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Synchronous Vibration Control for Magnetically Suspended Rotor System Using a Variable Angle Compensation Algorithm.
- 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]
- Subjects :
- *NOTCH filters
*MAGNETIC bearings
*ROTORS
*MAGNETIC suspension
Subjects
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