A Soft-Switching Control Method of Isolated LC Series Resonant Transformer Full Bridge DC–DC Converter

  • Meng Jiang
  • Wei Li
Conference paper
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 288)


For the different characteristics of nonresonant and resonant isolated bidirectional full bridge DC–DC converter, a unified expression of power transmissions is derived from two DC–DC converters. The power transfer characteristics could be unified described through the power expression. The problem of isolated bidirectional DC–DC converter is that the switching loss increases and the converter efficiency declines with the forced turn-on or turn-off of switch devices in high-frequency situation. In this paper, to solve this problem, an isolated LC series resonant transformer full bridge DC–DC converter is taken as research object, a phase-shift control strategy which could realize zero voltage turn-on and decrease the turn-off current of the power devices to decrease switching loss and increase the efficiency is proposed. The validity of proposed control strategy is verified through simulation and experiment results.


Bidirectional full bridge DC–DC converter Series resonant Soft-switching technology First harmonic analysis Voltage gain 


  1. 1.
    Zhang M, Liu J, Jin X (2011) Research on the FREEDM micro-grid and its relay protection. Power Syst Prot Control 39(7):95–99Google Scholar
  2. 2.
    Li L, Liu G (2011) Development of bi-directional DC–DC converter in multiple battery energy storage system. Power Syst Prot Control 39(3):90–94Google Scholar
  3. 3.
    Du C, Zhang C, Chen A et al (2011) Digital control and implementation of photovoltaic soft-switching DC–DC converter with high-frequency step-up transformer isolation. Trans Chin Electrotech Soc 26(8):57–63Google Scholar
  4. 4.
    Liu H, Mao C, Lu J et al (2010) Energy storage system of electronic power transformer and its optimal control. Trans Chin Electrotech Soc 25(3):54–60Google Scholar
  5. 5.
    Demetriades GD, Nee HP (2008) Small-signal analysis of the half-bridge soft-swithing uni-directional converter employing extended state-space averaging. In: Power electronics specialists conference, Rhodes, pp 385–391Google Scholar
  6. 6.
    Demetriades GD, Nee HP (2008) Characterization of the dual-active bridge topology for high-power applications employing a duty-cycle modulation. In: Power electronics specialists conference, Rhodes, pp 2791–2798Google Scholar
  7. 7.
    Bai H, Nie Z, Chris CM (2010) Experimental comparison of traditional phase-shift, dual-phase-shift, and model-based control of isolated bidirectional DC–DC converters. IEEE Trans Power Electron 25(6):1444–1449CrossRefGoogle Scholar
  8. 8.
    Oggier GG, Gar′cia GO, Oliva AR (2009) Switching control strategy to minimize dual active bridge converter losses. IEEE Trans Power Electron 24(7):1826–1838CrossRefGoogle Scholar
  9. 9.
    Ortiz G, Biela J, Bortis D et al (2010) 1 megawatt, 20 kHz, isolated, bidirectional 12 kV to 1.2 kV DC–DC converter for renewable energy applications. In: Power electronics conference, Singapore, pp 3212–3219Google Scholar
  10. 10.
    Lenke R, Mura F, De Doncker RW (2009) Comparison of non-resonant and super-resonant dual-active ZVS-operated high-power DC–DC converters. In: European conference on power electronics and applications, 2009, pp 1–10Google Scholar
  11. 11.
    Li X, Ashoka KSB (2010) Analysis and design of high-frequency isolated dual-bridge series resonant DC–DC converter. IEEE Trans Power Electron 25(4):850–862CrossRefGoogle Scholar
  12. 12.
    Wu L, Zhang Y, Li Z, Wang P, Li Y, Liu Z (2012) A control strategy of isolated bidirectional full bridge DC/DC converter. Electric Mach Control 16(12):21–27MathSciNetGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  1. 1.Management DepartmentTianjin UniversityTianjinPeople’s Republic of China
  2. 2.Rescuing Center for Mineral Disaster of HenanZhengzhouPeople’s Republic of China

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