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http://dx.doi.org/10.5391/JKIIS.2005.15.1.120

Fuzzy Scheduling for the PID Gain Tuning  

Shin Wee-Jae (경남대학교 전자전기공학부)
Publication Information
Journal of the Korean Institute of Intelligent Systems / v.15, no.1, 2005 , pp. 120-125 More about this Journal
Abstract
In this paper, We propose the fuzzy controller for the gain tuning of PID controller The proposed controller doesn't use the crisp output error and rule tables though with a fuzzy inference process in forward fuzzifier, New Fuzzy PID Controller assigns relations and ranges of two variables of PID gain parameters. These new gain parameters are calculated by the fuzzy inference with max-min ranges of Kp and Kd. The Ki parameter is computed automatically between Kp and Kd parameter Is calculated by Ziegler-Nickels tuning rules. Finally we experimented the propose controller by the hydraulic servo motor control system. We can obtained desired results through the good control characteristics.
Keywords
PID Controller; Fuzzy PID Controller; Fuzzy Gain Scheduling; Hydraulic servo system;
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