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http://dx.doi.org/10.5916/jkosme.2014.38.5.550

Level control of single water tank systems using Fuzzy-PID technique  

Lee, Yun-Hyung (Korea Port Training Institute)
Jin, Gang-Gyoo (Division of IT, Korea Maritime and Ocean University)
So, Myung-Ok (Division of Marine Engineering, Korea Maritime and Ocean University)
Abstract
In this study, for the control of a single water tank system, a fuzzy-PID controller design technique based on a fuzzy model is investigated. For this purpose, a water tank system is linearized as a number of submodels depending on the operating point, and a fuzzy model is obtained by fuzzy combining. Each submodel is approximated as a first order time delay model, and a PID controller is designed using several existing tuning techniques. Then, through the fuzzy combination of this controller using the same method as that of the fuzzy model, a fuzzy-PID controller is designed. For the proposed technique, a simulation is performed using the fuzzy model of a water tank system, and the validity is examined by comparing its performance with that of a PID controller.
Keywords
Single tank level control system; Fuzzy model; First order time delay model; PID controller; fuzzy PID controller;
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Times Cited By KSCI : 1  (Citation Analysis)
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