Frequency-varying synchronous micro-vibration suppression for a MSFW with application of small-gain theorem
- Resource Type
- Authors
- Ziyuan Huang; Bangcheng Han; Jiancheng Fang; Yahong Fan; Cong Peng
- Source
- Mechanical Systems and Signal Processing. 82:432-447
- Subject
- Engineering
media_common.quotation_subject
Aerospace Engineering
Magnetic bearing
02 engineering and technology
Inertia
01 natural sciences
Flywheel
law.invention
Control theory
law
0103 physical sciences
0202 electrical engineering, electronic engineering, information engineering
010301 acoustics
Civil and Structural Engineering
media_common
Rotor (electric)
business.industry
Mechanical Engineering
020208 electrical & electronic engineering
Computer Science Applications
Vibration
Small-gain theorem
Control and Systems Engineering
Control system
Signal Processing
Robust control
business
- Language
- ISSN
- 0888-3270
This paper presents a novel synchronous micro-vibration suppression method on the basis of the small gain theorem to reduce the frequency-varying synchronous micro-vibration forces for a magnetically suspended flywheel (MSFW). The proposed synchronous micro-vibration suppression method not only eliminates the synchronous current fluctuations to force the rotor spinning around the inertia axis, but also considers the compensation caused by the displacement stiffness in the permanent-magnet (PM)-biased magnetic bearings. Moreover, the stability of the proposed control system is exactly analyzed by using small gain theorem. The effectiveness of the proposed micro-vibration suppression method is demonstrated via the direct measurement of the disturbance forces for a MSFW. The main merit of the proposed method is that it provides a simple and practical method in suppressing the frequency varying micro-vibration forces and preserving the nominal performance of the baseline control system.