Reduced Thermal Model of an Induction Machine for Real-Time Thermal Monitoring
Jaljal, N.
Trigeol, J.-F.
Lagonotte, P.
Tech. Res. Center of Peugeot-Citroen, La Garenne-Colombes;
This paper appears in: Industrial Electronics, IEEE Transactions on
Publication Date: Oct. 2008
Volume: 55,
Issue: 10
On page(s): 3535-3542
ISSN: 0278-0046
Digital Object Identifier: 10.1109/TIE.2008.2003196
First Published: 2008-08-19
Current Version Published: 2008-09-30
Abstract An electric machine submitted to dissipations and a too high temperature can generate irreversible damage. A reduced thermal model allows us to monitor the critical points of the machine. The thermal modeling of the machine adopted here results from the association of two methods: a nodal approach which models the diffusion in the structure and a computational fluid dynamics (CFD) approach which characterizes the convective heat exchanges which operate in the end cavities. A methodology of reduction is proposed and applied to the thermal model of a 5.5-kW two-pole induction machine to obtain a reduced four-node model for real-time thermal monitoring.
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