Abstract
In this paper we present a framework for controls optimization of a flap type wave energy converter (WEC) with a hydraulic power take off (PTO). Results are presented for four different PTO topologies classified based on their ability to provide continuous vs discrete control and oneway vs two-way power flow. These four topologies are used to model realistic PTO configurations where a model predictive controls framework (MPC) is used to improve performance over baseline “slow tuning” method. MPC allows us to conveniently introduce constraints imposed by the PTO and evaluate the impact of those PTO-related constraints on average annual power capture, which can directly be used in the economic assessment of these trade-off options as part of the device development process.