ELECTROMECHANICAL AND AERODYNAMIC SIMULATION OF WIND TURBINES

The aim of this book is to provide insight into the development of an integrated modeling method for wind turbines using various software packages. A Wind Turbine (WT) can be regarded as a Wind Energy Conversion System (WECS) consisting of electrical, mechanical, aerodynamic, power electronic, and control components. Thus a full-scale model of a WT system should incorporate various phenomena such as electrical, mechanical, and aerodynamic effects, especially when the WT is connected to the grid. In this book, after a review of basic WT concepts and software tools, a simulation structure is proposed for studying WTs. It integrates the mechanical and electrical components of a WECS by utilizing commonly used software tools. Based on the simulation structure, a model for a three-bladed WT with a doubly-fed induction generator is developed that is used to investigate the impact of voltage sag on the wind turbine tower vibration. A similar simulation structure is used to model a two-bladed WT with an induction generator. The model is utilized to study the impact of the aeroelastic phenomena tower shadow and yaw error on the power quality of wind power systems.