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Improved operation of magnetic bearings for flywheel energy storage systemAnalysis and operation of prototype 500-Wh flywheel at low speeds have shown that many factors affect the correct functioning of the magnetic bearings. An examination is made of a number of these, including magnetic bearing control system nonlinearities and displacement transducer positioning, and their effects upon the successful operation of the suspension system. It is observed that the bearing control system is extremely sensitive to actuator parameters such as coil inductance. As a consequence of the analysis of bearing relaxation oscillations, the bearing actuator design methodology which has previously been used, where coil parameter selection is based upon static considerations, has been revised. Displacement transducer sensors which overcome the collocation problem are discussed.
Document ID
19910053499
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Zmood, R. B.
(Royal Melbourne Institute of Technology, Australia; Maryland, University College Park, United States)
Pang, D.
(Royal Melbourne Inst. of Tech. Australia)
Anand, D. K.
(Royal Melbourne Inst. of Tech. Australia)
Kirk, J. A.
(Maryland, University College Park, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1990
Subject Category
Mechanical Engineering
Meeting Information
Meeting: Intersociety Energy Conversion Engineering Conference
Location: Reno, NV
Country: United States
Start Date: August 12, 1990
End Date: August 17, 1990
Accession Number
91A38122
Distribution Limits
Public
Copyright
Other

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