Journal of Power Electronics

The Korean Institute of Power Electronics (전력전자학회)
권호 표지

A High Efficiency and High Power Chopper Circuit QRAS using Soft Switching under Test Evaluation at 8kW

  • Published : 2006.01.01
Download PDF
⟨ Previous Next ⟩

Abstract

This paper is a record of the study on a high efficiency and high power chopper based on the new soft switching method QRAS (Quasi~resonant Regenerating Active Snubber) designed for a Fuel Cell Electric Vehicle (FCEV). This power chopper is basically proposed for 25kHz soft switching. To confirm the practicality and effectiveness of the converter, the fabrication of a prototype-model using IGBTs was completed. Additionally, a 8kW rating test, a light load test, a current discontinuous mode test and a stable operation resonance test was completed. The circuit geometry, the basic operation, and the 8kW one-tenth-prototype test results are reported with a $97.5\%$ efficiency measurement.

Keywords

References

  1. S.Cuk, R.D.Middlebrook: 'Advances on Switched-Mode Power Conversion Part I', IEEE Trans. on Industrial Electronics, VoI.IE-30, NO.1, pp.10-19, February, 1983 https://doi.org/10.1109/TIE.1983.356697
  2. M.Nakamura, T.Myoui, M.Ishitobi, M.Nakaoka: 'A Soft-Switching PWM Boost Chopper Comtrolled DC-DC Converter with A Single Passive Auxiliary Resonant Snubber and Its Performance Evaluations. ', T.IEE Japan, Vol.122-D, No.10, pp.1006-1016, 2002 (in Japanese)
  3. IEEJ: 'Recent development on soft switching', IEEJ Technical Report, No.899, pp. 4-8, September, 2002 (in Japanese)
  4. G.Hua, C.S.Leu, F.C.Lee: 'Novel zero-voltage-transition PWM converters', IEEE Trans. on Power Electronics, Vol.9, NO.2, pp.213-219, March, 1994 https://doi.org/10.1109/63.286814
  5. M.Eguchi, K.Kishimoto, S.Sumiyoshi: 'Present Status and Technical Trend of High Frequency Switching Power Supply System for Small Distributed Photovoltaic/ Fuel-cell Generation', National Convention Record, lEE Japan, [4], symposium [S18], pp.4_S18(21)-4_S18(24)-, March, 2004 (in Japanese)
  6. K.Maikawa, Y.Tsuruta, A.Kawamura: 'Soft Switching Chopper Circuit for high power application', IEEJ/JIASC 2003, No.1-101, pp.477-478, August, 2003 (in Japanese)
  7. M.Kimura, K.Ishizaka, R.Itoh: 'A soft-switched single phase voltage-doubler rectifier configuration', National Convention Record, lEE Japan, [4], pp.93, March, 2004 (in Japanese)