Evaluation of an un-regulated input isolated DC–DC converter using WBG devices

Autor: Rakesh Ramachandran, Morten Nymand

Publikováno v: The Journal of Engineering (2019)

The paper presents the design and analysis of an un-regulated isolated DC–DC converter using wide band gap (WBG) devices for low-voltage, high current applications. Un-regulated isolated DC–DC converter uses a passive rectifier stage at the front

Externí odkaz: https://doaj.org/article/bc91254e56684473b97051d76380e88b

Operation and Efficiency Analysis of a Five-Level Single-Phase Hybrid Si/SiC Active Neutral Point Clamped Converter

Autor: Morten Nymand, Mohammad Najjar, Alireza Kouchaki, Mahdi Shahparasti

Publikováno v: Najjar, M, Shahparasti, M, Kouchaki, A & Nymand, M 2022, ' Operation and efficiency analysis of a five-level single-phase hybrid Si/SiC active neutral point clamped converter ', IEEE Journal of Emerging and Selected Topics in Power Electronics, vol. 10, no. 1, pp. 662-672 . https://doi.org/10.1109/JESTPE.2021.3105560

The ability to improve both the size and efficiency of multilevel single-phase converters is a key to uplift them as an attractive solution for industries, while the high number of switches and complex modulation techniques understandably make them u

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::94c3ef90e9e7f2e8a33eb68feccd2cb0
https://doi.org/10.1109/jestpe.2021.3105560

Efficiency Comparisons of Two-level and Three-level GaN/SiC based Converters

Autor: Mohammad Najjar, Morten Nymand, Alireza Kouchaki

Publikováno v: Najjar, M, Nymand, M & Kouchaki, A 2021, Efficiency Comparisons of Two-level and Three-level GaN/SiC based Converters . in 2021 IEEE 12th Energy Conversion Congress and Exposition-Asia (ECCE Asia) ., 9479380, IEEE, Proceedings of the Energy Conversion Congress and Exposition, pp. 13-18, 12th IEEE Energy Conversion Congress and Exposition-Asia, ECCE Asia 2021, Virtual, Singapore, Singapore, 24/05/2021 . https://doi.org/10.1109/ECCE-Asia49820.2021.9479380

The efficiency and power density of power electronics converter can easily be improved through the utilization of wide bandgap (WBG) devices. Meanwhile, by growing the diversity of WBG devices, it becomes challenging to select an optimum topology wit

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f69c002aff3804381e6fdd30d3f4a3f9
https://portal.findresearcher.sdu.dk/da/publications/6a598c75-fdb1-4ce4-aac6-deb989902138

A New Transformer Model with Separate Common-Mode and Differential-Mode Capacitance

Autor: Morten Nymand, Claus Kjeldsen, Christian Ostergaard

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

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

Inductor Size Evaluation of an Electromagnetic Interference Filter for a Two-Level Power Factor Correction Rectifier Using Different Modulation Techniques

Autor: Morten Nymand, Alireza Kouchaki, Mohammad Najjar

Publikováno v: Najjar, M, Kouchaki, A & Nymand, M 2020, Inductor Size Evaluation of an Electromagnetic Interference Filter for a Two-Level Power Factor Correction Rectifier Using Different Modulation Techniques . in 22nd European Conference on Power Electronics and Applications, EPE 2020 ECCE Europe ., 9215713, IEEE, 22nd European Conference on Power Electronics and Applications, EPE 2020 ECCE Europe, Lyon, France, 07/09/2020 . https://doi.org/10.23919/EPE20ECCEEurope43536.2020.9215713

Wide band-gap semiconductors exhibit superior performance compared to their silicon counterparts, which has enabled converters to work at higher switching frequencies. However, a higher switching frequency means larger harmonics in the electromagneti

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a5b511a616707073b567661e35308288
https://doi.org/10.23919/epe20ecceeurope43536.2020.9215713