Investigation on the performance of a small sized PM type stepping motor with a newly structured claw-poles

Issue title: Proceedings from the 16th International Symposium on Applied Electromagnetics and Mechanics (ISEM 2013)

Guest editors: Xavier Maldague and Toshiyuki Takagi

Article type: Research Article

Authors: Rhyu, Se-Hyun^a

Affiliations: [a] Intelligent Mechatronics Research Center, KETI, Bucheon, Gyeonggi-do 420-140, Korea. Tel.: +82 32 621 2848; Fax: +82 32 621 2855; E-mail: rhyush@keti.re.kr | Université Laval, Canada | Tohoku University, Japan

Abstract: This paper presents the dynamic characteristic analysis of a small sized permanentmagnet (PM) type stepping motor with newly structured claw-poles. First, the motor parameter is derived by PM analyzing torque and back-EMF using the 3-D finite element analysis (FEA) taking account magnetization of PM. Next, the dynamic characteristic of a small sized motor is calculated by magnetic circuit equation coupled with 3-D FEA. Specially, we propose a test method of step response for a small sized PM type stepping motor using a position sensitive detection (PSD) sensor. From the simulation and test results, it is shown that the proposed dynamic characteristic analysis method has usability for a very small sized motors.

Keywords: PM type stepping motor, PSD sensor, dynamic characteristics

DOI: 10.3233/JAE-141820

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 45, no. 1-4, pp. 115-122, 2014