公开(公告)号：US08135551B2

公开(公告)日：2012-03-13

申请号：US12365114

申请日：2009-02-03

申请人： Arvind Kumar Tiwari ,  William James Premerlani ,  Somakumar Ramachandrapanicker ,  Bhaskar Sen ,  Bogdan Z. Kasztenny ,  Arijit Banerjee

发明人： Arvind Kumar Tiwari ,  William James Premerlani ,  Somakumar Ramachandrapanicker ,  Bhaskar Sen ,  Bogdan Z. Kasztenny ,  Arijit Banerjee

IPC分类号： G01R31/00

CPC分类号： G01R31/343

摘要： A system and method for identifying turn faults in a stator of a motor are provided. The method includes determining a normalized cross-coupled impedance from the symmetrical components of measured voltages and currents of the motor. Additionally, the normalized cross-coupled impedance may be normalized to a negative sequence impedance. The negative sequence impedance may be determined through a regression analysis using parameters of the motor, such as line-to-line voltage, horsepower, and number of poles. A system is provided that includes a device having a memory and processor configured to determine a normalized cross-coupled impedance, compare the normalized cross-coupled impedance to one or more thresholds, and trigger and alarm and/or trip the motor.

摘要翻译： 提供了一种用于识别电动机定子中的匝故障的系统和方法。 该方法包括根据测量的电压和电流的电流的对称分量来确定归一化的交叉耦合阻抗。 此外，标准化的交叉耦合阻抗可以归一化为负序阻抗。 负序阻抗可以通过使用马达参数的回归分析来确定，例如线对线电压，马力和极数。 提供了一种系统，其包括具有存储器和处理器的设备，其被配置为确定归一化的交叉耦合阻抗，将标准化的交叉耦合阻抗与一个或多个阈值进行比较，并触发和报警和/或跳闸电动机。

公开(公告)号：US20100194323A1

公开(公告)日：2010-08-05

申请号：US12365114

申请日：2009-02-03

申请人： William James Premerlani ,  Somakumar R. ,  Arvind Kumar Tiwari ,  Bhaskar Sen ,  Bogdan Z. Kasztenny ,  Arijit Banerjee

发明人： William James Premerlani ,  Somakumar R. ,  Arvind Kumar Tiwari ,  Bhaskar Sen ,  Bogdan Z. Kasztenny ,  Arijit Banerjee

IPC分类号： H02H7/08

CPC分类号： G01R31/343

摘要： A system and method for identifying turn faults in a stator of a motor are provided. The method includes determining a normalized cross-coupled impedance from the symmetrical components of measured voltages and currents of the motor. Additionally, the normalized cross-coupled impedance may be normalized to a negative sequence impedance. The negative sequence impedance may be determined through a regression analysis using parameters of the motor, such as line-to-line voltage, horsepower, and number of poles. A system is provided that includes a device having a memory and processor configured to determine a normalized cross-coupled impedance, compare the normalized cross-coupled impedance to one or more thresholds, and trigger and alarm and/or trip the motor.

摘要翻译： 提供了一种用于识别电动机定子中的匝故障的系统和方法。 该方法包括根据测量的电压和电流的电流的对称分量来确定归一化的交叉耦合阻抗。 此外，标准化的交叉耦合阻抗可以归一化为负序阻抗。 负序阻抗可以通过使用马达参数的回归分析来确定，例如线对线电压，马力和极数。 提供了一种系统，其包括具有存储器和处理器的设备，其被配置为确定归一化的交叉耦合阻抗，将标准化的交叉耦合阻抗与一个或多个阈值进行比较，并触发和报警和/或跳闸电动机。

公开(公告)号：US08140291B2

公开(公告)日：2012-03-20

申请号：US12365118

申请日：2009-02-03

申请人： Bogdan Z. Kasztenny ,  Somakumar Ramachandrapanicker ,  Arvind Kumar Tiwari ,  Arijit Banerjee

发明人： Bogdan Z. Kasztenny ,  Somakumar Ramachandrapanicker ,  Arvind Kumar Tiwari ,  Arijit Banerjee

IPC分类号： G05R31/00

CPC分类号： G01R31/34 ,  G01R31/025 ,  G01R31/346

摘要： A system and method are provided for correction of parameters used in determination of stator turn faults of an induction motor. An embodiment may include determining a residual impedance and/or a residual voltage of the motor, and correcting a normalized cross-coupled impedance based on the residual impedance and residual voltage. Additional embodiments may include measuring an operating temperature of the motor and determining a negative sequence impedance of the motor based on the temperature. Another embodiment may include measuring voltages and currents of the motor and determining phasors for the voltages and currents using compensation for variations from a nominal frequency of the motor.

