Online Monitoring Approach of a SiC Power Semiconductor using Turn-Off Delay during Operation
Conference: PCIM Europe 2023 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
05/09/2023 - 05/11/2023 at Nürnberg, Germany
doi:10.30420/566091204
Proceedings: PCIM Europe 2023
Pages: 6Language: englishTyp: PDF
Authors:
Golev, Victor; Schuemann, Ulf; Rassmann, Rando (University of Applied Sciences Kiel, Institute for Electrical Power Engineering, Kiel, Germany)
Abstract:
This paper presents a condition monitoring approach based on the turn-off delay measurement of silicon carbide (SiC) semiconductors during converter operation. It is demonstrated that the measured data can be used to determine the temperature differences between the switches in power modules. The measurement system is integrated in a SiC driver and uses a time-to-digital converter (TDC) integrated circuit. The turn-off delay time of the semiconductor during converter operation is investigated in detail for different states in this paper.