公开(公告)号：US11594945B2

公开(公告)日：2023-02-28

申请号：US17682331

申请日：2022-02-28

Applicant: NOBLE DRILLING A/S

Inventor： John Røn Pedersen ,  Martin Speiermann ,  Jamshid Zamany

IPC: H02K21/22 ,  H02K11/21 ,  H02K7/09

Abstract: A flywheel system includes a rotor configured to rotate about a rotation axis. The flywheel system further includes a fixture and an active magnetic bearing module for actively stabilizing the rotor relative to the fixture. The active magnetic bearing module includes a plurality of first magnetizable elements mechanically coupled to or integrated in the rotor, and a plurality of electromagnets mechanically coupled to the fixture and configured to magnetically couple with the plurality of first magnetizable elements to actively stabilize the rotor relative to the fixture. Each of the first magnetizable elements is farther than each of the electromagnets from the rotation axis.