Optimum power capture of a new wave energy converter in irregular waves

• Main Authors: Aggidis, George A., Rahmati, Mohammad T., Chaplin, Robert V., McCabe, Andrew P., Bhinder, Majid A., Mingham, Clive G., Causon, Derek M.
• Format: Text
• Language: unknown
• Published: American Society of Mechanical Engineers (ASME) 2009
• Subjects: Pivot; Arctic
• Online Access: https://eprints.lancs.ac.uk/id/eprint/61534/

This paper presents the optimum power capture of a new point-absorber wave energy converter, in irregular waves. A stepwise control system for the wave energy converter (WEC) is developed. The control system is used to efficiently extract power from irregular waves where amplitudes vary from wave to wave. The Bretschneider spectrum is used in the experiment and the device is 'tuned' to the peak period of the sea state. It is shown that this WEC has a reasonable capture width in irregular waves. However, the optimum mean power depends on the wave spectrum, the shape of the collector body, its freeboard and the device pivot depth.