A SiC-Based Liquid-Cooled Electric Vehicle Traction Inverter Operating at High Ambient Temperature

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dc.contributor.authorZhang, Chien
dc.contributor.authorSrdic, Srdjanen
dc.contributor.authorLukic, Srdjanen
dc.contributor.authorWang, Junen
dc.contributor.authorBurgos, Rolandoen
dc.date.accessioned2023-02-21T14:56:34Zen
dc.date.available2023-02-21T14:56:34Zen
dc.date.issued2022-06-30en
dc.date.updated2023-02-18T04:08:47Zen
dc.description.abstractThis paper describes the design process of a high-power-density 100 kW (34 kW/L) traction inverter for electric vehicles, operating at an ambient temperature of 105 °C. A detailed thermal analysis is performed based on the thermal behavior of the switching devices, and the results are used to estimate the semiconductor device junction temperature and to determine the requirements of the cooling system to achieve the target power level. A high-temperature gate drive board aiming for reliable system operation in electric vehicles is developed. An overcurrent protection scheme based on parasitic inductance between the power source and the Kelvin source of the power module has been implemented. A dc-link decoupling snubber circuit is designed numerically based on a detailed forth-order high-frequency equivalent circuit of a double pulse test circuit. The approach to optimize the snubber circuit, not only for the voltage spike suppression but also for good thermal performance, is proposed. Finally, a hardware prototype with SiC power modules has been built and tested at 60 kW continuous power and 100 kW for 20 seconds at 105 °C ambient temperature and 65 °C inlet coolant temperature.en
dc.description.versionPublished versionen
dc.format.extentPages 160-175en
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.24295/cpsstpea.2022.00015en
dc.identifier.issn2475-742Xen
dc.identifier.issue2en
dc.identifier.orcidBurgos, Rolando [0000-0003-0570-2768]en
dc.identifier.urihttp://hdl.handle.net/10919/113887en
dc.identifier.volume7en
dc.language.isoenen
dc.publisherChina Power Supply Societyen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectElectric vehiclesen
dc.subjectHigh power densityen
dc.subjectHigh temperatureen
dc.subjectSiCen
dc.subjectTraction inverteren
dc.titleA SiC-Based Liquid-Cooled Electric Vehicle Traction Inverter Operating at High Ambient Temperatureen
dc.title.serialCPSS Transactions on Power Electronics and Applicationsen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten
pubs.organisational-group/Virginia Techen
pubs.organisational-group/Virginia Tech/Engineeringen
pubs.organisational-group/Virginia Tech/Engineering/Electrical and Computer Engineeringen
pubs.organisational-group/Virginia Tech/All T&R Facultyen
pubs.organisational-group/Virginia Tech/Engineering/COE T&R Facultyen

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