2019•2019 International Conference on Computer, Communication, Chemical, Materials and Electronic Engineering (IC4ME2)Requires access

An Optimal LQG-DC Control for Compensating Voltage Fluctuation in a Single Area Power System

Fariya Tabassum, M. S. Raña

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Abstract

In this technical brief an optimal linear-quadratic-Gaussian (LQG) control scheme is proposed for the robust control of an automatic voltage regulator (AVR) in a single area power system. In order to improve the overshoot damping efficiency of the system a damping compensator (DC) is incorporated with the LQG controller. The aim of this LQG-DC controller is to restore the nominal voltage of a grid isolated power system due to sudden load variation. The response of AVR system after implementing conventional proportional-integral-derivative (PID), linear-quadratic-regulator (LQR) and LQG controller is compared with the proposed LQG-DC control scheme to prove its efficacy.

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Available abstract

Key concepts: Linear-quadratic-Gaussian control, Control theory (sociology), Optimal projection equations, Linear-quadratic regulator, Overshoot (microwave communication), PID controller, Voltage regulator, Controller (irrigation)