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公开(公告)号：US09601951B2
公开(公告)日：2017-03-21
申请号：US14070795
申请日：2013-11-04
Applicant: General Electric Company
Inventor： Ken Ivcar Salas Nobrega , Jeremy Daniel Van Dam , Manoj Ramprasad Shah , William Dwight Gerstler , Tsarafidy Raminosoa , Edward John Flett , Patel Bhageerath Reddy , James Pellegrino Alexander
Abstract: A permanent magnet machine, a rotor assembly for the machine, and a pump assembly. The permanent magnet machine includes a stator assembly including a stator core configured to generate a magnetic field and extending along a longitudinal axis with an inner surface defining a cavity and a rotor assembly including a rotor core and a rotor shaft. The rotor core is disposed inside the cavity and configured to rotate about the longitudinal axis. The rotor assembly further including a plurality of permanent magnets for generating a magnetic field which interacts with the stator magnetic field to produce torque. The permanent magnets configured as one of internal or surface mounted. The rotor assembly also including a plurality of retaining clips configured to retain the plurality of permanent magnets relative to the rotor core. The pump assembly including an electric submersible pump and a permanent magnet motor for driving the pump.
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公开(公告)号：US20160380495A1
公开(公告)日：2016-12-29
申请号：US14754138
申请日：2015-06-29
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Steven Joseph Galioto , Manoj Ramprasad Shah , Patel Bhageerath Reddy , Nathaniel Benedict Hawes
CPC classification number: H02K3/28 , H02K1/16 , H02K1/274 , H02K3/12 , H02K3/493 , H02K21/14 , H02K2213/03
Abstract: A permanent magnet (PM) machine includes a rotor and a stator assembly. The rotor includes a plurality of permanent magnets disposed about an axis of rotation. The stator assembly includes a stator body, a plurality of coil sides and a plurality of sintered iron magnetic wedges. The stator body includes a plurality of stator teeth defining a plurality of stator slots, each stator slot having an inside position and an outside position, such that each of the plurality of stator slots includes a first plurality of inside positions, and a first plurality of outside positions. The first plurality of coil sides are disposed in each of the first plurality of inside positions and the first plurality of outside positions. The first plurality of coil sides correspond to a first power phase. The first plurality of coil sides are electrically coupled to one another by a first plurality of end-coils. The plurality of sintered iron magnetic wedges are disposed at the openings of at least one stator slot of the plurality of stator slots.
Abstract translation: 永磁（PM）机器包括转子和定子组件。 转子包括围绕旋转轴设置的多个永磁体。 定子组件包括定子体，多个线圈侧和多个烧结铁磁铁楔。 定子体包括限定多个定子槽的多个定子齿，每个定子槽具有内部位置和外部位置，使得多个定子槽中的每一个包括第一多个内部位置，并且第一多个 外面的位置。 第一多个线圈侧设置在第一多个内部位置和第一多个外部位置中的每一个中。 第一多个线圈侧对应于第一电力相位。 第一组多个线圈侧通过第一多个端部线圈彼此电耦合。 多个烧结铁磁楔设置在多个定子槽的至少一个定子槽的开口处。
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公开(公告)号：US20150311849A1
公开(公告)日：2015-10-29
申请号：US14264332
申请日：2014-04-29
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Pinjia Zhang , Prabhakar Neti , Patel Bhageerath Reddy
IPC: H02P23/08
CPC classification number: H02P23/08 , H02P21/18 , H02P23/14 , H02P23/16 , H02P27/026 , H02P29/0241
Abstract: A method for estimating a speed of an induction motor includes applying a voltage to the induction motor and measuring a current of the induction motor. A current fast fourier transform (FFT) of the current is then determined and a slip of the induction motor is calculated based on the current FFT. A speed of the induction motor is then estimated based on the slip of the induction motor.
Abstract translation: 用于估计感应电动机的速度的方法包括向感应电动机施加电压并测量感应电动机的电流。 然后确定电流的当前快速傅立叶变换（FFT），并且基于当前FFT来计算感应电动机的滑差。 然后基于感应电动机的滑移来估计感应电动机的速度。
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公开(公告)号：US20180337565A1
公开(公告)日：2018-11-22
申请号：US15598408
申请日：2017-05-18
Applicant: General Electric Company
Inventor： Patel Bhageerath Reddy , Min Zou , Ayman Mohamed Fawzi EL-Refaie , Francis Johnson
Abstract: An AC electric machine that includes a dual magnetic phase material ring is disclosed. The AC electric machine includes a stator assembly and a rotor assembly positioned within the stator assembly and configured to rotate relative thereto, the rotor assembly comprising a rotor core including a stack of rotor laminations that collectively form the rotor core, the rotor core including a plurality of rotor poles separated by gaps therebetween. The AC electric machine also includes a dual magnetic phase material ring positioned about the stack of rotor laminations, the dual magnetic phase material ring comprising a first ring portion comprising a magnetic portion and a second ring portion comprising a non-magnetic portion.
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公开(公告)号：US09906108B2
公开(公告)日：2018-02-27
申请号：US14559037
申请日：2014-12-03
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Kum Kang Huh , Patel Bhageerath Reddy , Ayman Mohamed Fawzi El-Refaie , Patrick Lee Jansen , Roy David Schultz , Lembit Salasoo
Abstract: An electric machine that includes a rotor core made of magnetic steel; a stator configured with stationary windings therein; openings disposed within or on the rotor core; and a rotor circuit that is configured to introduce saliency based on an orientation of part of the rotor circuit in relationship to a pole location of the electric machine, where the rotor circuit is made of a conductive, non-magnetic material. A rotor component and various embodiments of electric machines are also disclosed. The present invention has been described in terms of specific embodiment(s), and it is recognized that equivalents, alternatives, and modifications, aside from those expressly stated, are possible and within the scope of the appending claims.
