LOW INERTIA DIRECT DRIVE DRAWWORKS

A low inertia permanent magnet motor includes a stator and rotor. The rotor includes a generally tubular and hollow rotor body coupled to the shaft of the motor by one or more spokes and/or webs. The permanent magnets of the rotor are coupled to the rotor body. In some embodiments, the low inertia p...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ELLIS, BRIAN, WILLIAMS, KEVIN R, GARAGHTY, JAMES, PACE, GARY
Format: Patent
Sprache:eng ; fre
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Beschreibung
Zusammenfassung:A low inertia permanent magnet motor includes a stator and rotor. The rotor includes a generally tubular and hollow rotor body coupled to the shaft of the motor by one or more spokes and/or webs. The permanent magnets of the rotor are coupled to the rotor body. In some embodiments, the low inertia permanent magnet motor may be used to power a drawworks. In some embodiments, the drawworks may be controlled by an active heave compensation controller.