DOI QR코드

DOI QR Code

Design of a Novel Integrated L-C-T for PSFB ZVS Converters

  • Tian, Jiashen (Faculty of Information, Beijing University of Technology) ;
  • Gao, Junxia (Faculty of Information, Beijing University of Technology) ;
  • Zhang, Yiming (Faculty of Information, Beijing University of Technology)
  • Received : 2017.01.03
  • Accepted : 2017.05.12
  • Published : 2017.07.20

Abstract

To enhance the zero-voltage switching (ZVS) range and power density of the phase-shift full-bridge (PSFB) ZVS converters used in geophysical exploration, an additional resonant inductor is used as a leakage inductance and a blocking capacitor which is equivalent to interlayer capacitance is integrated into a novel integrated inductor-capacitor-transformer (L-C-T). The leakage inductance and equivalent interlayer capacitance of the novel integrated L-C-T are difficult to determine by conventional methods. To address this issue, this paper presents accurate and efficient methods to compute the leakage inductance and equivalent interlayer capacitance. Moreover, the accuracy of this methodology, which is based on electromagnetic energy and Lebedev's method, is verified by an experimental analysis and a finite element analysis (FEA). Taking the problems of the novel integrated L-C-T into consideration, the losses of the integrated L-C-T are analyzed and the temperature rise of the integrated L-C-T is determined by FEA. Finally, a PSFB ZVS converter prototype with the novel integrated L-C-T is designed and tested.

