Solo Duck Linear Analysis

Abstract

The motion of a single duck wave energy converter in the presence of waves is described by a linear matrix equation, formulated in the frequency domain. An equation for the extracted power in spectra is derived for any linear controller. The parameters in the equation of motion, namely, the radiation impedance and wave force coefficients, are found from a model by experiment in a wave tank. Predictions for the absorbed power are compared against further measurements made in the tank when the duck's motion is governed by a simple linear controller, implemented on a digital computer.