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Implemented Logic Circuits of Fuzzy Inference Engine for DC Servo Control Using decomposition of $\alpha$-level fuzzy set  

이요섭 (부경대학교 전기공학과)
손의식 (부경대학교 전기공학)
홍순일 (부경대학교 전기제어계측 공학부)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.8, no.5, 2004 , pp. 1050-1057 More about this Journal
Abstract
The purpose of study is development of a fuzzy controller which independent of a computer and its software for fuzzy control of servo system. This paper describes a method of approximate reasoning for fuzzy control of servo system, based on decomposition of $\alpha$-level fuzzy sets, It is propose that fuzzy logic algorithm is a body from fuzzy inference to defuzzificaion in cases where the output variable u directly is generated PWM. The effectiveness of quantified $\alpha$-levels on input/output characteristics of fuzzy controller and output response of DC servo system is investigated. It is concluded that $\alpha$-cut 4 levels give a sufficient result for fuzzy control performance of DC servo system. The experimental results shows that the proposed hardware method is effective for practical applications of DC servo system.
Keywords
decomposition of ${\alpha}$-level set; fuzzy logic circuits.;
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