Adaptive control of PMSG-based small wind turbines in Region II

Wind turbines are designed to generate electrical energy as efficiently as possible. This paper focuses on control technology of permanent magnet synchronous generator (PMSG)-based small wind turbines (SWT). A new adaptive Control method has been proposed to improve the efficiency of PMSG-based SWT in Region II. The proposed approach is based on model reference adaptive control (MRAC) in which a group rates of adaptation are used for controlling a SWT with uncertainty parameters. The stability of the wind energy conversion system is guaranteed using Lyapunov technique. The controller is tested with simulation studies on a 2 kW wind turbine. The proposed adaptive controller is compared with a existing controller. The results show improved energy efficiency and smooth rotor speed.