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 Study of rotor eccentricity effect on permanent magnet servo motor performance

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[ISSN:1007-449X/CN:23-1 408/TM]

Issue:
2016年01
Page:
52-59
Research Field:
Publishing date:

Info

Title:
 Study of rotor eccentricity effect on permanent magnet servo motor performance

Author(s):
 KONG Han12 LIU Jing-lin1

 ( 1. School of Automation,Northwestern Polytechnical University,Xi’an 710072,China; 2. College of Electrical Information Engineering,Zhengzhou University of Light Industry,Zhengzhou 450002,China)
Keywords:
permanent magnet servo motor rotor eccentricity finite element method harmonic magnetic field loss
PACS:
TM 351
DOI:
10. 15938 /j. emc. 2016. 01. 008
Abstract:
 In order to study the influence of the rotor eccentricity on the permanent magnet servo motor performance,the 14kW two dimensional electromagnetic field model of the permanent magnet servo motor using in cigarette automation equipment was established. The basic assumption and the boundary condi-tions were also given. Using by the finite element method,the influence of the rotor eccentricity on the air gap flux density was studied,and therewith,the variation of the air gap flux density was discovered with different rotor eccentricity conditions. The calculation results and test data were also compared. Based on the analysis of the air gap flux density,the influence of the rotor eccentricity the output torque and the rotor eddy current losses was further studied,and the variation of the output torque and rotor eddy current losses was analyzed when motor operates in static rotor eccentricity condition,dynamic rotor ec-centricity and in different degree levels of the rotor eccentricity. And then the variation mechanisms were observed,which could provide some theoretical basis for further studying on permanent magnet servo mo-tor.

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Last Update: 2016-03-21