A New Model for PMSG-Based Wind Turbine With Yaw Control

In order to fully study small wind turbines (WTs), a comprehensive model that considers all mechanical and electrical aspects is necessary. The permanent magnet synchronous generator (PMSG)-based WT is one of the most common types of WTs that uses a full scale converter with a variable speed WT. In this paper, a new model is developed for a PMSG-based WT with yaw control scheme. The WT generator is connected to a grid by two back-to-back voltage source IGBT converters and a dc capacitor set between them. A precise mechanical model is necessary to simulate yaw control. The yaw control is used as a mechanical mechanism to adjust yaw error and protect small horizontal axis wind turbines (HAWT) against over speed and excess power. TurbSim and FAST are used to model a wind profile and the mechanical parts of the WT. Also, the WT generator and electrical controllers are modeled by Simulink. Field oriented control (FOC) method is developed on the voltage source converters (VSCs). Simulation results show the performance of the mechanical and electrical controllers in different conditions.