Abstract
Requirements for electric vehicle (EV) propulsion systems—i.e., power density, switching frequency and cost—are becoming more stringent, while high reliability also needs to be ensured to maximize a vehicle’s life-cycle. Thus, the incorporation of a thermal management strategy is convenient, as most power inverter failure mechanisms are related to excessive semiconductor junction temperatures. This paper proposes a novel thermal management strategy which smartly varies the switching frequency to keep the semiconductors’ junction temperatures low enough and consequently extend the EV life-cycle. Thanks to the proposal, the drivetrain can operate safely at maximum attainable performance limits. The proposal is validated through simulation in an advanced digital platform, considering a 75-kW in-wheel Interior Permanent Magnet Synchronous Machine (IPMSM) drive fed by an automotive Silicon Carbide (SiC) power converter.
| Original language | English |
|---|---|
| Article number | 8024 |
| Pages (from-to) | 1-14 |
| Number of pages | 14 |
| Journal | Applied Sciences (Switzerland) |
| Volume | 10 |
| Issue number | 22 |
| DOIs | |
| Publication status | Published - 12 Nov 2020 |
Keywords
- Electric vehicle
- Reliability
- SiC
- Thermal management
Project and Funding Information
- Project ID
- info:eu-repo/grantAgreement/EC/H2020/783174 /EU/High performant Wide Band Gap Power Electronics for Reliable, energy eFficient drivetrains and Optimization thRough Multi-physics simulation/HiPERFORM
- Funding Info
- This work has been supported in part by the European Commission through ECSEL Joint Undertaking_x000D_(JU) under Grant Agreement No. 783174 (HiPERFORM project), by the Government of the Basque Country within_x000D_the research program ELKARTEK as the projects ELPIVE (KK-2019/0006) and ENSOL 2 (KK-2020/00077), by the_x000D_Government of the Basque Country within the fund for research groups of the Basque University system IT978-16,_x000D_by the Government of Spain through the Agencia Estatal de Investigación Project DPI2017-85404-P, and by the_x000D_Generalitat de Catalunya through the Project 2017 SGR 872.
