Article (Scientific journals)
Wide-area Detection of Voltage Instability from Synchronized Phasor Measurements. Part II: Simulation results
Glavic, Mevludin; Van Cutsem, Thierry
2009In IEEE Transactions on Power Systems, 24 (3), p. 1417 - 1425
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Keywords :
Long-term voltage stability; instability detection; wide-area monitoring; phasor measurement units; sensitivity analysis
Abstract :
[en] This two-part paper deals with the early detection of an impending voltage instability from the system states provided by synchronized phasor measurements. Recognizing that voltage instability detection requires assessing a multidimensional system, the method fits a set of algebraic equations to the sampled states, and performs an efficient sensitivity in order to identify when a combination of load powers has passed through a maximum. This second part of the paper presents simulation results obtained from detailed time-domain simulation of the Nordic32 test system, without and with measurement noise, respectively. Several practical improvements are described such as anticipation of overexcitation limiter activation, and use of a moving average filter. Robustness to load behaviour, non updated topology and unobservability is also shown. Finally a comparison with Thevenin impedance matching criterion is provided.
Disciplines :
Electrical & electronics engineering
Author, co-author :
Glavic, Mevludin 
Van Cutsem, Thierry  ;  Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Systèmes et modélisation
Language :
English
Title :
Wide-area Detection of Voltage Instability from Synchronized Phasor Measurements. Part II: Simulation results
Publication date :
August 2009
Journal title :
IEEE Transactions on Power Systems
ISSN :
0885-8950
Publisher :
IEEE, Piscataway, NJ, United States
Volume :
24
Issue :
3
Pages :
1417 - 1425
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
Available on ORBi :
since 06 March 2009

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