DOI QR코드

DOI QR Code

Hybrid Three-Level DC/DC Converter using an Energy Recovery Snubber

에너지회생스너버를 적용한 하이브리드 3레벨 DC/DC 컨버터

  • Received : 2016.10.07
  • Accepted : 2016.12.05
  • Published : 2017.02.20

Abstract

This paper describes a hybrid multi-output three-level DC/DC converter suitable for a wide, high-input voltage range of an auxiliary power supply for a high-power photovoltaic generating system. In a high-power photovoltaic generating system, the solar panel output voltage depends on solar radiation quantity and varies from 450Vdc to 1100Vdc. The proposed hybrid multi-output three-level DC/DC converter, which is an auxiliary power supply, would be used as power source for control printed circuit boards and relay and cooling fans in a high-power photovoltaic generating system. The proposed multi-output ($24V_{DC}/30A$, $230V_{DC}/5A$) hybrid three-level boost converter, which uses an energy recovery snubber, is controlled by variable-frequency and phase-shifted modulations and can achieve zero-voltage switching with all operating conditions of input voltage and load range. Experimental results of a 2kW prototype are evaluated and implemented to verify the performance of the proposed converter.

Keywords

References

  1. M. Venkatesan, R. Rajeswari, and K. Keerthivasan, "A survey of single phase grid connected photovoltaic system," IEEE Transactions on Industry Applications, Vol. 41, pp. 1292-1306, 2005. https://doi.org/10.1109/TIA.2005.853371
  2. K. Hddad, "Three level DC-DC converter as efficient interface in two stage PV power systems," Energytech, 2012 IEEE, pp. 1-6, 2012.
  3. S. H. Kim, H. N. Cha, H. G. Kim, and B. C. Choi, "An improved non-isolated 3-level high step-up boost converter," The Transactions of the Korean Institute of Power Electronics, Vol. 18, No. 4, pp. 342-348, Aug. 2013. https://doi.org/10.6113/TKPE.2013.18.4.342
  4. J. Chen, S. Hou, T. Sun, F. Deng, and Z. Chen, "A new interleaved double-input three-level boost converter," Journal of Power Electronics, Vol. 16, No. 3, pp. 925-935, May 2016. https://doi.org/10.6113/JPE.2016.16.3.925
  5. J. A Sabate, V. Vlatkovic, R. B Ridley, F. C Lee, and B. H Cho, "Design considerations for high-voltage high-power full-bridge zero-voltage-switched PWM converter," APEC Fifth Annual, pp. 275-284, 1990.
  6. D. Y. Kim, J. K. Kim, and G. W. Moon, "A three-level converter with reduced filter size using two transformer and flying capacitors," IEEE Transactions on Power Electronics, Vol. 28, No. 1, pp. 46-53, 2013. https://doi.org/10.1109/TPEL.2012.2191798
  7. J. R Pinheiro and I. Barbi, "The three-level ZVS-PWM DC-to-DC converter," 8th International Conference on ECTI-CON, Vol. 2, pp. 637-640, 2011.
  8. H. Sugimura, H. Omori, and S. K. Kwon, "Comparative considerations of soft switching PWM three-level HB dc-dc converter with high frequency link," Power Electronics and ECCE Asia (ICPE&ECCE), pp. 2336-2343, 2011.
  9. X. Ruan, B. Li, Q. Chen, S. C. Tan, C. K. Tse, "Fundamental considerations of three-level DC-DC converters: topologies, analyses, and control," IEEE Transactions on Circuits and System I: Regular Papers, Vol. 55, pp. 3733-3743, 2008. https://doi.org/10.1109/TCSI.2008.927218
  10. Y. Shi, "Full ZVS load range diode clamped three-level DC-DC converter with secondary modulation," Journal of Power Electronics, Vol. 16, No. 1, pp. 93-101, Jan. 2016. https://doi.org/10.6113/JPE.2016.16.1.93
  11. I. O. Lee and G. W. Moon, "Analysis and design of a three-level LLC series resonant converter for high- and wide-input-voltage applications," IEEE Transactions on Power Electronics, Vol. 27, pp. 2966-2979, 2012. https://doi.org/10.1109/TPEL.2011.2174381
  12. B. R. Lin and Z. Y. Chen, "A ZVS resonant converter with balanced flying capacitors," Journal of Power Electronics, Vol. 15, No. 5, pp. 1190-1199, Sep. 2015. https://doi.org/10.6113/JPE.2015.15.5.1190
  13. Z. Guo, D. Sha, and X. Liao, "Hybrid phase-shiftcontrolled three-level and LLC DC-DC converter with active connection at the secondary side," IEEE Transactions on Power Electronics, Vol. 30, pp. 2985-2996, 2015. https://doi.org/10.1109/TPEL.2014.2332352
  14. E. S. Kim, etc, "2014 Industry-university cooperation report," Jeonju University-KACO New Energy Co., Aug. 2015.
  15. E. S. Kim, Y. B. Byun, Y. H. Kim, and Y. G. Hong, "A three level ZVZCS phase-shifted DC-DC converter using a tapped inductor and a snubber capacitor," IEEE APEC, Vol. 2 pp. 980-985, Mar. 2001.