Journal
ELECTRICAL ENGINEERING
Volume 89, Issue 1, Pages 53-59Publisher
SPRINGER
DOI: 10.1007/s00202-005-0315-1
Keywords
active magnetic bearings; decentralized control; position control; PI/PD cascade control; root locus
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This paper discusses a closed-loop decentralized control for active magnetic bearings. A cascade connection of PI and PD position controllers is proposed. The control design is based on a simplified linearized model for one axis using a root locus. An excellent agreement is noticeable between simulation and experimental results. It has been shown, that the presented PI/PD control guarantees satisfactory high damping and stiffness of the overall system.
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