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An integrated autonomous protection system against voltage instability based on Load Tap Changers
Vournas, Costas; Lambrou, C.; Glavic, Mevludin et al.
2010In Proceedings of the 2010 IREP Symposium- Bulk Power System Dynamics and Control – VIII
Peer reviewed
 

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Abstract :
[en] In this paper we propose a local, completely autonomous protection system against voltage instability that can be readily integrated in the controller of each bulk power delivery LTC transformer. The protection system will identify an imminent voltage instability and will subsequently apply the necessary corrective measures to restore stable operation by properly adjusting the distribution voltage setpoint of the LTC. Application of this system on a 52-bus test system showed excellent performance for two unstable cases. For reasons of comparison, the indirect load curtailment proposed in a severe instability case is compared with direct load shedding schemes based on the local detection of instability, as well as on a global detection of instability assuming wide area measurements.
Disciplines :
Electrical & electronics engineering
Author, co-author :
Vournas, Costas
Lambrou, C.
Glavic, Mevludin ;  Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Smart grids
Van Cutsem, Thierry  ;  Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Systèmes et modélisation
Language :
English
Title :
An integrated autonomous protection system against voltage instability based on Load Tap Changers
Publication date :
August 2010
Event name :
2010 IREP Symposium- Bulk Power System Dynamics and Control – VIII
Event organizer :
COPPE/UFRJ
Event place :
Buzios, RJ, Brazil
Event date :
August 1-6, 2010
Audience :
International
Main work title :
Proceedings of the 2010 IREP Symposium- Bulk Power System Dynamics and Control – VIII
Peer reviewed :
Peer reviewed
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
Available on ORBi :
since 08 July 2010

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