Vol. 62 | no. 3 | July - September 2014 Article 12

Maximum Power Point Tracking based on Backstepping Control of Wind Turbine
(full text in English)

Mourad LOUCIF, Abdelmadjid BOUMEDIENE, Abdelkader MECHERNENE
In this paper, a nonlinear backstepping controller is proposed to maximize the power extraction of a variable speed wind turbine. This algorithm works in the partial load region that has been used to control the wind turbine speed, so that it reaches the desired value which corresponds to the maximum power point. Complete simulation of the MPPT system validates the efficiency of the proposed backstepping control law. Compared to the conventional PI controller usually used, the backstepping control allows to exhibit excellent transient response during large range of operating conditions.
Keywords: backstepping controller, PI, variable speed wind turbine, MPPT, Lyapunov function