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Synchronous Vibration Control for Magnetically Suspended Rotor System Using a Variable Angle Compensation Algorithm.

Authors :
Gong, Lei
Zhu, Changsheng
Source :
IEEE Transactions on Industrial Electronics. Aug2021, Vol. 68 Issue 8, p6547-6559. 13p.
Publication Year :
2021

Abstract

In active magnetic bearings (AMBs) supported rigid rotor systems, the unbalance compensation strategy based on a notch filter was often used to suppress the synchronous unbalance vibration when the rotor operates in the steady-state rotational speed. Whereas the rotor operates in a rotational-speed range including the critical rotational speeds, conventional notch filters should be improved to suppress the unbalance vibration. In most cases, improving the structure of the notch filter, such as a cross-feedback notch filter, phase-shift notch filter, adding the polarity switch or two-stage switch, was considered to make the notch filter work in the rotational-speed range. However, the improved notch filter may affect the stability of the AMBs rotor systems and result in large vibrations when the polarity switch or two-stage switch shifts. To avoid the shortcomings of these methods, a method using a variable angle compensation algorithm was proposed to suppress the synchronous unbalance vibration in finite iterative seeking processes, directly realizing unbalance compensation according to real-time rotor position. Finally, the effectiveness of the method proposed is verified by simulation and experiment results. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
02780046
Volume :
68
Issue :
8
Database :
Academic Search Index
Journal :
IEEE Transactions on Industrial Electronics
Publication Type :
Academic Journal
Accession number :
150190206
Full Text :
https://doi.org/10.1109/TIE.2020.3003632