Comparative study between PI, RST and sliding mode controllers of a DFIG supplied by an AC-AC converter for wind energy conversion system

• Main Authors: Ahmed Bourouina, Abdelkader Chaker, Zinelaabidine Boudjema, Abdelkader Djahbar
• Format: Article
• Language: English
• Published: UT Press Publishing House 2015-12-01
• Series: Carpathian Journal of Electronic and Computer Engineering
• Subjects: doubly fed induction motor (DFIM); power inverter; speed control; second order sliding mode
• Online Access: http://cjece.ubm.ro/vol/8-2015/n2/1509.07-8202.pdf

This paper deals with a variable speed device to produce electrical energy on a power network, based on a doubly-fed induction generator (DFIG) supplied by a direct matrix converter used in wind energy conversion systems. In the first place, we carried out briefly a study of modelling on the whole system. In order to control the power flowing between the stator of the DFIG and the power network, a control law is synthesized using three types of controllers: PI, RST and sliding mode controllers. Their respective performances are compared in terms of power reference tracking, response to sudden speed variations, sensitivity to perturbations and robustness against machine parameters variations.