A 1.2 kV 100 kW Four-level ANPC Inverter with SiC Power Modules and Capacitor Voltage Balance for EV Traction Applications

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Abstract

With the recent advances of Silicon Carbide (SiC) power devices and multilevel converter topologies, a combination of them can further push the performance boundaries of electric vehicle (EV) traction inverters while adapting to higher-voltage systems. Prospectively targeting a 1.2 kV dc-link for the next-generation EV powertrain, this paper presents the design and implementation of a 100 kW/1.2 kV three-phase inverter formed by a four-level active neutral point clamped (4L-ANPC) topology and full-SiC power modules. The built converter prototype is the first of its kind (1.2 kV+SiC+4L-ANPC), which is implemented by the commercial half-bridge SiC power modules and enabled by the latest voltage balancing technique based on redundant level modulation. The concept of the converter is validated with a built prototype in a 1 kV/8 kW downscaled rig.
Original languageEnglish
Title of host publication2021 IEEE Energy Conversion Congress and Exposition (ECCE)
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Number of pages9
ISBN (Electronic)978-1-7281-5135-9
ISBN (Print)978-1-7281-6128-0
DOIs
Publication statusPublished - 16 Nov 2021
Event2021 IEEE Energy Conversion Congress and Exposition (ECCE) - Virtual
Duration: 10 Oct 202114 Oct 2021
https://www.ieee-ecce.org/2021/

Publication series

NameIEEE Energy Conversion Congress and Exposition
PublisherIEEE
ISSN (Print)2329-3721
ISSN (Electronic)2329-3748

Conference

Conference2021 IEEE Energy Conversion Congress and Exposition (ECCE)
Period10/10/2114/10/21
Internet address

Keywords

  • multilevel converter
  • Silicon Carbide
  • voltage balancing
  • four-level
  • electric vehicle

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  • Converter Architectures

    Yuan, X.

    1/11/1731/10/21

    Project: Research

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