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首页> 外文期刊>IEEE Transactions on Energy Conversion >Loss Calculation and Thermal Analysis for Nine-Phase Flux Switching Permanent Magnet Machine
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Loss Calculation and Thermal Analysis for Nine-Phase Flux Switching Permanent Magnet Machine

机译：Loss Calculation and Thermal Analysis for Nine-Phase Flux Switching Permanent Magnet Machine

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摘要

This paper investigates the accurate loss calculation and thermal analysis for a nine-phase flux switching permanent magnet (FSPM) machine. First, the 3 D finite element method (FEM) model is developed to calculate the PM eddy current loss, in which magnet axial segmentation is taken into account. In order to calculate the iron loss quickly and precisely, the magnetic flux leakage coefficient is proposed in this paper to modify the 2 D calculation model of iron loss. Both the dc-biased magnetic induction and the rotational magnetization are taken into account. Then, the key parameters for thermal modeling, such as the convective heat-transfer coefficient between external frame and ambient, and the coefficient of convection heat transfer in the end region, are derived, based on which a dissymmetric 3 D FEM are used for thermal calculation of nine-phase FSPM machine. Finally, experiments on a prototype machine at the rated generation operation condition are carried out to verify the effectiveness of the developed model.

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