Título:
|
Rotor voltage dynamics in the doubly fed induction generator during grid faults
|
Autor/a:
|
Lima, Francisco F. A.; Luna Alloza, Álvaro; Rodríguez Cortés, Pedro; Watanabe, Edson H.; Blaabjerg, F.
|
Otros autores:
|
Universitat Politècnica de Catalunya. Departament d'Enginyeria Elèctrica; Universitat Politècnica de Catalunya. SEER - Sistemes Elèctrics d'Energia Renovable |
Abstract:
|
2010 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works |
Abstract:
|
This paper presents a new control strategy for the rotor-side converter (RSC) of wind turbines (WTs) based on doubly fed induction generators (DFIG) that intends to improve its
low-voltage ride through capability. The main objective of this work is to design an algorithm that would enable the system to
control the initial overcurrents that appear in the generator during voltage sags, which can damage the RSC, without tripping it.
As a difference with classical solutions, based on the installation of crowbar circuits, this operation mode permits to keep the inverter
connected to the generator, something that would permit the injection
of power to the grid during the fault, as the new grid codes
demand. A theoretical study of the dynamical behavior of the rotor
voltage is also developed, in order to show that the voltage at the
rotor terminals required for the control strategy implementation
remains under controllable limits. In order to validate the proposed
control system simulation, results have been collected using
PSCAD/EMTDC and experimental tests have been carried out in
a scaled prototype. |
Abstract:
|
Peer Reviewed |
Materia(s):
|
-Àrees temàtiques de la UPC::Enginyeria electrònica -Electric generators -Power systems -Energia eòlica -Control electrònic -Generadors elèctrics |
Derechos:
|
|
Tipo de documento:
|
Artículo - Versión publicada Artículo |
Compartir:
|
|