Fast Rotor Loss Calculations in Fractional-Slot Permanent Magnet Machines

The COMSOL model enables the user to calculate the eddy current losses in the rotor of the permanent magnet machines. The detailed explanation of the model can be found in the linked reference paper.<br>Main purpose is to show how eddy current losses of different frequencies in the rotor can be evaluated with a single frequency domain calculation, provided they arise from a single time harmonic frequency in the stator. This method speeds up the rotor loss calculation significantly, albeit at the cost of reduced accuracy.For comparison purposes, time domain model and a frequency domain model are uploaded.