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公开(公告)号：US20130049733A1
公开(公告)日：2013-02-28
申请号：US13219753
申请日：2011-08-29
IPC分类号： G01N27/00
CPC分类号： G01R31/343 , F03D7/0264 , F03D7/0272 , F03D7/042 , Y02E10/723
摘要： A method of detecting faults in a wind turbine generator based on current signature analysis is disclosed herein. The method includes acquiring a set of electrical signals representative of an operating condition of a generator. Further, the electrical signals are processed to generate a normalized spectrum of electrical signals. A fault related to a gearbox or bearing or any other component associated with the generator is detected based on analyzing the current spectrum.
摘要翻译： 本文公开了一种基于当前签名分析来检测风力涡轮发电机中的故障的方法。 该方法包括获取代表发电机的运行状态的一组电信号。 此外，处理电信号以产生电信号的归一化频谱。 基于分析当前频谱来检测与变速箱或轴承或与发电机相关的任何其它部件相关的故障。
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公开(公告)号：US08994359B2
公开(公告)日：2015-03-31
申请号：US13219753
申请日：2011-08-29
CPC分类号： G01R31/343 , F03D7/0264 , F03D7/0272 , F03D7/042 , Y02E10/723
摘要： A method of detecting faults in a wind turbine generator based on current signature analysis is disclosed herein. The method includes acquiring a set of electrical signals representative of an operating condition of a generator. Further, the electrical signals are processed to generate a normalized spectrum of electrical signals. A fault related to a gearbox or bearing or any other component associated with the generator is detected based on analyzing the current spectrum.
摘要翻译： 本文公开了一种基于当前签名分析来检测风力涡轮发电机中的故障的方法。 该方法包括获取代表发电机的运行状态的一组电信号。 此外，处理电信号以产生电信号的归一化频谱。 基于分析当前频谱来检测与变速箱或轴承或与发电机相关的任何其它部件相关的故障。
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3.发明申请HIGH SENSITIVITY DIFFERENTIAL CURRENT TRANSFORMER FOR INSULATION HEALTH MONITORING 有权用于绝缘健康监测的高灵敏度差分电流互感器公开(公告)号：US20110006802A1
公开(公告)日：2011-01-13
申请号：US12499819
申请日：2009-07-09
申请人： Karim Younsi , Prabhakar Neti , Manoj Ramprasad Shah , Yingneng Zhou , Charles David Whitefield, II
发明人： Karim Younsi , Prabhakar Neti , Manoj Ramprasad Shah , Yingneng Zhou , Charles David Whitefield, II
CPC分类号： G01R15/185 , G01R31/025 , G01R31/1227 , G01R31/343 , G01R31/346 , H01F38/28
摘要： A current transformer is provided. The current transformer comprises a magnetic core having a central opening, at least one pair of conductors extending through the central opening and positioned symmetrically with respect to a center point of the magnetic core, one or more coils disposed on the magnetic core along a magnetic neutral axis of the magnetic core and one or more coils disposed on the magnetic core along a reference axis, wherein the reference axis is substantially perpendicular to the magnetic neutral axis.
摘要翻译： 提供电流互感器。 电流互感器包括具有中心开口的磁芯，至少一对导体延伸穿过中心开口并且相对于磁芯的中心点对称地定位，一个或多个线圈沿着磁性中性线设置在磁芯上 轴和沿着参考轴设置在磁芯上的一个或多个线圈，其中参考轴基本上垂直于磁性中性轴线。
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4.发明授权High sensitivity differential current transformer for insulation health monitoring 有权高灵敏度差动电流互感器，用于绝缘健康监测公开(公告)号：US08421442B2
公开(公告)日：2013-04-16
申请号：US12499816
申请日：2009-07-09
申请人： Karim Younsi , Prabhakar Neti , Manoj Ramprasad Shah , Yingneng Zhou , Charles David Whitefield, II
发明人： Karim Younsi , Prabhakar Neti , Manoj Ramprasad Shah , Yingneng Zhou , Charles David Whitefield, II
IPC分类号： G01R15/18
CPC分类号： G01R31/025 , G01R15/185 , G01R31/1227 , G01R31/343 , G01R31/346 , H01F38/30
摘要： A current transformer is provided. The current transformer comprises an inner magnetic core having a central opening, an outer sense core circumscribing the inner magnetic core, at least one pair of conductors extending through the central opening and positioned symmetrically with respect to a center point of the inner magnetic core, and one or more coils disposed on the inner magnetic core, the outer sense core, or both, in a magnetically balanced configuration relative to a magnetic neutral axis of the inner magnetic core.
