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    Common mode voltage in a motor drive system with PFC

    Access Status
    Fulltext not available
    Authors
    zare, F.
    Adabi, J.
    Nami, A.
    Ghosh, Arindam
    Date
    2010
    Type
    Conference Paper
    
    Metadata
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    Citation
    zare, F. and Adabi, J. and Nami, A. and Ghosh, A. 2010. Common mode voltage in a motor drive system with PFC, in - (ed), 2010 14th International Power Electronics and Motion Control Conference, Sep 6 2010, pp. T4-57-T4-64. Macedonia: Institute of Electrical and Electronics Engineers ( IEEE ).
    Source Title
    2010 14th International Power Electronics and Motion Control Conference (EPE/PEMC 2010)
    Source Conference
    2010 14th International Power Electronics and Motion Control Conference
    ISBN
    978-142447854-5
    URI
    http://hdl.handle.net/20.500.11937/40605
    Collection
    • Curtin Research Publications
    Abstract

    Common mode voltage generated by a power converter in combination with parasitic capacitive couplings is a potential source of shaft voltage in an AC motor drive system. In this paper, a three-phase motor drive system supplied with a single-phase AC-DC diode rectifier is investigated in order to reduce shaft voltage in a three-phase AC motor drive system. In this topology, the common mode voltage generated by the inverter is influenced by the AC-DC diode rectifier because the placement of the neutral point is changing in different rectifier circuit states. A pulse width modulation technique is presented by a proper placement of the zero vectors to reduce the common mode voltage level, which leads to a cost effective shaft voltage reduction technique without load current distortion, while keeping the switching frequency constant. Analysis and simulations have been presented to investigate the proposed method.

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