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This paper proposed an electromagnetic-thermal-fluidic coupling model for the accurate evaluation of electromagnetic and thermal performance of a permanent magnet synchronous machine. 2-D transient finite-element method is used to investigate electromagnetic loss including copper loss, iron loss, and magnet eddy loss. The calculated electromagnetic power loss is taken as the main source of the thermal-fluidic field and the materials property is in turn updated according to the temperature distribution. The simulation result of a rated 8 kW permanent magnetic machine is compared with the measured result, which validates the accuracy of the proposed model.
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Jiang et al. (2017) studied this question.
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