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Vol. 7 No. 1 (2007): ELECTRICA

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Published: Jan 2, 2012
Keywords:
UPFC, PI controller, MIMO IMC controller, decoupling multivariable GPC with reference observation, decoupling fuzzy logic controller

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T. ALLAOUI
University of Science and Technology of Oran, Faculty of Electrical Engineering BP 1505 El-Mnaouar, Oran, AlgeriaTel/Fax : +213 41 425509
M. A. DENAÏ
University of Science and Technology of Oran, Faculty of Electrical Engineering BP 1505 El-Mnaouar, Oran, AlgeriaTel/Fax : +213 41 425509
M. BOUHAMIDA
University of Science and Technology of Oran, Faculty of Electrical Engineering BP 1505 El-Mnaouar, Oran, AlgeriaTel/Fax : +213 41 425509
C. BELFEDAL
University of Science and Technology of Oran, Faculty of Electrical Engineering BP 1505 El-Mnaouar, Oran, AlgeriaTel/Fax : +213 41 425509

ROBUST CONTROL OF UNIFIED POWER FLOW CONTROLLER (UPFC)

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T. ALLAOUI
University of Science and Technology of Oran, Faculty of Electrical Engineering BP 1505 El-Mnaouar, Oran, AlgeriaTel/Fax : +213 41 425509
M. A. DENAÏ
University of Science and Technology of Oran, Faculty of Electrical Engineering BP 1505 El-Mnaouar, Oran, AlgeriaTel/Fax : +213 41 425509
M. BOUHAMIDA
University of Science and Technology of Oran, Faculty of Electrical Engineering BP 1505 El-Mnaouar, Oran, AlgeriaTel/Fax : +213 41 425509
C. BELFEDAL
University of Science and Technology of Oran, Faculty of Electrical Engineering BP 1505 El-Mnaouar, Oran, AlgeriaTel/Fax : +213 41 425509

Abstract

This paper investigates control methods for the unified power flow controller in order to improve the stability of a power system hence providing security under increased power flow conditions. These include a direct PI controller with decoupling (PI-D), MIMO internal model control, multivariable GPC, multivariable GPC with decoupling algorithm (GPC-D) and adaptive fuzzy logic controls. The performances of the controllers are evaluated under different operating conditions of the power system. The results demonstrate that IMC, GPC, multivariable GPC-D and FLC are very effective in improving the transient power system stability and very robust against variable transmission line parameters.



 


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