Model Predictive Control Strategy for Magnetic Gear Wave Energy Conversion System Considering Field Weakening Effect

In order to improve the power capture efficiency of Wave Energy Converter (WEC) while satisfying various constraints of the system during operation, a model predictive control (MPC) strategy for magnetic gear (MG) wave power generation system considering field weakening effects is proposed in this paper. In addition, this paper addresses the problem of over-modulation of converter output voltage caused by excessive wave excitation force by introducing field weakening control into the optimization algorithm. Simulation results show that the proposed scheme can prevent the converter from being in over-modulation operation and raise the wave energy capture efficiency while meeting a series of constraints of the system.