Implementation of an Improved Disk-Type Magnetic Levitated Motor

Author

Yaow-Ming Chen ; Shu-Yuan Fan ; Geeng-Kwei Chang ; Wie-Shin Lu

Author_Institution

Dept. of Electr. Eng., Nat. Chung Chen Univ., Ming-Hsiung

fYear

2006

fDate

18-22 June 2006

Firstpage

1

Lastpage

6

Abstract

An improved structure of an experimental disk-type magnetically levitated motor (MLM) is proposed in this paper. The MLM is a three-phase ac type motor with eighteen laminated steel cores. Compared with the previously designed MLM (PMLM), the improved structure has a trapezoid iron block added on the top of each laminated thin steel core to provide better magnetic paths. The improved MLM (IMLM) has short start-up response time where it takes less than 2 seconds to reach its final stable speed. Beside, the rotational speed of the plate is very stable. The 2D finite element analysis method has been used to illustrate the magnetic flux distribution of the IMLM and PMLM. Experimental measurements are also provided and the results show that the IMLM has less speed variation, higher efficiency and better load regulation

Keywords

finite element analysis; linear induction motors; magnetic cores; magnetic levitation; 2D finite element analysis method; disk-type magnetic levitated motor; laminated steel cores; magnetic flux distribution; three-phase ac type motor; trapezoid iron block; AC motors; Delay; Finite element methods; Iron; Magnetic analysis; Magnetic cores; Magnetic flux; Magnetic levitation; Steel; Velocity measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 2006. PESC '06. 37th IEEE

Conference_Location

Jeju

ISSN

0275-9306

Print_ISBN

0-7803-9716-9

Type

conf

DOI

10.1109/PESC.2006.1712167

Filename

1712167