Wave Energy Converter’s Slack and Stiff Connection: Study of Absorbed Power in Irregular Waves

Two different concepts of wave energy converter coupled to the novel C-GEN linear generator have been studied numerically, including evaluation buoy sizes. The first concept has a slack connection between and on seabed. Another is based stiff placed an offshore platform. Three approaches calculate damping force utilized within this study: optimal coefficient, R-load, RC-load. R-load model for load applied grid-connected with passive rectification. RC-load phase angle compensation system active radiation forces originating from oscillatory motion approximated using transfer function in frequency domain vector fitting algorithm. A comparison approximation methods presented, their accuracy evaluated. advantage method shown, especially higher orders which fit high accuracy. study’s final results are shown terms absorbed power sea states March 2018 at Wave Hub, UK.