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Author: search.filters.author.Kunakorn, AnantawatSubject: search.filters.subject.Slope compensation

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    Control of bifurcation by fuzzy logic controller for current-mode boost converters
    (2007-12-01)
    Khaehintung, Noppadol
    ;
    Sirisuk, Phaophak
    ;
    Kunakorn, Anantawat
    This paper presents the design of a fuzzy logic controller for switching current-mode DC/DC boost converters. The proposed simple fuzzy logic controller, with nine rules, provides an optimal slope compensation to keep the system adequately remote from the first bifurcation point by means of reducing the current spectrum peak. In spite of nonlinear characteristics and instabilities of the converter, the performance of the closed-loop control system can be considerably improved to avoid bifurcation phenomena. It is found that the technique introduced in this paper gives satisfactory results with the regulating and tracking modes under changes in operating conditions. © 2006 IEEE.
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    Implementation of fuzzy logic controller with bifurcation control of a current-mode boost converter
    (2007-12-01)
    Khaehintung, Noppadol
    ;
    Sirisuk, Phaophak
    ;
    Kunakorn, Anantawat
    This paper presents the design of a basic fuzzy logic controller for switching current-mode DC/DC boost converters. The proposed simple fuzzy logic controllers used only nine rules to regulate output voltage. Moreover, they provide an optimal slope compensation to keep the system adequately remote from the first bifurcation point by mean of stabilizing around the reference signal. In spite of nonlinear characteristics and instabilities of the converter, the performance of the closed-loop control system can be considerably improved to avoid bifurcation phenomena. The experimental results found that these technique introduced in this paper give satisfactory results with the regulating and tracking modes under changes in operating conditions. © 2007 IEEE.