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.

Analytical model for armature reaction of outer rotor brushless permanent magnet DC motor

2018 ◽  
Vol 12 (5) ◽  
pp. 651-657 ◽  
Author(s):  
Conggan Ma ◽  
Qing Li ◽  
Haifeng Lu ◽  
Yuewen Liu ◽  
Haibo Gao
Keyword(s):  
Permanent Magnet ◽  
Analytical Model ◽  
Dc Motor ◽  
Armature Reaction ◽  
Outer Rotor ◽  
Permanent Magnet Dc Motor
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