TY - GEN
T1 - Analysis and Control of Self-Sensing Model of Isolated Axial Magnetic Bearing
AU - Zhang, Rui
AU - Wang, Ning
AU - Wu, Hao
AU - Song, Liwei
N1 - Publisher Copyright:
© 2024 The Institute of Electrical Engineers of Japan.
PY - 2024
Y1 - 2024
N2 - In this paper, a displacement estimation strategy for axial magnetic bearing thrust disk considering eddy current effect is proposed. While greatly reducing the volume of magnetic bearings brought by the installation of displacement sensors, the axial magnetic bearings can work in harsh environments such as high pressure and corrosive liquids. Based on dynamic equivalent reluctance, an inductance model considering eddy current effect is established. Then, by deducing the relationship between inductance and the first harmonic amplitude of switching power amplifier, the displacement model of thrust disk is analyzed, and the first harmonic amplitude demodulator is established. Finally, the self-sensing experimental platform of axial magnetic bearing is built, and the correctness of the self-sensing model is verified by static linearity comparison experiment and dynamic suspension experiment.
AB - In this paper, a displacement estimation strategy for axial magnetic bearing thrust disk considering eddy current effect is proposed. While greatly reducing the volume of magnetic bearings brought by the installation of displacement sensors, the axial magnetic bearings can work in harsh environments such as high pressure and corrosive liquids. Based on dynamic equivalent reluctance, an inductance model considering eddy current effect is established. Then, by deducing the relationship between inductance and the first harmonic amplitude of switching power amplifier, the displacement model of thrust disk is analyzed, and the first harmonic amplitude demodulator is established. Finally, the self-sensing experimental platform of axial magnetic bearing is built, and the correctness of the self-sensing model is verified by static linearity comparison experiment and dynamic suspension experiment.
KW - Self-sensing
KW - axial magnetic bearing
KW - first harmonic amplitude demodulation
KW - inductance model
UR - https://www.scopus.com/pages/publications/105002374064
U2 - 10.23919/ICEMS60997.2024.10920961
DO - 10.23919/ICEMS60997.2024.10920961
M3 - 会议稿件
AN - SCOPUS:105002374064
T3 - 2024 27th International Conference on Electrical Machines and Systems, ICEMS 2024
SP - 2597
EP - 2601
BT - 2024 27th International Conference on Electrical Machines and Systems, ICEMS 2024
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 27th International Conference on Electrical Machines and Systems, ICEMS 2024
Y2 - 26 November 2024 through 29 November 2024
ER -