An equivalent of multi-machine power systems and its identification for on-line application to decentralized stabilizers

Journal Article · Mon May 01 00:00:00 EDT 1989 · IEEE Trans. Power Syst.; (United States)

DOI:https://doi.org/10.1109/59.193844· OSTI ID:6012877

Ohtsuka, K; Yokokawa, S; Tanaka, H; Doi, H

An analysis of modal oscillations in multi-machine power systems is presented. On the basis of the analysis, a power system equivalent representing a coherence mode of oscillations appearing in such a multi-machine system is proposed for designing a decentralized control system. The equivalent is represented by an equivalent voltage and an equivalent reactance, which are identified by using measurements on a generator in the multi-machine system under a transient condition. The identification is implemented by a sequential estimator based on the Kalman filter algorithm. Performance of the estimator is verified by using actual data on some example power systems.

• Research Organization: Fuji Electric Corp. Research and Development, Ltd., 1 Fuji, Hino, Tokyo (JP); Kansai Electric Power Co., Ltd., 3-11-20 Nakoji, Amagasaki (JP)
• OSTI ID: 6012877
• Journal Information: IEEE Trans. Power Syst.; (United States), Journal Name: IEEE Trans. Power Syst.; (United States) Vol. 4:2; ISSN ITPSE
• Country of Publication: United States
• Language: English

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