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Research on Input-Series and Output-Parallel DC/DC Transformer

Conference paper
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 216)

Abstract

The input-series and output-parallel (ISOP) converters, which consist of multiple low-voltage and low-power modules, are very attractive in the high input voltage. In this paper, an ISOP DC/DC transformer, based on non-resonant full-bridge DC transformer modules, is proposed. The main factors, which influence the input voltage sharing, such as duty cycles, switching frequencies and periods, and turn ratios in each module, are analyzed in detail for guiding designing an ISOP DC/DC transformer in practical applications. Finally, experimental results of an ISOP DC/DC transformer are given to verify the analysis.

Keywords

DC transformer Input-series output-parallel Voltage sharing Full-bridge converter 

References

  1. 1.
    Ren YC, Xu M, Sun J et al (2005) A family of high power density unregulated bus converters. IEEE Trans Power Electron 20(5):535–542CrossRefGoogle Scholar
  2. 2.
    Inoue S, Akagi H (2007) A bidirectional isolated DC–DC converter as a core circuit of the next-generation medium-voltage power conversion system. IEEE Trans Power Electron 22(2):535–542CrossRefGoogle Scholar
  3. 3.
    Ruan X, Li B (2005) Zero-voltage and zero-current-switching PWM hybrid full-bridge three-level converter. IEEE Trans Industr Electron 52(1):213–220CrossRefGoogle Scholar
  4. 4.
    Rodríguez J, Lai J-S, Peng FZ (2002) Multilevel inverters: a survey of topologies, controls, and applications. IEEE Trans Industr Electron 49(4):724–738CrossRefGoogle Scholar
  5. 5.
    Ayyanar R, Giri R, Mohan N (2004) Active input-voltage and load-current sharing in input-series and output-parallel connected modular DC–DC converters using dynamic input-voltage reference scheme. IEEE Trans Power Electron 19(6):1462–1473CrossRefGoogle Scholar
  6. 6.
    Ruan X, Cheng L, Zhang T (2006) Control strategy for input-series output-paralleled converter. Power Electron Spec Conf 34:1–8Google Scholar
  7. 7.
    Giri R, Choudhary V, Ayyanar R, et al (2006) Common-duty-ratio control of input-series connected modular DC–DC converters with active input voltage and load-current sharing. IEEE Trans Ind Appl 42(4):1101–1111Google Scholar
  8. 8.
    Zhang XJ, Chen J, Gong CY (2009) Research on DC/DC transformer. High Voltage Eng 35(5):1144–1149Google Scholar

Copyright information

© Springer-Verlag London 2013

Authors and Affiliations

  1. 1.Huaihai Institute of TechnologyLianyungangChina

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