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Evolutionary algorithms for the development and optimisation of wave energy converter control systems.

Gunn, K. and Taylor, C. James and Lingwood, C. (2009) Evolutionary algorithms for the development and optimisation of wave energy converter control systems. In: 8th European Wave and Tidal Energy Conference. .

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Abstract

Many strategies have been proposed for the control of wave energy converters (WECs). In order to evaluate these control strategies, they need to be optimised for realistic operating conditions. This paper develops a generic approach for WEC optimisation based on the use of Evolutionary Algorithms (EAs). A new evolutionary algorithm is developed to efficiently resolve problems found in WEC control. Simulation results are presented for tuning an illustrative device in both sinusoidal and real waves; and for optimisation of slow tuning, latching and fast tuning control systems. These results show an increase in the power capture of the device using the optimised control, and demonstrate a convergence to an optimum solution within the constraints presented. In contrast to conventional methods, the proposed EA successfully optimises the control algorithms for realistic seas without prior assumptions. The capabilities of EAs in a machine learning setting, in which the control algorithm continues to evolve after installation, are then considered.

Item Type: Contribution in Book/Report/Proceedings
Uncontrolled Keywords: Wave Energy Converters ; Optimisation ; Evolutionary Algorithm ; Latching ; Control
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Departments: Faculty of Science and Technology > Engineering
ID Code: 49418
Deposited By: ep_importer_pure
Deposited On: 04 Aug 2011 10:59
Refereed?: No
Published?: Published
Last Modified: 24 Jan 2014 06:00
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/49418

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