scholarly journals Electromagnetic and Thermal Analysis of Permanent Magnet Machines

10.5772/38777 ◽  
2012 ◽  
Author(s):  
Nicola Bianchi ◽  
Massimo Barcaro ◽  
Silverio Bolognani
Keyword(s):  
Thermal Analysis ◽  
Permanent Magnet ◽  
Permanent Magnet Machines

Electromagnetic and Thermal Analysis of Open-Circuit Air Cooled High-Speed Permanent Magnet Machines With Gramme Ring Windings

2014 ◽  
Vol 50 (11) ◽  
pp. 1-4 ◽  
Author(s):  
Jianning Dong ◽  
Yunkai Huang ◽  
Long Jin ◽  
Baocheng Guo ◽  
Heyun Lin ◽  
...  
Keyword(s):  
Thermal Analysis ◽  
Permanent Magnet ◽  
High Speed ◽  
Open Circuit ◽  
Permanent Magnet Machines

A novel analytical calculation of magnetic field in the slotted air gap of spoke-type permanent-magnet machines using conformal mapping

2020 ◽  
pp. 1-15
Author(s):  
Jianqi Li ◽  
Yu Zhou ◽  
Jianying Li
Keyword(s):  
Magnetic Field ◽  
Conformal Mapping ◽  
Permanent Magnet ◽  
Flux Density ◽  
Analytical Method ◽  
Electromotive Force ◽  
Analytical Calculation ◽  
Air Gap ◽  
Permanent Magnet Machines ◽  
Peak Value

This paper presented a novel analytical method for calculating magnetic field in the slotted air gap of spoke-type permanent-magnet machines using conformal mapping. Firstly, flux density without slots and complex relative air-gap permeance of slotted air gap are derived from conformal transformation separately. Secondly, they are combined in order to obtain normalized flux density taking account into the slots effect. The finite element (FE) results confirmed the validity of the analytical method for predicting magnetic field and back electromotive force (BEMF) in the slotted air gap of spoke-type permanent-magnet machines. In comparison with FE result, the analytical solution yields higher peak value of cogging torque.

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