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ETUDE ET COMMANDE DE GENERATRICES ASYNCHRONES POUR L'UTILISATION DE L'ENERGIE EOLIENNE
- Machine asynchrone à cage autonome
- Machine asynchrone à double alimentation reliée au réseau

Abstract : Many scientific competences are necessary to study wind energy conversion systems (meteorology for wind's behaviour study, mechanics and chemistry for constraints and composition of the materials used in the turbine, electrical engineering for electromechanical conversion and transformation of the electrical power). The study presented in this document concerns the electrotechnical part of this energy conversion system.
After a short recall of the concepts and equations governing wind energy conversion systems, this document makes a state of art of the machines and converters used in wind turbines.
A first study shows the performances and the limits of the squirrel cage self-excited induction generator. It uses an original and simple modelling method where the machine's model is completely independent of that of the load and the excitation capacitors. Balanced and unbalanced modes are studied in simulation and are experimentally validated.
The second study concerns the conception of a physical wind turbine simulator. It is intended to drive the studied generators by producing experimentally a torque that would be present on the shaft of a real turbine. This is done thanks to a D.C. machine controlled in order to produce torque variations given by a wind turbine model.
The third part of this document is devoted to electrical energy production on the grid by using the doubly fed induction generator. The conception of the machine permits to control the power exchanged between the stator and the grid by modifying rotor voltages via a bidirectional converter. To achieve this, a vector control of the generator is done with active and reactive stator powers as control variables. This control is elaborated and tested by synthesizing three different linear controllers : Proportional Integral, RST based on the poles placement theory and Linear Quadratic Gaussian based on the minimization of a quadratic criterion. The performances of the system are analyzed and compared in terms of reference tracking, robustness, and disturbances rejection.
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https://tel.archives-ouvertes.fr/tel-00011383
Contributor : Frédéric Poitiers <>
Submitted on : Saturday, January 14, 2006 - 2:49:08 PM
Last modification on : Wednesday, February 13, 2019 - 3:20:03 PM
Long-term archiving on: : Tuesday, April 6, 2010 - 4:38:47 PM

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Frédéric Poitiers. ETUDE ET COMMANDE DE GENERATRICES ASYNCHRONES POUR L'UTILISATION DE L'ENERGIE EOLIENNE
- Machine asynchrone à cage autonome
- Machine asynchrone à double alimentation reliée au réseau. Energie électrique. Université de Nantes, 2003. Français. ⟨tel-00011383⟩

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