A design proposal of the machine utilizes high permeability magnet

Author

Nakamura, Y. ; Akatsu, K.

Author_Institution

Shibaura Inst. of Technol., Tokyo, Japan

fYear

2010

fDate

21-24 June 2010

Firstpage

1950

Lastpage

1955

Abstract

This paper describes permanent magnet synchronous motors with characteristics of bonded magnet. In general, most of PMSMs use the Nd-Fe-B sintered magnet. Because Nd-Fe-B sintered magnet have a high magnetic energy, it is possible to obtain a high torque and high output power. On the other hand, a magnetic energy of a bonded magnet is lower than that of a Nd-Fe-B sintered magnet. However, this magnet has higher permeability than a Nd-Fe-B sintered magnet and the eddy current is negligible. It is found that the flux weakening control is useful because of a high permeability. In this paper, three machines are proposed and compared these characteristics with the machine which uses Nd-Fe-B sintered magnet by the Finite Element Analysis (FEA).

Keywords

finite element analysis; magnetic flux; magnetic materials; magnetic permeability; permanent magnet motors; synchronous motors; bonded magnet; finite element analysis; flux weakening control; high permeability magnet machine; permanent magnet synchronous motor; Bonding; Eddy currents; Finite element methods; Magnetic analysis; Magnetic flux; Permanent magnet motors; Permeability; Power generation; Proposals; Torque; bonded magnet; flux weakening permanent-magnet synchronous motor;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Conference (IPEC), 2010 International

Conference_Location

Sapporo

Print_ISBN

978-1-4244-5394-8

Type

conf

DOI

10.1109/IPEC.2010.5543125

Filename

5543125