公开(公告)号：US20190120290A1

公开(公告)日：2019-04-25

申请号：US16169311

申请日：2018-10-24

Applicant: LG Electronics Inc.

Inventor： Keun Woo JUNG ,  Kyung Min KIM ,  Jonghyun JEON ,  Joonsik AN

IPC: F16C32/04 ,  H02K7/09 ,  H02P6/28 ,  H02P6/17 ,  H02P6/12

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.