access icon free Design of high-efficiency non-insulated step-up converters

The design techniques of high-efficiency non-insulated step-up converters were upgraded on the basis of a comprehensive model of power losses, also including several feeble effects whose contribution, although overshadowed at large power by conduction and switching losses, is relevant in the low-power regime and at the maximum power point. The thorough loss analysis was used as a basis to design state-of-art high-boost-ratio three levels neutral-point-clamped dc–dc converters, whose experimental efficiency showed an outstanding agreement with theoretical predictions in a wide range of operating conditions.

Inspec keywords: DC-DC power convertors

Other keywords: three levels neutral point clamped dc dc converters; power losses; maximum power point; high boost ratio dc dc converters; high efficiency noninsulated step up converters; loss analysis

Subjects: DC-DC power convertors

References

    1. 1)
    2. 2)
    3. 3)
      • 20. Pinheiro, J.R., Barbi, I.: ‘The three-level ZVS PWM converter – a new concept in high-voltage DC-to-DC conversion’. Proc. of IEEE Ind. Electron. Soc. Annual Conf., IECON1992, San Diego (CA), USA, November 1992, vol. 1, pp. 173178.
    4. 4)
      • 12. Nan, X., Sullivan, C.R.: ‘An improved calculation of proximity-effect loss in high-frequency windings of round conductors’. Proc. IEEE Power Electron. Spec. Conf., PESC2003, Acapulco, Mexico, June 2003, pp. 853860.
    5. 5)
      • 40. Steinmetz, C.P.: ‘On the law of hysteresis’, Proc. of the IEEE, 1984, 72, (2), pp. 197–221 (Repr. Transactions of the American Institute of Electrical Engineers, 1892, 9, pp. 344369).
    6. 6)
    7. 7)
      • 29. Trescases, O., Wen, Y.: ‘A survey of light-load efficiency improvement techniques for low-power dc-dc converters’. Proc. of IEEE 8th Int. Conf. on Power Electron.and ECCE Asia, ICPE2011&ECCEAsia, Jeju, South Korea, June2011, pp. 326333.
    8. 8)
    9. 9)
      • 9. Takao, K., Adachi, K., Hayashi, Y., Ohashi, H.: ‘Novel power loss limit analysis method for high-speed, ultra-low loss power converter’. Proc. IEEE Power Electron. Spec. Conf., PESC2005, Recife, Brazil, June 2005, pp. 22012207.
    10. 10)
      • 13. Xiao, Y., Shah, H., Chow, T.P., Gutmann, R.J.: ‘Analytical modeling and experimental evaluation of interconnect parasitic inductance on MOSFET switching characteristic’. Proc. IEEE 19th Appl. Power Electron. Conf. and Expo., APEC2004, Anaheim (CA), USA, February 2004, pp. 516521.
    11. 11)
    12. 12)
    13. 13)
    14. 14)
    15. 15)
    16. 16)
      • 30. Du, Y., Zhou, X., Bai, S., Lukic, S., Huang, A.: ‘Review of non-isolated bi-directional DC-DC converters for plug-in hybrid electric vehicle’. Proc. IEEE 25th Appl. Power Electron. Conf. and Expo., APEC2010, Palm Springs (CA), USA, February 2010, pp. 11451151.
    17. 17)
    18. 18)
    19. 19)
      • 14. Havanur, S.: ‘Quasi-clamped Inductive Switching behaviour of power MOSFETs’. Proc. IEEE Power Electron. Spec. Conf., PESC2008, Island of Rhodes, Greece, June 2008, pp. 43494354.
    20. 20)
    21. 21)
    22. 22)
    23. 23)
    24. 24)
      • 39. Macellari, M., Schirone, L.: ‘Switching losses in low-voltage TLNPC step-up converters’. Proc. of 39th Annual Conf. of IEEE Ind. Electron. Soc., IECON2013, Vienna, Austria, November 2013, pp. 13371342.
    25. 25)
    26. 26)
    27. 27)
    28. 28)
    29. 29)
    30. 30)
    31. 31)
    32. 32)
    33. 33)
    34. 34)
    35. 35)
    36. 36)
    37. 37)
    38. 38)
      • 36. Nymand, M.: ‘High efficiency power converter for low voltage high power applications’, PhD thesis, Univ. Denmark, Kgs. Lyngby, Denmark, 2010.
    39. 39)
    40. 40)
    41. 41)
    42. 42)
    43. 43)
http://iet.metastore.ingenta.com/content/journals/10.1049/iet-pel.2014.0554
Loading

Related content

content/journals/10.1049/iet-pel.2014.0554
pub_keyword,iet_inspecKeyword,pub_concept
6
6
Loading