Abstract
This paper proposes an online calibration method for the junction temperature estimation of power semiconductor devices in Electric Vehicle (EV) traction applications utilizing thermo-sensitive electrical parameters (TSEPs). It is achieved through the DC-link discharging operation mode of the traction inverter after the vehicle is parked, which is a natural and frequent activity in EV applications. Compared to conventional calibration schemes, the proposed method can be conveniently accomplished in a short term without the need for long-term data recording or complex operating states. The on-state saturation voltage of power semiconductors is used as a typical TSEP in this paper for the case study, and the proof-of-concept experiments based on a scaled-down inverter prototype verify the effectiveness, accuracy, and convenience of the proposed method.
| Original language | English |
|---|---|
| Title of host publication | 2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023 |
| Number of pages | 7 |
| Publisher | IEEE (Institute of Electrical and Electronics Engineers) |
| Publication date | 2023 |
| Pages | 2153-2159 |
| ISBN (Electronic) | 9798350316445 |
| DOIs | |
| Publication status | Published - 2023 |
| Event | 2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023 - Nashville, United States Duration: 29 Oct 2023 → 2 Nov 2023 |
Conference
| Conference | 2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023 |
|---|---|
| Country/Territory | United States |
| City | Nashville |
| Period | 29/10/2023 → 02/11/2023 |
| Sponsor | COMSOL, DELTA, et al., Hitachi, John Deere, Oak Ridge National Laboratory |
| Series | IEEE Energy Conversion Congress and Exposition |
|---|---|
| ISSN | 2329-3721 |
Bibliographical note
Publisher Copyright:© 2023 IEEE.
Keywords
- Condition monitoring
- electric vehicle
- junction temperature
- power semiconductor
- thermo-sensitive electrical parameter (TSEP)