This book focuses on the development of a thermal modeling with analytical models for the
design of electrical machines. It concerns more particularly machine with permanent magnets.
The methods used to determine the critical parameters of thermal modeling are presented first.
We then present the complete thermal model that has been developed and confronted with
experimental results. This model has very good accuracy and has allowed us to study the effect
of different topological variations on the thermal behavior. It was also possible to analyze and
compare different cooling strategies. This model can easily be integrated into an optimization
process to determine the maximum permissible losses of a given configuration, or to define the
cooling method to use. Based on the same principles, we proposed a new model to simulate the
thermal exchanges between the conductors in the slots. This model allows us to appreciate the
randomness of the arrangement of the conductors in the coil. It can be paired with a more
comprehensive model of the machine in order to refine the resolution of the latter and ensure a
more accurate analysis of the thermal behavior of the coils.
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