Magnet Field Finite Element Analysis of Permanent Magnet Brushless DC Motors Based on ANSOFT

2014 ◽  
Vol 904 ◽  
pp. 504-507
Author(s):  
Cai Hong Zhu ◽  
Hong Tao Zhang

2D whole field finite element method (FEM) based on ANSOFT software was adapted, and the magnetic field distribution of permanent-magnet brushless DC motor (BLDC) were calculated. The above discussion can provide reliable theory foundation for the reasonable establishment of nonlinear model BLDC and the further exploitation and application.

2011 ◽  
Vol 110-116 ◽  
pp. 4661-4668
Author(s):  
S. Neethu ◽  
K.S. Shinoy ◽  
A.S. Shajilal

This paper presents the Finite Element Analysis (FEA) based design, optimization and development of an axial flux permanent magnet brushless DC motor for Left Ventricular Assist Device (LVAD). With the design objective of improving the existing motor's efficiency , different topologies of AFPM machine has been examined. Selection of optimal magnet frac-tion, Halbach arrangement of rotor magnets and the use of Soft Magnetic Composite (SMC) material for the stator core results in a novel motor with improved efficiency and torque profile. The results of the 3D Finite element analysis for the novel motor have been shown.Thermal analysis for the existing motor has also been done and the FEA results are compared with the analytical and experimental results.Finally the test results for the novel motor and the general conclusions are also discussed.


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