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Stabilizer Design Based on UPFC Using Simulated Annealing


Affiliations
1 Department of Electrical Engineering, Boroujen Branch, Islamic Azad University, Boroujen, Iran, Islamic Republic of
 

This paper presents the application of Unified Power Flow Controller (UPFC) to enhance damping of Low Frequency Oscillations (LFO) at a Single-Machine Infinite-Bus (SMIB) power system installed with UPFC. Since UPFC is considered to mitigate LFO, a supplementary UPFC like power system stabilizer is designed to reach the defined purpose. Simulated Annealing (SA) is used to tune UPFC supplementary stabilizer. To show effectiveness, the proposed method is compared with another optimization method named Genetic Algorithms (GA). Several linear timedomain simulation tests visibly show the validity of proposed method in damping of power system oscillations. Also simulation results emphasis on the better performance of SA in comparison with GA.

Keywords

Flexible AC Transmission Systems, Unified Power Flow Controller, Low Frequency Oscillations, Simulated Annealing, Genetic Algorithms
User

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  • Stabilizer Design Based on UPFC Using Simulated Annealing

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Authors

Reza Hemmati
Department of Electrical Engineering, Boroujen Branch, Islamic Azad University, Boroujen, Iran, Islamic Republic of
Sayed Mojtaba Shirvani Boroujeni
Department of Electrical Engineering, Boroujen Branch, Islamic Azad University, Boroujen, Iran, Islamic Republic of
Hamideh Delafkar
Department of Electrical Engineering, Boroujen Branch, Islamic Azad University, Boroujen, Iran, Islamic Republic of
Amin Safarnezhad Boroujeni
Department of Electrical Engineering, Boroujen Branch, Islamic Azad University, Boroujen, Iran, Islamic Republic of

Abstract


This paper presents the application of Unified Power Flow Controller (UPFC) to enhance damping of Low Frequency Oscillations (LFO) at a Single-Machine Infinite-Bus (SMIB) power system installed with UPFC. Since UPFC is considered to mitigate LFO, a supplementary UPFC like power system stabilizer is designed to reach the defined purpose. Simulated Annealing (SA) is used to tune UPFC supplementary stabilizer. To show effectiveness, the proposed method is compared with another optimization method named Genetic Algorithms (GA). Several linear timedomain simulation tests visibly show the validity of proposed method in damping of power system oscillations. Also simulation results emphasis on the better performance of SA in comparison with GA.

Keywords


Flexible AC Transmission Systems, Unified Power Flow Controller, Low Frequency Oscillations, Simulated Annealing, Genetic Algorithms

References





DOI: https://doi.org/10.17485/ijst%2F2011%2Fv4i7%2F30117