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Author: search.filters.author.Tipsuwanporn, V.Subject: search.filters.subject.Fuzzy logic

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    Item type:Publication,
    DC motor speed control using fuzzy logic based on LabVIEW
    (2006-12-01)
    Thepsatorn, P.
    ;
    Numsomran, A.
    ;
    Tipsuwanporn, V.
    ;
    Teanthong, T.
    This paper presents implement in speed control of a separately excited DC motor using fuzzy logic control (FLC) based on Lab VIEW (Laboratory Virtual Instrument Engineering Workbench) program. Lab VIEW, is a graphical programming environment suited for high-level or system-level design. Therefore, the principle that are data flow model, different from text-base programming and a sequential model. The user-friendly interface and toolbox design are shown the high level of suitableness and stability of Lab VIEW and fuzzy logic on speed control of DC motor. The fuzzy logic controller designed to applies the required control voltage that sent to dc motor based on fuzzy rule base of motor speed error ( e ) and change of speed error (ce). The results show the control as a FLC that do the comparison with PI and PIP Controller. © 2006 ICASE.
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    Energy saving of three-phase induction motor using fuzzy controller
    (2006-12-01)
    Tipsuwanporn, V.
    ;
    Intajag, S.
    ;
    Harnnarong, S.
    ;
    Krongratana, V.
    This paper presents energy saving of three-phase induction motor, which is operated in regenerative mode. In this mode, the energy flows back into DC link voltage and causes to occur high voltage in capacitor that may be destroy the capacitor and switching component such an IGBT. The proposed method presents connection buck converter circuit between the rectifier diodes and the inverter, to control the voltage feeding into the inverter by using two fuzzy controllers. The first fuzzy controller will be managing the switching duty cycle of buck converter. The second fuzzy controller, which provide to control the switching component of braking circuit. The second controller will be synchronized with the first controller to balance the energy of the capacitor. © 2006 ICASE.