Journal of Power Electronics

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

DOI QR Code

A KY Converter Integrated with a SR Boost Converter and a Coupled Inductor

  • Hwu, Kuo-Ing (Department of Electrical Engineering, National Taipei University of Technology) ;
  • Jiang, Wen-Zhuang (Department of Electrical Engineering, National Taipei University of Technology)
  • Received : 2016.08.18
  • Accepted : 2017.02.08
  • Published : 2017.05.20
Download PDF
⟨ Previous Next ⟩

Abstract

A KY converter integrated with a conventional synchronously rectified (SR) boost converter and a coupled inductor is presented in this paper. This improved KY converter has the following advantages: 1) the two converters use common switches; 2) the voltage gain of the KY converter can be improved due to the integration of a boost converter and a coupled inductor; 3) the leakage inductance of the coupled inductor is utilized to achieve zero voltage switching (ZVS); 4) the current stress on the charge pump capacitors and the decreasing rate of the diode current can be limited due to the use of the coupled inductor; and 5) the output current is non-pulsating. Moreover, the active switches are driven by using one half-bridge gate driver. Thus, no isolated driver is needed. Finally, the operating principle and analysis of the proposed converter are given to verify the effectiveness of the proposed converter.

Keywords

References

  1. M. Indhumathi, S. Edward Rajan, and T. Rakesh, "Performance analysis of high gain isolated soft switch DC-DC converter for thermoelectric energy harvesting system using MPPT control strategies," in Proc. ICCPCT, pp. 1-9, 2016.
  2. J. Wang, F. Z. Peng, J. Anderson, A. Joseph, and R. Buffenbarger, "Low cost fuel cell converter system for residential power generation," IEEE Trans. Power Electron., Vol. 56, No. 8, pp. 2970-2980, Sep. 2009.
  3. L. Zhang, K. Sun, L. Feng, and H. Ge, "A modular grid-connected photovoltaic generation system based on DC bus," IEEE Trans. Power Electron., Vol. 26, No. 2, pp. 523-531, Feb. 2011. https://doi.org/10.1109/TPEL.2010.2064337
  4. G. Wu, X. Ruan, and Z. Ye, "Non-isolated high step-up converter adopting coupled inductor," in Proc. IECON, pp. 3506-3510, 2016.
  5. S. H. Hosseini, R. S. Alishah, and A. Z. Gharehkoushan, "Enhancement of extracted maximum power from partially shaded multi-string PV panels using a new cascaded high step-up DC-DC-AC converter," in Proc. ELECO, pp. 26-28, 2015.
  6. J. A. B. Vieira and A. M. Mota, "Thermoelectric generator using water gas heater energy for battery charging," in Proc. CCA, pp. 1477-1482, 2009.
  7. Y. Fang, L. Ge, and W. Hua, "Multiple-input dc-dc converter for the thermoelectric-photovoltaic energy system in hybrid electric vehicles," in Proc. VPPC, pp. 1-5, 2010.
  8. Y. Huleihel, A. Cervera, and S. Ben-Yaakov, "A high gain dc-dc converter for energy harvesting of thermal waste by thermoelectric generators," in Proc. IEEEI, pp. 1-5, 2012.
  9. S. Jeevitha, S. E. Rajan, and T. Rakesh, "Performance analysis of high gain dc-dc boost converter for thermoelectric power generation system," in Proc. IEEE ICGCCEE, pp. 1-7, 2014.
  10. R. W. Erickson and D. Maksimovic, Fundamentals of Power Electronics, 2nd ed., Norwell: KLuwer Academic Publishers, Chap. 4, pp. 92-101, 2001.
  11. G. M. L. Chu, D. D. C. Lu, and V. G. Agelidis, "Flyback-based high step-up converter with reduced power processing stages," IET Power Electron., Vol. 5, No. 3, pp. 349-357, Mar. 2012. https://doi.org/10.1049/iet-pel.2011.0204
  12. Y. Berkovich and B. Axelrod, "High step-up dc-dc converter based on the switched-coupled-inductor boost converter and diode-capacitor multiplier," in Proc. PEMD, pp. 1-5, 2012.
  13. Q. Zhao and F. C. Lee, "High-efficiency high step-up dc-dc converters," IEEE Trans. power Electron., Vol. 18, No. 1, pp. 65-73, Jan. 2003. https://doi.org/10.1109/TPEL.2002.807188
  14. K. I. Hwu and Y. T. Yau, "Voltage-boosting converter based on charge pump and coupling inductor with passive voltage clamping," IEEE Trans. Ind. Electron., Vol. 57, No. 5, pp. 1719-1727, May 2010. https://doi.org/10.1109/TIE.2009.2032206
  15. K. I. Hwu and W. C. Tu, "Voltage-boosting converters with hybrid energy pumping," IET Power Electron., Vol. 5, No. 2, pp. 185-195, Feb. 2012. https://doi.org/10.1049/iet-pel.2011.0076
  16. K. I. Hwu, C. C. Lin, and J. J. Shieh, "A simple step-up converter," in Proc. PEDS, pp. 496-500, 2011.
  17. R. Guo, Z. Liang, and A. Q. Huang, "A high efficiency transformerless step-up dc-dc converter with high voltage gain for LED backlighting applications," in Proc. APEC, pp. 1350-1356, 2011.
  18. K. I. Hwu and Y. T. Yau, "KY converter and its derivatives," IEEE Trans. Power Electron., Vol. 57, No. 6, pp. 128-137, Jan. 2009.
  19. K. I. Hwu and Y. T. Yau, "Two types of KY buck-boost converters," IEEE Trans. Ind. Electron., Vol. 56, No. 8, pp. 2970-2980, Aug. 2009. https://doi.org/10.1109/TIE.2009.2023100
  20. K. I. Hwu and T. J. Peng, "A novel buck-boost converter combing KY and buck converters," IEEE Trans. Power Electron., Vol. 56, No. 8, pp. 2970-2980, May 2009.
  21. K. I. Hwu, K. W. Huang, and W. C. Tu, "Step-up converter combing KY and buck-boost converters," Electron. Lett., Vol. 47, No. 12, pp. 722-724, Jan. 2011. https://doi.org/10.1049/el.2011.0392
  22. K. I. Hwu and Y. T. Yau, "Soft switching of KY converter," in Proc. APEC, pp. 1477-1482, 2008.
  23. K. I. Hwu and Y. T. Yau, "KY converter with zero voltage switching," in Proc. ICIEA, pp. 1103-1106, 2010.
  24. B. R. Lin, F. Y. Hsieh, and J. J. Chen, "Analysis and implementation of a bidirectional converter with high conversion ratio," in Proc. ICIT, pp. 1-6, 2008.
  25. M. Delshad, S. Mohammadi, and S. Moosavi, "A new cascaded high step-up dc-dc converter," in Proc. ECTI-CON, pp. 1-4, 2012.
  26. M. R. Banaei, H. Ardi, and A. Farakhor, "Analysis and implementation of a new single- switch buck-boost dc/dc converter," IET Power Electron., Vol. 7, No. 7, pp. 1906-1914, Jul. 2014. https://doi.org/10.1049/iet-pel.2013.0762
  27. K. I. Hwu and W. Z. Jiang, "Applying coupled inductor to step-up converter constructed by KY and buck-boost converters," in Proc. IISIE'13, pp. 28-31, 2013.