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    A Three-Phase Symmetrical DC-Link Multilevel Inverter with Reduced Number of DC Sources

    Access Status
    Fulltext not available
    Authors
    Hasan, M.
    Abu-Siada, Ahmed
    Dahidah, M.
    Date
    2017
    Type
    Journal Article
    
    Metadata
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    Citation
    Hasan, M. and Abu-Siada, A. and Dahidah, M. 2017. A Three-Phase Symmetrical DC-Link Multilevel Inverter with Reduced Number of DC Sources. IEEE Transactions on Power Electronics. 33 (10): pp. 8331 - 8340.
    Source Title
    IEEE Transactions on Power Electronics
    DOI
    10.1109/TPEL.2017.2780849
    ISSN
    0885-8993
    School
    School of Electrical Engineering, Computing and Mathematical Science (EECMS)
    URI
    http://hdl.handle.net/20.500.11937/60763
    Collection
    • Curtin Research Publications
    Abstract

    This paper presents a novel three-phase DC-link multilevel inverter topology with reduced number of input DC power supplies. The proposed inverter consists of series-connected half-bridge modules to generate the multilevel waveform and a simple H-bridge module, acting as a polarity generator. The inverter output voltage is transferred to the load through a three-phase transformer, which facilitates a galvanic isolation between the inverter and the load. The proposed topology features many advantages when compared with the conventional multilevel inverters proposed in the literatures. These features include scalability, simple control, reduced number of DC voltage sources and less devices count. A simple sinusoidal pulse-width modulation technique is employed to control the proposed inverter. The performance of the inverter is evaluated under different loading conditions and a comparison with some existing topologies is also presented. The feasibility and effectiveness of the proposed inverter are confirmed through simulation and experimental studies using a scaled down low-voltage laboratory prototype.

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