摘要翻译： 提供电流互感器。 电流互感器包括具有中心开口的内部磁芯，围绕内部磁芯的外部感知芯，至少一对延伸穿过中心开口并且相对于内部磁芯的中心点对称定位的导体，以及 设置在内磁芯上的一个或多个线圈，外感测芯或两者，相对于内磁芯的磁中性轴以磁平衡构型。
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5.发明授权High sensitivity differential current transformer for insulation health monitoring 有权高灵敏度差动电流互感器，用于绝缘健康监测公开(公告)号：US08217644B2
公开(公告)日：2012-07-10
申请号：US12499819
申请日：2009-07-09
申请人： Karim Younsi , Prabhakar Neti , Manoj Ramprasad Shah , Yingneng Zhou , Charles David Whitefield, II
发明人： Karim Younsi , Prabhakar Neti , Manoj Ramprasad Shah , Yingneng Zhou , Charles David Whitefield, II
IPC分类号： G01R15/18
CPC分类号： G01R15/185 , G01R31/025 , G01R31/1227 , G01R31/343 , G01R31/346 , H01F38/28
摘要： A current transformer is provided. The current transformer includes a magnetic core having a central opening, at least one pair of conductors extending through the central opening and positioned symmetrically with respect to a center point of the magnetic core, one or more coils disposed on the magnetic core along a magnetic neutral axis of the magnetic core and one or more coils disposed on the magnetic core along a reference axis, wherein the reference axis is substantially perpendicular to the magnetic neutral axis.
摘要翻译： 提供电流互感器。 电流互感器包括具有中心开口的磁芯，至少一对导体延伸穿过中心开口并且相对于磁芯的中心点对称地定位，一个或多个线圈沿着磁性中性线设置在磁芯上 轴和沿着参考轴设置在磁芯上的一个或多个线圈，其中参考轴基本上垂直于磁性中性轴线。
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6.发明申请HIGH SENSITIVITY DIFFERENTIAL CURRENT TRANSFORMER FOR INSULATION HEALTH MONITORING 有权用于绝缘健康监测的高灵敏度差分电流互感器公开(公告)号：US20110006755A1
公开(公告)日：2011-01-13
申请号：US12499816
申请日：2009-07-09
申请人： Karim Younsi , Prabhakar Neti , Manoj Ramprasad Shah , Yingneng Zhou , Charles David Whitefield, II
发明人： Karim Younsi , Prabhakar Neti , Manoj Ramprasad Shah , Yingneng Zhou , Charles David Whitefield, II
CPC分类号： G01R31/025 , G01R15/185 , G01R31/1227 , G01R31/343 , G01R31/346 , H01F38/30
摘要： A current transformer is provided. The current transformer comprises an inner magnetic core having a central opening, an outer sense core circumscribing the inner magnetic core, at least one pair of conductors extending through the central opening and positioned symmetrically with respect to a center point of the inner magnetic core, and one or more coils disposed on the inner magnetic core, the outer sense core, or both, in a magnetically balanced configuration relative to a magnetic neutral axis of the inner magnetic core.
摘要翻译： 提供电流互感器。 电流互感器包括具有中心开口的内部磁芯，围绕内部磁芯的外部感知芯，至少一对延伸穿过中心开口并且相对于内部磁芯的中心点对称定位的导体，以及 设置在内磁芯上的一个或多个线圈，外感测芯或两者，相对于内磁芯的磁中性轴以磁平衡构型。
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7.发明授权On-line monitoring system for use with electrical assets and method of operating the same 有权用于电气资产的在线监测系统及其运行方法公开(公告)号：US09052350B2
公开(公告)日：2015-06-09
申请号：US13562514
申请日：2012-07-31
CPC分类号： G01R31/027 , G01F1/00 , G01F11/00 , G01F17/00 , G01R31/021 , G01R31/343
摘要： A system configured to monitor an operating electrical device includes a testing channel coupled to the device. The device is coupled to an electric power source through at least one electric power transmission channel. The power source is configured to transmit electric power at a first frequency. The testing channel is coupled to the power transmission channel. The system also includes a signal generator coupled to the testing channel. The signal generator is configured to inject testing signals into the testing channel at a second frequency that is greater than the first frequency. The system further includes at least one apparatus magnetically coupled to the power transmission channel. The magnetically coupled apparatus is configured to present a first impedance to the electric power at the first frequency and present a second impedance to the test signals at the second frequency. The second impedance is greater than the first impedance.
