Reactive current optmisation for high power dual active bridge DC/DC converter

Muhammad I. Rahman, Dragan Jovcic, Dr Khaled Hani Ahmed

Research output: Chapter in Book/Report/Conference proceedingPublished conference contribution

11 Citations (Scopus)


This paper presents a new approach for minimizing reactive power for the dual active bridge DC/DC converter for high power applications. The chosen topology comprises of two active bridges with internal medium frequency transformer. Assuming the converter operate in steady-state, both bridges are analyzed with an AC equivalent circuit where only the fundamental component of the voltages and currents are considered. The phase shift angle between the two AC voltages can manipulate the power flow of the converter and the phase shift on the individual bridge branches control the AC voltage magnitude are realized in the steady-state analysis. It is possible to achieve zero reactive power based on the control strategies and proper selection of the transformer parameters. The transformer design steps based on zero reactive power conditions are also provided. Finally, a 3 MW 4/40 kV dual active bridge DC/DC converter is modeled in SABER platform to confirm the converter performance from the theoretical analysis.
Original languageEnglish
Title of host publication2013 IEEE Grenoble Conference
Subtitle of host publicationProceedings of a meeting held 16-20 June 2013, Grenoble, France
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Number of pages6
ISBN (Electronic)9781467356695
ISBN (Print)9781467356688
Publication statusPublished - Jun 2013
Event2013 IEEE Grenoble PowerTech - World Trade Center Grenoble, Grenoble, France
Duration: 16 Jun 201320 Jun 2013


Conference2013 IEEE Grenoble PowerTech

Bibliographical note

The authors would like to greatly thank the Government of Brunei Darussalam for the financial support of this research.


  • DC/DC converter
  • Dual active bridge (DAB)
  • medium frequency (MF) transformer
  • high power
  • bidirectional


Dive into the research topics of 'Reactive current optmisation for high power dual active bridge DC/DC converter'. Together they form a unique fingerprint.

Cite this