TY - GEN
T1 - Offline Diagnosis and Classification of Demagnetization and Eccentricity Faults for Permanent Magnet Synchronous Motors Using Search Coils
AU - Cheng, Yuan
AU - Huang, Wan
AU - Du, Bochao
AU - Cui, Shumei
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - A special search coil arrangement is proposed in this paper to diagnose the local demagnetization faults (LDFs) and dynamic eccentricity faults (DEFs) offline. The d-axis is excited by an alternating-current signal, and the change of the magnetic permeability symmetry under motor different states results in different responses in the voltage signal of search coils (SCs), which functions as a monitor of the local magnetic field. This feature is often cancelled out by the synthesis of the three-phase system, so the proposed offline method is more sensitive and intuitive than the traditional methods. Finally, the method is verified by simulation results.
AB - A special search coil arrangement is proposed in this paper to diagnose the local demagnetization faults (LDFs) and dynamic eccentricity faults (DEFs) offline. The d-axis is excited by an alternating-current signal, and the change of the magnetic permeability symmetry under motor different states results in different responses in the voltage signal of search coils (SCs), which functions as a monitor of the local magnetic field. This feature is often cancelled out by the synthesis of the three-phase system, so the proposed offline method is more sensitive and intuitive than the traditional methods. Finally, the method is verified by simulation results.
KW - Local demagnetization
KW - dynamic eccentricity
KW - fault diagnosis
KW - permanent magnet synchronous motor
KW - search coil
UR - https://www.scopus.com/pages/publications/85146357443
U2 - 10.1109/ICEMS56177.2022.9983435
DO - 10.1109/ICEMS56177.2022.9983435
M3 - 会议稿件
AN - SCOPUS:85146357443
T3 - 2022 International Conference on Electrical Machines and Systems, ICEMS 2022
BT - 2022 International Conference on Electrical Machines and Systems, ICEMS 2022
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 25th International Conference on Electrical Machines and Systems, ICEMS 2022
Y2 - 29 November 2022 through 2 December 2022
ER -