A Comparative Study of various controllers for Azimuth Position Control of Reduced Order Antenna System

Abstract

In this thesis, Antenna azimuth position is controlled by three controllers PID, Fuzzy and Fuzzy-PID .The transfer function of antenna system is a third order system which has been reduced to a first order system using two different model order reduction techniques ie. Half rule approximation and balanced truncation. The comparative analysis of different model order reduction techniques has been done using matlab/simulink .Various controllers ie. PID, fuzzy and fuzzy-PID are implemented on reduced order model to obtain the desired output The performance of different controllers in the terms of various performance specifications such as rise time, settling time, peak overshoot, integral square error (ISE), integral absolute error(IAE) and integral time absolute error(ITAE) has been compared. simulation results reveals that fuzzy controller outperforms PID controller in the terms of rise time, settling time and peak overshoot while fuzzy-PID controller outperforms fuzzy controller in the terms of settling time and rise time.