access icon free ZVT high step-up DC/DC converter with a novel passive snubber cell

A zero voltage turn-off high step-up DC/DC converter is presented. The conversion efficiency and power density are improved significantly by using a novel passive snubber cell, which only consists of two diodes and a snubber capacitor. The converter also provides high-voltage conversion ratio as well as low-voltage stress on switches and diodes, which make it suitable for some special industrial applications as electric-vehicle, uninterruptible power supply system or photovoltaic power generation system. The topology, operation principles and performance characteristics are analysed in detail. Moreover, a maximum 800 W experimental prototype has been developed to validate the effectiveness of the theoretical analysis, and 96.2% efficiency has been achieved.

Inspec keywords: DC-DC power convertors; diodes; snubbers

Other keywords: photovoltaic power generation system; uninterruptible power supply system; zero voltage turn-off high step-up DC/DC converter; passive snubber cell; power density; theoretical analysis; ZVT high step-up DC/DC converter; power 800 W; snubber capacitor

Subjects: DC-DC power convertors

References

    1. 1)
      • 5. Wang, D., He, X., Zhao, R.: ‘ZVT interleaved boost converters with built-in voltage doubler and current auto-balance characteristic’, IEEE Trans. Ind. Electron., 2008, 23, (6), pp. 28472854.
    2. 2)
      • 20. Zhao, Q., Zhang, J., Zhao, C.: ‘Passive lossless snubber for CCM PFC based on magnetic coupling’. Electrical Machines and Systems (ICEMS), International Conf. on, Beijing, 2011, pp. 16.
    3. 3)
      • 29. Evran, F., Aydemir, M.T.: ‘Isolated high step-Up DC–DC converter with low voltage stress’, IEEE Trans. Power Electron., 2014, 29, (7), pp. 35913603.
    4. 4)
      • 19. Bodur, H., Yesilyurt, H., Ozel, H.: ‘An improved lossless passive snubber cell for PFC boost converter’. Electric Power and Energy Conversion Systems, 2013, pp. 16.
    5. 5)
      • 22. Li, W., He, X.: ‘ZVT interleaved boost converters for high-efficiency, high-step-up DC/DC conversion’, IET Electr. Power Appl., 2007, 1, (2), pp. 284290.
    6. 6)
      • 16. Yun, J.-J., Choe, H.-J., Hwang, Y.-H., et al: ‘Improvement of power-conversion efficiency of a DC–DC boost converter using a passive snubber circuit’, IEEE Trans. Ind. Electron., 2012, 59, pp. 18081814.
    7. 7)
      • 6. Park, S., Choi, S.: ‘Soft-switched CCM boost converters with high voltage gain for high-power applications’, IEEE Trans. Power Electron., 2010, 25, (5), pp. 12111217.
    8. 8)
      • 17. Tseng, C.-J., Chen, C.-L.: ‘A passive lossless snubber cell for nonisolated PWM DC/DC converters’, IEEE Trans. Ind. Electron., 1998, 45, pp. 593601.
    9. 9)
      • 1. Zhao, Y., Li, W., Deng, Y., et al: ‘High step-up boost converter with passive lossless clamp circuit for non-isolated high step-up applications’, IET Electric Power Electron., 2011, 4, (8), pp. 851859.
    10. 10)
      • 4. Lin, B.-R., Jhong, J.-Y.: ‘Implementation of a soft switching DC/DC converter without reverse recovery loss for rectifier diodes’, IET Power Electron., 2013, 6, pp. 108116.
    11. 11)
      • 24. Li, W., Li, W., He, X., et al: ‘General derivation law of nonisolated high-step-up interleaved converters with built-in transformer’, IEEE Trans. Power Electron., 2012, 59, (3), pp. 16501661.
    12. 12)
      • 23. Lee, S., Kim, P., Choi, S.: ‘High step-up soft-switched converters using voltage multiplier cells’, IEEE Trans. Power Electron., 2013, 28, (7), pp. 33793387.
    13. 13)