References

  1. G. N. B. Yadav and N. L. Narasamma, "An active soft switched phase-shifted full-bridge DC-DC converter: Analysis, modeling, design, and implementation," IEEE Trans. Power Electron., Vol. 29, No. 9, pp. 4538-4550, Sep. 2014. https://doi.org/10.1109/TPEL.2013.2284780
  2. S. H. Lee, C. Y. Park, J. M. Kwon, B.-H. Kwon, "Hybrid-type full-bridge dc/dc converter with high efficiency," IEEE Trans. Power Electron., Vol. 30, No. 8, pp.4156-4164, Aug. 2015. https://doi.org/10.1109/TPEL.2014.2360404
  3. K. Shi, D. Zhang, Z. Zhou, M. Zhang, and Y. Gu, "A novel phase-shift dual full-bridge converter with full soft-switching range and wide conversion range," IEEE Trans. Power Electron., Vol. 31, No.11, pp. 7747-7760, Nov. 2016. https://doi.org/10.1109/TPEL.2015.2512848
  4. Y. Jiang, Z. Chen, and J. Pan, "Zero-voltage switching phase shift full-bridge step-up converter with integrated magnetic structure," IET Power Electron., Vol. 3, No. 5, pp.732-739, Dec. 2009. https://doi.org/10.1049/iet-pel.2009.0217
  5. Y. Jang, M. M. Jovanovic, and Y. M. Chang, "A new zvs-pwm full-bridge converter," IEEE Trans. Power Electron., Vol. 18, No. 5, pp. 232-239, Sep. 2002.
  6. K. U. Member, "A generalized method for lagrangian modeling of power conversion circuit with integrated magnetic components," IEEJ Trans. Electr. Electron., Vol. 7, No. S1, pp. 146-152, 2012. https://doi.org/10.1002/tee.21816
  7. K. Umetani, S. Arimura, T. Hirano, J. Imaoka, M. Yamamoto, "Evaluation of the Lagrangian method for deriving equivalent circuits of integrated magnetic components: A case study using the integrated winding coupled inductor," IEEE Trans. Ind. Appl., Vol. 51, No. 1, pp.547-555, Jan/Feb. 2015. https://doi.org/10.1109/TIA.2014.2330071
  8. M. Pahlevani, S. Eren, A. Bakhshai, and P. Jain, "A series-parallel current-driven full-bridge dc/dc converter," IEEE Trans. Power Electron., Vol. 31, No. 2, pp. 1275-1293, Feb. 2016. https://doi.org/10.1109/TPEL.2015.2417773
  9. N. Zhu, J. D. van Wyk, and F. Wang, "Design of integrated parallel resonant transformers," in IEEE Power Electronics Specialists Conference, pp. 1787-1792, 2005.
  10. J. T. Strydom, J. D. van Wyk, and J. A. Ferreira, "Some limits of integrated L-C-T modules for resonant converters at 1MHz," IEEE Trans. Ind. Appl,. Vol. 37, No. 3, pp. 820-828, May/Jun. 2001. https://doi.org/10.1109/28.924764
  11. J. T. Strydom, "Electromagnetic design of integrated resonator-transformers," PhD. Thesis, Rand Afrikaans University, 2001.
  12. W. Liu, "Alternative structures for integrated electromagnetic passives," PhD. Thesis, Virginia Tech., 2006.
  13. Z. Ouyang, J. Zhang, and W. G. Hurley, "Calculation of leakage inductance for high-frequency transformers," IEEE Trans. Power Electron., Vol. 30, No. 10, pp. 5769-5775, Oct. 2015. https://doi.org/10.1109/TPEL.2014.2382175
  14. M. A. Bahmani and T. Thiringer, "Accurate evaluation of leakage inductance in high-frequency transformers using an improved frequency-dependent expression," IEEE Trans. Power Electron., Vol. 30, No. 10, pp. 5738-5745, Oct. 2015. https://doi.org/10.1109/TPEL.2014.2371057
  15. R. Doebbelin, C. Teichert, M. Benecke, and A. Lindemann, "Computerized calculation of leakage inductance values of transformers," Piers Online, Vol. 5, No. 8, pp. 721-726, Aug. 2009.
  16. R. Chen, J. T. Strydom, J. D. van Wyk, "Design of planar integrated passive module for zero-voltage-switched asymmetrical half-bridge PWM converter," IEEE Trans. on Ind. Appl., Vol. 39, No. 6, pp. 1648-1655, Nov/Dec. 2003. https://doi.org/10.1109/TIA.2003.818970
  17. I. W. Hofsajer, J. A. Ferreira, J. D. van Wyk, "Design and analysis of planar integrated LCT components for converters," IEEE Trans. Power Electron., Vol. 15, No. 6, pp. 1221-1227, Nov. 2000.
  18. M. C. Smit, J. A. Ferreira, J. D. Van Wyk, and M. Ehsani, "An ultrasonic series resonant converter with integrated LCT," IEEE Trans. Power Electron., Vol. 10, No. 1, pp. 25-31, Jan. 1995.
  19. P. A. J. van Rensburg, J. D. van Wyk, and J. A. Ferreira, "Design, prototyping and assessment of a 3 kW integrated LCT component for deployment in various resonant converters," IET Power Electron., Vol. 2, No. 5, pp. 535-544. Aug. 2008. https://doi.org/10.1049/iet-pel.2008.0151
  20. Y. Lembeye, P. Goubier, and J. P. Ferrieux, "Integrated planar l-c-t component: design, characterization and experimental efficiency analysis," IEEE Trans. Power Electron., Vol. 20, No. 3, pp. 593-599, May. 2005. https://doi.org/10.1109/TPEL.2005.846558
  21. L. Dalessandro, F. S. Cavalcante, and J. W. Kolar, "Self-capacitance of high-voltage transformers," IEEE Trans. Power Electron., Vol. 22, No. 5, pp.2081-2092, Sep. 2007. https://doi.org/10.1109/TPEL.2007.904252
  22. J. Biela and J. W. Kolar, "Using transformer parasitics for resonant converters-A review of the calculation of the stray capacitance of transformers," IEEE Trans. Ind. Appl., Vol. 44, No. 1, pp.223-233, Jan. 2008. https://doi.org/10.1109/TIA.2007.912722
  23. A. Pressman, Switching Power Supply Design, Chap.3, McGraw-Hill, 2009.
  24. V. K. Lebedev, "Calculation of the short-circuit resistance of welding transformers with yoke leakage (russ.)," Automatic Welding, Vol. 11, No. 4, pp. 37-44, 1958.
  25. R. Doebbelin, M. Benecke, and A. Lindemann, "Calculation of leakage inductance of core-type transformers for power electronic circuits," in Proc. Power Electronics and Motion Control Conf., pp. 1280-1286, 2008.
  26. C. W. T. Mclyman, Transformer and Inductor Design Handbook, Chap.7/8, M. Dekker, 1978.