Optimal FOPDT Modeling Of Liquid Level Control System Using Genetic Algorithm |
Author(s): |
PATEL TUSHAR M. , L.D COLLEGE OF ENGINEERING; Prof. V.P. PATEL, L.D COLLEGE OF ENGINEERING |
Keywords: |
PID controller, Real time Liquid level system, Genetic Algorithm. |
Abstract |
PID controllers are commonly used in process loops. Most of industrial process loops are controlled by PID controllers due to its easy understanding, simple structure and robustness to the process parameter variations. PID controllers are commonly used in feedback control loops where industries processes are mostly open loop stable or unstable. Most of the PID controller parameters are tuned using trial and error method. Proper selection of feedback construction and controller parameter tuning helps to improve the performance of the close loop system. Poor PID controller parameter tuning can lead to wear and tear associated with excessive manipulating action, poor control response and even poor quality products. In this work, we used Liquid level system which is located in Process Control lab, I.C department at L.D.C.E Ahmadabad. Take real time reading for closing the control valve at different position like 30%, 40%, 50% and 60%.and find out first order plus dead time (FOPDT) model for this different readings. After finding the FOPDT model for this different readings we used Genetic Algorithm (G.A) method to optimize the solution and find out the best value of first order plus dead time (FOPDT) like process gain (K), Process time constant (Tp) and Delay time (td). |
Other Details |
Paper ID: IJSRDV2I5064 Published in: Volume : 2, Issue : 5 Publication Date: 01/08/2014 Page(s): 180-184 |
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