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

The Korean Institute of Power Electronics (전력전자학회)
권호 표지
DOI QR코드

DOI QR Code

Two Stage High Step-Up Converter for Low Input Voltage and High Current Applications

낮은 입력전압, 대전류 응용을 위한 2단 구성 승압컨버터

  • Noh, Young-Jae (Electrical & Electronics Engineering, Jeonju University) ;
  • Xu, Han (Electrical & Electronics Engineering, Jeonju University) ;
  • Kang, Cheol-Ha (Electrical & Electronics Engineering, Jeonju University) ;
  • Kim, Eun-Soo (Electrical & Electronics Engineering, Jeonju University) ;
  • Jang, Sang-Ho (LG Innotek Components R&D Center)
  • Received : 20110229
  • Accepted : 2012.05.12
  • Published : 2012.12.20
Download PDF
⟨ Previous Next ⟩

Abstract

DC-DC converter which composed of LLC resonant converter, operated by fixed switching frequency with fixed duty cycle (50%), and flyback converter to provide constant output voltage($400V_{DC}$) with variation of input voltage($30-60V_{DC}$) is proposed in this paper. To obtain constant output voltage($400V_{DC}$), flyback converter is not operated in case of above the maximum input voltage($60V_{DC}$) and operated as the input voltage decreases to below 60VDC. Therefore, flyback converter can be designed to the 50% power rating of the maximum power in the proposed DC-DC converter. Operation modes and voltage gain characteristics were analyzed and a 360W prototype converter was tested to verify the proposed converter.

Keywords

References

  1. S.B. Kjaer, J.K. Pedersen, F. Blaabjerg, "A review of single-phase grid-connected inverters for photovoltaic modules," IEEE Transactions on Industry Applications, pp. 1292-1306, 2005.
  2. Quan Li, Peter Wolfs, "A Review of the Single Phase Photovoltaic Module Integrated Converter Topologies With Three Different DC Link Configurations," IEEE Transactions on Power Electronics, pp. 1320-1333, 2008.
  3. Christian P. Dick, Heinz van der Broeck, etc. "Design and Implementation of a Modular Interactive System as Teaching Project," PESC '06. 37th IEEE, pp 1-7, 2006.
  4. Geoffrey R. Walker, "Cascaded DC-DC converter connection of photovoltaic modules," IEEE Transactions on Power Electronics, pp. 1130-1139, 2004.
  5. Zhang Chao, He Xiangning, Zhao Dean, "Design and control of a novel module integrated converter with power pulsation decoupling for photovoltaic system," IEEE ICEMS, pp. 2637-2639, 2008.
  6. Ho-Won Yoo, Yong-Min Jung, Seung-Beom Lim, Jun-Young Lee, Soon-Chan Hong, "DC-DC Converter of Fixed Duty Ratio Method for 1kW Photovoltaic System," The Transactions of The korean Institute of Power Electronics, pp. 46-48, 2008. 6.
  7. Hyung-Jun Chae, Kyoung-Dong Kim, Hyung-Rock Oh, Jun-Young Lee, "Isolated DC/DC Converter with Very Wide Input Voltage Ranges for Emergency Power Back-up System(EPBS)," The Transactions of The korean Institute of Power Electronics, pp. 334-341, 2011. 8. https://doi.org/10.6113/TKPE.2011.16.4.334
  8. Eun-Soo Kim, "DC-DC Converter with Input Voltage Variable Ranges" Patent Application No. '10-2011-0083016'
  9. Sang-Ho Jang, Young-Jae No, Cheol-ha Kang, Han-Seok Jeon, Eun-Soo Kim, "DC-DC Converter with Wide Input Voltage Ranges," The Transactions of The korean Institute of Power Electronics, pp. 433-435. 2011. 7.