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Optimization method of P+ ω PSS parameters for stability and robustness enhancement in a multimachine power system
Author(s) -
Yoshimura Kenji,
Uchida Naoyuki
Publication year - 2000
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/(sici)1520-6416(20000415)131:1<19::aid-eej3>3.0.co;2-l
Subject(s) - control theory (sociology) , electric power system , robustness (evolution) , oscillation (cell signaling) , engineering , power factor , power (physics) , weighting , power flow , swing , computer science , physics , voltage , electrical engineering , acoustics , mechanical engineering , biochemistry , chemistry , control (management) , genetics , quantum mechanics , artificial intelligence , biology , gene
Recent steady increase of electric power demand causes power sources to be large and far from cities. Wide area power interchanges lead to larger and more complex power systems. This makes the network susceptible to poor damping power swing oscillations of relatively low frequencies which influence the whole system. This paper describes a newly developed generator's double input signal PSS (P+ ω input PSS) design method. Several power system conditions (power flow and/or power patterns) are considered to satisfy a well‐stabilized power system for each system condition. Major features of this method are: (1) Weighting factor for eigenvalue sensitivity of the oscillation mode is considered when the parameters of the PSS are updated during the optimization process. (2) The new method provides good results for the generator's local and interarea oscillation modes under peak and off‐peak power flow conditions. © 2000 Scripta Technica, Electr Eng Jpn, 131(1): 19–31, 2000