MAGNETIC BEARING CONTROL APPARATUS, CONTROL METHOD AND HIGH SPEED ROTATING MOTOR USING THE SAME

    公开(公告)号:US20190120290A1

    公开(公告)日:2019-04-25

    申请号:US16169311

    申请日:2018-10-24

    Abstract: A magnetic bearing control apparatus includes a plurality of output elements configured to generate electromagnetic force, a magnetic bearing configured to float a rotation shaft from a surface of the magnetic bearing based on the electromagnetic force generated by the plurality of output elements, at least one displacement sensor configured to sense a displacement of the rotation shaft, and a controller. The controller is configured to control a current supplied to the plurality of output elements, to control a position of the rotation shaft based on the current supplied to the plurality of output elements according to the displacement of the rotation shaft, and to determine a failure of the displacement sensor.

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