Direct Power Control of a Surface-Mounted Permanent Magnet Synchronous Generator Wind Turbine for Offshore Applications

This paper proposes a direct power control scheme for an offshore wind turbine-driven surface-mounted permanent magnet synchronous generator with full back-to-back converter situated onshore to decentralize the weight of turbine. The proposed model is designed in stationary reference frame and does not require phase-locked loop as opposed traditional vector current method. Simple feed-forward feedback loops are used extract maximum available power, maintain constant voltage at coupling DC link, ensure injection into electric network unity factor. Simulation results carried out MATLAB/SIMULINK show that has fast transient response steady-state performance consistent model. Furthermore, eigenvalue analysis demonstrate method’s robust variations different system parasitic elements, even under both stiff weak conditions. These also indicate can operate effectively when located close load center, while turbine proximity offshore. be suitable multiple specific applications it potential reduce overall weight, volume, cost infrastructure.