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Patent Agency Ranking
公开(公告)号：US09871418B2
公开(公告)日：2018-01-16
申请号：US14974848
申请日：2015-12-18
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Kum Kang Huh , Patel Bhageerath Reddy , Ayman Mohamed Fawzi El-Refaie , Patrick Lee Jansen , Roy David Schultz , Lembit Salasoo
Abstract: A rotor component that comprises a rotor circuit configured for use with either an interior permanent magnet (IPM) machine or a synchronous reluctance machine (SRM) that includes a pole circuit made of a conductive, non-magnetic material and has a midpoint that substantially aligns with a d-axis of the IPM or SRM. An electric machine with a similar rotor component therein or having a loop or ring of a conductive, non-magnetic material that is substantially concentric about a d-axis of the electric machine.
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公开(公告)号：US20170310171A1
公开(公告)日：2017-10-26
申请号：US15367261
申请日：2016-12-02
Applicant: General Electric Company
Inventor： Patel Bhageerath Reddy , Kevin Michael Grace
CPC classification number: H02K1/246 , B60L50/50 , H02K1/146 , H02K3/18 , H02K19/103 , H02K2201/03 , H02K2213/03
Abstract: According to some embodiments, a synchronous reluctance machine is disclosed. The machine includes a stator; a rotor disposed within the stator and configured to rotate relative to the stator; and a sleeve disposed circumferentially around the rotor.
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公开(公告)号：US09602043B2
公开(公告)日：2017-03-21
申请号：US14473216
申请日：2014-08-29
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Patel Bhageerath Reddy , Ayman Mohamed Fawzi El-Refaie , Kum Kang Huh
CPC classification number: H02P29/62 , H02P29/662 , H02P2207/05
Abstract: A magnet management method of controlling a ferrite-type permanent magnet electrical machine includes receiving and/or estimating the temperature permanent magnets; determining if that temperature is below a predetermined temperature; and if so, then: selectively heating the magnets in order to prevent demagnetization and/or derating the machine. A similar method provides for controlling magnetization level by analyzing flux or magnetization level. Controllers that employ various methods are disclosed. The present invention has been described in terms of specific embodiment(s), and it is recognized that equivalents, alternatives, and modifications, aside from those expressly stated, are possible and within the scope of the appending claims.
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29.发明申请SYSTEM AND METHOD FOR SUPPORTING LAMINATIONS OF SYNCHRONOUS RELUCTANCE MOTORS 审中-公开用于支持同步电动机的层叠的系统和方法公开(公告)号：US20160294236A1
公开(公告)日：2016-10-06
申请号：US14676587
申请日：2015-04-01
Applicant: GENERAL ELECTRIC COMPANY
CPC classification number: H02K15/022 , H02K1/246 , H02K19/103
Abstract: A synchronous reluctance machine includes a rotor having a first plate, a second plate, a first set of rotor poles, and a first set of axial stiffeners. Each rotor pole of the first set of rotor poles includes a first plurality of laminations axially stacked between the first plate and the second plate, and each lamination of the first plurality of laminations includes first channels configured to carry magnetic flux and a first plurality of passages spaced between the first channels. Each axial stiffener of the first set of axial stiffeners is disposed within a respective passage of the first plurality of passages. A first end of each axial stiffener of the first set of axial stiffeners interfaces with the first plate, and a second end of each axial stiffener of the first set of axial stiffeners interfaces with the second plate.
Abstract translation: 同步磁阻电机包括具有第一板，第二板，第一组转子磁极和第一组轴向加强件的转子。 第一组转子极的每个转子极包括轴向堆叠在第一板和第二板之间的第一多个叠片，并且第一多个叠片的每个层叠包括构造成承载磁通量的第一通道和第一多个通道 间隔在第一通道之间。 第一组轴向加强件的每个轴向加强件设置在第一多个通道的相应通道内。 第一组轴向加强件的每个轴向加强件的第一端与第一板接合，并且第一组轴向加强件的每个轴向加强件的第二端与第二板接合。
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公开(公告)号：US20160203898A1
公开(公告)日：2016-07-14
申请号：US15078439
申请日：2016-03-23
Applicant: General Electric Company
Inventor： Francis Johnson , Min Zou , Patel Bhageerath Reddy , James Pellegrino Alexander , Ayman Mohamed Fawzi EL-Refaie
CPC classification number: H01F7/021 , B05D7/14 , C21D1/26 , C21D8/1255 , C21D8/1277 , C21D2221/00 , C22C38/04 , C22C38/30 , C22C38/38 , C23C8/04 , C23C8/26 , H01F1/147 , H01F41/0253 , H02K1/02 , H02K1/246 , H02K19/02
Abstract: A magnetic component including first and second regions, and a method of varying the magnetization values in different regions of the magnetic component are disclosed. The first and the second regions are characterized by a nitrogen content that is different from each other. At least one of the first region and the second region is partially-magnetic and has a nitrogen content in a range from about 0.1 weight % to about 0.4 weight % of that region. A concentration of carbon, if present, of both the first and second regions is less than about 0.05 weight % of the respective regions.
Abstract translation: 公开了包括第一和第二区域的磁性部件以及改变磁性部件的不同区域中的磁化值的方法。 第一和第二区域的特征是氮含量彼此不同。 第一区域和第二区域中的至少一个是部分磁性的，并且氮含量在该区域的约0.1重量％至约0.4重量％的范围内。 第一和第二区域的碳浓度（如果存在）小于各个区域的约0.05重量％。
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