Abstract
In this paper, we present a port-Hamiltonian (pH) modeling of the wave-structure interaction described by the Cummins’ equation. This allows us to directly interconnect the wave-structure pH model with an existing pH model of (an array of) wave energy converters (WEC)s, thereby enabling the application of existing pH-based control and optimization methods to the interconnected WEC. We present a Hamiltonian function corresponding to the radiation terms, based on which a pH model of radiation forces is constructed. Lastly, using a simple array of floaters, where each one is connected to a linear power take-off (PTO) system, we compare the simulation of our pH model with the results of the standard open-source toolbox WEC-Sim, which is designed for simulating any type of WEC.
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