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Detailed study of DFIG-based wind turbines to overcome the most severe grid faults
dc.contributor.author | Rolán Blanco, Alejandro | |
dc.contributor.author | Pedra Durán, Joaquín | |
dc.contributor.author | Córcoles López, Felipe | |
dc.date.accessioned | 2015-09-23T11:02:03Z | |
dc.date.available | 2015-09-23T11:02:03Z | |
dc.date.issued | 2014-11 | |
dc.identifier.citation | ROLÁN, Alejandro; PEDRA, Joaquín; CÓRCOLES, Felipe. Detailed study of DFIG-based wind turbines to overcome the most severe grid faults. International Journal of Electrical Power & Energy Systems, 2014, vol. 62, p. 868-878. | ca_CA |
dc.identifier.uri | http://hdl.handle.net/10234/133885 | |
dc.description.abstract | This paper studies the effects of voltage sags caused by faults on doubly-fed induction generators to overcome grid faults. A wide range of sag duration and depth values is considered. It is observed that sag duration influence is periodical. Sag effects depend on duration and depth and on the fault-clearing process as well. Two approaches of the model are compared: the most accurate approach, discrete sag, considers that the fault is cleared in the successive natural fault-current zeros of affected phases, leading to a voltage recovery in several steps; the least accurate approach, abrupt sag, considers that the fault is cleared instantaneously in all affected phases, leading to a one-step voltage recovery. Comparison between both sag models reveals that the fault-clearing process smoothes sag effects. The study assumes that the rotor-side converter can keep constant the transformed rotor current in the synchronous reference frame, thus providing insights into wind turbine fault ride-through capability. The voltage limit of the rotor-side converter is considered to show the situations where the rotor current can be controlled. Finally, a table and a 3D figure summarizing the effects of the most severe grid faults on the rotor-side converter to overcome the most severe faults are provided. | ca_CA |
dc.format.extent | 11 p. | ca_CA |
dc.format.mimetype | application/pdf | ca_CA |
dc.language.iso | eng | ca_CA |
dc.publisher | Elsevier | ca_CA |
dc.relation.isPartOf | International Journal of Electrical Power & Energy Systems Volume 62, November 2014 | ca_CA |
dc.relation.hasVersion | http://www.sciencedirect.com/science/article/pii/S0142061514003020 | ca_CA |
dc.rights | Copyright © 2014 Elsevier Ltd. All rights reserved. | ca_CA |
dc.rights | CC0 1.0 Universal | * |
dc.rights.uri | http://creativecommons.org/publicdomain/zero/1.0/ | * |
dc.subject | Doubly-fed induction generator (DFIG) | ca_CA |
dc.subject | Fault clearing | ca_CA |
dc.subject | Fault ride-through capability | ca_CA |
dc.subject | Rotor-side converter | ca_CA |
dc.subject | Symmetrical voltage sag | ca_CA |
dc.subject | Unsymmetrical voltage sag | ca_CA |
dc.title | Detailed study of DFIG-based wind turbines to overcome the most severe grid faults | ca_CA |
dc.type | info:eu-repo/semantics/article | ca_CA |
dc.identifier.doi | http://dx.doi.org/10.1016/j.ijepes.2014.05.031 | |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | ca_CA |
dc.edition | Postprint | ca_CA |
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