A Comparative Study Between Robust Control Sliding Mode and Backstepping of a DFIG Integrated to Wind Power System

Abstract

This paper present the modeling and robust control nonlinear of active and reactive power by the use the technique sliding mode and backstepping a Double-Fed Induction Generator (DFIG) integrated into a wind energy system, The power transfer between the stator and the network is carried out by acting on the rotor via a bidirectional signal converter. The techniquesof control (Sliding Mode) finds its strongest justification to the problem of use of a robust non-linear control law for the model uncertainties. The objective is to apply this controls to command independently the active and the reactive power generated by the asynchronous machine which is decoupled by the orientation of the flux. Simulations results are compared and discussed for control (SMC, backstepping control) based on DFIG combine with wind system, and robustness of controls are tested by parametric variations of the DFIG.