Effect of Reactive Power Static Compensator on Transient Stability in Power Systems
Subject Areas : Power Engineering
S. Mohammadali Zanjani
1
(Department of Electrical Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran|Smart Microgrid Research Center, Najafabad Branch, Islamic Azad University, Najafabad, Iran)
Ghazanfar Shahgholian
2
(Department of Electrical Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran|Smart Microgrid Research Center, Najafabad Branch, Islamic Azad University, Najafabad, Iran)
Mehdi Mahdavian
3
(Department of Electrical Engineering, Naein Branch, Islamic Azad University, Naein, Iran)
Farhad Mesrinejad
4
(Department of Electrical Engineering, Tiran Branch, Islamic Azad University, Tiran, Iran)
Keywords: reactive power, static compensator, transient stability, FACTS devices,
Abstract :
With the rapid progress of semiconductors in the level of voltage and power of the power system as well as the progress of control systems, compensators with high flexibility and performance range have been designed and built to increase the flexibility of energy transmission systems. to be These compensators installed in power systems are called flexible ac transmission systems (FACTS). One of the most important advantages of FACTS devices in the transmission system is to increase the transient stability margin of the power system by controlling the active and reactive power of the line during the occurrence of a fault in the system. In this article, the effect of one FACTS device with parallel connection, i.e. static compensator, on transient stability is investigated. The studied system is a two-machine power system including a hydropower plant and a local power plant. The simulation results show the effect of the compensator on the damping of electric power angle fluctuations. Also, the simulation results show the lack of influence of the compensator on the transmission active power in the transmission line. The simulation results have been obtained using Simulink MATLAB software.
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