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公开(公告)号:US20150263650A1
公开(公告)日:2015-09-17
申请号:US14656930
申请日:2015-03-13
发明人: Beat KUTTEL , Gary PACE , Kevin R. WILLIAMS , James GARAGHTY , Tommy SCARBOROUGH
IPC分类号: H02P3/22 , E21B19/084 , B66D1/54 , B66D1/12
CPC分类号: H02P3/22 , B66D1/12 , B66D1/54 , H02P29/025
摘要: A predictive landing failsafe system is adapted to slow or stop a permanent magnet AC motor in response to a selected condition, such as a power outage. In some embodiments, the predictive landing failsafe system may short two or more terminals of the AC motor in response to the selected condition. In some embodiments, one or more resistors may be coupled between the two or more terminals, the resistors lowering the short-circuit current and thus making a more smooth stop for the AC motor. In some embodiments, the AC motor may be used in a drawworks.
摘要翻译: 预测着陆故障保护系统适于响应于所选择的状况(例如断电)来减慢或停止永磁式交流电动机。 在一些实施例中,预测着陆故障保护系统可以响应于所选择的状态而短路AC电动机的两个或更多个终端。 在一些实施例中,一个或多个电阻器可以耦合在两个或更多个端子之间,电阻器降低短路电流,从而使得AC电动机更平稳地停止。 在一些实施例中,AC马达可用于绞车中。
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公开(公告)号:US20150263575A1
公开(公告)日:2015-09-17
申请号:US14656866
申请日:2015-03-13
发明人: Gary PACE , Kevin R. Williams , James GARAGHTY , Brian ELLIS
IPC分类号: H02K1/30 , E21B19/00 , E21B19/084 , H02K1/27
CPC分类号: H02K1/30 , B66D1/12 , E21B15/02 , E21B19/006 , E21B19/008 , E21B19/084 , E21B19/09 , H02K1/2706 , H02K1/278 , H02K1/32
摘要: 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.
摘要翻译: 低惯量永磁电动机包括定子和转子。 转子包括通过一个或多个轮辐和/或腹板联接到马达的轴的大致管状和中空的转子体。 转子的永磁体联接到转子体上。 在一些实施例中,低惯量永磁电动机可用于为绞车供电。 在一些实施例中,绞车可以由主动升沉补偿控制器来控制。
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公开(公告)号:US20160268857A1
公开(公告)日:2016-09-15
申请号:US15159590
申请日:2016-05-19
发明人: Gary PACE , Kevin R. Williams , James GARAGHTY , Brian ELLIS
IPC分类号: H02K1/30 , E21B19/00 , E21B19/084 , H02K1/27
CPC分类号: H02K1/30 , B66D1/12 , E21B15/02 , E21B19/006 , E21B19/008 , E21B19/084 , E21B19/09 , H02K1/2706 , H02K1/278 , H02K1/32
摘要: 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.
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