Title :
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
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;
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
DOI :
10.1109/ASEMD.2009.5306646
