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Fast Short-Circuit Protection of SiC-MOSFETs through AC Current Sensors – A Perfect Fit for Highly Efficient Electrical Drives

  • Using special ac current sensors, it was shown that short-circuit protection of the latest CoolSiC™ MOSFET technology is possible. This simplifies the use of CoolSiC™ MOSFETs in applications such as industrial drives, where a certain robustness against short circuits is required. The use of CoolSiC™ MOSFETs leads to a more efficient drive inverter, which can help to reduce the energy costs over lifetime. In addition, the CoolSiC™ MOSFET enables inverter integration into the motor, which is challenging with state-of-the-art IGBTs. Furthermore, fast short-circuit protection can also help to increase the efficiency of an IGBT-based inverter by increasing the gate voltage.

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Author:Benjamin SahanORCiDGND, Kevin Kaczmarek, Michael Ebli, Klaus Grambichler
Parent Title (English):Bodo's Power Systems
Document Type:Article
Year of Completion:2021
Publishing Institution:Hochschule Hannover
Release Date:2024/06/05
Tag:Digitaler AC-Stromsensor; Leistungshalbleiter; Schnelle Kurzschlussdetektion; Überstromerkennung
CoolSiC MOSFET; Digital AC current sensor; Electric drives; Fast short-circuit detection; IGBT gate voltage; Overcurrent detection; Power semiconductors; SiC-MOSFETs; short-circuit protection
GND Keyword:Kurzschlussschutz; Stromsensor; Leistungshalbleiter; Elektroantrieb
First Page:44
Last Page:47
Institutes:Fakultät I - Elektro- und Informationstechnik
DDC classes:621.3 Elektrotechnik, Elektronik
Licence (German):License LogoCreative Commons - CC BY - Namensnennung 4.0 International