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REPUBLIQUE ALGERIENNE DEMOCRATIQUE ET POPULAIRE Ministère de l'Enseignement Supérieur et de la Recherche Scientifique Université des Sciences et de la Technologie d'Oran U. S. T. O.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Boudiaf, Mohamed |
| Copyright Year | 2012 |
| Abstract | Unified power flow controller (UPFC) has been the most versatile Flexible AC Transmission System (FACTS) device due to its ability to control real and reactive power on transmission lines while controlling the voltage of the bus to which it is connected. UPFC being a multi-variable power system controller it is necessary to analyze its effect on power system operation. To study the performance of the UPFC in damping power oscillations using MATLAB/Simulink software, a de-coupled control system has been designed for the shunt inverter to control the UPFC bus voltage and the DC link capacitor voltage. The series inverter of a UPFC controls the real power flow in the transmission line. One problem associated with using a high gain PI controller (used to achieve fast control) for the series inverter of a UPFC to control the real power flow in a transmission line is the presence of low damping. This problem is solved in this research by using an adaptive fuzzy PI controller for the series inverter of UPFC. Transient response studies have been conducted using MATLAB/Simulink software to show the improvement in power oscillation damping with UPFC in a single machine infinite bus and then in a multi machine power system in two cases, the first one when the series inverter is equipped with a conventional PI controller, the second one when it is equipped with an adaptive fuzzy PI controller. The simulation results have been conducted in MATLAB/Simulink software show the viability of the proposed control strategy in damping power oscillations. A la memoire de mon pere a ma mere a mon epouse a mes fils et a mes freres et sœurs |
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| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
