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http://dx.doi.org/10.5391/JKIIS.2007.17.3.355

A Study on the self-tuning of the design variables and gains using Fuzzy PI+D Controller  

Jang, Cheol-Su (원터치시스템 제어팀)
Choi, Jeong-Won (금오공과대학교 전자공학부)
Oh, Young-Seok (금오공과대학교 전자공학부)
Chae, Seog (금오공과대학교 전자공학부)
Publication Information
Journal of the Korean Institute of Intelligent Systems / v.17, no.3, 2007 , pp. 355-367 More about this Journal
Abstract
This paper proposes a design method of the PI(Proportional-Integral)+D(Derivative) controller using self-tuning of the design variables and controller gains. The used fuzzy PI+D controller is the approximated conventional continuos time linear PI+D controller and the used fuzzification method is the fuzzy single tone and the adapted defuzzification method is the simplified tenter of gravity. Fuzzy estimation result would be calculated in the other function elements from the classified fuzzy variables and the result determined by the design variables decides the controller gains. As a result, the proposed method shows the capability of the high speed tuning and can be applied to the case of input variables with many fuzzy partitions and also can bring out the advantage to reduce the reconstruction(digital sampling reconstruction) error. Most simulation results show that this controller makes much bettor efficiency and improvement by using design variables and controller gains.
Keywords
Design variables; Self-tuning; Fuzzy PI+D Controller;
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