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

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지

A Primary-Side-Assisted Zero-Voltage and Zero-Current Switching Full Bridge DC-DC Converter with Transformer Isolation for Arc Welding

아크 용접에 적합하며 1차 측 보조회로를 사용하는 영전압-영전류 직류-직류 컨버터

  • 전성집 (부경대 전자컴퓨터정보통신공학부) ;
  • 조규형 (한국과학기술원 정보전자공학부)
  • Published : 2000.10.01
Download PDF
⟨ Previous Next ⟩

Abstract

A new primary-side-assisted zero-voltage and zero-current switching full bridge DC-DC converter with transformer isolation is proposed. The auxiliary circuit adopted to assist ZCS for the leading leg is composed of only one small transformer and two diodes. It has a simple and robust structure, and load current control capability even in short circuit conditions. Possibility of magnetic saturation due to asymmetricity of circuits or transient phenomena is greatly reduced, which is a very attractive feature in DC/DC converters with transformer isolation. The power rating of the auxiliary transformer is about 10% of that of the main transformer. Operation of a 12.5KW prototype designed for welding application was verified by experiments.

Keywords

References

  1. J.A. Sabate, V. Vlatkovic, R.B. Ridley, F.C. Lee and B.H. Cho, 'Design Consideration for High-Voltage High-Power Full-Bridge Zero-Voltage Switched PWM Converter,' IEEE Applied Power Electronics Conference(APEC'90), pp. 275-284, 1990 https://doi.org/10.1109/APEC.1990.66420
  2. J.G. Cho, G.H. Rim, and F.C. Lee, 'Zero Current Switching Full Bridge PWM Converter Using Secondary Active Clamp,' IEEE Power Electronics Specialist Conference(PESC' 96), pp.657-663, 1996 https://doi.org/10.1109/PESC.1996.548651
  3. J.G. Cho, J.W. Baek, D.W. Yoo, C.Y. Jeong, H.S. Lee and G.H. Rim, 'Novel Zero-Voltage and Zero-Current Switching(ZVZCS) Full Bridge PWM Converter Transformer Auxiliary Winding,' IEEE Power Electronics Specialist Conference(PESC'97), pp. 227-232, 1998 https://doi.org/10.1109/PESC.1997.616730
  4. E.S. Kim, K.Y. Joe, M.H. Kye, Y.H. Kim and B.D. Yoon,' An Improved soft switching PWM FB DC/DC Converter for Reducing Conduction Losses,' IEEE Power Electronics Specialist Conference(PESC'96), pp. 651-656, 1996 https://doi.org/10.1109/PESC.1996.548650
  5. J.W. Baek, C.Y. Jeong, J.G. Cho, D.W. Yoo, H.S. Lee and G.H. Rim, 'Novel Zero-Voltage and Zero-Current Switching(ZVZCS) Full Bridge PWM Converter with Low Output Current Ripple,' Telecommunications Energy Conference(INTELLEC' 97), pp. 257-262, 1997 https://doi.org/10.1109/INTLEC.1997.645897
  6. J.G. Cho, J.A. Sabste, G. Hua and .F.C. Lee,'Novel Zero-Voltage and Zero-Current IEEE Power Electronics Specialist Conference(PESC'94)Switching Full Bridge PWM Converter for High Power Applications,'IEEE Power Electronics Specialist Conference(PESC'94), pp. 102-108, 1994 https://doi.org/10.1109/PESC.1994.349743
  7. 전성즙, '아크용접에 적합한 영전압영전류방식의 풀브릿지컨버터,' 대한전기학회논문지, Vol.48B, No. 6, pp. 342-348, 1999
  8. S.J. Jeon and G.H. Cho, ' Zero-Voltage and Zero-Current Switching Full Bridge DC-DC Converter for Arc Welding Machines,'IEEE Electronics Letters, Vol. 35, Vo. 13, pp. 1043-1044, 1999 https://doi.org/10.1049/el:19990719
  9. D.C. Martins, F.J.M. Seixas, J.A. Brilhante and I. Barbi, 'A Family of DC-DC PWM Converter Using a New ZVS Communication Cell,' IEEE Power Electronics Specialist Conference(PESC'93), pp. 524-530, 1993 https://doi.org/10.1109/PESC.1993.4719790-7803-1243-0