Improved Thévenin equivalent methods for real-time voltage stability assessment

Perez, Angel; Johannsson, Hjortur; Ostergaard, Jacob; Glavic, Mevludin; Van Cutsem, Thierry

doi:10.1109/ENERGYCON.2016.7513971

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Improved Thévenin equivalent methods for real-time voltage stability assessment

Perez, Angel; Johannsson, Hjortur; Ostergaard, Jacob et al.

2016 • In proc. IEEE ENERGYCON Conference

Peer reviewed

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https://hdl.handle.net/2268/195319

DOI
10.1109/ENERGYCON.2016.7513971

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Keywords :

Wide-area monitoring; voltage stability; real-time instability detection; Thévenin equivalent; stability limit; overexcitation limiters; sensitivity analysis

Abstract :

[en] An improved Thévenin equivalent method for real-time voltage stability assessment that uses wide-area information from synchrophasors is proposed. The improvements are a better modeling of the limited synchronous generators, and a processing that anticipates the effect of field current limiters, before the latter are activated. Several study cases using detailed dynamic simulations of the Nordic test system have been used to assess the performance of the proposed improvements. Their effectiveness is analyzed and, based on the results, their possible application in combination with the sensitivity-based voltage stability assessment method is explored.

Disciplines :

Electrical & electronics engineering

Author, co-author :

Perez, Angel

Johannsson, Hjortur

Ostergaard, Jacob

Glavic, Mevludin ; Université de Liège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Systèmes et modélisation : Optimisation discrète

Van Cutsem, Thierry ; Université de Liège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Systèmes et modélisation

Language :

English

Title :

Improved Thévenin equivalent methods for real-time voltage stability assessment

Publication date :

April 2016

Event name :

IEEE International Energy Conference ENERGYCON 2016

Event organizer :

IEEE

Event place :

Leuven, Belgium

Event date :

du 4 au 8 avril 2016

Audience :

International

Main work title :

proc. IEEE ENERGYCON Conference

Publisher :

IEEE

Peer reviewed :

Peer reviewed

Additional URL :

http://ieeexplore.ieee.org/Xplore/guesthome.jsp

Funders :

Danish Council for Strategic Research (SOSPO project)
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]

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Bibliography

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