Switched reluctance machines (SRMs) have recently become popular in the automotive market as they are a good alternative to the permanent magnet machines commonly employed for an electric powertrain. Lumped parameter thermal networks are usually used for thermal analysis of motors due to their low computational cost and relatively accurate results. A critical aspect to be modelled is the rotor-stator air-gap heat transfer, and this is particularly challenging in an SRM due to the salient pole geometry. This work presents firstly a review of the literature including the most relevant correlations for this geometry, and secondly, numerical CFD simulations of air-gap heat transfer for a typical configuration. A new correlation has been derived: Nu = 0.181 Tam0.207.
Air-gap convection in a switched reluctance machine
2015-03-01
4616136 byte
Conference paper
Electronic Resource
English
A Novel Unidirectional Switched Reluctance Machine
SAE Technical Papers | 1993
|Switched-Reluctance-Fahrzeugantriebe
Tema Archive | 1998
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