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	Parameter Selection Method for Power System Stabilizer of a Power Plant based on Hybrid System Modeling
Authors	백승묵(Baek, Seung-Mook)
DOI	https://doi.org/10.5370/KIEE.2014.63.7.883
Page	pp.883-888
ISSN	1975-8359
Keywords	Low-frequency oscillation ; Hybrid system modeling ; Nonlinearity ; Parameter tuning ; Power system stabilizer
Abstract	The paper describes the parameter tuning of power system stabilizer (PSS) for a power plant based on hybrid system modeling. The existing tuning method based on bode plot and root locus is well applied to keep power system stable. However, due to linearization of power system and an assumption that the parameter ratio of the lead-lag compensator in PSS is fixed, the results cannot guarantee the optimal performances to damp out low-frequency oscillation. Therefore, in this paper, hybrid system modeling, which has a DAIS (differential-algebraic-impusive-switched) structure, is applied to conduct nonlinear modeling for power system and find optimal parameter set of the PSS. The performances of the proposed method are carried out by time domain simulation with a single machine connected to infinite bus (SMIB) system.

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