Discrete-time block control for a doubly fed induction generator coupled to a wind turbine

Abstract

This paper proposes a control scheme based on the block control technique using sliding modes, for a doubly fed induction generator connected to an infinity bus. This control scheme is compared with a linear control using PIs. Simulation results in PSCAD/EMTDC are included to illustrate the applicability of the scheme. A comparison between the PI controller and the proposed block controller is presented, from which, it is verified that our approach is faster to reach the speed reference.