摘要翻译： 被配置为监视操作的电气设备的系统包括耦合到该设备的测试通道。 该装置通过至少一个电力传输通道耦合到电力源。 电源被配置为以第一频率发送电力。 测试通道耦合到电力传输通道。 该系统还包括耦合到测试通道的信号发生器。 信号发生器被配置为以大于第一频率的第二频率将测试信号注入测试信道。 该系统还包括磁耦合到电力传输通道的至少一个装置。 磁耦合装置被配置为以第一频率向电力呈现第一阻抗，并以第二频率向第一阻抗提供测试信号。 第二阻抗大于第一阻抗。
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8.发明申请公开(公告)号：US20140035595A1
公开(公告)日：2014-02-06
申请号：US13562514
申请日：2012-07-31
IPC分类号： G01R31/02
CPC分类号： G01R31/027 , G01F1/00 , G01F11/00 , G01F17/00 , G01R31/021 , G01R31/343
摘要： A system configured to monitor an operating electrical device includes a testing channel coupled to the device. The device is coupled to an electric power source through at least one electric power transmission channel. The power source is configured to transmit electric power at a first frequency. The testing channel is coupled to the power transmission channel. The system also includes a signal generator coupled to the testing channel. The signal generator is configured to inject testing signals into the testing channel at a second frequency that is greater than the first frequency. The system further includes at least one apparatus magnetically coupled to the power transmission channel. The magnetically coupled apparatus is configured to present a first impedance to the electric power at the first frequency and present a second impedance to the test signals at the second frequency. The second impedance is greater than the first impedance.
摘要翻译： 被配置为监视操作的电气设备的系统包括耦合到该设备的测试通道。 该装置通过至少一个电力传输通道耦合到电力源。 电源被配置为以第一频率发送电力。 测试通道耦合到电力传输通道。 该系统还包括耦合到测试通道的信号发生器。 信号发生器被配置为以大于第一频率的第二频率将测试信号注入测试信道。 该系统还包括磁耦合到电力传输通道的至少一个装置。 磁耦合装置被配置为以第一频率向电力呈现第一阻抗，并以第二频率向第一阻抗提供测试信号。 第二阻抗大于第一阻抗。
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公开(公告)号：US20140001893A1
公开(公告)日：2014-01-02
申请号：US13538197
申请日：2012-06-29
申请人： Jeremy Daniel Van Dam , Norman Arnold Turnquist , Tsarafidy Raminosoa , Manoj Ramprasad Shah , Xiaochun Shen
发明人： Jeremy Daniel Van Dam , Norman Arnold Turnquist , Tsarafidy Raminosoa , Manoj Ramprasad Shah , Xiaochun Shen
IPC分类号： H02K9/00
CPC分类号： F03B3/103 , F03B13/02 , F04D13/0646 , F24T10/20 , H02K1/20 , H02K5/12 , H02K5/1285 , H02K5/132 , H02K5/20 , H02K7/088 , H02K7/14 , H02K7/1823 , H02K9/19 , H02K16/00 , H02K21/22 , H02K2213/12 , Y02E10/14 , Y02E10/223
摘要： An electric machine is presented. The electric machine includes a hollow rotor; and a stator disposed within the hollow rotor, the stator defining a flow channel. The hollow rotor includes a first end portion defining a fluid inlet, a second end portion defining a fluid outlet; the fluid inlet, the fluid outlet, and the flow channel of the stator being configured to allow passage of a fluid from the fluid inlet to the fluid outlet via the flow channel; and wherein the hollow rotor is characterized by a largest cross-sectional area of hollow rotor, and wherein the flow channel is characterized by a smallest cross-sectional area of the flow channel, wherein the smallest cross-sectional area of the flow channel is at least about 25% of the largest cross-sectional area of the hollow rotor. An electric fluid pump and a power generation system are also presented.
摘要翻译： 介绍了电机。 电机包括中空转子; 以及设置在所述中空转子内的定子，所述定子限定流动通道。 中空转子包括限定流体入口的第一端部，限定流体出口的第二端部; 定子的流体入口，流体出口和流动通道被配置为允许流体经由流动通道从流体入口流体到流体出口; 并且其中所述中空转子的特征在于中空转子的最大横截面面积，并且其中所述流动通道的特征在于所述流动通道的最小横截面面积，其中所述流动通道的最小横截面面积在 至少占中空转子最大横截面面积的25％。 还提出了电动液压泵和发电系统。
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公开(公告)号：US08410656B2
公开(公告)日：2013-04-02
申请号：US12609652
申请日：2009-10-30
申请人： Murtuza Lokhandwalla , James Pellegrino Alexander , Ayman Mohamed Fawzi El-Refaie , Manoj Ramprasad Shah , Owen Scott Quirion
发明人： Murtuza Lokhandwalla , James Pellegrino Alexander , Ayman Mohamed Fawzi El-Refaie , Manoj Ramprasad Shah , Owen Scott Quirion
IPC分类号： H02K1/16
CPC分类号： H02K1/148
摘要： An electric machine and stator assembly are provided that include a continuous stator portion having stator teeth, and a tooth tip portion including tooth tips corresponding to the stator teeth of the continuous stator portion, respectively. The tooth tip portion is mounted onto the continuous stator portion.
摘要翻译： 提供了一种电机和定子组件，其包括具有定子齿的连续定子部分和包括与连续定子部分的定子齿相对应的齿尖的齿顶部分。 齿尖部分安装在连续的定子部分上。
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