Loss Calculation and Analysis of Efficient Permanent Magnet Coupler

doi:10.12068/j.issn.1005-3026.2017.11.002

Abstract

Abstract: In allusion to the problems of electromagnetic loss of the permanent magnet coupler(PMC)， a 1MW efficient PMC was utilized. Based on the theoretical analysis of loss and the theory of eddy current field， a three-dimensional finite element model of the eddy current field is established. The time-stepping finite element method is used to detailedly analyze and calculate the copper plate loss， permanent magnet eddy current loss and the torque of PM back iron of the 1MW PMC.The correctness and practicability of the analysis and calculation are validated by the experiment analysis and finite element simulation. Finally， the influence of the segmented permanent magnet on the eddy current loss is analyzed. It provides the theoretical basis for the efficiency analysis， heat dissipation design and loss optimization of PMC.

Key words: copper plate loss, permanent magnet eddy current loss, steel plate thickness, finite element, piecewise permanent magnets

CLC Number:

TP215

YU Lin-xin， WANG Da-zhi， LI Shuo， ZHENG Di. Loss Calculation and Analysis of Efficient Permanent Magnet Coupler[J]. Journal of Northeastern University Natural Science, 2017, 38(11): 1524-1529.

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