US 12,413,127 B2
Electric stabilisers
Lionel Durantay, Champigneulles (FR); Christophe Grosselin, Champigneulles (FR); Alfred Permuy, Villebon-Sur-Yvette (FR); and Kevin Schmisser, Champigneulles (FR)
Assigned to GE ENERGY POWER CONVERSION TECHNOLOGY LIMITED, Warwicksire (GB)
Filed by GE ENERGY POWER CONVERSION TECHNOLOGY LIMITED, Warwicksire (GB)
Filed on Jun. 16, 2023, as Appl. No. 18/336,751.
Prior Publication US 2023/0412059 A1, Dec. 21, 2023
Int. Cl. H02K 41/02 (2006.01); B63B 39/00 (2006.01); H02K 7/09 (2006.01)
CPC H02K 41/02 (2013.01) [B63B 39/00 (2013.01); H02K 7/09 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An electric stabiliser for stabilising a floating structure, the electric stabiliser comprising:
a track for guiding a moving stabiliser mass along a track direction;
a direct current DC linear motor comprising a planar stator that extends along the track, and a mover that is adapted to move forwards and backwards along the track as the stabiliser mass, wherein the planar stator comprises a polyphase stator winding, and the mover comprises (i) a plurality of permanent motor magnets facing the polyphase stator winding that define a plurality of mover poles of alternating polarity along the track direction; and (ii) in a lower part of the mover, a first plurality of permanent bearing magnets defining a first bearing pole of first polarity extending along the longitudinal axis of the mover and a second plurality of permanent bearing magnets defining a second bearing pole of second and opposite polarity extending along the longitudinal axis of the mover; and
at least one active magnetic bearing for selectively levitating the mover.