Detection of transiently chaotic swings in power systems using real-time phasor measurements

Journal Article · Mon Aug 01 00:00:00 EDT 1994 · IEEE Transactions on Power Systems (Institute of Electrical and Electronics Engineers); (United States)

OSTI ID:6843908

Liu, C W; Thorp, J S; Thomas, R J; Chiang, H D ^[1]; Lu, J ^[2]

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1. Cornell Univ., Ithaca, NY (United States)
2. ORA Corp., Ithaca, NY (United States)

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, [lambda][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 [lambda][sup 1] can be used as an on-line stability index to predict multi-swing transient instability.

• OSTI ID: 6843908
• Journal Information: IEEE Transactions on Power Systems (Institute of Electrical and Electronics Engineers); (United States), Vol. 9:3; ISSN 0885-8950
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
POWER SYSTEMS
ELECTRICAL TRANSIENTS
STABILIZATION
CAPACITY
INTERCONNECTED POWER SYSTEMS
ENERGY SYSTEMS
TRANSIENTS
VOLTAGE DROP
240100* - Power Systems- (1990-)