Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Claus Kjeldsen"'
Autor:
Claus Kjeldsen, Christian Østergaard
Publikováno v:
2022 IEEE 7th Southern Power Electronics Conference (SPEC).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::de5b6893fede862b7d34ed78f83364b8
https://doi.org/10.1109/spec55080.2022.10058469
https://doi.org/10.1109/spec55080.2022.10058469
Autor:
Claus Kjeldsen, Christian Østergaard
Publikováno v:
2022 IEEE Vehicle Power and Propulsion Conference (VPPC).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::34f988999d03ce99ab0bba7dda10d535
https://doi.org/10.1109/vppc55846.2022.10003371
https://doi.org/10.1109/vppc55846.2022.10003371
Publikováno v:
Ostergaard, C, Kjeldsen, C & Nymand, M 2020, Simple equivalent circuit capacitance model for two-winding transformers . in 2020 IEEE Vehicle Power and Propulsion Conference (VPPC) . IEEE, IEEE Vehicle Power and Propulsion Conference (VPPC), 17th IEEE Vehicle Power and Propulsion Conference, VPPC 2020, Virtual, Gijon, Spain, 18/11/2020 . https://doi.org/10.1109/VPPC49601.2020.9330873
This paper highlights how a currently available transformer equivalent circuit model incorrectly represents the transformer performance, in scenarios where both sides of the transformer are fixed to a common reference-point. A new transformer equival
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ca2ed4a35aeb5e71188c2861e34a432a
https://doi.org/10.1109/vppc49601.2020.9330873
https://doi.org/10.1109/vppc49601.2020.9330873
Publikováno v:
Østergaard, C, Kjeldsen, C & Nymand, M 2020, A New Transformer Model with Separate Common-Mode and Differential-Mode Capacitance . in Proceedings-IECON 2020 : 46th Annual Conference of the IEEE Industrial Electronics Society ., 9255142, IEEE, IECON Proceedings (Industrial Electronics Conference), vol. 2020-October, Proceedings of the Annual Conference of the IEEE Industrial Electronics Society, pp. 1198-1204, 46th Annual Conference of the IEEE Industrial Electronics Society, IECON 2020, Virtual, Singapore, Singapore, 19/10/2020 . https://doi.org/10.1109/IECON43393.2020.9255142
IECON
Web of Science
IECON
Web of Science
A new transformer equivalent circuit model is presented containing separate common-mode and differential-mode capacitors, allowing for direct and simple analysis of the transformers influence. The representation of common-mode and differential-mode s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1ad22e03cd04e22dc8f0862ffdc8455d
https://findresearcher.sdu.dk:8443/ws/files/183171243/A_new_transformer_model_with_separate_common_mode_and_differential_mode_capacitance_IEEE_PDF_eXpress_approved_2.pdf
https://findresearcher.sdu.dk:8443/ws/files/183171243/A_new_transformer_model_with_separate_common_mode_and_differential_mode_capacitance_IEEE_PDF_eXpress_approved_2.pdf
Publikováno v:
Kjeldsen, C, Østergaard, C, Nymand, M & Ramachandran, R 2019, Procedure to compare different design methods for implementation-ready high power inductors . in Proceedings-2019 IEEE 13th International Conference on Compatibility, Power Electronics and Power Engineering, CPE-POWERENG 2019 . IEEE, 13th IEEE International Conference on Compatibility, Power Electronics and Power Engineering, CPE-POWERENG 2019, Sønderborg, Denmark, 23/04/2019 . https://doi.org/10.1109/CPE.2019.8862336
In order to realize efficienct high power inductors with high power density, different design methods should be compared. This paper proposes a design procedure where different design methods are compared to find appropriate inductor designs for any
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1b36ee55bd24543e7f871c6cdb07786a
https://doi.org/10.1109/cpe.2019.8862336
https://doi.org/10.1109/cpe.2019.8862336
Publikováno v:
University of Southern Denmark
Oestergaard, C, Kjeldsen, C S & Nymand, M 2021, Demonstration of a Compact Hard-Switched 3.5 kW DC/DC Converter utilizing Planar Magnetics optimized for low Capacitive Loss . in 2021 23rd European Conference on Power Electronics and Applications, EPE 2021 ECCE Europe . IEEE, 23rd European Conference on Power Electronics and Applications, EPE 2021 ECCE Europe, Ghent, Belgium, 06/09/2021 . < https://ieeexplore.ieee.org/document/9570592 >
