• ISSN 0258-2724
  • CN 51-1277/U
  • EI Compendex
  • Scopus
  • Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
  • Chinese S&T Journal Citation Reports
  • Chinese Science Citation Database
Volume 26 Issue 6
Dec.  2013
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Article Contents
SUN Xiaodong, CHEN Long, YANG Zebin, LI Feng, ZHU Huangqiu. Inductance Characteristics of Bearingless Permanent Magnet Synchronous Motor[J]. Journal of Southwest Jiaotong University, 2013, 26(6): 1059-1065. doi: 10.3969/j.issn.0258-2724.2013.06.014
Citation: SUN Xiaodong, CHEN Long, YANG Zebin, LI Feng, ZHU Huangqiu. Inductance Characteristics of Bearingless Permanent Magnet Synchronous Motor[J]. Journal of Southwest Jiaotong University, 2013, 26(6): 1059-1065. doi: 10.3969/j.issn.0258-2724.2013.06.014

Inductance Characteristics of Bearingless Permanent Magnet Synchronous Motor

doi: 10.3969/j.issn.0258-2724.2013.06.014
  • Received Date: 14 Nov 2011
  • Publish Date: 25 Dec 2013
  • In order to solve the problem that the inductance parameters of the bearingless permanent magnet synchronous motor (BPMSM) can not be measured accurately by experiments, the inductance characteristics of a two-pole surface-mounted BPMSM with four-pole suspension system was investigated using finite element analysis. According to the operation principle of the BPMSM, the static and incremental inductances were defined. On this basis, the static inductances of torque windings and suspension force windings in stator frame were studied, and the dq-axis static inductances in rotor synchronous reference frame were obtained by 3/2 transformation. Taking the torque windings as an example, its incremental inductance was studied and compared with the static one. Finite element simulation results show that the incremental inductance value is 6% lower than the static one, which confirms the validity of the theory analysis.

     

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