Takagi-sugeno fuzzy gains scheduled PI controller for enhancement of power system stability

Hassan, L.H. and Moghavvemi, M. and Mohamed, H.A.F. (2010) Takagi-sugeno fuzzy gains scheduled PI controller for enhancement of power system stability. American Journal of Applied Sciences, 7 (1). pp. 145-152. ISSN 1546-9239,

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Problem statement: Power system oscillations affect system stability and may lead to failure if not properly controlled. Approach: A Takagi-Sugeno Fuzzy Gains Scheduled Proportional and Integral (FGPI) controller was proposed for a Thyristor Controlled Series Capacitor (TCSC)-based stabilizer to enhance the power system stability. Linguistic rules and fuzzy inference mechanism are utilized to tune the controller parameters on-line in different operating states. The proposed controller was applied to a single machine infinite bus system represented by the Phillips-Heffron generator model. Simulation studies have been carried out using MATLAB Fuzzy Logic toolbox. Simulated Annealing-based Power System Stabilizer (SAPSS) and Simulated Annealing-based TCSC Stabilizer (SACSC) approaches were also simulated in this study and their results were compared with proposed controller. Results: The simulation results demonstrated that the proposed control scheme performs well and strongly control the power system under different loading conditions, disturbances and system parameter variations. Conclusion: The proposed controller is robust and more suitable for damping of low frequency oscillation and more effective in improving dynamic stability and voltage profile than the two other approaches. © 2010 Science Publications.

Item Type: Article
Uncontrolled Keywords: Gain scheduling control; Low frequency oscillation; Takagi-Sugeno fuzzy control; TCSC
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Faculty of Engineering
Depositing User: Ms. Norhamizah Tamizi
Date Deposited: 20 Mar 2014 04:25
Last Modified: 23 Nov 2017 03:11
URI: http://eprints.um.edu.my/id/eprint/9659

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