FLOW CONTROL SYSTEM USING FUZZY LOGIC

Abstract

This study investigates the control of liquid level of flow control system Proportional-integral-derivative controllers were used in this study as a control strategy. Optimum control setting has been determined and implemented by using Ziegler-Nicholls tuning method. Fuzzy logic control systems were introduced by (Lotfi Zadeh) to optimize the process control parameters in better way. In this thesis, a flow control system strategy been implemented with proportional-integral-derivative controller and then optimized with fuzzy logic controller (Mamdani-type fuzzy processing). The fuzzy logic control strategy shows the improvement in control specification like maximum overshoot, steady state error compared with PID control strategy. The results show the superiority of fuzzy logic controller over comparing with proportional integral derivative controller.