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Stability Analysis of Single Machine Infinite Bus Power System with TCSC Controller

Dr.S. Latha, Dr. Mary Raja Slochanal, J. Pandia Rajan

Abstract


The design objective is modeling, simulation and optimal tuning of Thyristor Controlled Series Compensator (TCSC) controller for improvement of stability of Single Machine Infinite Bus (SMIB) power system. The design of TCSC controller requires optimization of multiple performance measures that are competing with each other. The design factor is to improve the power system stability with minimum control effort. Lead- lag Control structure for TCSC is proposed and a comprehensive assessment of the effects of tuned TCSC controller parameters have been tuned using global optimization for ISE performance index of the power system. The simulation results show the proposed controller is effective in damping low frequency oscillation. For various system parameters the stability analysis of the system is carried out. Root locus analysis is carried out to asset the stability of SMIB system with the proposed TCSC controller. The system transfer function is found and the stability of the system with controller and without controller is found and stability is analyzed.


Keywords


Power System Stability, Root Locus, SMIB Power System, Thyristor Controlled Series Compensator.

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References


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