Energies (Nov 2022)

Analytical Estimation of Power Losses in a Dual Active Bridge Converter Controlled with a Single-Phase Shift Switching Scheme

  • Marek Turzyński,
  • Serafin Bachman,
  • Marek Jasiński,
  • Szymon Piasecki,
  • Marek Ryłko,
  • Huang-Jen Chiu,
  • Shih-Hao Kuo,
  • Yu-Chen Chang

DOI
https://doi.org/10.3390/en15218262
Journal volume & issue
Vol. 15, no. 21
p. 8262

Abstract

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Micro-grid solutions around the world rely on the operation of DC/DC power conversion systems. The most commonly used solution for these topologies is the use of a dual active bridge (DAB) converter. Increasing the efficiency and reliability of this system contributes to the improvement in the stability of the entire microgrid. This paper discussed an analytical method of energy efficiency and power loss estimation in a single phase dual active bridge (DAB) converter controlled with a single-phase shift (SPS) modulation scheme for microgrid system stability. The presented approach uses conduction and commutation losses of semiconductors and high frequency transformer. All parameters required for the calculation may be obtained from the manufacturers’ datasheets or can be based on a simple measurement. The approach was validated by the comparison of the estimated energy efficiency characteristics with the measured ones for a prototype of a 5 kW single phase DAB converter equipped with silicon carbide metal-oxide semiconductor field-effect transistors (SiC MOSFET).

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