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http://dx.doi.org/10.5916/jkosme.2009.33.8.1246

Implementation of a Fuzzy PI+PD Controller for DC Servo Systems  

Hong, Soon-Ill (부경대학교 전기제어공학부)
Hong, Jeng-Pyo (동의과학대학 전기공학과)
Jung, Sung-Hwan (부경대학교 전기제어공학부)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.33, no.8, 2009 , pp. 1246-1253 More about this Journal
Abstract
This paper presents derived a calculating form of fuzzy inference, based on decomposition of $\alpha$-level sets. Based on the calculating form it is propose that fuzzy logic circuits of PI+PD controller are a body from fuzzy inference to defuzzificaion in cases where the command variable u directly is generated PWM. The effect of quantization on $\alpha$-levels is investigated. with input/out characteristics of fuzzy controller by simulation. It is concluded that 4 quantization levels are sufficient result for fuzzy control performance of DC servo system. Simulation and experimental results demonstrated that the hardware implementation of the proposed controller can successfully provide good performance on the position control of DC servo system.
Keywords
Decomposition of $\alpha$-level set; PI+PD controller; Fuzzy logic circuits;
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