Dynamic Modeling and Analysis of Demagnetizing Rotor of Permanent Magnet Synchronous Motor

This study performs a dynamic modeling and analysis of the axial uniform demagnetization rotor of a motor to investigate the demagnetization peculiar for permanent magnet synchronous motor (PMSM). First, the air-gap change in the motor is analyzed by constructing a dual coordinate system of stator a...

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Main Authors: Bifeng Zhou, Guoning Tang, Yiping Luo
Format: Article
Language:English
Published: Wiley 2021-01-01
Series:Shock and Vibration
Online Access:http://dx.doi.org/10.1155/2021/6622851
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author Bifeng Zhou
Guoning Tang
Yiping Luo
author_facet Bifeng Zhou
Guoning Tang
Yiping Luo
author_sort Bifeng Zhou
collection DOAJ
description This study performs a dynamic modeling and analysis of the axial uniform demagnetization rotor of a motor to investigate the demagnetization peculiar for permanent magnet synchronous motor (PMSM). First, the air-gap change in the motor is analyzed by constructing a dual coordinate system of stator and rotor, and the unbalanced magnetic pull (UMP) model under uniform demagnetization and eccentricity is constructed. Second, combined with the UMP and the self-gravity, a dynamic model of the rotor under a uniform demagnetization and eccentricity is established. Lastly, the accuracy of the mathematical model of UMP under uniform demagnetization and eccentricity is confirmed by the mutual corroboration of Maxwell simulation and MATLAB calculation; and based on the dynamics model, the dynamic characteristics of the rotor system under different degrees of uniform demagnetization are studied. This study provides a theoretical basis for the accurate demagnetization fault diagnosis and vibration control of PMSMs in the future.
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institution Kabale University
issn 1070-9622
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publishDate 2021-01-01
publisher Wiley
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series Shock and Vibration
spelling doaj-art-58f22e25366d43408fd983d46053cedf2025-02-03T06:05:27ZengWileyShock and Vibration1070-96221875-92032021-01-01202110.1155/2021/66228516622851Dynamic Modeling and Analysis of Demagnetizing Rotor of Permanent Magnet Synchronous MotorBifeng Zhou0Guoning Tang1Yiping Luo2School of Mechanical Engineering, Hunan University of Science and Technology, Xiangtan 411201, ChinaSchool of Mechanical Engineering, Hunan University of Science and Technology, Xiangtan 411201, ChinaCollege of Electrical Information, Hunan Institute of Engineering, Xiangtan 411101, ChinaThis study performs a dynamic modeling and analysis of the axial uniform demagnetization rotor of a motor to investigate the demagnetization peculiar for permanent magnet synchronous motor (PMSM). First, the air-gap change in the motor is analyzed by constructing a dual coordinate system of stator and rotor, and the unbalanced magnetic pull (UMP) model under uniform demagnetization and eccentricity is constructed. Second, combined with the UMP and the self-gravity, a dynamic model of the rotor under a uniform demagnetization and eccentricity is established. Lastly, the accuracy of the mathematical model of UMP under uniform demagnetization and eccentricity is confirmed by the mutual corroboration of Maxwell simulation and MATLAB calculation; and based on the dynamics model, the dynamic characteristics of the rotor system under different degrees of uniform demagnetization are studied. This study provides a theoretical basis for the accurate demagnetization fault diagnosis and vibration control of PMSMs in the future.http://dx.doi.org/10.1155/2021/6622851
spellingShingle Bifeng Zhou
Guoning Tang
Yiping Luo
Dynamic Modeling and Analysis of Demagnetizing Rotor of Permanent Magnet Synchronous Motor
Shock and Vibration
title Dynamic Modeling and Analysis of Demagnetizing Rotor of Permanent Magnet Synchronous Motor
title_full Dynamic Modeling and Analysis of Demagnetizing Rotor of Permanent Magnet Synchronous Motor
title_fullStr Dynamic Modeling and Analysis of Demagnetizing Rotor of Permanent Magnet Synchronous Motor
title_full_unstemmed Dynamic Modeling and Analysis of Demagnetizing Rotor of Permanent Magnet Synchronous Motor
title_short Dynamic Modeling and Analysis of Demagnetizing Rotor of Permanent Magnet Synchronous Motor
title_sort dynamic modeling and analysis of demagnetizing rotor of permanent magnet synchronous motor
url http://dx.doi.org/10.1155/2021/6622851
work_keys_str_mv AT bifengzhou dynamicmodelingandanalysisofdemagnetizingrotorofpermanentmagnetsynchronousmotor
AT guoningtang dynamicmodelingandanalysisofdemagnetizingrotorofpermanentmagnetsynchronousmotor
AT yipingluo dynamicmodelingandanalysisofdemagnetizingrotorofpermanentmagnetsynchronousmotor