Method to Optimize the Number of Submodules of a Cascaded Multilevel Converter for an EV's Powertrain Based on Power Losses Analysis
This paper presents a criterion to address the optimization problem of finding the optimal number of submodules of a cascaded multilevel inverter for an Electric Vehicle's (EV) powertrain application. It describes how to calculate the overall power losses of a cascaded H-Bridge topology depending on an arbitrary number <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$N$</tex> of submodules under phase shift modulation. The method is based on a theoretical analysis of the power circuit with a generic power switching device. Then, further analysis is developed where a MOSFET is specifically chosen as the switching device. Moreover, a simulation environment using PLECS is used to verify the results obtained. An optimal number of <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$N=\{3,4\}$</tex> submodules per phase for which power losses are greatly reduced is obtained.
Authors
- Daniel Galvis Castellanos
- Latifa Bachouch (ORCID: https://orcid.org/0000-0002-7956-0646)
- Guillaume Gateau (ORCID: https://orcid.org/0000-0001-8774-4819)
- Elisabete I. Santiago (ORCID: https://orcid.org/0000-0002-5972-5933)
- Marc Cousineau (ORCID: https://orcid.org/0000-0002-2797-365X)
Institutions
- Centre National de la Recherche Scientifique (FR)
- Université Toulouse III - Paul Sabatier (FR)
- Institut National Polytechnique de Toulouse (FR)
- Laboratoire Plasma et Conversion d'Energie (FR)
- Philips (France) (FR)
- École Nationale Supérieure d'Électrotechnique, d'Électronique, d'Informatique, d'Hydraulique et des Télécommunications (FR)
Publication Details
- Published
- 2024-11-26
- DOI
- https://doi.org/10.1109/esars-itec60450.2024.10819817
- Primary Topic
- Electric Power Systems and Control
- Type
- article
- Field-Weighted Citation Impact
- 0.00