Abstract

This paper presents a nonlinear control method for maximum power point tracking (MPPT) of doubly fed induction generator-based wind energy conversation systems. The proposed control structure is wind speed sensorless and independent from turbine characteristics and parameters such as optimal power-speed curve and optimum tip-speed-ratio. The presented MPPT scheme is designed based on adaptive backstepping control method and shown to be robust and stable against parametric uncertainties and wind speed disturbances. The validity, effectiveness and robustness of the proposed MPPT control method is demonstrated through simulation studies in the MATLAB® software environment.

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