      • 7. Park, S.H., Park, S.R., Yu, J.S., et al: ‘Analysis and design of a soft switching boost converter with an HI-bridge auxiliary resonant circuit’, IEEE Trans. Power Electron., 2010, 25, pp. 21422149.
    14. 14)
      • 14. Bodur, H., Bakan, A.F.: ‘A new ZVT-ZCT-PWM DC–DC converter’, IEEE Trans. Power Electron., 2004, 19, (3), pp. 676684.
    15. 15)
      • 11. Tseng, C.-L., Chen, C.-L.: ‘Novel ZVT PWM converters with active snubbers’, IEEE Trans. Power Electron., 1998, 13, (5), pp. 861869.
    16. 16)
      • 13. Martins, M.L., Pinheiro, H., Pinheiro, J.R., et al: ‘Family of improved ZVT PWM converters using a self-commutated auxiliary network’, IEE Proc. Electr. Power Appl., 2003, 150, pp. 680688.
    17. 17)
      • 18. He, J.: ‘An improved energy recovery soft-switching turn-on/off passive boost snubber with peak voltage clamp’, IEEE APEC, 2000, 2, pp. 699706.
    18. 18)
      • 26. Lin, B.R., Dong, J.Y.: ‘New zero-voltage switching DC–DC converter for renewable energy conversion systems’, IET Power Electron., 2012, 5, (4), pp. 393400.
    19. 19)
      • 15. Kim, Y.-W., Kim, J.-H., Choi, K.-Y., et al: ‘A novel soft-switched auxiliary resonant circuit of a PFC ZVT-PWM boost converter for an integrated multichip power module fabrication’, IEEE Trans. Power Electron., 2013, 49, (6), pp. 28022809.
    20. 20)
      • 9. Moschopoulos, G., Jain, P., Joós, G.: ‘A novel zero-voltage switched PWM boost converter’. Power Electronics Specialists Conf. (PESC) Record, 1995, pp. 694700.
    21. 21)
      • 12. Zhu, J.Y., Ding, D.: ‘Zero voltage and zero current switched PWM DC–DC converter using active snubber’, IEEE Trans. Industry Appl., 1999, 35, (6), pp. 14061412.
    22. 22)
      • 28. Zhou, L.-W., Zhu, B.-X., Luo, Q.-M., et al: ‘Interleaved non-isolated high step-up DC/DC converter based on the diode–capacitor multiplier’, IET Power Electron., 2014, 7, (2), pp. 390397.
    23. 23)
      • 3. Hwu, K.I., Yau, Y.T.: ‘High step-up converter based on charge pump and boost converter’, IEEE Trans. Power Electron., 2012, 27, (5), pp. 24842494.
    24. 24)
      • 8. Bauman, J., Kazerani, M.: ‘A novel capacitor-switched regenerative snubber for DC/DC boost converters’, IEEE Trans. Ind. Electron., 2011, 58, (2), pp. 514523.
    25. 25)
      • 27. Seong, H.-W., Kim, H.-S., Park, K.-B., et al: ‘High step-up dc–dc converters using zero-voltage switching boost integration technique and light-load frequency modulation control’, IEEE Trans. Power Electron., 2012, 27, (3), pp. 13831400.
    26. 26)
      • 2. Newlin, D.J.S., Ramalakshmi, R., Rajasekaran, S.: ‘A performance comparison of interleaved boost converter and conventional boost converter for renewable energy application’. IEEE International Conf. on Green High Performance Computing (ICGHPC), 2013, pp. 16.
    27. 27)
      • 21. Li, W., Xiang, X., Li, C., et al: ‘Interleaved high step-up ZVT converter with built-in transformer voltage doubler cell for distributed PV generation system’, IEEE Trans. Power Electron., 2013, 28, (1), pp. 300313.
    28. 28)
      • 25. Lee, K.-J., Park, B.-G., Kim, R.-Y., et al: ‘Nonisolated ZVT twoinductor boost converter with a single resonant inductor for high step-up applications’, IEEE Trans. Power Electron., 2012, 27, (4), pp. 19661973.
    29. 29)
      • 10. Huang, W., Moschopoulos, G.: ‘A new family of zero-voltage-transition PWM converters with dual active auxiliary circuits’, IEEE Trans. Power Electron., 2006, 21, (2), pp. 370379.
http://iet.metastore.ingenta.com/content/journals/10.1049/iet-pel.2016.0517
Loading

Related content

content/journals/10.1049/iet-pel.2016.0517
pub_keyword,iet_inspecKeyword,pub_concept
6
6
Loading