TitleNonlinear model predictive control of a point absorber wave energy converter
Publication TypeJournal Article
Year of Publication2013
AuthorsRichter M, Magana ME, Sawodny O, Brekken TKA
JournalIEEE Transactions on Sustainable Energy
ISBN Number19493029

This paper presents the application of nonlinear model predictive control (NMPC) to a point absorber wave energy converter (WEC). Model predictive control (MPC) is generally a promising approach for WECs, since system constraints and actuator limits can be taken into account. Moreover, it provides a framework for defining optimal energy capture and it can benefit from predictions. Due to possible nonlinear effects, such as the mooring forces, an NMPC is proposed in this paper, whose performance is compared to that of a linear MPC. Both controllers are supposed to control a nonlinear point absorber model. Computer simulations show that the proposed NMPC is able to optimize the energy capture while satisfying system limits. 2010-2012 IEEE.