Comprehensive modeling and analysis of Variable Speed Wind Turbine using Permanent Magnet Synchronous Generator

Various types of converter-inverter topologies have been used in recent times for wind farms. This paper presents some new converter-inverter methods applied in a wind farm consisting of Permanent Magnet Synchronous Generator (PMSG). Conventional 3-level converter-inverter responses have been compared with comparatively newer flying capacitor model and improved Z-source converter models. Simulation results show the effectiveness of the proposed control topology. In order to extract maximum power, and hence regulate the voltage and frequency under varying wind conditions, converter-inverter sets are associated with Maximum Power Point Tracking (MPPT) System. Simulations have been done by using the engineering software PSCAD/EMTDC. Real wind speed data have been considered for this study.