A two-level emergency control scheme against power system voltage instability

Otomega, Bogdan; Glavic, Mevludin; Van Cutsem, Thierry

doi:10.1016/j.conengprac.2013.10.007

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A two-level emergency control scheme against power system voltage instability

Otomega, Bogdan; Glavic, Mevludin; Van Cutsem, Thierry

2014 • In Control Engineering Practice, 30, p. 93-104

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https://hdl.handle.net/2268/157124

DOI
10.1016/j.conengprac.2013.10.007

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NOTICE: this is the author's version of a work that was accepted for publication in Control Engineering Practice. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version will be subsequently published in Control Engineering Practice with the above DOI.

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Keywords :

power systems; voltage instability; emergency control; distributed control; wide-area monitoring; adaptive systems; load shedding; load tap changer

Abstract :

[en] A two-level adaptive control scheme against power system voltage instability is proposed, to deal with emergency conditions by acting on distribution transformers and/or by curtailing some loads. The lower level includes distributed controllers, each acting once the voltage at a monitored transmission bus settles below a threshold value. The upper level benefits from wide-area monitoring and adjusts in real-time the voltage thresholds of the local controllers. Emergency detection is based on the sign of sensitivities. The proposed scheme is robust with respect to communication failures. Its performance is illustrated through detailed simulations of a small but realistic 74-bus test system.

Disciplines :

Electrical & electronics engineering

Author, co-author :

Otomega, Bogdan

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 :

A two-level emergency control scheme against power system voltage instability

Publication date :

September 2014

Journal title :

Control Engineering Practice

ISSN :

0967-0661

Publisher :

Pergamon Press - An Imprint of Elsevier Science

Volume :

Pages :

93-104

Peer reviewed :

Peer Reviewed verified by ORBi

Additional URL :

http://www.sciencedirect.com/science/journal/09670661/30

Funders :

Romanian Ministry of Labour, Family and Social Protection (Agreement POSDRU/89/1.5/S/62557)
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]

Available on ORBi :

since 14 October 2013

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