摘要翻译： 提供了用于校正用于确定感应电动机的定子匝故障的参数的系统和方法。 实施例可以包括确定电动机的残余阻抗和/或剩余电压，以及基于残余阻抗和残余电压校正归一化的交叉耦合阻抗。 另外的实施例可以包括测量电动机的工作温度并基于温度确定电动机的负序阻抗。 另一个实施例可以包括测量电动机的电压和电流，并且使用对来自电动机的额定频率的变化的补偿来确定电压和电流的相量。

公开(公告)号：US20100194324A1

公开(公告)日：2010-08-05

申请号：US12365118

申请日：2009-02-03

申请人： Bogdan Z. Kasztenny ,  Somakumar R. ,  Arvind Kumar Tiwari ,  Arijit Banerjee

发明人： Bogdan Z. Kasztenny ,  Somakumar R. ,  Arvind Kumar Tiwari ,  Arijit Banerjee

IPC分类号： H02H7/08

CPC分类号： G01R31/34 ,  G01R31/025 ,  G01R31/346

摘要： A system and method are provided for correction of parameters used in determination of stator turn faults of an induction motor. An embodiment may include determining a residual impedance and/or a residual voltage of the motor, and correcting a normalized cross-coupled impedance based on the residual impedance and residual voltage. Additional embodiments may include measuring an operating temperature of the motor and determining a negative sequence impedance of the motor based on the temperature. Another embodiment may include measuring voltages and currents of the motor and determining phasors for the voltages and currents using compensation for variations from a nominal frequency of the motor.

摘要翻译： 提供了用于校正用于确定感应电动机的定子匝故障的参数的系统和方法。 实施例可以包括确定电动机的残余阻抗和/或剩余电压，以及基于残余阻抗和残余电压校正归一化的交叉耦合阻抗。 另外的实施例可以包括测量电动机的工作温度并基于温度确定电动机的负序阻抗。 另一个实施例可以包括测量电动机的电压和电流，并且使用对来自电动机的额定频率的变化的补偿来确定电压和电流的相量。

公开(公告)号：US10036335B2

公开(公告)日：2018-07-31

申请号：US13234881

申请日：2011-09-16

申请人： Arijit Banerjee ,  Ajith Kuttainnair Kumar ,  Arvind Kumar Tiwari ,  Rupam Mukherjee ,  Somakumar Ramachandrapanicker ,  Paul Lloyd Flynn ,  Boyanapally Srilatha

发明人： Arijit Banerjee ,  Ajith Kuttainnair Kumar ,  Arvind Kumar Tiwari ,  Rupam Mukherjee ,  Somakumar Ramachandrapanicker ,  Paul Lloyd Flynn ,  Boyanapally Srilatha

IPC分类号： F02D29/06 ,  F02D41/00 ,  F02D41/14 ,  F02D41/22 ,  B60K6/46 ,  B60W20/50 ,  F02D41/28 ,  B60W30/20

CPC分类号： F02D29/06 ,  B60K6/46 ,  B60W20/50 ,  B60W2030/206 ,  F02D41/0097 ,  F02D41/1498 ,  F02D41/22 ,  F02D41/221 ,  F02D2041/288 ,  F02D2200/1004 ,  F02D2200/1006 ,  F02D2200/101 ,  F02D2200/1012 ,  F02D2250/24 ,  Y02T10/6217

摘要： Methods and systems are provided for an engine. A condition of the engine may be diagnosed based on information provided by signals from a generator operationally connected to the engine and/or other signals associated with the engine. Different types of degradation may be distinguished based on discerning characteristics within the information. Thus, a degraded engine component may be identified in a manner that reduces service induced delay.

公开(公告)号：US09109517B2

公开(公告)日：2015-08-18

申请号：US13047200

申请日：2011-03-14

申请人： Arijit Banerjee ,  Rupam Mukherjee ,  Arvind Kumar Tiwari ,  Somakumar Ramachandrapanicker ,  Srilatha Boyanapally ,  Paul Lloyd Flynn ,  Ajith Kuttannair Kumar

发明人： Arijit Banerjee ,  Rupam Mukherjee ,  Arvind Kumar Tiwari ,  Somakumar Ramachandrapanicker ,  Srilatha Boyanapally ,  Paul Lloyd Flynn ,  Ajith Kuttannair Kumar

