Conference Publication Details
Mandatory Fields
Adrian C.M. O’Sullivan and Gordon Lightbody
The 20th World Congress of the International Federation of Automatic Control
The Effect of Viscosity on the Maximisation of Electrical Power from a Wave Energy Converter under Predictive Control
Optional Fields
MPC; LPV-MPC; power maximisation; viscosity; wave energy
Toulouse, France
In this paper, the non-linear effects of viscosity on the performance of a Wave Energy Converter (WEC) system are analysed. A standard linear Model Predictive Control (MPC) is used to show the negative effects that the unaccounted non-linear viscosity force in the hydrodynamic system has on the power absorption. A non-linear MPC (NLMPC) is then implemented, where the non-linear viscosity effects are included in the optimisation. A linear drag coefficient estimate of the non-linear viscosity is then included in the linear MPC; creating a Linear Viscous Model Predictive Control. When constraints are incorporated, it is shown that a single choice of the linear viscous drag coefficient for use within the linear MPC can provide comparable results to the non-linear MPC approach, over a wide range of sea states.
Science Foundation Ireland
Grant Details
Science Foundation Ireland
This work was supported through the Science Foundation Ireland research centres program, (SFI 12/RC/2302)