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A DC-Autotransformer based Multilevel Inverter for Automotive Applications.

Grimm, F; Wood, J; Baghdadi, M; (2020) A DC-Autotransformer based Multilevel Inverter for Automotive Applications. arXiv: Ithaca, NY, USA. Green open access

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Abstract

This paper proposes a novel multilevel inverter for automotive applications. The topology consists of a modular DCDC converter and a tap selector, where the DC-DC converter provides several DC-output levels and the tap selector produces an AC signal by choosing different DC-output signals from the DC-DC converter. To produce the DC-levels, the DC-DC converter consists of a modular structure where the modules are connected in series. The novelty is that the modules are connected both, magnetically in the AC-domain and electrically in the DCdomain. Due to the usage of low power switches in the modules, the proposed structure provides high efficiency. Furthermore, the DC-DC converter is capable of self-balancing its modules and thus does not require large capacitors which yields a high power density. A prototype of the proposed converter is built and simulation, as well as experimental results, are used to verify the findings.

Type: Working / discussion paper
Title: A DC-Autotransformer based Multilevel Inverter for Automotive Applications.
Open access status: An open access version is available from UCL Discovery
Publisher version: https://arxiv.org/abs/2011.12164
Language: English
Additional information: This is an open access paper https://creativecommons.org/licenses/by-nc-sa/4.0/
Keywords: Multi-active bridge, autotransformer, multilevel converter, automotive inverter.
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Mechanical Engineering
URI: https://discovery.ucl.ac.uk/id/eprint/10118655
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