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Model-Based Commutation of a Long-Stroke Magnetically Levitated Linear Actuator

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6 Author(s)
van Lierop, C.M.M. ; Dept. of Electr. Eng., Eindhoven Univ. of Technol. ; Jansen, J.W. ; Damen, A.A.H. ; Lomonova, E.A.
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This paper concerns a commutation and switching algorithm for multi-degree-of-freedom moving-magnet actuators with permanent magnets and integrated active magnetic bearing. Because of the integration of long-stroke actuation and an active magnetic bearing, DQ-decomposition cannot be applied. Therefore, these actuators are a special class of synchronous machines. A newly developed model-based commutation algorithm for linear and planar actuators enables long-stroke motion by switching between different sets of coils. Moreover, the ohmic losses in the coils are minimized. Three different versions of the algorithm are compared and successfully implemented on a 3-DOF magnetically levitated linear actuator

Published in:

Industry Applications Conference, 2006. 41st IAS Annual Meeting. Conference Record of the 2006 IEEE  (Volume:1 )

Date of Conference:

8-12 Oct. 2006