A Performance Study on a Permanent Magnet Spherical Motor

Author

Hyun-Jong Park ; Ho-Joon Lee ; Su-Yeon Cho ; Han-Woong Ahn ; Ki-Doek Lee ; Chan-Yeop Park ; Sung-Hong Won ; Ju Lee

Author_Institution

Hanyang Univ., Seoul, South Korea

Volume

49

Issue

5

fYear

2013

fDate

May-13

Firstpage

2307

Lastpage

2310

Abstract

To realize the multi-Degree-of-Freedom (multi-DOF) movement, researches on spherical motor have been conducted in many countries. The Spherical motor has a 3-DOF, whose shaft can not only rotate as rotary motor but also tilt in the 2-DOF space. Researches on spherical motor will greatly contribute to 3-DOF systems, because spherical motor can reduce the size and weight of 3-DOF systems. This paper studies a new type of spherical motor that has rotating coils and tilting coils. Also, the current function depending on shaft angles is proposed. Finally, the torque is calculated corresponding to different shaft angles and rotating speeds. Moreover, these performances are validated via experiments.

Keywords

coils; permanent magnet motors; shafts; 2-DOF space; 3-DOF systems; multiDOF movement; multidegree-of-freedom movement; performance study; permanent magnet spherical motor; rotary motor; rotating coils; rotating speeds; shaft angles; spherical motor; tilting coils; 3-DOF (3-degree-of-freedom) motor; 3-DOF system; motor control; spherical motor;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2013.2238616

Filename

6514512