Oscillation and Overvoltage Damping in an All-SiC Three-Level ANPC-VSC

Research output: Contribution to book/Conference proceedings/Anthology/ReportConference contributionContributedpeer-review

Contributors

Abstract

The three-level active neutral-point clamped voltage source converter (3L-ANPC-VSC) provides some important advantages compared to the two-level voltage source converter (2L-VSC), for example a higher power density. Despite these benefits the implementation of a 3L-ANPC-VSC with multiple half-bridge modules causes challenges. One key issue is the large stray inductance during long commutations, which could result in undesired overvoltages and oscillations. This paper presents one phase leg of a 3L-ANPC-VSC using silicon carbide (SiC) MOSFET half-bridge modules. In order to compensate effects of the high stray inductance a resistively damped decoupling capacitor (RC-circuit) is employed. Measurements show, voltage oscillations are effectively suppressed while the overvoltage during switching is significantly reduced.

Details

Original languageEnglish
Title of host publication2025 Energy Conversion Congress & Expo Europe (ECCE Europe)
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages1-6
Number of pages6
ISBN (print)979-8-3315-6753-8
Publication statusPublished - 4 Sept 2025
Peer-reviewedYes

Conference

Title
SubtitlePowering the Electric Revolution
Abbreviated titleECCE Europe 2025
Duration31 August - 4 September 2025
Website
Degree of recognitionInternational event
LocationInternational Convention Centre Birmingham ICC
CityBirmingham
CountryUnited Kingdom

External IDs

ORCID /0000-0003-2344-6147/work/198593024
ORCID /0000-0003-0153-148X/work/198593117

Keywords

Keywords

  • Damping, Resistors, Inductance, MOSFET, Voltage measurement, Silicon carbide, Capacitors, Europe, Surges, Oscillators