Design of Coordinated Control of PSS and TCSC using LQR Optimal Controller

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Published Dec 28, 2020
https://doi.org/10.33686/pwj.v16i2.157661
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Volume 16, Issue 2, December 2020

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Jaya Prakash Rao
Department of Electrical Engineering, IARE, Dundigal, Hyderabad – 500043, Telangana
N. D. Sridhar
Department of Electrical and Electronics Engineering, Annamalai University, Annamalainagar – 608002, Tamil Nadu
Ramalla Issac
Department of Electrical and Electronics Engineering, Marri Laxman Reddy Institute of Technology and Management Dundigal, Hyderabad – 500 043, Telangana

Abstract

An Optimal State Feedback Controller (OSFC) based on linear Quadratic Regulator (LQR) concept, is applied for simultaneous coordinated designing of the Power System Stabilizer (PSS) and Thyristor Controlled Series Capacitor (TCSC) as a damping controller in the Single Machine Infinite Bus (SMIB) power system. The performance of the proposed controllers is applied for nominal loading conditions. The eigen value analysis demonstrates the high performance of the proposed controllers and their ability to provide efficient damping of Low Frequency Oscillations (LFO’s). The performance of the proposed controllers with LQR has an excellent capability in damping LFO’s and enhance the dynamic stability of the system.

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How to Cite
Prakash Rao, J., Sridhar, N. D., & Issac, R. (2020). Design of Coordinated Control of PSS and TCSC using LQR Optimal Controller. Power Research - A Journal of CPRI, 181–186. https://doi.org/10.33686/pwj.v16i2.157661
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