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A high-power DC-DC converter based dual active bridge for MVDC grids on offshore wind farms

Lee, Youngsil; Vakil, Gaurang; Feldman, Ralph; Watson, Alan J.; Wheeler, Patrick

Authors

Youngsil Lee

Ralph Feldman

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ALAN WATSON ALAN.WATSON@NOTTINGHAM.AC.UK
Associate Professor

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PATRICK WHEELER pat.wheeler@nottingham.ac.uk
Professor of Power Electronic Systems



Abstract

This paper presents the steady-state analysis of a high power step-up DC-DC converter based three-phase dual active bridge (3DAB) for use as a medium voltage (MV) DC-DC collector of offshore wind farms. An optimization procedure for a high-power medium frequency transformer is explained and moreover, a design of an optimal control phase shift angle is explained and verified through simulation. The comparisons with two scenarios are presented: 4MW converters for power conversion from low dc voltage (LVDC) of the wind turbine output terminal to 40kV MVDC grid of offshore wind farms. The proposed 3DAB DC-DC converter is investigated for the given scenarios in terms of losses of the semi-conductors and the magnetic part as well as the quantity of semi-conductors.

Citation

Lee, Y., Vakil, G., Feldman, R., Watson, A. J., & Wheeler, P. (2016). A high-power DC-DC converter based dual active bridge for MVDC grids on offshore wind farms. In 2016 18th European Conference on Power Electronics and Applications (EPE'16 ECCE Europe) (1-10). https://doi.org/10.1109/EPE.2016.7695573

Conference Name 2016 18th European Conference on Power Electronics and Applications, EPE 2016 ECCE Europe
Conference Location Karlsruhe, Germany
Start Date Sep 5, 2016
End Date Sep 9, 2016
Acceptance Date Mar 1, 2016
Online Publication Date Oct 27, 2016
Publication Date 2016
Deposit Date Jun 17, 2016
Publicly Available Date Mar 29, 2024
Peer Reviewed Peer Reviewed
Pages 1-10
Book Title 2016 18th European Conference on Power Electronics and Applications (EPE'16 ECCE Europe)
ISBN 978-1-5090-1410-1
DOI https://doi.org/10.1109/EPE.2016.7695573
Keywords Dual Active Bridge, high-power dc-dc converter, offshore wind farms, MVDC Grids, power loss
Public URL https://nottingham-repository.worktribe.com/output/774464
Publisher URL https://ieeexplore.ieee.org/document/7695573/

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