scholarly journals Eddy current loss calculation and thermal analysis of axial-flux permanent magnet couplers

AIP Advances ◽  
2017 ◽  
Vol 7 (2) ◽  
pp. 025117 ◽  
Author(s):  
Di Zheng ◽  
Dazhi Wang ◽  
Shuo Li ◽  
Tongyu Shi ◽  
Zhao Li ◽  
...  
Keyword(s):  
Thermal Analysis ◽  
Permanent Magnet ◽  
Eddy Current ◽  
Eddy Current Loss ◽  
Axial Flux ◽  
Current Loss ◽  
Loss Calculation

Eddy Current Loss Calculation for Permanent Magnet Eddy-current Coupler

2020 ◽  
Author(s):  
Wei Liu ◽  
Sitong Liu ◽  
Xikang Cheng ◽  
Weiqi Luo ◽  
Ziliang Tan ◽  
...  
Keyword(s):  
Permanent Magnet ◽  
Eddy Current ◽  
Eddy Current Loss ◽  
Current Loss ◽  
Loss Calculation

scholarly journals Design of Axial Flux Type Permanent Magnet Coupling with Halbach Magnet Array for Optimal Performance Considering Eddy Current Loss Reduction Using 3-D Finite Element Method

2018 ◽  
Vol 7 (3.34) ◽  
pp. 184
Author(s):  
Gang Hyeon Jang ◽  
Sung Won Seo ◽  
Chang Woo Kim ◽  
Kyung Hun Shin ◽  
Junghyo Nah ◽  
...  
Keyword(s):  
Finite Element ◽  
Permanent Magnet ◽  
Eddy Current ◽  
Design Method ◽  
Eddy Current Loss ◽  
Outer Radius ◽  
Loss Reduction ◽  
3D Fem ◽  
Axial Flux ◽  
Current Loss

Background/Objectives: This study proposes and verifies a design method that considers the permanent magnet (PM) loss reduction of axial flux permanent magnet coupling (PMC), to replace mechanical coupling.Methods/Statistical analysis: In this study, the design of an axial magnetic flux PMC is performed using a three–dimensional (3D) commercial finite element (FEM) analysis program, and an optimum design is performed through parametric analysis. In addition, we designed a PMC that minimizes loss by analyzing the PM eddy current loss when using divided magnets.Findings: We found that some parameters (thickness of the PM, number of poles, ratio of inner radius to outer radius) act on the magnetic torque of the axial flux coupling. Using these results, we could obtain the design point. Further, to reduce the PM eddy current loss in the designed coupling, we used the PMs divided radially and circumferentially to obtain the magnet shape to minimize the loss. In addition, the fabricated coupling proved that the design results of the 3D FEM matched with the experimental results.Improvements/Applications: We propose an optimal design method of an axial flux PMC using 3D FEM, and a method to reduce eddy current loss using divided magnets 

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