Determination of Thermal Contact Resistances for Small TENV Electrical Machine

In this paper, a thermal study of Synchronous Reluctant motor is proposed. A specific experimental method is applied in order to identify the thermal parameters, this method focus on the study of contact resistances and total thermal capacity. Generally, in the classical thermal modeling, the thermal contact resistance (TCR) is estimated by empirical values and the thermal capacities are calculated by analytical solutions. The originality of the proposed model is based on the complementarity between experimental procedure (machine at rest), thermal modeling and model reduction technique in order to determine these important parameters and validate results (thermal contact resistances and capacities).