The Transactions of the Korean Institute of Power Electronics (전력전자학회논문지)

The Korean Institute of Power Electronics (전력전자학회)
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An Improved Non-Isolated 3-Level High Step-Up Boost Converter

개선된 비절연형 3-레벨 고승압 부스트 컨버터

  • Kim, Su-Han (School of Energy Eng., Kyungpook National University) ;
  • Cha, Hon-Nyong (School of Energy Eng., Kyungpook National University) ;
  • Kim, Heung-Geun (Dept. of Electrical Eng., Kyungpook National University) ;
  • Choi, Byung-Cho (School of Electronics Eng., Kyungpook National University)
  • Received : 2013.01.25
  • Accepted : 2013.03.31
  • Published : 2013.08.20
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Abstract

In this paper, an improved non-isolated 3-level high step-up boost converter is proposed. By using the well known duality principle, the proposed converter is derived from two-phase buck converter. Compared with the traditional boost converter and 3-level boost converter, the proposed converter can obtain very high voltage conversion ratio and the voltage stress of switching devices and diodes is only 1/4 of the output voltage. A 1 kW prototype converter is built and tested to verify performances of the proposed converter.

Keywords

References

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  1. A Non-Isolated 3-Level High Step-Up Boost Converter With Output Voltage Balancing vol.20, pp.5, 2015, https://doi.org/10.6113/TKPE.2015.20.5.464