Optimization of Second Order Non-Linear System using Fuzzy Logic Controller

Abstract

This paper presents the optimization of second order nonlinear system under Fuzzy Logic Controller (FLC) and Proportional - Integral - Differential (PID) conventional control method. The response of nonlinear system at different inputs is measured under FLC and PID controller. Later on performance of nonlinear system is compared under both FLC and PID controller. The major challenges with any nonlinear system is complexity involved for attaining the solution. So linearization was done to solve the problem. It is found that performance of the non linear system using fuzzy logic controller (FLC) is much better than PID controller in terms of settling time, peak overshoot.