저자 | Jun-Hyuk Im, Jun-Kyu Kang, Jin Hur, Fellow, IEEE |
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논문지명 | IEEE Transaction on Industry Applications |
Title: Utilization of Multiple Planar Search Coils for Diagnosing Imbalance Irreversible Demagnetization Faults in PMSMs along the z-Axis
Authors: Jun-Hyuk Im, Member, IEEE, Jun-Kyu Kang, Student, IEEE, and Jin Hur, Fellow, IEEE
will be published in IEEE Transactions on Industry Applications
Abstract— Permanent magnet motors with magnets installed on
the rotor are widely employed in various fields due to their
excellent efficiency and output density. However, magnets are
susceptible to irreversible demagnetization faults, where their
magnetic properties degrade due to stresses such as external
magnetic fields and high temperature condition. Irreversible
demagnetization faults can deteriorate motor performance and
even lead to catastrophic failures like control failures.
Furthermore, due to the uneven distribution of stresses, such as
heat and magnetic flux, on the motor magnets, irreversible
demagnetization faults exhibit non-uniformity along the z-axis
direction. Therefore, there is a need to study diagnostic techniques
for irreversible demagnetization faults. Various diagnostic
techniques have been proposed; however, most of them cannot
provide diagnostics for individual magnet segments. In this paper,
we introduce a fault diagnosis technique using planar search coils
attached to the surface of the motor's stator. The planar search
coils can be fabricated in various shapes, allowing for the
arrangement of multiple coils along the z-axis of the motor to
acquire signals based on the flux crossing each coil. This technique
is validated through finite element analysis and experiments. As a
result, it is confirmed that the proposed technique allows for fault
diagnosis in both the non-excited and excited states using the
acquired signals.
번호 | 분류 | 제목 | 논문지명 | 저자 |
---|---|---|---|---|
3 | 1999 | "3-D Analysis of Permanent Magnet Linear Synchronous Motor with Magnet Arrangement Using EMCN" | IEEE Transactions on Magnetics | I.S. Jung, Jin Hur and D.S. Hyun |
2 | 2017 | " Dynamic Characteristic Analysis of Irreversible Demagnetization in SPM and IPM type BLDC Motor" | IEEE Transactions on Industry Applications | Hyung-Kyu Kim, Jin Hur |
1 | 2017 | " Detection Technique for Stator Inter-Turn Faults in BLDC Motors Based on Third Harmonic Components of Line Currents" | IEEE Transactions on Industry Applications | Seung-Tae Lee and Jin Hur |