Energy-Based Combined Nonlinear Observer and Voltage Controller for a PMSG Using Fuzzy Supervisor High Order Sliding Mode in a Marine Current Power System

A permanent magnet synchronous generator (PMSG) in s grid-connected tidal energy conversion system presents numerous advantages such as high-power density and ease of maintenance. However, the nonlinear properties parametric uncertainties make controller design more than a simple challenge. Within this paper we present new combined passivity-based voltage control (PBVC) with observer. The PBVC is used to desired dynamics system, while observer serves reconstruct measured signals. high order sliding-mode based fuzzy supervisory approach selected dynamics. This addresses following two main parts: controlling PMSG guarantee maximum power extraction integrate into grid-side converter (GSC), for proposed. second task regulate generated reactive DC-link their references under any disturbances related machine-side (MSC). Furthermore, robustness against parameter changes was taken consideration. developed tested variations compared benchmark methods. Numerical simulations are performed MATLAB/Simulink which clearly demonstrates proposed technique over Moreover, also validated using processor loop (PIL) experiment Texas Instruments (TI) Launchpad.