Advanced Power Conditioning System for the Grid Integration of Variable Speed Wind Turbine Generators

MOLINA, MARCELO GUSTAVO; DOS SANTOS JR, EUZELI CIPRIANO; PACAS, JOSÉ MARIO

Atlanta, Georgia

Congreso; IEEE Energy Conversion Congress and Exposition 2010; 2010

IEEE Power Electronics Society and Industry Applications Society

The increasing use of distributed generation (DG), particularly based on wind power systems, requires new strategies for the operation and management of the power distribution system. Under this scenario, the power electronic technology plays an important role in the integration of DG into the electrical grid since it is subject to requirements related not only to the renewable energy source itself but also to its effects on the power system operation, especially with high installed capacity. This paper proposes an improved structure of power conditioning system (PCS) for the effective grid integration of Wind Turbine Generators (WTGs). The topology employed consists of a three-level Z-source cascaded inverter and allows the flexible, efficient and reliable generation of high quality electric power from the WTG. A full detailed model is described and its control scheme is designed. Validation of models and control schemes is performed using the MATLAB/Simulink environment.