Analysis and Control Design for TCSC and PSS in a SMIB System Using Hopf Bifurcation

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Yasaei, Yasser | 2008

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 39349 (05)
University: Sharif University of Technology
Department: Electrical Engineering
Advisor(s): Karimi, Masoud
Abstract:
Analysis and design of power systems are challenging due to ever increasing dimension of the system and also the nonlinearities involved in the system. The conventional approach is to use linear analysis tools and then investigate the nonlinear impacts by the means of computer simulations. This requires great deal of trial and error and it is not always a timely approach. In this project, we initiate a comprehensive nonlinear analysis for a single-machine infinite-bus system by studying a Hopf bifurcation in its dynamics. We use results of our nonlinear analysis to study how a capacitive compensation such as TCSC works. Subsequently, we design a nonlinear controller for a PSS to have flexible control over steady-state and transient stability margins of the system. Numerical simulations are performed in MATLAB SimPowerSystems and the results are presented to confirm analytical derivations
Keywords:
Nonlinear Controller ; Thyristor Controled Series Capacitor (TCSC) ; Power System Stablizer(PSS) ; Linear Matrix Inequality (LMI) ; Power System Oscillation ; Hopf Bifurcation

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