Grid Connected Doubly Fed Induction Generator Based Wind Turbine under LVRT

Subramanian, Chandrasekaran (2014) Grid Connected Doubly Fed Induction Generator Based Wind Turbine under LVRT, [Dissertation thesis], Alma Mater Studiorum Università di Bologna. Dottorato di ricerca in Ingegneria elettrotecnica, 26 Ciclo. DOI 10.6092/unibo/amsdottorato/6243.
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This project concentrates on the Low Voltage Ride Through (LVRT) capability of Doubly Fed Induction Generator (DFIG) wind turbine. The main attention in the project is, therefore, drawn to the control of the DFIG wind turbine and of its power converter and to the ability to protect itself without disconnection during grid faults. It provides also an overview on the interaction between variable speed DFIG wind turbines and the power system subjected to disturbances, such as short circuit faults. The dynamic model of DFIG wind turbine includes models for both mechanical components as well as for all electrical components, controllers and for the protection device of DFIG necessary during grid faults. The viewpoint of this project is to carry out different simulations to provide insight and understanding of the grid fault impact on both DFIG wind turbines and on the power system itself. The dynamic behavior of DFIG wind turbines during grid faults is simulated and assessed by using a transmission power system generic model developed and delivered by Transmission System Operator in the power system simulation toolbox Digsilent, Matlab/Simulink and PLECS.

Tipologia del documento
Tesi di dottorato
Subramanian, Chandrasekaran
Dottorato di ricerca
Scuola di dottorato
Ingegneria industriale
Settore disciplinare
Settore concorsuale
Parole chiave
Doubly fed induction generators (DFIG); Wind turbine control; Power converter control; Grid faults, LVRT control.
Data di discussione
10 Marzo 2014

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