Open AccessSynchronous vibration control for magnetically suspended control moment gyros using optimal notch filter
Author(s) -
Peng Cong,
Zhu Mengting,
Liu Xiaoyue,
Chao Shan,
Zhen Ziyang
Publication year - 2020
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2019.3719
Subject(s) - band stop filter , control theory (sociology) , control moment gyroscope , filter (signal processing) , vibration , moment (physics) , rotor (electric) , vibration control , optimal control , phase (matter) , physics , low pass filter , computer science , engineering , control (management) , attitude control , acoustics , control engineering , mathematics , classical mechanics , artificial intelligence , mathematical optimization , quantum mechanics , computer vision
The synchronous vibration in magnetically suspended control moment gyros is a common problem due to unavoidable rotor mass imbalance. This work proposes an optimal notch filter for suppressing the synchronous vibration force. The synchronous vibration force is firstly modelled, and the preliminary design of phase‐shift notch filter is given to ensure the system stability. Then the optimal phase of notch filter is discussed, and its theoretical expression is given. Finally, simulation results illustrate the superiority of the notch filter with optimal phase, and experimental results verify the effectiveness of optimal notch filter.