Lotfi, Abdelhakim SZE
Thermal Modeling Strategy for Permanent Magnet Synchronous Motors
The main objective of our task is to develop mathematical models, numerical techniques to analyse the thermal effects in electric machines, to implement the developed algorithm in multiprocessor or multi-core environments and apply them to industrial use cases. In this study, we take into account coupled character of the electromagnetic and thermal features of the physical process: the electromagnetic losses generate heat in windings and iron parts, this causes change of electromagnetic material properties, which is taken into account at electromagnetic simulations. Both thermal and electromagnetic processes are considered transient, solved by means of the FEM method on independent meshes and the time-discretization is realized using time operator splitting. Two examples are presented to assess the accuracy of the developed coupled solvers and the numerical results are compared with the experimental ones, which are obtained from a prototype machine.
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