The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
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Development of Robust Algorithm to Eliminate Low Frequency Current Ripples in Fuel Cell Generation System

동적변화에 강인한 연료전지 발전시스템의 저주파 리플전류 제거 알고리즘 개발

  • 김종수 (성균관대학교 정보통신공학부) ;
  • 강현수 ((주) 에이디티) ;
  • 최규영 (성균관대학교 정보통신공학부) ;
  • 이병국 (성균관대학교 정보통신공학부)
  • Published : 2009.09.01
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Abstract

This paper presents that generation and propagation mechanism of low frequency current ripples generated by a rectification effect of an inverter in fuel cell generation system is analyzed. The ripple reduction methode using hardware components such as capacitors and inductors is examined to reduce low frequency current ripples. A new fast and robust low frequency current ripple elimination algorithm is then proposed to incorporate a single loop current controller, which directly controls fuel cell current, without any extra hardware. The proposed algorithm can completely eliminate this current ripple as well as an overshoot or undershoot is significantly reduced. And the de link voltage and output current are well regulated by inverter controller. The validity of proposed algorithm is verified both computer simulation using PSIM 6.0 and experiment with a 1kW laboratory prototype.

Keywords

References

  1. D. K. Choi, B. K. Lee, S. W. Choi, and C. Y. Won, 'A novel power conversion circuit for cost effective battery-fuel cell hybrid systems,' J of Power Sources, vol. 152(2005), pp. 245-255, 2005 https://doi.org/10.1016/j.jpowsour.2005.01.050
  2. G. Fontes, C. Turpin, R. Saisset, T. Meynard, and S. Astier, 'Interactions between fuel cells and power converters influence of current harmonics on a fuel cell stack,' in Proc. IEEE Power Electronics Specialists Conf., Aachen, Germany, pp. 4729-4735, Jun. 2004 https://doi.org/10.1109/PESC.2004.1354835
  3. J. S. Kim, G. Y. Choe, H. S. Kang, B. K. Lee, and W. Y. Lee, 'Comparative analysis of PCS for fuel cell systems considering low frequency current ripple,' in Proc. Fuel Cell Seminar, San Antonio, TX, Oct. 2007
  4. R. S. Gemmen, 'Analysis for the effect of inverter ripple current on fuel cell operating condition,' J Fluids Eng., vol. 125, pp. 576-585, May 2003 https://doi.org/10.1115/1.1567307
  5. W. J. Choi, J. W. Howze, and P. Enjeti, 'Development of an equivalent circuit model of a fuel cell to evaluate the effects of inverter ripple current,' J of Power Sources, vol. 158(2006), pp. 1324-1332, 2006 https://doi.org/10.1016/j.jpowsour.2005.10.038
  6. Z. H. Wang, C. Y. Wang, and K. S. Chen, 'Two-phase flow and transport in the air cathode of proton exchange membrane fuel cells,' J of Power Sources, vol. 94(2001), pp. 40-50, 2001 https://doi.org/10.1016/S0378-7753(00)00662-5
  7. Fuel Cell Handbook, 7th ed., EG&G Technical service, Inc U.S. Department of Energy, 2004 (Chapter #8)
  8. Ballard Nexa${\circledR}$ Power module User's Manual
  9. M. Schenck, K. Stanton and J. S. Lai, 'Fuel cell and power conditioning system interactions,' in Proc. IEEE Applied Power Electronics Conf., Austin, TX, pp. 114-120, Mar. 2005
  10. Y. J. Song, S. G. Chung, and P. N. Enjeti, 'A current-fed HF link direct dc/ac converter with active harmonics filter for fuel cell power systems,' in Proc. IEEE Industrial Applications Conf., Seattle, WA, vol. 1, pp. 123-128, Oct. 2004 https://doi.org/10.1109/IAS.2004.1348397
  11. Y. J. Song, S. B. Han, X. Li, S. I. Park, H. G. Jeong and B. M. Jung, 'A power control scheme to improve the performance of a fuel cell hybrid power source for residential application,' in Proc. IEEE Power Electronics Specialists Conf., Orlando, FL, pp. 1261-1266,June. 2007 https://doi.org/10.1109/PESC.2007.4342174
  12. C. Liu and J. S. Lai, 'Low frequency current ripple reduction technique with active control in a fuel cell power system with inverter load,' IEEE Trans. Power Electron., vol. 22, no. 4, pp. 1429-1436, July 2007 https://doi.org/10.1109/TPEL.2007.900594
  13. 김동희, 김종수, 최규영, 이병국, 'PCS 회로 및 수동소자에 따른 저주파 리플전류 분석,' 대한전기학회 춘계학술대회, pp. 234-236, 삼척, 4월, 2007