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Assessment of Power Electronic Inverter Cooling Requirements for a Rear-Axle Drive
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| Author(s) |
Jonas OTTOSSON, Per KARLSSON |
| Abstract |
The work presented in this paper is focused on determining the cooling requirement and its effect onthe reliability of a power electronic inverter used in a rear-axle drive for a hybrid car. The coolingrequirements are determined through electro-thermal simulations. Several comparative electro-thermalsimulations are carried out for different levels of cooling, i.e. convection coefficients, power moduleintegration and mission profiles. The importance of taking the thermal coupling, between deviceswithin the power module, into account is discussed. The results obtained from the electro-thermalsimulations are used to estimate how the reliability is affected by the cooling requirements. Twodifferent reliability models are used to estimate the accumulated device damage. |
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| Filename: | 0180-epe2011-full-21502347.pdf |
| Filesize: | 1.218 MB |
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| Type |
Members Only |
| Date |
Last modified 2012-01-26 by System |
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