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Stabilization control for multimachine system using decentralized H ∞ excitation controller realizing terminal voltage control and damping control
Author(s) -
Senjyu Tomonobu,
Morishima Yoshiteru,
Yamashita Takahiro,
Uezato Katsumi,
Fujita Hideki
Publication year - 2004
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.10254
Subject(s) - control theory (sociology) , electric power system , controller (irrigation) , weighting , engineering , control engineering , control system , decentralised system , terminal (telecommunication) , voltage regulator , coprime integers , power (physics) , voltage , computer science , control (management) , physics , electrical engineering , quantum mechanics , artificial intelligence , acoustics , agronomy , biology , telecommunications , algorithm
In this paper, to achieve both damping of power system oscillation and terminal voltage control simultaneously on a multimachine power system, we propose a decentralized H ∞ excitation controller. In the proposed method, H ∞ control via the Normalized Coprime Factorization approach is used to achieve the proposed design idea. By the Normalized Coprime Factorization approach, the weighting function in H ∞ control design is simplified, and output feedback controllers that take into account the realities and constraints of the power systems are designed. The proposed controller is subjected to model reduction of H ∞ controllers, and is transformed to a discrete system to perform digital control by computer systems in consideration of application to a real system. We verify that the proposed excitation controller can achieve both damping of power system oscillation and terminal voltage control by computer simulations of a multimachine power system. © 2004 Wiley Periodicals, Inc. Electr Eng Jpn, 147(1): 33–41, 2004; Published online in Wiley InterScience ( www.interscience.wiley.com ). DOI 10.1002/eej.10254