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Contribution à l'étude des systèmes de compensation FACTS en général, l'UPFC en particulier, pour le contrôle du transit de puissance dans un réseau de transport

Abstract : Electrical systems are strongly interconnected where the power transit is governed solely by Kirchhoffs laws on which the dispatchers have no means to act. It results in sorne unbalanced distribution of loads, provoking thus overloads of sorne electrical lines and a reduction of the stability margin of the electrical system. In order to solve these problems of the electrical power transit control, the consortium of American electricity companies (EPRI) has launched the FACTS project (Flexible Alternate Current Transmission System) in 1988. The FACTS concept regroups all systems using power electronic devices applied on the electrical system. Among the FACTS systems, the UPFC device (Unified Power Flow Controller) is the most complete and the most effective. It is the union of a shunt compensator (CSPRA) and a series compensator (ISA), and has a functionality ofboth a CSPRA, an ISA and a phase-shifter. It is therefore able to control, simultaneously and independently, the active and reactive line power. It can control the three parameters associated to the power transit; the voltage, the impedance and the phase of the electrical line. The control of one of these parameters allows to vary the line active power. A model of this deviee is developed so as to determine the adequate controls of the shunt and series parts and in the same time, the one of the active power control. This work is devoted to the application of the FACTS systems, especiaIly to the UPFC in order to control the power transit in an electrical system whose parameters are given by EDF. The different numerical simulations, undertaken on MATLAB and SABER, have shown the contribution of these devices to control the power transit and confirm aIl the hopes they had aroused in years 90.
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http://docnum.univ-lorraine.fr/prive/SCD_T_2000_0068_BELACHEHEB.pdf
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Submitted on : Thursday, March 29, 2018 - 10:37:57 AM
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Khalid Belacheheb. Contribution à l'étude des systèmes de compensation FACTS en général, l'UPFC en particulier, pour le contrôle du transit de puissance dans un réseau de transport. Autre. Université Henri Poincaré - Nancy 1, 2000. Français. ⟨NNT : 2000NAN10068⟩. ⟨tel-01746445⟩

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