Title :
Exact analytical method for air-gap main magnetic field computation and cogging torque of surface-mounted permanent-magnet motors
Author :
Jing, L. ; Liu, L.
Author_Institution :
Coll. of Electr. Eng. & New Energy, Three Gorges Univ., Yichang, China
Abstract :
The optimization design of a surface-mounted permanent magnet motor is presented in this study by computing the air-gap magnetic field distribution and cogging torque. Calculation of the magnetic field distribution is performed using Laplace or Poisson equations. To compute the electromagnetic torque, the virtual displacement and Maxwell stress methods are employed. Finite element analysis is also performed to validate the results.
Keywords :
Laplace equations; Maxwell equations; Poisson equation; design engineering; finite element analysis; magnetic fields; optimisation; permanent magnet motors; torque; Laplace equations; Maxwell stress method; Poisson equations; air-gap magnetic field distribution; cogging torque; electromagnetic torque; finite element analysis; optimization design; surface-mounted permanent-magnet motors; virtual displacement method; Air gaps; DC motors; Forging; Magnetic fields; Permanent magnet motors; Permanent magnets; Torque;
Conference_Titel :
Magnetics Conference (INTERMAG), 2015 IEEE
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-7321-7
DOI :
10.1109/INTMAG.2015.7156687
