New control strategy for inductin generator-wind turbine connected grid

This paper presents a nonlinear control of 900-kW wind power, to track the maximum power point (MPPT,) and control Power Factor Correction (PFC) of wind farm using three Squirrel Cage Induction Generator (SCIG) driven by 300-kW wind turbines. The wind turbine delivers an active and reactive power to grid via common DC-bus and Voltage Source Converter (VSC), the proposed control strategy provides perfect tracking performances of the DC-bus voltage and the active and reactive powers to their references trajectories. The proposed control laws are derived from the Lyapunov approach using backstepping controllers. Finally, the simulation results verify the stability and effectiveness of the control strategy.