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A free-piston energy converter (FPEC) integrated by a combustion engine and a linear electric machine is suitable for series HEV or other applications stand-alone generators. The transverse-flux machine (TFM) is considered advantageous for such application because of its high specific power and force density [1]. The finite element method (FEM) is widely used in the machine analysis, which is time-consuming...
In finite element (FE) analysis of flux switching permanent magnet (FSPM) machine, there are several challenges due to the unique structure and principle. Firstly, the local flux density in stator and rotor teeth may reaches 2.5T or even higher [1]. However, high flux density range of B-H curve is difficult to measure and reasonable extrapolation is indispensible. Secondly, the region of permanent...
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