Commande non linéaire de l'éolienne à MADA pour une participation au réglage de la fréquence du réseau

Abstract

Our work is motivated by the desire of governments around the world to fight against global warming by increasing the participation rate of renewable energy sources in the grid. This increase will reach about 20% by 2030 around the world. The goal of our research is to support the willingness of governments by providing a control scheme to encourage strong participation of Wind Energy Conversion Systems (WECS) in power systems. To do this, we first present the different types of controls used for the doubly-fed induction generators (DFIG) based WECS which include vector control and nonlinear control. Following this presentation, non-linear and multi-variable control was selected as most suitable for our study. Thus, a new control scheme based on a nonlinear multivariable controller for the rotorside converter of the wind energy conversion systems has been proposed. In this control schem, in which the DFIG based WECS is connected to a grid in which it participates in primary and secondary frequency regulation while maintaining high performance for voltage control. The originality of the new control scheme is that it allows the WECS to participate in frequency control as in the same manner as a conventional Steam turbine The effectiveness of the method was validated by simulation in SimPowerSystems blockset of Matlab.

Date	4 Jan 2012
Original language	French
Awarding Institution	École de technologie supérieure
Supervisor	Ouassima Akhrif (Supervisor) & Amadou Oury Ba (Co-supervisor)