Analysis and simulation of a 7-phase PM bearingless motor

Author

Li, Bingnan ; Huang, Jin ; Kang, Min ; Jiang, Haibo

Author_Institution

Sch. of Electr. Eng., Zhejiang Univ., Hangzhou, China

fYear

2011

fDate

20-23 Aug. 2011

Firstpage

1

Lastpage

5

Abstract

A multiphase bearingless motor with single set of winding has simpler construction, higher power ratings with lower voltage limited devices and better fault tolerance. Additionally, comparing with the traditional surface-mounted PM rotor configuration, there are more advantages for the interior PM rotor configuration, such as, larger suspension force with the increased inductance of suspension winding, avoiding the falling-off of PM during the high speed revolving. Taking a 7-phase interior PM bearingless motor (IPMBLM) for example, the derived general analytical model of inductance matrices is proposed and FEA simulation results validated the proposed model. Additionally, the SIMULINK simulation results certify the feasibility of the IPMBLM.

Keywords

finite element analysis; machine bearings; permanent magnet motors; FEA simulation; SIMULINK simulation; fault tolerance; inductance matrices; interior PM bearingless motor; multiphase bearingless motor; surface mounted PM rotor configuration; Force; Inductance; Rotors; Stator windings; Suspensions; Windings;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems (ICEMS), 2011 International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4577-1044-5

Type

conf

DOI

10.1109/ICEMS.2011.6073735

Filename

6073735