KIEE - The Transactions of the Korean Institute of Electrical Engineers

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The Transactions of the Korean Institute of Electrical Engineers

The Transactions of the Korean Institute of Electrical Engineers

ISO Journal TitleTrans. Korean. Inst. Elect. Eng.

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Title	Initial Results of Low Frequency Oscillation Analysis based on Synchrophasor in KEPCO System
Authors	심관식(Shim, Kwan-Shik) ; 김상태(Kim, Sang-Tae) ; 남해곤(Nam, Hae-Kon) ; 최준호(Choi, Joon-Ho)
DOI	https://doi.org/10.5370/KIEE.2014.63.1.001
Page	pp.1-9
ISSN	1975-8359
Keywords	Low frequency oscillation ; Mode ; parameter estimation ; Residue ; Synchrophasor ; WAMS
Abstract	The parameters of electromechanical modes offer considerable insight into the dynamic stability properties of a power system. This paper describes an initial result for extraction of dynamic parameters from synchrophasor measurements collected on the KEPCO system. Dominant modes of the system are estimated by oscillation detecting program in K-WAMS. The critical wide-area modes of KEPCO system have frequencies in the 0.4 to 0.7Hz range. And the local mode causing the low frequency oscillation of generators located on the west coast area has in the frequency 0.97 and 1.25 Hz, respectively. This results can serve as a reference in the future for reliable system operation in KEPCO system.

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