Journal of Power Electronics

The Korean Institute of Power Electronics (전력전자학회)
권호 표지
DOI QR코드

DOI QR Code

Direct Current Control Method Based On One Cycle Controller for Double-Frequency Buck Converters

  • Luo, Quanming (State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University) ;
  • Zhi, Shubo (State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University) ;
  • Lu, Weiguo (State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University) ;
  • Zhou, Luowei (State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University)
  • Received : 2011.02.08
  • Published : 2012.05.20
Download PDF
⟨ Previous Next ⟩

Abstract

In this paper, a direct current control method based on a one-cycle controller (DCOCC) for double frequency buck converters (DF buck) is proposed. This control method can make the average current through the high frequency and low frequency inductors of a DF buck converter equal. This is similar to the average current control method. However, the design of the loop compensator is much easier when compared with the average current control. Since the average current though the high frequency and low frequency inductors is equivalent, the current stress of the high frequency switches and the switch losses are minimized. Therefore, the efficiency of the DF buck converter is improved. Firstly, the operation principle of DCOCC is described, then the small signal models of a one cycle controller and a DF buck converter are presented based on the state space average method. Eventually, a system block diagram of the DCOCC controlled DF buck is established and the compensator is designed. Finally, simulation and experiment results are given to verify the correction of the theory analysis.

Keywords

References

  1. G. Hua and F. C. Lee, "Soft-switching techniques in pwm converters," IEEE Trans. Power Electron., Vol. 42, No. 6, pp. 595-603, Dec.1995.
  2. K. M. Smith Jr. and K. M. Smedley, "Properties and synthesis of lossless, passive soft switching converters," in Proc. 1st Int. Congr. Israel Energy, Power Motion Contr., pp. 112-119, May 1997.
  3. K. M. Smith Jr. and K. M. Smedley, "Lossless passive soft switching methods for inverters and amplifiers," in Proc. Power Electron. Spec. Conf., pp. 1431-1439, 1997.
  4. X. Ruan and Y. Yan, "Soft-switching techniques for pwm full bridge converters," in Proc. Power Electron. Spec. Conf., pp. 18-23, 2000.
  5. T.-F. Wu, S.-A. Liang, and Y.-K. Chen, "A structural approach to synthesizing soft switching pwm converters," IEEE Trans. Power Electron., Vol. 18, No. 1, pp. 38-43, Jan. 2003. https://doi.org/10.1109/TPEL.2002.807180
  6. X. Du, L. Zhou, and H.-M. Tai, "Double-frequency buck converter," IEEE Trans. Ind. Electron., Vol. 56, No. 5, pp. 1690-1698, May 2009. https://doi.org/10.1109/TIE.2009.2013752
  7. K. M. Smedly and S. Cuk, "One-cycle control of switching converters," IEEE Trans. Power Electron., Vol. 10, No. 6, pp. 625-633, Nov.1995. https://doi.org/10.1109/63.471281
  8. R. W. Erickson and D. Maksimovic, Fundamentals of power electronics, Second Edition, Kluwer Academic Publishers Group, 2001.
  9. W. Tang, F. C. Lee, and R. B. Ridley, "Small-signal modeling of average current-mode control," IEEE Trans. Power Electron., Vol. 8, No. 2, pp. 112-119, Nov. 1993. https://doi.org/10.1109/63.223961
  10. F. D. Tan and R. D. Middlebrook, "A unified model for current-programmed converters," IEEE Trans. Power Electron., Vol. 10, No. 4, pp. 397-408, Jul. 1995. https://doi.org/10.1109/63.391937
  11. Y. Liu and P. C. Sen, "Large-signal modeling of hysteretic current-programmed converters," IEEE Trans. Power Electron., Vol. 11, No. 3, pp. 423-430, May 1996. https://doi.org/10.1109/63.491635

Cited by

  1. Modeling and Analysis of the Fractional Order Buck Converter in DCM Operation by using Fractional Calculus and the Circuit-Averaging Technique vol.13, pp.6, 2013, https://doi.org/10.6113/JPE.2013.13.6.1008
  2. Average and Small Signal Modeling of Negative-Output KY Boost Converter in CCM Operation vol.2014, 2014, https://doi.org/10.1155/2014/810956
  3. Stability Aspects in One-Cycle Controlled Buck Converters vol.14, pp.1, 2014, https://doi.org/10.4316/AECE.2014.01007
  4. Development of Robust Discrete controller for Double Frequency Buck converter vol.56, pp.3, 2015, https://doi.org/10.7305/automatika.2015.12.647