina A.; Ringwood, John V.; Puleston, Paul F.. - ELETTRONICO. - (2022), pp. 63-68. (Intervento presentato al convegno 2022 Australian & New Zealand Control Conference (ANZCC)).
Preliminary experimental assessment of second-order sliding mode control for wave energy conversion systems
Faedo, Nicolas;Mosquera, Facundo D.;
2022
Abstract
Wave energy converters (WECs) inherently necessitate appropriate control technology to operate at optimal efficiency. A particularly well-established family of WEC controllers is based upon a composite structure, where an optimal velocity reference is generated via direct optimal control procedures, followed by a suitable tracking control strategy. Recently, second-order sliding mode (SOSM) control has been shown to be a promising technique for the latter reference tracking problem in WEC systems, being able to achieve robust performance with finite-time convergence. Motivated by the potential of SOSM control within the wave energy field, this paper provides an experimental assessment of SOSM in a tailored hardware-in-the-loop system, located within the facilities of the Centre for Ocean Energy Research, Ireland. We show that the proposed controller is able to achieve robust reference tracking in a variety of wave conditions, consistently maximising energy absorption at virtually the same level of performance obtained in simulation, hence being an ideal candidate for WEC applications.File | Dimensione | Formato | |
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https://hdl.handle.net/11583/2979757