Tesis doctoral de AdriÁ Junyent Ferré
The present phd thesis analyzes the modelling and control of the two main topologies of large scale variable speed wind turbines, the doubly fed induction generator and the permanent magnet synchronous generator wind turbines, to operate under different types of voltage sags. The first part of the thesis deals with the modelling of the wind turbine from the mechanics to the different types of generators and the power converter. The second part deals with the control of the wind turbine. First, three different control schemes of the doubly fed induction machine are analyzed, starting with the most basic one, the conventional vector control meant for balanced operation which is simulated and compared to experimental measurements from a voltage sag test, and then moving to the dual synchronous reference frame and the stationary reference frame control, two different schemes that allow the operation of the machine under unbalanced voltage sags. Then, different reference calculation methods for the operation of grid connected voltage source converters under grid unbalances are analyzed and tested on a experimental platform. Finally, the vector control scheme of the permanent magnet synchronous generator and a ride-through strategy for this type of turbine for balanced voltage sags is presented and tested on a small scale experimental platform.
Datos académicos de la tesis doctoral «Control of power electronic converters for the operation of wind generation«
- Título de la tesis: Control of power electronic converters for the operation of wind generation
- Autor: AdriÁ Junyent Ferré
- Universidad: Politécnica de catalunya
- Fecha de lectura de la tesis: 15/07/2011
Dirección y tribunal
- Director de la tesis
- Oriol Gomis Bellmunt
- Tribunal
- Presidente del tribunal: tim Green
- montserrat Mata dumenjó (vocal)
- (vocal)
- (vocal)