Magnetic field analysis of a PM spherical actuator

Author

Yanyan Meng ; Weihai Chen ; Haihong Wang ; Jingmeng Liu

Author_Institution

Sch. of Autom. Sci. & Electr. Eng., Beijing Univ. of Aeronaut. & Astronaut., Beijing, China

fYear

2012

fDate

25-27 July 2012

Firstpage

63

Lastpage

68

Abstract

This paper presents a three-DOF permanent spherical actuator, with precise measurement system. As magnetic model is very useful to torque model and control model, magnetic model is the basis of spherical actuator study. A new analytical magnetic field model is presented for the proposed 3-DOF spherical actuator in this paper. This analytical magnetic field method combines the Laplace equation with the equivalent magnetic charge law, which is simple and accurate. Finally, we apply the finite-element magnet analysis method to verify the accuracy of the proposed analytical method.

Keywords

Laplace equations; actuators; finite element analysis; magnetic field effects; measurement systems; permanent magnet machines; 3-DOF spherical actuator; Laplace equation; PM spherical actuator; analytical magnetic field model; control model; equivalent magnetic charge law; finite-element magnet analysis method; magnetic model; precise measurement system; three-DOF permanent spherical actuator; torque model; Actuators; Magnetic fields; Magnetic flux; Magnetic resonance imaging; Mathematical model; Permanent magnets; Rotors; Equivalent magnetic charge; Laplace equation; Magnetic field model; Mirror current law; Spherical actuator;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Informatics (INDIN), 2012 10th IEEE International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4673-0312-5

Type

conf

DOI

10.1109/INDIN.2012.6301220

Filename

6301220