Article (Scientific journals)
A unified management of congestions due to voltage instability and thermal overload
Capitanescu, Florin; Van Cutsem, Thierry
2007In Electric Power Systems Research, 77 (10), p. 1274-1283
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Keywords :
voltage stability; thermal overload; dynamic security analysis; congestion management; generation rescheduling; load curtailment
Abstract :
[en] This paper proposes two approaches for a unified management of congestions due to voltage instability and thermal overload in a deregulated environment. Both techniques aim to remove, in some optimal manner, voltage and thermal congestions stemming from base case or post-contingency states, by a simultaneous handling of operating and security constraints with respect to several contingencies. The objective of the first approach is to adjust the market-based power injections (generator output and possibly load consumption) at the least cost while the second one aims at curtailing power transactions in a transparent and non-discriminatory way. These techniques rely on sensitivities which pinpoint the best remedial actions against congestions owing to voltage instability and thermal overload. Numerical results with both approaches are provided on a realistic 80-bus system model. (c) 2006 Elsevier B.V. All rights reserved.
Disciplines :
Electrical & electronics engineering
Author, co-author :
Capitanescu, Florin 
Van Cutsem, Thierry  ;  Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Systèmes et modélisation
Language :
English
Title :
A unified management of congestions due to voltage instability and thermal overload
Publication date :
August 2007
Journal title :
Electric Power Systems Research
ISSN :
0378-7796
eISSN :
1873-2046
Publisher :
Elsevier Science Sa, Lausanne, Switzerland
Volume :
77
Issue :
10
Pages :
1274-1283
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique
Available on ORBi :
since 27 December 2008

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