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

The Korean Institute of Power Electronics (전력전자학회)
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The Design and Applications of LCC Resonant Converter

LCC 공진형 컨버터를 적용한 산업용 전원장치 응용연구

  • Ahn, Suk-Ho (Electric Propulsion Research Center, Korea, Electrotechnology Research Institute) ;
  • Jang, Sung-Roc (Electric Propulsion Research Center, Korea, Electrotechnology Research Institute) ;
  • Ryoo, Hong-Je (School of Energy Systems Engineering, Chung-Ang University)
  • Received : 2015.09.01
  • Accepted : 2015.11.09
  • Published : 2015.12.20
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Abstract

This study introduces an LCC resonant converter operating on a continuous conduction mode. The LCC resonant converter has the advantage of improving system efficiency, especially under the rated load condition, because it can reduce conduction loss by improving the resonance current shape and switching loss by increasing the lossless snubber capacitance. The proposed LCC resonant converter is applied to various applications, including a 60 kW EV fast charger, a 24 kJ/s high-voltage capacitor charger, and a 20 kV, 20 kW high-precision DC power supply. Experimental results prove that the proposed LCC resonant converter topology can be effectively used as a converter topology for these applications.

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References

  1. S. H. Ahn, J. W. Gong, S. R. Jang, H. J. Ryoo, and D. H. Kim, “Design and implementation of enhanced resonant converter for EV fast charger,” Journal of Electrical Engineering & Technology, Vol. 9, No. 1, pp. 143-153, Jan, 2015. https://doi.org/10.5370/JEET.2014.9.1.143
  2. S. H. Ahn, H. J. Ryoo, J. W. Gong, and S. R. Jang, “Low-ripple and high-precision high-voltage DC power supply for pulsed power applications,” IEEE Transactions on Plasma Science, Vol. 42, No. 10, pp. 3023-3033, Oct. 2014. https://doi.org/10.1109/TPS.2014.2333813
  3. S. H. Ahn, H. J. Ryoo, J. W. Gong, and S. R. Jang, “Design and test of a 35-kJ/s high-voltage capacitor charger based on a delta-connected three-phase resonant converter,” IEEE Transactions on Power Electronics, Vol. 29, No. 8, pp. 4039-4048, Aug. 2014. https://doi.org/10.1109/TPEL.2013.2287709
  4. J. W. Gong, H. J. Ryoo, S. H. Ahn, and S. R. Jang, “Design and implementation of a 40-kV, 20-kJ/s capacitor charger for pulsed-power application,” IEEE Transactions on Plasma Science, Vol. 42, No. 11, pp. 3623-3632, Nov. 2014. https://doi.org/10.1109/TPS.2014.2344315
  5. H. J. Ryoo, S. H. Ahn, J. W. Gong, and S. R. Jang, “Design and comparison of capacitor chargers for solid-state pulsed power modulator,” IEEE Transactions on Plasma Science, Vol. 41, No. 10, pp. 2675-2683, Oct. 2013. https://doi.org/10.1109/TPS.2013.2277879
  6. H. J. Ryoo, S. R. Jang, Y. S. Jin, J. S. Kim, Y. B. Kim, S. H. Ahn, J. W. Gong, B. H. Lee, and D. H. Kim, “Design of high voltage capacitor charger with improved efficiency, power density and reliability,” IEEE Transactions on Dielectrics and Electrical Insulation, Vol. 20, No. 4, pp. 1076-1084, Aug. 2013. https://doi.org/10.1109/TDEI.2013.6571420
  7. S. H. Ahn, "The Design and Application of Novel High-efficiency Series-parallel Resonant Converter," Ph. D. Dissertation, University of Science & Technology, 2015.