Journal of Power Electronics

The Korean Institute of Power Electronics (전력전자학회)
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A Passive Lossless Soft-Switching Single Inductor Dual Buck Full-Bridge Inverter

  • Hong, Feng (College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics) ;
  • Wu, Yu (College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics) ;
  • Ye, Zunjing (College of Electrical Engineering and Control Science, Nanjing TECH University) ;
  • Ji, Baojian (College of Electrical Engineering and Control Science, Nanjing TECH University) ;
  • Zhou, Yufei (College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics)
  • Received : 2017.08.03
  • Accepted : 2017.10.21
  • Published : 2018.03.20
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Abstract

A novel passive lossless soft-switching single inductor dual buck full-bridge inverter (PLSSIDBFBI) is presented in this paper. To accomplish this, a passive lossless snubber circuit is added to a dual buck full-bridge inverter. Therefore, the advantages of the dual buck full-bridge inverter are included in the proposed inverter, and the inverter has just one filter inductor, which can decrease the system volume and improve the integration. In addition, the passive lossless snubber circuit achieves soft-switching by its own resonance, and all of the energy stored in the passive lossless snubber circuit can be transferred to load. A comparison between eight topologies is performed in this paper, and the analysis shows that the proposed soft-switching inverter topology has high reliability and efficiency. Finally, experimental results obtained with a 1 kW prototype verify the theoretical analysis and demonstrate the prominent characteristics of a reduced switching loss and improved efficiency.

Keywords

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Fig. 1. Dual buck half-bridge inverter.

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Fig. 2. Passive lossless soft-switching single inductor dual buckfull-bridge inverter.

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Fig. 3. Key waveforms of the passive lossless soft-switching dualbuck full-bridge inverter.

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Fig. 4. Key waveforms of a snubber circuit.

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Fig. 5. Operating modes of the passive lossless soft-switchingdual buck full bridge inverter. (a) Mode 1. (b) Mode 2. (c) Mode3. (d) Mode 4.

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Fig. 6. Simulation waveforms of the snubber circuit withdifferent capacitances. (a) Oscillating current iL11. (b) Capacitor

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Fig. 7. Simulation waveforms of the snubber circuit withdifferent inductances. (a) Oscillating current iL11. (b) Capacitor

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Fig. 8. Losses compositions at a full load.

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Fig. 9. Comparison of reliability. (a) Hard switching. (b) Softswitching.

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Fig. 10. Experiment waveforms of the passive lossless soft-switching dual buck full bridge inverter.

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Fig. 11. Comparison of experimental waveforms of switches. (a)Experimental waveforms of a switch without a snubber circuit.(b) Experimental waveforms of a switch with a snubber circuit.(c) Experimental waveforms of a switch with a snubber circuit.

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Fig. 12. Comparison of efficiency.

TABLE I MODIFYING FACTORS

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TABLE II FACTORS OF DEVICES

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TABLE III COMPARISON OF SEVERAL TRANSFORMERLESS PV INVERTER TOPOLOGIES

