Volume : II, Issue : XI, November - 2013

Design and Application of PID Controller using Fuzzy logic for better Disturbance Rejection

I Srinu, Dr. M Siva Kumar

Abstract :

In general, PID controller is designed in offline conditions based on certain algorithm and put in the process. But due to this offline design, the controller is not able to reject the non–linear disturbances which occur in the system during operation. In order to overcome this drawback in conventional design, this paper proposes an intelligent approach like Fuzzy logic for disturbance rejection in the system by designing the controller in online conditions. i.e. the PID gains are changed in online according to the disturbances to reject it.The proposed intelligent PID controller design is based on pessen’s tuning algoritham for rejection of different disturbance.To validate the proposed approach, a liquid level control of a process tank is considered and an intelligent PID controller is designed.The designed intelligent PID controller is simulated under different disturbance using MATLAB/ Simulink and results are successfully verified.

Keywords :

Article: Download PDF   DOI : 10.36106/ijsr  

Cite This Article:

I Srinu, Dr. M Siva Kumar / Design and Application of PID Controller using Fuzzy logic for better Disturbance Rejection / International Journal of Scientific Research, Vol.2, Issue.11 November 2013

Number of Downloads : 669

References :