Conservatively designed, bulky, monolithic power modules have so far been characteristic elements of automotive traction inverters. These designs are not efficiently scalable. To support the long-term commercial viability of hybrid electric vehicles (HEVs) and electric vehicles (EVs), the US Department of Energy (DOE) published technical target requirements for the electrical drive train (motor, inverter, battery) of a 55 kW system for 2015 and 2020. To meet these requirements for a traction inverter, a significant step towards higher power density at the desired lifetime and acceptable cost is needed. However, vehicle mission profile and drive train architecture cause characteristic stress patterns on the power modules' semiconductor representing a limitation in life time. Advanced module and cooling design provides an answer. This paper provides examples of a new series of customized power module solutions that combine scalable, reliable and cost competitive power module packaging technologies with advanced liquid cooled thermal management solutions. Furthermore, an outlook is provided for further improvement potential in power density and reliability of this technology through scalable 3D module configurations and 2-phase liquid cooling.


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    Titel :

    Custom power module solutions for automotive traction inverters - the basis for lower cost, higher power density and improved reliability


    Beteiligte:
    Haumann, Siegbert (Autor:in) / Olesen, Klaus (Autor:in) / Holst, Jörgen (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2012


    Format / Umfang :

    11 Seiten, 20 Bilder, 1 Tabelle, 19 Quellen



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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