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A Novel Prototype of Duty Cycle Controlled Soft-Switching Half-Bridge DC-DC Converter with Input DC Rail Active Quasi Resonant Snubbers Assisted by High Frequency Planar Transformer

  • Fathy, Khairy (Electrical Energy Saving Research Center(EESRC) Dept. of Electrical Engineering, Kyungnam University) ;
  • Morimoto, Keiki (Daihen Corporation) ;
  • Suh, Ki-Young (Dept. of Electrical Engineering, Kyungnam University) ;
  • Kwon, Soon-Kurl (Electrical Energy Saving Research Center(EESRC) Dept. of Electrical Engineering, Kyungnam University) ;
  • Nakaoka, Mutsuo (Industrial College of Technology University)
  • 발행 : 2007.03.01

초록

This paper presents a new circuit topology of active edge resonant snubbers assisted half-bridge soft switching PWM inverter type DC-DC high power converter for DC bus feeding power plants. The proposed DC-DC power converter is composed of a typical voltage source-fed half-bridge high frequency PWM inverter with a high frequency planar transformer link in addition to input DC busline side power semiconductor switching devices for PWM control scheme and parallel capacitive lossless snubbers. The operating principle of the new DC-DC converter treated here is described by using switching mode equivalent circuits, together with its unique features. All the active power switches in the half-bridge arms and input DC buslines can achieve ZCS turn-on and ZVS turn-off commutation transitions. The total turn-off switching losses of the power switches can be significantly reduced. As a result, a high switching frequency IGBTs can be actually selected in the frequency range of 60 kHz under the principle of soft switching. The performance evaluations of the experimental setup are illustrated practically. The effectiveness of this new converter topology is proved for such low voltage and large current DC-DC power supplies as DC bus feeding from a practical point of view.

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참고문헌

  1. S. Hamada, M. Nakaoka, 'Saturable Inductor-Assisted ZVS-PWM Full-Bridge High-Frequency Link DC-DC Power Converter Operating and Conduction Losses', Proceedings of IEE-UK International Conference on Power Electronics and Variable-Speed Drives, October 1994, pp. 483-488
  2. O. D .Patterson and D. M. Divan, 'Pseudo-Resonant Full Bridge DC/DC Converter', Records of IEEE-PESC, pp. 424-430, June, 1987
  3. Robert L. Steigerwald, 'A Comparison of Half-Bridge Resonant Converter Topologies', IEEE Tran. on Power Electronics, Vol. 3, No. 2, April 1988
  4. Chae, Y.-M., Gho, J.-S., Choe, G.-H., Shin, W.-S., Choi, J.-Y.,' PWM converter-inverter arc welding machine using new type NCT', in Proceedings of IEEE Power Electronics Specialists Conference, PESC 98 ,Volume 2, 17-22, May 1998, pp. 1636 - 1641
  5. M. Michihira, M. Nakaoka, 'A Novel Quasi-Resonant DC-DC converter Using Phase –Shift Modulation in Secondary Side of High Frequency Transformer', Records of IEEE-PELS power Electronics Specialists Conference PESC, June 1996, Vol. 1, pp. 100-105
  6. K. Morimoto, T. Doi, H. Manabe, M. Nakaoka, H.W. Lee, 'Advanced High Power DC-DC Converter using Novel Type Full-Bridge Soft-Switching PWM Inverter with High Frequency Transformer Link for Arc Welding Application', Proceedings of ICPE, pp.II191-II197, October, 2004
  7. Verdelho, P., Pio Silva, M., Margato, E., Esteves, J., ' An electronic welder control circuit', Proceedings of International Conference of the IEEE Industrial Electronics Society, IECON, Sept. 1998, Vol. 2 pp. 612 – 617
  8. Sabate, J.A.; Vlatkovic, V.; Ridley, R.B.; Lee, F.C.; Cho, B.H.; 'Design considerations for high-voltage high-power full-bridge zero-voltage-switched PWM converter', Proceedings Applied Power Electronics Conference and Exposition, APEC '90, pp. 275 – 284, March 1990
  9. Hong Mao, Jaber Abu-Qahouq, Shiguo Luo, and Issa Batarseh,' Zero-Voltage-Switching Half-Bridge DC–DC Converter With Modified PWM Control Method', IEEE Transactions on Power Electronics, Vol. 19, No. 4, July 2004
  10. Heldwein, M.L.; Ferrari de Souza, A.; Barbi, I.; 'A primary side clamping circuit applied to the ZVS-PWM asymmetrical half-bridge converter', Proceedings of Power Electronics Specialists Conference, PESC 2000, Vol. 1, pp. 199 – 204, June 2000