The Transactions of the Korean Institute of Electrical Engineers B (대한전기학회논문지:전기기기및에너지변환시스템부문B)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지

An Improved High Efficiency Resonant Converter for the Contactless Power Supply with a Low Coupling Transformer

낮은 커플링 변압기를 갖는 비접촉 전원의 개선된 고효율 공진 컨버터

  • 공영수 (전주대 공대 전기전자공학과) ;
  • 김은수 (전주대 공대 전기전자공학과) ;
  • 이현관 (전주대 공대 전기전자공학과)
  • Published : 2005.02.01
Download PDF
⟨ Previous Next ⟩

Abstract

Comparing with the conventional transformer without the air gap, a contactless transformer with the large air gap between the long primary winding and the secondary winding has increased leakage inductance and reduced magnetizing inductance. For transferring the primary power to the secondary one, the high frequency series resonant converter has been widely used for the contactless power supply system with the large air gap and the increased leakage inductance of the contactless transformer However, the high frequency series resonant converter has the disadvantages of the low efficiency and high voltage gain characteristics in the overall load range due to the large air gap and the circulating magnetizing current. In this paper, the characteristics of the high efficiency and unit voltage gain are revealed in the proposed three-level series-parallel resonant converter. The results are verified on the simulation based on the theoretical analysis and the 5kW experimental prototype.

Keywords

References

  1. Robert L. Steigerward, 'A Comparison of Half~Bridge Resonant Converter Topologies', IEEE Trans, PE, 1988 https://doi.org/10.1109/63.4347
  2. G. B. Joung, and B. H. Cho, 'An Energy Transmission System for an Artificial Heart Using Leakage Inductance Compensation of Transcutaneous Transformer', in IEEE Trans, PE, Vol. 13, 1998 https://doi.org/10.1109/63.728328
  3. C. G. Kim, D. H. Seo, J. S. You, J. H. Park, and B. H. Cho, 'Design of a Contactless Battery Charger for Cellular Phone', IEEE Trans, Industrial Electronics, Vol. 48, 200l https://doi.org/10.1109/41.969404
  4. A. Ghahary, and B. H. Cho, 'Design of a Transcutaneous Energy Transmission System Using a Series Resonent Converter', in IEEE Power Electronics Specialists Conf. Rec., 1990, pp.1-8 https://doi.org/10.1109/PESC.1990.131165
  5. T. H. Nishimura, K. Hirachi, Y. Maejima, K. Kuwana, and M. Saito, 'Charateristic of a Novel Energy Transmission For a Rechargeble Cardiac Pacemaker By Using a Resonant DC-DC Converter', in Proc. IEEE IECON '93, Vol. 2, 1993, pp.875-880 https://doi.org/10.1109/IECON.1993.339160
  6. C. Chakraborty, M. Ishida, and Y. Hori, 'Novel Half-Bridge Resonant Converter Topology Realized by Adjusting Transformer Parameters', IEEE Trans, Industrial Electronics, Vol. 49, NO.1, 2002 https://doi.org/10.1109/41.982263
  7. E.S Kim, B.Y Byun, Y.H Kim, Y.G Hong, 'A Three Level ZVZCS Phase-Shifted DC/DC Converter Using A Tapped Inductor And A Snubber Capacitor', IEEE APEC, 2001.3, pp. 980-985 https://doi.org/10.1109/APEC.2001.912486