A short survey of methods for voltage instability detection

• Published in: 2011 IEEE Power and Energy Society General Meeting pp. 1 - 8
• Main Authors: Glavic, M., Van Cutsem, T.
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01.07.2011
• Subjects: emergency control; Generators; Impedance measurement; instability detection; long-term dynamics; Monitoring; observability; Phasor measurement units; Reactive power; Real time systems; state estimation; synchronized phasor measurements; voltage instability; Voltage measurement; wide-area monitoring
• ISBN: 9781457710001; 1457710005
• ISSN: 1932-5517
• DOI: 10.1109/PES.2011.6039311

This paper shortly surveys existing and proposed methods for voltage instability detection. The emphasis is on methods relying on real-time measurements as well as on long-term voltage instability. Methods are classified according to the required measurement configuration: local vs. wide-area, standard SCADA-type vs. synchronized phasor measurements, etc. In the various categories, some of the features are summarized, and what appears to the authors as advantages or limitations is shortly discussed. An important feature is the ability to anticipate instability. Some tracks for further work on the subject are also outlined.