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Stabilization control of multi‐machine power systems by adaptive power system stabilizer using frequency domain analysis
Author(s) -
Senjyu Tomonobu,
Yamashita Takahiro,
Uezato Katsumi
Publication year - 2002
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/eej.10129
Subject(s) - control theory (sociology) , frequency domain , electric power system , transient (computer programming) , controller (irrigation) , low frequency oscillation , generator (circuit theory) , time domain , engineering , control engineering , automatic frequency control , power (physics) , computer science , control (management) , electrical engineering , physics , quantum mechanics , artificial intelligence , agronomy , computer vision , biology , operating system
To improve electric power system transient stability, synchronous generators are generally equipped with controllers such as AVR, PSS, and GOV. Fixed parameter controllers degrade control performance, since various oscillation modes occur depending on system conditions. This paper presents an adaptive power system stabilizer (PSS) using frequency domain analysis for improving the transient stability of a multimachine system. In the proposed method, first, the frequency components of the generator swings are detected by the FFT. The conventional PSS parameters are tuned online by a fuzzy controller and frequency domain analysis. We verify the proposed adaptive PSS using frequency domain analysis, which can damp the generator swings effectively. © 2002 Wiley Periodicals, Inc. Electr Eng Jpn, 142(2): 10–20, 2003; Published online in Wiley InterScience ( www.interscience.wiley.com ). DOI 10.1002/eej.10129