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Magnetic gear dynamics for servo control

By R. G. Montague, Chris Bingham and K. Atallah


This paper considers the analysis and application of magnetic gearbox and magnetic coupling technologies and issues surrounding their use for motion control servo systems. Analysis of a prototype magnetic gear is used as a basis for demonstrating the underlying nonlinear torque transfer characteristic, nonlinear damping, and `pole-slipping' when subject to over-torque (overload) conditions. It is also shown how `pole-slipping' results in consequential loss of control. A theoretical investigation into the suppression of mechanical torsional resonances in transmission systems encompassing these highly-compliant magnetically-coupled components is included, along with experimental results, from a demonstrator drive-train. The automatic detection of pole-slipping, and recovery scenarios, is also presented

Topics: H600 Electronic and Electrical Engineering
Publisher: IEEE
Year: 2010
DOI identifier: 10.1109/MELCON.2010.5475900
OAI identifier:

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