Nonlinear Mppt Control of Squirrel Cage Induction Generator-wind Turbine
نویسندگان
چکیده
This paper presents a nonlinear control method to track the maximum power point of wind turbine equipped with Squirrel Cage Induction Generator (SCIG). Since the mechanical power of wind turbine is function of its shaft speed at a given wind velocity, the proposed controller provides the desired voltage at the output of Voltage Source Converter (VSC) so as to control the generator speed and then extracting maximum power from wind. The controllers exploit the backstepping scheme to calculate the required converter’s control to eliminate the instantaneous errors of mechanical speed and flux. The proposed control laws are derived from the Lyapunov approach which is well suited for this nonlinear system. Finally, the simulation results verify the stability and effectiveness of the control strategy proposed.
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