Design and Analysis of A High Specific Power Outer Rotor Surface Mounted Permanent Magnet Machine Equipped with Additively Manufactured Windings

2021 ◽  
Author(s):  
Ali Al-Qarni ◽  
Ayman EL-Refaie ◽  
Fan Wu
Keyword(s):  
Permanent Magnet ◽  
Specific Power ◽  
Permanent Magnet Machine ◽  
Outer Rotor ◽  
High Specific Power ◽  
Rotor Surface

scholarly journals Improved Analytical Model of an Outer Rotor Surface Permanent Magnet Machine for Efficiency Calculation with Thermal Effect

2017 ◽  
Vol 6 (1) ◽  
pp. 34-46 ◽  
Author(s):  
Kesavan Ramakrishnan ◽  
Pietro Romanazzi ◽  
Damir Zarko ◽  
Giampiero Mastinu ◽  
David A. Howey ◽  
...  
Keyword(s):  
Permanent Magnet ◽  
Thermal Effect ◽  
Analytical Model ◽  
Permanent Magnet Machine ◽  
Efficiency Calculation ◽  
Outer Rotor ◽  
Rotor Surface

scholarly journals Exact Two-Dimensional Analytical Calculations for Magnetic Field, Electromagnetic Torque, UMF, Back-EMF, and Inductance of Outer Rotor Surface Inset Permanent Magnet Machines

2019 ◽  
Vol 24 (1) ◽  
pp. 24 ◽  
Author(s):  
AmirAbbas Vahaj ◽  
Akbar Rahideh ◽  
Hossein Moayed-Jahromi ◽  
AliReza Ghaffari
Keyword(s):  
Permanent Magnet ◽  
Analytical Model ◽  
Permanent Magnets ◽  
Optimization Problems ◽  
Magnetic Flux Density ◽  
Permanent Magnet Machines ◽  
Two Dimensional ◽  
Electromagnetic Torque ◽  
Outer Rotor ◽  
Rotor Surface

This paper presents a two-dimensional analytical model of outer rotor permanent magnet machines equipped with surface inset permanent magnets. To obtain the analytical model, the whole model is divided into the sub-domains, according to the magnetic properties and geometries. Maxwell equations in each sub-domain are expressed and analytically solved. By using the boundary/interface conditions between adjacent sub-regions, integral coefficients in the general solutions are obtained. At the end, the analytically calculated results of the air-gap magnetic flux density, electromagnetic torque, unbalanced magnetic force (UMF), back-electromotive force (EMF) and inductances are verified by comparing them with those obtained from finite element method (FEM). One of the merits of this method in comparison with the numerical model is the capability of rapid calculation with the highest precision, which made it suitable for optimization problems.

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