Title :
Design of output feedback controller for PSS and TCSC by GA to improve the damping of power system oscillations
Author :
Jalilvand, Abolfazl ; Tirtashi, Mohammad Reza Safari
Author_Institution :
Electr. Eng. Dept., Zanjan Univ., Zanjan, Iran
fDate :
Nov. 29 2010-Dec. 1 2010
Abstract :
This paper focuses on designing of output feedback controller for PSS and TCSC based on genetic algorithm (GA) in order to damp the Low Frequency Oscillations (LFO). For this purpose a Single Machine Infinite Bus (SMIB) system with TCSC located at the terminal of generator has been considered. To earn the optimum values of the gains of the output feedback controller for PSS and TCSC, the GA has been used. At first, for normal loading condition, the system with and without proposed controllers has been simulated while the input power of generator has been changed suddenly. Finally, the robustness of these controllers has been evaluated by applying previous disturbance in input power of generator for three loading conditions (light, normal, heavy). The simulation results show that the system composed with proposed controllers has outstanding operation in fast damping of oscillations of power system.
Keywords :
control system synthesis; electric generators; feedback; genetic algorithms; power system stability; thyristor applications; GA; LFO; PSS; SMIB system; TCSC; genetic algorithm; low frequency oscillation; normal loading condition; output feedback controller design; power generator; power system oscillation; single machine infinite bus system; thyristor controlled series capacitor; GA; Output feedback; Power system; Stability;
Conference_Titel :
Power and Energy (PECon), 2010 IEEE International Conference on
Conference_Location :
Kuala Lumpur
Print_ISBN :
978-1-4244-8947-3
DOI :
10.1109/PECON.2010.5697578