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References

  1. H. Xiao, K. Lan, and L. Zhang, "A quasi-unipolar SPWM full-bridge transformerless PV grid-connected inverter with constant common-mode voltage," IEEE Trans. Power Electron., Vol. 30, No. 6, pp. 3122-3132, Jun. 2015. https://doi.org/10.1109/TPEL.2014.2331367
  2. L. Zhang, K. Sun, Y. Xing, and M. Xing, "H6 transformerless full-bridge PV grid-tied inverters," IEEE Trans. Power Electron., Vol. 29, No. 3, pp. 1229-1238, Mar. 2014. https://doi.org/10.1109/TPEL.2013.2260178
  3. W. Li, Y. Gu, H. Luo, W. Cui, X. He, and C. Xia, "Topology review and derivation methodology of singlephase transformerless photovoltaic inverters for leakage current suppression," IEEE Trans. Ind. Electron., Vol. 62, No. 7, pp. 4537-4551, July. 2015. https://doi.org/10.1109/TIE.2015.2399278
  4. S. V. Araujo, P. Zacharias, and R. Mallwitz, "Highly efficient single-phase transformerless inverters for gridconnected photovoltaic systems," IEEE Trans. Ind. Electron., Vol. 57, No. 9, pp. 3118-3128, Sep. 2010. https://doi.org/10.1109/TIE.2009.2037654
  5. H. Kim, Y. Chung, K. Lee, Y. Jon, and K. Kim, "Performance analysis of soft-switching inverter for the photovoltaic power system," in Proc. Int. Conf. Power Electron., Vol. 1, pp. 436-439, Oct. 2007.
  6. F. Liu, J. Yan, and X. Ruan, "Zero-voltage and zerocurrent- switching PWM combined three-level DC/DC converter," IEEE Trans. Ind. Electron, Vol. 57, No. 5, pp. 1644-1654, May. 2010. https://doi.org/10.1109/TIE.2009.2031950
  7. D. M. Divan, "The resonant DC link converter-a new concept in static power conversion," IEEE Trans. Ind. Appl., Vol. 25, No. 2, pp. 317-325, Mar/Apr. 1989 https://doi.org/10.1109/28.25548
  8. Z. Y. Pan and F. L. Luo, "Novel soft-switching inverter for brushless DC motor variable speed drive system," IEEE Trans. Power Electron., Vol. 19, No. 2, pp. 280-288, Mar. 2004 https://doi.org/10.1109/TPEL.2003.823173
  9. J. S. Lai, J. Zhang, H. Yu, and H. Kouns, "Source and load adaptive design for a high-power soft-switching inverter," IEEE Trans. Power Electron., Vol. 21, No. 6, pp. 1667- 1675, Nov. 2006. https://doi.org/10.1109/TPEL.2006.882946
  10. Y. P. Li, F. C. Lee, and D. Boroyevich, "A simplified three-phase zero-current-transition inverter with three auxiliary switches," IEEE Trans. Power Electron., Vol. 18, No. 3, pp. 802-813, May 2003.
  11. B. Chen, "Design and optimization of 99% CEC efficiency soft switching photovoltaic inverter," in Proc. IEEE Appl. Power Electron. Conf., Vol. 1, pp. 946-951, Mar. 2013.
  12. H. F. Xiao, X. P. Liu, and K. Lan, "Zero-voltage-transition full-bridge topologies for transformerless photovoltaic grid-connected inverter," IEEE Trans. Ind. Electron., Vol. 61, No. 10, pp. 5393-5401, Oct. 2014 https://doi.org/10.1109/TIE.2014.2300044
  13. H. F. Xiao, K. Lan, B. Zhou, L. Zhang, and Z. Wu, "A family of zero-current-transition transformerless photovoltaic grid-connected inverter," IEEE Trans. Power Electron., Vol. 30, No. 6, pp. 3156-3165, Jun. 2015. https://doi.org/10.1109/TPEL.2014.2337513
  14. H. F. Xiao, L. Zhang, and Y. Li, "An improved zero-current-switching single-phase transformerless PV H6 inverter with switching loss-free," IEEE Trans. Ind. Electron., Vol. 64, No. 10, pp. 7896-7905, Oct. 2017. https://doi.org/10.1109/TIE.2017.2694398
  15. H. F. Xiao, L. Zhang and Y. Li, "A zero-voltage-transition HERIC-type transformerless photovoltaic grid-connected inverter," IEEE Trans. Ind. Electron., Vol. 64, No. 2, pp. 1222-1232, Feb. 2017. https://doi.org/10.1109/TIE.2016.2611574
  16. F. Chan and H. Calleja, "Reliability estimation of three single-phase topologies in grid-connected PV systems," IEEE Trans. Ind. Electron., Vol. 58, No. 7, pp. 2683-2689, Jul. 2011. https://doi.org/10.1109/TIE.2010.2060459
  17. M. W. Gekeler, "Soft switching three level inverter with passive snubber circuit (S3L inverter)," Proc. Eur. Conf. Power Electron. Appl., pp. 1-10, 2011.
  18. K. M. Smith and K. M. Smedley, "Lossless passive soft-switching methods for inverters and amplifiers," IEEE Trans. Power Electron., Vol. 15, No. 1, pp. 164-173, Jan. 2000. https://doi.org/10.1109/63.817374
  19. J. Liu, H. Wang, and Y. Yan, "A novel three level dual buck half bridge inverter," IEEE Applied Power Electronics Conference, pp. 483-487, 2008.
  20. F. Hong, P. Yin, B. Ji, W. Yang, and C. Wang, "Decoupling control of input voltage balance for diodeclamped dual buck three-level inverter," IEEE Applied Power Electronics Conference (APEC), pp. 482-488, 2013.
  21. M. Liu, F. Hong, and C. Wang, "A novel flying-capacitor dual buck three-level inverter," IEEE Applied Power Electronics Conference (APEC), pp. 502-506, 2013.
  22. Z. Yao, L. Xiao, X. Wei, and H. Wang, "Dual-buck full-bridge inverter with SPWM control and single current sensor," IEEE Conference on Industrial Electronics and Applications, pp. 2154-2158, 2010.
  23. F. Hong, J. Liu, B. Ji, Y. Zhou, J. Wang, and C. Wang, "Interleaved dual buck full-bridge three-level inverter," IEEE Trans. Power Electron., Vol. 31, No. 2, pp. 964-974, Feb. 2016. https://doi.org/10.1109/TPEL.2015.2421295
  24. F. Hong, J. Liu, B. Ji, Y. Zhou, J. Wang, and C. Wang, "Single inductor dual buck full-bridge inverter," IEEE Trans. Ind. Electron., Vol. 62, No. 8, pp. 4869-4877, Aug. 2015. https://doi.org/10.1109/TIE.2015.2399280
  25. H. Feng, Y. Jun, Y. Yangguang, S. Renzhong, and W. Huizhen, "A novel dual buck full bridge three-level inverter," China. Patent 200 610 096 848.4, Nov. 12, 2008.
  26. W.-S. Yu, J.-S. Lai, and H. Qian, "High-efficiency inverter with H6-type configuration for photovoltaic non-isolated ac module applications," IEEE Applied Power Electronics Conference and Exposition (APEC), pp. 1056-1061, 2010.
  27. P. S. Gotekar, S. P. Muley, D. P. Kothari, and B. S. Umre, "Comparison of full bridge bipolar, H5, H6 and HERIC inverter for single phase photovoltaic systems - A review," IEEE India Conference (INDICON), pp. 1-6, 2015.
  28. H. Feng, S. Renzhong, W. Huizhen, and Y. Yangguang, “A new analysis and calculation of inverter power loss,” Proceedings of the CSEE, Vol. 28, No. 15, pp. 72-78, 2008.