Title page for etd-0621118-221807


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URN etd-0621118-221807
Author Ta-Hsun Lo
Author's Email Address No Public.
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Department Electrical Engineering
Year 2017
Semester 2
Degree Master
Type of Document
Language zh-TW.Big5 Chinese
Title Design and Implementation of a Bridgeless Voltage-Doubler Boost Converter for Power Factor Correction
Date of Defense 2018-07-19
Page Count 102
Keyword
  • AC-DC Converter
  • Bridgeless Power Factor Corrector
  • Power Factor Correction
  • Digital Average Current Control
  • Voltage-Doubler Boost Converter
  • Abstract A bridgeless voltage-doubler boost converter for power factor correction is proposed in this thesis. The proposed circuit has several advantages over the conventional voltage-doubler AC to DC converter such as reducing the component, simplifying feedback circuit, improving conversion efficiency, etc. The proposed converter uses digitalized average current control method to control the AC input voltage in positive and negative half-cycle, respectively, to achieve power factor correction. The voltage-doubler circuit is installed at the output terminal. Therefore, the voltage conversion gain of the proposed circuit is twice than the conventional boost AC to DC converter. For this reason, the proposed circuit has great potential to be used for high voltage applications. Using the power loss calculation model in this thesis can analyze each component. The conversion efficiency can be determined from the power loss calculation model and the experiment results. TI TMS320F28335 is used in this thesis and implemented the proposed converter with an AC input voltage of 110V, DC output voltages between 400V to 700V and output power of 600W. Finally, the validity of proposed converter is identified in this thesis. Experimental results confirm that the power factor and total harmonic distortion of input current of proposed converter can conform the requirements of international regulations at whole load. In addition, the maximum conversion efficiency of 95.75% can be achieved.
    Advisory Committee
  • Hung-Liang Cheng - chair
  • Tzung-Lin Lee - co-chair
  • Yao-Ching Hsieh - co-chair
  • Jen-Hao Teng - advisor
  • Files
  • etd-0621118-221807.pdf
  • Indicate in-campus at 5 year and off-campus access at 5 year.
    Date of Submission 2018-07-21

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