Overlapping decompositions-based robust decentralized tabu search-optimized fixed structure H∞ frequency stabilizer design in interconnected power systems

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dc.contributor.authorNgamroo, Issarachai
dc.date.accessioned2026-08-06T10:06:56Z
dc.date.available2026-08-06T10:06:56Z
dc.date.issued2013-07-17
dc.description.abstractAs interconnected power systems are subjected to load disturbances with changing frequency in the vicinity of the inter-area oscillation mode, the system frequency may severely oscillate. To stabilize frequency oscillation, the dynamic power flow control devices can be exploited. This paper focuses on a new robust decentralized fixed structure H<inf>∞</inf> frequency stabilizer design of power control devices based on overlapping decompositions. The tie-line between two interconnected systems can be treated as the overlapped variable so that the original system can be decomposed into two subsystems. The frequency stabilizer equipped with the power control device can be designed in each subsystem independently. The structure of frequency stabilizer is specified as the 2<sup>nd</sup>-order lead/lag compensator. To augment the system robust stability, the multiplicative uncertainty is employed to represent all unstructured system uncertainties. As a result, the multiplicative stability margin (MSM) can be used to guarantee the system robust stability. The control parameters of frequency stabilizer are optimized by a tabu search, so that the desired damping ratio of the target inter-area mode and the highest MSM are achieved. Two examples of power flow devices, i.e., high-voltage direct current transmission system and superconducting magnetic energy storage, are used to show the high performance and robustness against load disturbances and system parameters variation. © 2013 ICIC International.
dc.identifier.citationInternational Journal of Innovative Computing Information and Control, 9(6), 2597-2618, 2013
dc.identifier.issn13494198
dc.identifier.other2-s2.0-84880063249
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/4958
dc.sourceInternational Journal of Innovative Computing Information and Control
dc.subjectFrequency stabilization
dc.subjectH∞ control
dc.subjectOverlapping decompositions
dc.subjectRobust stability
dc.subjectSystem uncertainties
dc.subjectTabu search
dc.titleOverlapping decompositions-based robust decentralized tabu search-optimized fixed structure H∞ frequency stabilizer design in interconnected power systems
dc.typeArticle

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