Design optimization of a high-power transformer for three-phase dual active bridge DC-DC converter for MVDC grids
High-power DC-DC converter will be one of the essential technologies for the future DC grids. Especially, a three-phase dual-active bridge DC-DC (3DAB) Converter is highly suitable for high-power DC systems. Key component within this converter is the high power transformer operated at a medium frequ...
| Main Authors: | , , , , |
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| Format: | Conference or Workshop Item |
| Published: |
2016
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| Online Access: | https://eprints.nottingham.ac.uk/40268/ |
| _version_ | 1848796021634629632 |
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| author | Lee, Youngsil Vakil, Gaurang Feldman, Ralph Goodman, Andrew Wheeler, Patrick |
| author_facet | Lee, Youngsil Vakil, Gaurang Feldman, Ralph Goodman, Andrew Wheeler, Patrick |
| author_sort | Lee, Youngsil |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | High-power DC-DC converter will be one of the essential technologies for the future DC grids. Especially, a three-phase dual-active bridge DC-DC (3DAB) Converter is highly suitable for high-power DC systems. Key component within this converter is the high power transformer operated at a medium frequency (MF) range. The design and optimization of this key component is presented in this paper. The transformer provides galvanic isolation from low voltage level to medium level or high voltage level and provides stepping up or down of the output (secondary) voltage. At first, a design of three-phase medium frequency transformer is developed. The designed transformer is then validated using two-dimensional (2D) transient finite element analysis (FEA) and performance under the non-sinusoidal excitation is determined. After that, the optimization is carried out, for the set of selected design variables, in order to enhance the power density and efficiency of the targeted transformer. Finally, the performance of the full system, 3DAB converter, is determined using the parameters of optimized transformer. Also, two different rated input voltages for 4MW/1kHz three-phase transformer are considered and analysed in this paper. |
| first_indexed | 2025-11-14T19:41:22Z |
| format | Conference or Workshop Item |
| id | nottingham-40268 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:41:22Z |
| publishDate | 2016 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-402682020-05-04T18:21:36Z https://eprints.nottingham.ac.uk/40268/ Design optimization of a high-power transformer for three-phase dual active bridge DC-DC converter for MVDC grids Lee, Youngsil Vakil, Gaurang Feldman, Ralph Goodman, Andrew Wheeler, Patrick High-power DC-DC converter will be one of the essential technologies for the future DC grids. Especially, a three-phase dual-active bridge DC-DC (3DAB) Converter is highly suitable for high-power DC systems. Key component within this converter is the high power transformer operated at a medium frequency (MF) range. The design and optimization of this key component is presented in this paper. The transformer provides galvanic isolation from low voltage level to medium level or high voltage level and provides stepping up or down of the output (secondary) voltage. At first, a design of three-phase medium frequency transformer is developed. The designed transformer is then validated using two-dimensional (2D) transient finite element analysis (FEA) and performance under the non-sinusoidal excitation is determined. After that, the optimization is carried out, for the set of selected design variables, in order to enhance the power density and efficiency of the targeted transformer. Finally, the performance of the full system, 3DAB converter, is determined using the parameters of optimized transformer. Also, two different rated input voltages for 4MW/1kHz three-phase transformer are considered and analysed in this paper. 2016-11-10 Conference or Workshop Item PeerReviewed Lee, Youngsil, Vakil, Gaurang, Feldman, Ralph, Goodman, Andrew and Wheeler, Patrick (2016) Design optimization of a high-power transformer for three-phase dual active bridge DC-DC converter for MVDC grids. In: 8th IET International Conference on Power Electronics, Machines and Drives (PEMD 2016), 19-21 April 2016, Glasgow, UK. DC-DC converter 3DAB transformer design non-sinusoidal excitation finite element analysis. http://ieeexplore.ieee.org/document/7739463/?arnumber=7739463 |
| spellingShingle | DC-DC converter 3DAB transformer design non-sinusoidal excitation finite element analysis. Lee, Youngsil Vakil, Gaurang Feldman, Ralph Goodman, Andrew Wheeler, Patrick Design optimization of a high-power transformer for three-phase dual active bridge DC-DC converter for MVDC grids |
| title | Design optimization of a high-power transformer for three-phase dual active bridge DC-DC converter for MVDC grids |
| title_full | Design optimization of a high-power transformer for three-phase dual active bridge DC-DC converter for MVDC grids |
| title_fullStr | Design optimization of a high-power transformer for three-phase dual active bridge DC-DC converter for MVDC grids |
| title_full_unstemmed | Design optimization of a high-power transformer for three-phase dual active bridge DC-DC converter for MVDC grids |
| title_short | Design optimization of a high-power transformer for three-phase dual active bridge DC-DC converter for MVDC grids |
| title_sort | design optimization of a high-power transformer for three-phase dual active bridge dc-dc converter for mvdc grids |
| topic | DC-DC converter 3DAB transformer design non-sinusoidal excitation finite element analysis. |
| url | https://eprints.nottingham.ac.uk/40268/ https://eprints.nottingham.ac.uk/40268/ |