Web of Science
Oestergaard, C, Kjeldsen, C S & Nymand, M 2021, Demonstration of a Compact Hard-Switched 3.5 kW DC/DC Converter utilizing Planar Magnetics optimized for low Capacitive Loss . in 2021 23rd European Conference on Power Electronics and Applications, EPE 2021 ECCE Europe . IEEE, 23rd European Conference on Power Electronics and Applications, EPE 2021 ECCE Europe, Ghent, Belgium, 06/09/2021 . < https://ieeexplore.ieee.org/document/9570592 >
Web of Science
It is necessary to accurately determine the power losses in a converter to obtain a high efficient design. This paper presents an in-depth analysis of all the power losses in a converter. The capacitive loss of the transformer and switches is investi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ca7a985497949d8fa6481552359b1258
https://portal.findresearcher.sdu.dk/en/publications/3b166690-9809-47ad-88d3-d0b2aadf3e7a
https://portal.findresearcher.sdu.dk/en/publications/3b166690-9809-47ad-88d3-d0b2aadf3e7a
Publikováno v:
Web of Science
Østergaard, C, Kjeldsen, C S & Nymand, M 2020, Calculation of Planar Transformer Capacitance Based on the Applied Terminal Voltages . in 2020 IEEE 21st Workshop on Control and Modeling for Power Electronics (COMPEL) . IEEE, 2020 IEEE 21st Workshop on Control and Modeling for Power Electronics (COMPEL), Aalborg, Denmark, 09/11/2020 . https://doi.org/10.1109/COMPEL49091.2020.9265797
Østergaard, C, Kjeldsen, C S & Nymand, M 2020, Calculation of Planar Transformer Capacitance Based on the Applied Terminal Voltages . in 2020 IEEE 21st Workshop on Control and Modeling for Power Electronics (COMPEL) . IEEE, 2020 IEEE 21st Workshop on Control and Modeling for Power Electronics (COMPEL), Aalborg, Denmark, 09/11/2020 . https://doi.org/10.1109/COMPEL49091.2020.9265797
In order to calculate the parasitic capacitors of a transformer, it is important to apply the correct transformer terminal voltages such that only the desired lumped capacitors are charged. This paper shows the correct transformer terminal voltages t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e5ade9accefba7beae3a9ed0713ea80e
https://publons.com/wos-op/publon/54354221/
https://publons.com/wos-op/publon/54354221/
Publikováno v:
Web of Science
University of Southern Denmark
Oestergaard, C, Kjeldsen, C S & Nymand, M 2021, Optimized Planar Inductor for a High Current 3.5 kW Isolated DC/DC Converter . in 2021 23rd European Conference on Power Electronics and Applications, EPE 2021 ECCE Europe . IEEE, 23rd European Conference on Power Electronics and Applications, EPE 2021 ECCE Europe, Ghent, Belgium, 06/09/2021 . < https://ieeexplore.ieee.org/document/9570418 >
University of Southern Denmark
Oestergaard, C, Kjeldsen, C S & Nymand, M 2021, Optimized Planar Inductor for a High Current 3.5 kW Isolated DC/DC Converter . in 2021 23rd European Conference on Power Electronics and Applications, EPE 2021 ECCE Europe . IEEE, 23rd European Conference on Power Electronics and Applications, EPE 2021 ECCE Europe, Ghent, Belgium, 06/09/2021 . < https://ieeexplore.ieee.org/document/9570418 >
The paper presents several planar inductors optimized for low power loss in a 3.5 kW isolated full-bridge forward converter, which is operated at a large output current. The inductors are optimized by use of a winding configuration which is proven to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fc137f68b20e76d5a644c22705de26f4
https://publons.com/wos-op/publon/54354215/
https://publons.com/wos-op/publon/54354215/
Autor:
Claus Bech-Danielsen, Ellen Højgaard, Jane Sandberg, Kent Martinussen, Tina Saaby, Jannik Nyrop, Martin Severin Frandsen, Martin Brynskov, Boris Brorman Jensen, Helle Søholt, Dan Stubbergaard, Rolf Andersson, Birgitte Mazanti, Claus Kjeldsen, Christian Fumz, Lars Olsen, Anne-Marie Dahl, Torben Thyregod, Karl-Gustav Jensen, Tænketanken Byen 2025
Publikováno v:
Aalborg University
Roskilde University
Roskilde University
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::3473edcab6c141bb0b34e8eba1619724
https://vbn.aau.dk/en/publications/e77e77b1-8079-499b-8341-0b4be79cf85c
https://vbn.aau.dk/en/publications/e77e77b1-8079-499b-8341-0b4be79cf85c