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Linear Matrix Inequality Based Supplementary Controller for TCSC


Lokesh Dewangan , Indian Institute of Technology Roorkee


Electromechanical Oscillations, TCSC Control, H-Infinity Control, Eigenvalues, Linear Matrix Inequality, Power System Stability


The paper discusses the design of a robust controller using LMI for TCSC to damp out the oscillations in a power system. The focus being on robustness and better performance, the pole placement constraints and H∞ performance are formulated into LMI. These LMIs are solved using optimization method with minimization of objective function. The weight functions for conventional H∞ controller are designed for single machine infinite bus system (SMIBS). The responses of both controllers are compared. The electromechanical oscillations present in system are identified using eigenvalues of the system. The simulation results of both controllers at different loading conditions are found satisfactory in damping power system oscillations.

Other Details

Paper ID: IJSRDV4I110193
Published in: Volume : 4, Issue : 11
Publication Date: 01/02/2017
Page(s): 155-159

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