This paper presents a high-speed drive to be used for electrically-assisted turbo charging in an internal combustion engine. The electrification of the turbo-charger system can enhance the performance and reduce the dynamic drawbacks that affect conventional solutions i.e. turbo-lag. However, the design of the electric drive presents some challenges, especially related to the thermally aggressive environment and the high rotational speed. Therefore, a system level design approach needs to be adopted, where all the different sub-systems of the drive are addressed simultaneously. Thus, this paper includes considerations for the thermal and electromagnetic machine design. Furthermore, a voltage source inverter featuring wide-bandgap SiC power devices is described, and a sensorless rotor position detection and digital control is used to drive the machine. Finally, the test setup and preliminary experimental results are presented.
A high-speed electric drive for the more electric engine / Lusignani, Davide; Barater, Davide; Franceschini, Giovanni; Buticchi, Giampaolo; Galea, Michael; Gerada, Chris. - (2015), pp. 4004-4011. (Intervento presentato al convegno 7th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2015 tenutosi a Palais des Congres de Montreal (Montreal Convention Centre), can nel 2015) [10.1109/ECCE.2015.7310225].
A high-speed electric drive for the more electric engine
Barater, Davide;Franceschini, Giovanni;
2015
Abstract
This paper presents a high-speed drive to be used for electrically-assisted turbo charging in an internal combustion engine. The electrification of the turbo-charger system can enhance the performance and reduce the dynamic drawbacks that affect conventional solutions i.e. turbo-lag. However, the design of the electric drive presents some challenges, especially related to the thermally aggressive environment and the high rotational speed. Therefore, a system level design approach needs to be adopted, where all the different sub-systems of the drive are addressed simultaneously. Thus, this paper includes considerations for the thermal and electromagnetic machine design. Furthermore, a voltage source inverter featuring wide-bandgap SiC power devices is described, and a sensorless rotor position detection and digital control is used to drive the machine. Finally, the test setup and preliminary experimental results are presented.
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