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Stabilizing a multimachine system via non‐linear voltage controller with the use of a local control strategy
Author(s) -
Mielczarski W.,
Zajaczkowski A.,
Conlon M. F.,
Roizman O.
Publication year - 1997
Publication title -
optimal control applications and methods
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.458
H-Index - 44
eISSN - 1099-1514
pISSN - 0143-2087
DOI - 10.1002/(sici)1099-1514(199709/10)18:5<341::aid-oca615>3.0.co;2-m
Subject(s) - control theory (sociology) , robustness (evolution) , electric power system , linearization , linear system , feedback linearization , control engineering , generator (circuit theory) , voltage , computer science , engineering , control (management) , power (physics) , nonlinear system , mathematics , biochemistry , chemistry , physics , electrical engineering , quantum mechanics , artificial intelligence , gene , mathematical analysis
A new local control strategy with non‐linear optimal controllers for a multimachine system is presented. Non‐linear Field Voltage Controllers (NFVC) are designed with the use of the feedback linearization approach to adjust generator state variables to external reference signals resulting from optimal power flow calculation [ P i , Q i , V ti ] in the stabilized power system. A non‐linear control law has been derived for the three‐dimensional [δ, ω, E ′ q ] one‐axis model of a generator. The local control strategy has been verified for the New England 39 bus system. An extensive simulation study shows robustness of the non‐linear controllers and better performance than PSS‐based classical controllers. © 1997 John Wiley & Sons, Ltd.