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Modeling of multi-winding high-frequency transformers as a common magnetic-link in smart micro-grids

Conference Paper


Abstract


  • Recent improvements in magnetic material characteristics and switching device increased the possibility of replacing electrical buses with high-frequency magnetic-links in micro-grids. Multi-winding transformers (MWTs) provide a common magnetic bus for integrating renewable energies in the form of magnetic flux. Their application in multi-port converter makes it possible to simply integrate the sources with different voltage levels adjusting winding turn ratios. Other advantages are galvanic isolation, bidirectional power flow capability and simultaneous power transfer among the ports. Despite the above positive points modeling and characterization of MWTs is relatively complex due to the cross coupling and nonlinearity effects. This paper describes the experimental test procedures carried out on a toroidal core MWT to extract the parameters and to find the equivalent electrical model. Both prototype and resulted model are tested under different load conditions and are compared to verify the validity of modeling process.

UOW Authors


  •   Jafari, Mohammad (external author)
  •   Islam, Md Rabiul
  •   Malekjamshidi, Zahra (external author)
  •   Zhu, Jianguo G. (external author)

Publication Date


  • 2016

Citation


  • M. Jafari, M. Islam, Z. Malekjamshidi & J. Zhu, "Modeling of multi-winding high-frequency transformers as a common magnetic-link in smart micro-grids," in 1st International Conference on Electrical & Electronic Engineering (ICEEE 2015), 2016, pp. 249-252.

Scopus Eid


  • 2-s2.0-84966641979

Start Page


  • 249

End Page


  • 252

Place Of Publication


  • United States

Abstract


  • Recent improvements in magnetic material characteristics and switching device increased the possibility of replacing electrical buses with high-frequency magnetic-links in micro-grids. Multi-winding transformers (MWTs) provide a common magnetic bus for integrating renewable energies in the form of magnetic flux. Their application in multi-port converter makes it possible to simply integrate the sources with different voltage levels adjusting winding turn ratios. Other advantages are galvanic isolation, bidirectional power flow capability and simultaneous power transfer among the ports. Despite the above positive points modeling and characterization of MWTs is relatively complex due to the cross coupling and nonlinearity effects. This paper describes the experimental test procedures carried out on a toroidal core MWT to extract the parameters and to find the equivalent electrical model. Both prototype and resulted model are tested under different load conditions and are compared to verify the validity of modeling process.

UOW Authors


  •   Jafari, Mohammad (external author)
  •   Islam, Md Rabiul
  •   Malekjamshidi, Zahra (external author)
  •   Zhu, Jianguo G. (external author)

Publication Date


  • 2016

Citation


  • M. Jafari, M. Islam, Z. Malekjamshidi & J. Zhu, "Modeling of multi-winding high-frequency transformers as a common magnetic-link in smart micro-grids," in 1st International Conference on Electrical & Electronic Engineering (ICEEE 2015), 2016, pp. 249-252.

Scopus Eid


  • 2-s2.0-84966641979

Start Page


  • 249

End Page


  • 252

Place Of Publication


  • United States