Active magnetic bearing comprising means for damping the radial motion of a shaft of a rotary machine
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United States of America Patent
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Nov 7, 2017
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N/A
app pub date -
Oct 30, 2013
filing date -
Oct 31, 2012
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Abstract
An active magnetic bearing comprising a plurality of electromagnetic actuators, each actuator receiving for control thereof an input current and being able to exert a radial force on a shaft of a rotary machine, with respect to the rotation axis of said shaft, the shaft being able to be held without contact between the electromagnetic actuators and to undergo radial motion when it is in rotation, means for supplying input current of each actuator, the supply means comprising means for controlling the input current of each actuator, according to the position of the shaft with respect to the actuators. The supply means comprise means for damping the radial motion of the shaft.
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