RT Journal Article
T1 Novel thermal management strategy for improved inverter reliability in electric vehicles
A1 Trancho, Elena
A1 Ibarra, Edorta
A1 Prieto, Pablo
A1 Arias, Antoni
A1 Lis, Adrian
A1 Pai, Ajay Poonjal
AB 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.
SN 2076-3417
YR 2020
FD 2020-11-12
LA eng
NO Trancho , E , Ibarra , E , Prieto , P , Arias , A , Lis , A & Pai , A P 2020 , ' Novel thermal management strategy for improved inverter reliability in electric vehicles ' , Applied Sciences (Switzerland) , vol. 10 , no. 22 , 8024 , pp. 1-14 . https://doi.org/10.3390/app10228024 , https://doi.org/10.3390/app10228024
NO Publisher Copyright: © 2020 by the authors. Licensee MDPI, Basel, Switzerland.
NO Funding: This work has been supported in part by the European Commission through ECSEL Joint Undertaking (JU) under Grant Agreement No. 783174 (HiPERFORM project), by the Government of the Basque Country within the research program ELKARTEK as the projects ELPIVE (KK-2019/0006) and ENSOL 2 (KK-2020/00077), by the Government of the Basque Country within the fund for research groups of the Basque University system IT978-16, by the Government of Spain through the Agencia Estatal de Investigación Project DPI2017-85404-P, and by the Generalitat de Catalunya through the Project 2017 SGR 872.
DS TECNALIA Publications
RD 23 jul 2024