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    An Analysis of the ZVS Two-Inductor Boost Converter under Variable Frequency Operation

    136647_136647.pdf (2.168Mb)
    Access Status
    Open access
    Authors
    Li, Q.
    Wolfs, Peter
    Date
    2007
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Li, Quan and Wolfs, Peter. 2007. An Analysis of the ZVS Two-Inductor Boost Converter under Variable Frequency Operation. IEEE Transactions on Power Electronics. 22 (1): pp. 120-131.
    Source Title
    IEEE Transactions on Power Electronics
    DOI
    10.1109/TPEL.2006.886598
    ISSN
    08858993
    Faculty
    Department of Electrical and Computer Engineering
    School of Engineering
    Faculty of Science and Engineering
    Remarks

    Copyright © 2007 IEEE This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.

    URI
    http://hdl.handle.net/20.500.11937/30235
    Collection
    • Curtin Research Publications
    Abstract

    The two-inductor boost converter has been previously presented in a zero-voltage switching (ZVS) form where the transformer leakage inductance and the MOSFET output capacitance can be utilized as part of the resonant elements. In many applications, such as maximum power point tracking (MPPT) in grid interactive photovoltaic systems, the resonant two-inductor boost converter is required to operate with variable input output voltage ratios. This paper studies the variable frequency operation of the ZVS two-inductor boost converter to secure an adjustable output voltage range while maintaining the resonant switching transitions. The design method of the resonant converter is thoroughly investigated and explicit control functions relating the circuit timing factors and the voltage gain for a 200-W converter are established. The converter has an input voltage of 20 V and is able to produce a variable output voltage from 169 V to 340 V while retaining ZVS with a frequency variation of 1 MHz to 407 kHz. Five sets of theoretical, simulation and experimental waveforms are provided for the selected operating points over the variable load range at the end of the paper and they agree reasonably well. The converter has achieved part load efficiencies above 92% and an efficiency of 89.6% at the maximum power of 200 W.

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    • Variable Frequency Control of the Zero-Voltage Switching Two-Inductor Boost Converter
      Li, Q.; Wolfs, Peter (2005)
      The two-inductor boost converter has been previously presented in a zero-voltage switching (ZVS) form where the transformer leakage inductance and the MOSFET output capacitance can be utilized as part of the resonant ...
    • An Analysis of a Voltage Clamped Zero-Voltage Switching Two-Inductor Boost Converter with a Wide Load Range
      Li, Q.; Wolfs, Peter (2006)
      The Zero-Voltage Switching (ZVS) two-inductor boost converter has been previously developed for the dc-dc conversion stage in a photovoltaic (PV) Module Integrated Converter (MIC) and is able to operate with variable load ...
    • The Power Loss Optimization of a Current Fed ZVS Two-Inductor Boost Converter With a Resonant Transition Gate Drive
      Li, Q.; Wolfs, Peter (2006)
      This paper develops a power loss optimization method in a current fed zero-voltage switching (ZVS) two-inductor boost converter, which is suitable for the module integrated converter applicationsin grid interactive ...
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