Title :
Thermal Model With Winding Homogenization and FIT Discretization for Stator Slot
Author :
Idoughi, Laïd ; Mininger, Xavier ; Bouillault, Frédéric ; Bernard, Laurent ; Hoang, Emmanuel
Author_Institution :
LGEP, Univ. Paris-Sud 11, Gif-sur-Yvette, France
Abstract :
The aim of the method detailed in this paper is to get an equivalent thermal model of a stator slot, in order to simplify the calculation of desired temperatures in an electrical machine winding. This study is divided in two steps: First, the equivalent thermal conductivity is deduced from a homogenization of the winding, and next, a discretization is achieved using the finite integration technique considering transient analysis. In order to evaluate the method, results from the equivalent model are compared with finite element simulations considering two slot geometries.
Keywords :
finite element analysis; heat treatment; integration; stators; thermal conductivity; transient analysis; electrical machine winding; equivalent thermal conductivity; equivalent thermal model; finite element simulations; finite integration technique discretization; stator slot; transient analysis; winding homogenization; Actuators; Finite element methods; Machine windings; Thermal conductivity; Transient analysis; Effective properties; homogenization; numerical techniques; thermal model;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2011.2159013
