Contribution à l’optimisation de la commande prédictive des convertisseurs statiques intégrés dans les chaines de conversion d’énergie éolienne
No Thumbnail Available
Date
2017
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Université Larbi Ben M'hidi
Abstract
In order to improved the quality of electrical power transmitted between the wind energy
conversion systems and the electric grid we present in this PhD theses a study and
implementation of a new type of control technologies to control the power converters
(back to back 2 levels, three levels, direct matrix converter and indirect matrix converter).
The finite set model predictive control based on the model of the system and cost function
represents the desired response is used in order to assure the high level of the active and
reactive power transmission between the rotor of the doubly fed induction generator and
the electrical grid. The main advantage of the FS-MPC method lies in its simplicity of
implementation. In addition, the constraints are taken into account thanks to its flexibility
which considerably reduces the overall cost of the drive system.
In second part, we applied a new kind of wind farm based on the indirect matrix
converter with six legs for purpose to control two DFIGs in the same time. The connection
of this wind farm to electrical power is depending on several operating modes of the wind
generator. Each mode of them, the DFIG and the power converter take a specified
reference power. The supervisory algorithm is distribute the power reference with the
proportional way, the principal choice of this algorithm is disturbed the reference power on
each DFIGs and each power converters tacking in to count the maximal reactive power
Description
Keywords
Wind energy, Finite set model predictive control, Power converters, DFIG, TSSL- MC