at Google ScholarTitle data
Ringelmann, Tim ; Bakran, Mark-M.:
Active Short Circuit Strategies Considering Hybrid Converter Topologies with Normally-On Devices.
2026
Event: PCIM Europe 2026
, 09.-11.06.2026
, Nürnberg.
(Conference item: Conference
,
Paper
)
Abstract in another language
Three-level converters are gaining increasingly relevance in automotive powertrain applications due to their superior efficiency compared to conventional 2-level converters. Numerous studies have investigated hybrid configurations that combine silicon (Si) insulated gate bipolar transistors (IGBTs) and silicon carbide (SiC) metal-oxide semiconductor field-effect transistors (MOSFETs) to reduce losses. This work evaluates several hybrid converter topologies – namely the B6, neutral point clamped converter (NPC), T-type neutral point clamped converter (TNPC) and active neutral point clamped converter (ANPC) – implemented with normally-on semiconductors, which offer reduced losses and improved automotive safety integration.
In automotive fault scenarios such as a gate-supply outage, the initialization of an active short circuit (ASC) is required. While converter concepts based exclusively on normally-off devices typically rely on a redundant gate supply to ensure ASC capability. A strategically combination of normally-on devices (e.g. junction field-effect transitsors (JFETs)) and normally-off devices (e.g. MOSFETs) enables ASC initiation without additional redundancy, by exploiting the inherent conduction behavior of normally-on devices.
Further data
| Item Type: | Conference item (Paper) |
|---|---|
| Refereed: | Yes |
| Institutions of the University: | Faculties > Faculty of Engineering Science > Chair Mechatronics > Chair Mechatronics - Univ.-Prof. Dr.-Ing. Mark-M. Bakran Profile Fields > Advanced Fields > Advanced Materials Profile Fields > Emerging Fields > Energy Research and Energy Technology Research Institutions > Research Units > Zentrum für Energietechnik - ZET |
| Result of work at the UBT: | Yes |
| DDC Subjects: | 600 Technology, medicine, applied sciences > 620 Engineering |
| Date Deposited: | 10 Jul 2026 07:45 |
| Last Modified: | 10 Jul 2026 07:45 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/99001 |