Detection of Transiently Chaotic Swings in Power Systems using Real-Time Phasor Measurements
Journal
IEEE Transactions on Power Systems
Journal Volume
9
Journal Issue
3
Pages
1285-1292
Date Issued
1994
Author(s)
Abstract
In this paper, the concepts of transiently chaotic swings and windowed Lyapunov exponents in power system dynamics are described. An efficient computer method to detect a transiently chaotic swing from a set of real-time phasor measurements is presented. The method estimates the largest windowed Lyapunov exponent, /spl lambda//spl circ//sub [N/spl Delta/T]//sup 1/ as a detection index. In simulation results, it is shown that the proposed method has the potential to detect a transiently chaotic swing and the estimated /spl lambda//spl circ//sub [N/spl Delta/T]//sup 1/ can be used as an online stability index to predict multi-swing transient instability.>
Type
journal article