Open AccessModified Cross Feedback Control for a Magnetically Suspended Flywheel Rotor with Significant Gyroscopic Effects
Author(s) -
Yuan Ren,
Jiancheng Fang
Publication year - 2014
Publication title -
mathematical problems in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.262
H-Index - 62
eISSN - 1026-7077
pISSN - 1024-123X
DOI - 10.1155/2014/325913
Subject(s) - nutation , decoupling (probability) , flywheel , control theory (sociology) , gyroscope , control moment gyroscope , rotor (electric) , stability (learning theory) , channel (broadcasting) , attitude control , phase lag , lag , engineering , compensation (psychology) , control (management) , computer science , control engineering , mathematics , physics , automotive engineering , mechanical engineering , psychology , computer network , electrical engineering , astronomy , artificial intelligence , machine learning , psychoanalysis , aerospace engineering
For magnetically suspended rigid rotors (MSRs) with significant gyroscopic effects, phase lag of the control channel is the main factor influencing the system nutation stability and decoupling performance. At first, this paper proves that the phase lag of the cross channel instead of the decentralized channel is often the main factor influencing the system nutation stability at high speeds. Then a modified cross feedback control strategy based on the phase compensation of cross channel is proposed to improve the stability and decoupling performances. The common issues associated with the traditional control methods have been successfully resolved by this method. Analysis, simulation, and experimental results are presented to demonstrate the feasibility and superiority of the proposed control method
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