A new flux-linkage model for bearingless switched reluctance motor

Author

Cai, Jun ; Deng, Zhiquan ; Liu, Zheyuan ; Yao, Tian ; Mao, Yuyang

Author_Institution

Aero-Power Sci-Tech Center, Nanjing Univ. of Aeronaut. & Astronaut., Nanjing, China

fYear

2009

fDate

25-27 Sept. 2009

Firstpage

250

Lastpage

254

Abstract

Accurate calculation of the flux linkage characteristics is the basis of design and control of bearingless switched reluctance motor (BSRM). In this paper, flux linkage of main-and suspended windings for a BSRM were calculated by using 3D finite element method (FEM). A new subregional fitting algorithm was proposed and a novel mathematical model of flux linkage was built by using Fourier series and Levenberg-Marquardt(LM) optimization method. Based on the new model, the incremental inductance, back-EMF factor and instantaneous torque were obtained. This will provide important theoretical basis for the analysis, design and control of the BSRM.

Keywords

finite element analysis; optimisation; reluctance motors; 3D finite element method; FEM; Fourier series; Levenberg-Marquardt optimization method; back-EMF factor; bearingless switched reluctance motor; flux-linkage model; instantaneous torque; Coils; Couplings; Finite element methods; Magnetic analysis; Magnetic levitation; Optimization methods; Reluctance machines; Reluctance motors; Stator windings; Torque; BRSM; finite element method; fitting; flux linkage; optimization;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Superconductivity and Electromagnetic Devices, 2009. ASEMD 2009. International Conference on

Conference_Location

Chengdu

Print_ISBN

978-1-4244-3686-6

Electronic_ISBN

978-1-4244-3687-3

Type

conf

DOI

10.1109/ASEMD.2009.5306646

Filename

5306646