Applicable detent force reduction methods in steel-cored Permanent Magnet Linear Synchronous Motor based on manufacturing feasibility

Article type: Research Article

Authors: Jung, Sang-Yong^{a; *} | Jung, Hyun-Kyo^a

Affiliations: [a] Electromechanics Laboratory, ENG420-040, School of Electrical Engineering and Computer Science, San 56-1, Shillim-Dong, Kwanak-Gu, Seoul, Korea, 151-744

Correspondence: [*] Corresponding author

Abstract: This paper reports the methodological approaches to detent force reduction in the steel-cored Permanent Magnet Linear Synchronous Motor (PMLSM). For the detail investigations and overviews on the detent force, analytic solutions considering the various reluctances in the air-gap were obtained using the Space Harmonic Method. The validity of this method was confirmed by comparing the results of the FEM. With the thorough investigation of the causes of detent force, the reduction methods that minimize the force ripple under the consideration of manufacturing feasibility are introduced, and certified by experimentation of the test machine.

DOI: 10.3233/JAE-2004-293

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 20, no. 2, pp. 57-70, 2004