Cited by 111Multilevel Inverters and ConvertersElectric and Hybrid Vehicle TechnologiesSilicon Carbide Semiconductor Technologies

Improving the Overall Efficiency of Automotive Inverters Using a Multilevel Converter Composed of Low Voltage Si mosfets

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Chang, Fengqi, Ilina, Olga, Lienkamp, Markus, Voss, Leon·2019·IEEE Transactions on Power Electronics

Abstract

In order to improve the driving range and reduce the cost of battery electric vehicles through a higher efficiency, this paper proposes to adopt multilevel converters using low-voltage Si mosfets in the electric powertrains. A multilevel Si mosfet inverter, a conventional insulated-gate bipolar transistor (IGBT) inverter, and a SiC mosfet inverter are modeled and compared using a reference vehicle over various driving cycles. The costs of the three solutions are also compared. It is shown that the multilevel Si mosfet inverter has a rather high efficiency and realizes the lowest cost among the three solutions even when the worst case of cost is considered. Sensitivity analysis also shows that the multilevel Si mosfet inverter is suitable for a wide range of vehicle concepts in addition to the reference vehicle. Moreover, the multilevel topology also features lower electromagnetic interference and provides modularity. Therefore, Si mosfet-based multilevel inverters are proved in this paper to be an appropriate option to improve the efficiency and reduce the cost of electric powertrains.

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Crossref · 10.1109/tpel.2018.2854756

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Authors
Chang, F., Ilina, O., Lienkamp, M., & Voss, L.
Affiliations
  • Technical University of Munich (DE)
  • Ansys (Germany) (DE)
Venue
IEEE Transactions on Power Electronics
Published
2019-04
Volume
34
Issue
4
Pages
3586-3602
ISSN
  • 0885-8993 (ISSN-L)
  • 1941-0107
OpenAlex
W2862496452
Cited by
111
References
80
Citations by year
2026: 11 · 2025: 17 · 2024: 11 · 2023: 21 · 2022: 14 · 2021: 15 · 2020: 16 · 2019: 6
FWCI
3.54
Type
journal article
Language
en
Open access
Locations
  • IEEE Transactions on Power Electronics (publishedVersion)
  • mediaTUM (Technical University of Munich) (submittedVersion, other-oa)
Funders
National Research Foundation
Topics
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Multilevel Inverters and Converters
  • Physical Sciences › Engineering › Automotive Engineering › Electric and Hybrid Vehicle Technologies
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Silicon Carbide Semiconductor Technologies
Keywords
multilevel inverter, Si MOSFET, automotive inverters, battery electric vehicles, electric vehicle drivetrain, inverter efficiency, IGBT comparison, cost comparison, driving cycles, electromagnetic interference, modularity, sensitivity analysis

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