Simulation Performance of PID and Fuzzy Logic Controller for Higher Order System

Abstract

The proportional-integral derivative controller (PID Controller) is a control loop feedback mechanism (Controller) widely used in industry. The high demand of PID controller is due to its fine control capabilities in a wide range of operating conditions. This paper presents design of PID controller using Ziegler-Nichols (ZN) technique for higher order systems. A fuzzy logic controller using simple approach and smaller rule set is also proposed. The aim of designed fuzzy controller is to present better control than PID controller. The simulation is done using Matlab/Simulink by comparing the performance of two controllers for higher order system. It is finally observed that fuzzy controller gives much better result than PID controller.