NDLI: Cross feedback control of a magnetic bearing system: controller design considering gyroscopic effects

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Cross feedback control of a magnetic bearing system: controller design considering gyroscopic effects

Content Provider	NASA Technical Reports Server (NTRS)
Author	Kucera, Ladislav Ahrens Sr., Markus
Copyright Year	1996
Description	For flywheel rotors or other rotors with significant ratios of moments of inertia, the influence of gyroscopic effects has to be considered. While conservative or damped systems remain stable even under gyroscopic effects, magnetically suspended rotors can be destabilized with increasing rotational speed. The influence of gyroscopic effects on the stability and behavior of a magnetic bearing system is analyzed. The analysis is carried out with a rigid body model for the rotor and a nonlinear model for the magnetic bearing and its amplifier. Cross feedback control can compensate gyroscopic effects. This compensation leads to better system performance and can avoid instability. Furthermore, the implementation of this compensation is simple. The main structure of a decentralized controller can still be used. It has only to be expanded by the cross feedback path.
File Size	637293
Page Count	18
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19960052917
Archival Resource Key	ark:/13960/t3nw4d582
Language	English
Publisher Date	1996-07-01
Access Restriction	Open
Subject Keyword	Cybernetics Controllers Moments of Inertia Control Systems Design Power Amplifiers Gyroscopic Stability Mathematical Models Magnetic Bearings Feedback Control Flywheels Matrices Mathematics Magnetic Suspension Rotating Shafts Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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