By Shuyu OU, Ariya SANGWONGWANICH, Subham SAHOO, Frede BLAABJERG
| EPE 2023 - DS3g: Condition Monitoring and Life-Time Prediction | ||
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| | Semiconductor Devices Condition Monitoring Using Harmonics in Inverter Control Variables
By Shuyu OU, Ariya SANGWONGWANICH, Subham SAHOO, Frede BLAABJERG | |
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Abstract: The health status of power semiconductor devices in power converters is important but difficult to monitor. This paper analyzes the relationship between harmonics in inverter control variables and a health precursor (the on-state voltage Von of power semiconductor devices). Based on the analysis, harmonics can estimate Von without adding extra sensing circuits. The method is validated through simulations.
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