Abstract
This paper investigates the loss and temperature field distributions of a consequent-pole hybrid excited vernier machine (CPHEVM) with dc field windings embedded between the modulating poles. The time-stepping finite-element method is utilized to analyze the losses in consideration of rotating magnetic flux excitation. A 3-D coupled fluid heat transfer model totally packaged in a large air region is established based on the finite volume method to obtain precise temperature rise distribution. A 12-slot/70-pole CPHEVM, which has high torque density and good flux-weakening capability, is taken as an example to reveal the variation patterns of loss and temperature rise under different dc excitations.
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