Doubly-fed induction generator control via integral high order sliding modes.

Abstract

A robust nonlinear controller for a doubly-fed induction generator via high order sliding modes with integral sliding modes is proposed. The model presented in this work takes into account the interconnections between induction generator and other elements of the electric power system. The controller presented is able to achieve the stator active power output and power factor regulation, without needing an extra control loop for the machine currents. The control scheme does not need an observer, depends on the terminal voltage and currents which can be measured directly. A comprehensive closed-loop stability analysis is developed. The proposed controller was tested through simulations, in spite of perturbations, its effectiveness is shown.