Power Electronics Converters for Wind Turbine - An Analytical study

Abstract

The steady growth of installed wind has pushed the research and development of power converters towards full scale power conversion, lowered cost per kW, and increased power density and the need for higher reliability. Converters used today are power electronic devices, and as technology develops and the cost drops, the importance of power electronic devices in wind turbine systems increases rapidly. In this research, power converter technologies are reviewed and applying to wind turbines with focus on two/multi-level (VSC), connected to a (DFIG). Based on the analyses a comparison was made for the two/multi-level VSC with PSIM software, that are: the output voltage and current to be less distorted and THD is a lower, when the number of level is increase.