Modeling and Control of a Tidal Turbine Based on a PMSG Generator

In this work, we have studied a tidal energy conversion system using a synchronous generator with permanent magnets and connected to grid. To achieve the objectives, a Park modeling of the machine was carried out with an oriented flux vector control, which allowed the machine to operate at variable speed. For the control of the grid side converter, we used hysteresis current control loops. To guarantee a constant DC bus voltage level, a method based on the calculation of the TSR error equipped with a PID regulator was used. The results of the various simulations of the entire conversion chain, carried out under the MATLAB/Simulink environment, made it possible to evaluate the performance of the proposed control algorithms.