This paper presents the design of a new current controller for a three-level inverter of electric trains using neural networks (NNs). From past experience, the unbalance of DC-link voltage in three-level inverters causes a low power factor and increased harmonics to induction motors of traction vehicles. The proposed current control scheme offers 'tight DC-link voltage balancing' for the inverter along with nonlinear mapping of essential switching patterns and fault tolerance, which are inherent characteristics of NNs. A computer simulation shows that a new current control scheme provides a comparable performance to a conventional sinusoidal pulse-width-modulation (SPWM) control in many aspects.


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    Title :

    A new current control scheme for a 3-level inverter using neural networks


    Contributors:
    Choi, J.Y. (author) / Choy, I. (author) / Song, J.H. (author) / Lee, S.C. (author) / Kim, G.S. (author)


    Publication date :

    1999


    Size :

    3 Seiten, 12 Quellen




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English