Linear model identification of the Archimedes Wave Swing

This paper uses Levy´s identification method to build linear, second-order models for the Archimedes Wave Swing (AWS), an off-shore, fully-submerged, point absorber wave energy converter, expected to behave much like a mass-spring-damper system, though with relevant non-linearities. Since very few experimental data is available, data from an accurate non-linear simulator of the AWS was used. One of the identified models yields a satisfactory performance, and can now be used for the development of control strategies for the AWS.