Time-varying contingency screening for dynamic security assessment using intelligent-systems techniques.

A time-frequency-based approach for contingency severity ranking and rapid stability assessment is described. The aim is to classify correctly all single or multiple contingencies that may result in loss of voltage or frequency stability in the first 20 s following the last disturbing action. We sta...

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Bibliographic Details
Published in:	IEEE Transactions on power systems 16, 3 (2001).
Main Author:	Kamwa, I.
Format:	Article
Language:	English
Subjects:	67-bus fictitious system. 783-bus system. Hydro-Quebec operations planning department. Contingency severity ranking. Dynamic security assessment. Frequency stability. Frequency-domain features. Fuzzy logic. Grid areas. Intelligent-systems techniques. Loss of voltage. Multiple contingencies. Neural networks. On-load tap-changers. Peak spectral density. Phasor measurement units. Protection systems. Rapid stability assessment. Short-time Fourier transform. Single contingencies. Strategic monitoring buses. Time-domain simulations. Time-frequency-based approach. Time-varying contingency screening. Time-varying stability indicators.