IPC分类号： G06F11/30 ,  F02D29/06 ,  F01D15/10 ,  G01M13/02 ,  G05B23/02 ,  H02P21/14 ,  B60W20/00 ,  H02P23/14 ,  F02D41/28 ,  F02D41/14 ,  H02P29/02

CPC分类号： F02D29/06 ,  B60W20/50 ,  F01D15/10 ,  F02D2041/1432 ,  F02D2041/288 ,  F02D2200/1002 ,  G01M13/025 ,  G05B23/0224 ,  H02P21/20 ,  H02P23/14 ,  H02P29/0241

摘要： A method of monitoring health of a mechanical drive train is provided. The method includes obtaining voltage and current signals from at least one phase of an electrical machine coupled with the mechanical drive train. The method also includes representing the electrical machine having a non-sinusoidal flux distribution as a combination of a plurality of harmonic order sinusoidally distributed virtual electrical machines based on the obtained voltage and current signals. The method further includes determining a torque profile associated with one or more combinations of the sinusoidally distributed virtual electrical machines. Finally, the method includes detecting the presence of an anomaly in the mechanical drive train based on the torque profile or spectrum.

摘要翻译： 提供了一种监测机械传动系的健康的方法。 该方法包括从与机械传动系连接的电机的至少一个相位获得电压和电流信号。 该方法还包括基于获得的电压和电流信号将具有非正弦通量分布的电机表示为多个谐波阶正弦分布式虚拟电机的组合。 该方法还包括确定与正弦分布的虚拟电机的一个或多个组合相关联的转矩曲线。 最后，该方法包括基于扭矩分布或频谱检测机械传动系中异常的存在。

公开(公告)号：US20120239348A1

公开(公告)日：2012-09-20

申请号：US13047200

申请日：2011-03-14

申请人： Arijit Banerjee ,  Rupam Mukherjee ,  Arvind Kumar Tiwari ,  Somakumar Ramachandrapanicker ,  Srilatha Boyanapally ,  Paul Lloyd Flynn ,  Ajith Kuttannair Kumar

发明人： Arijit Banerjee ,  Rupam Mukherjee ,  Arvind Kumar Tiwari ,  Somakumar Ramachandrapanicker ,  Srilatha Boyanapally ,  Paul Lloyd Flynn ,  Ajith Kuttannair Kumar

IPC分类号： G06F19/00

CPC分类号： F02D29/06 ,  B60W20/50 ,  F01D15/10 ,  F02D2041/1432 ,  F02D2041/288 ,  F02D2200/1002 ,  G01M13/025 ,  G05B23/0224 ,  H02P21/20 ,  H02P23/14 ,  H02P29/0241

摘要： A method of monitoring health of a mechanical drive train is provided. The method includes obtaining voltage and current signals from at least one phase of an electrical machine coupled with the mechanical drive train. The method also includes representing the electrical machine having a non-sinusoidal flux distribution as a combination of a plurality of harmonic order sinusoidally distributed virtual electrical machines based on the obtained voltage and current signals. The method further includes determining a torque profile associated with one or more combinations of the sinusoidally distributed virtual electrical machines. Finally, the method includes detecting the presence of an anomaly in the mechanical drive train based on the torque profile or spectrum.

摘要翻译： 提供了一种监测机械传动系的健康的方法。 该方法包括从与机械传动系连接的电机的至少一个相位获得电压和电流信号。 该方法还包括基于获得的电压和电流信号将具有非正弦通量分布的电机表示为多个谐波阶正弦分布式虚拟电机的组合。 该方法还包括确定与正弦分布的虚拟电机的一个或多个组合相关联的转矩曲线。 最后，该方法包括基于扭矩分布或频谱检测机械传动系中异常的存在。

公开(公告)号：US08441153B2

公开(公告)日：2013-05-14

申请号：US12820208

申请日：2010-06-22

申请人： Adnan Kutubuddin Bohori ,  Somakumar Ramachandrapanicker ,  Christof Martin Sihler ,  Arvind Kumar Tiwari ,  Suma Memana Narayana Bhat

发明人： Adnan Kutubuddin Bohori ,  Somakumar Ramachandrapanicker ,  Christof Martin Sihler ,  Arvind Kumar Tiwari ,  Suma Memana Narayana Bhat

IPC分类号： H01F38/14

CPC分类号： E21B33/0385 ,  H02J4/00 ,  H02J5/005 ,  H02J50/12 ,  H02J50/70 ,  H02J50/90 ,  H04B5/0037 ,  H04B5/0081 ,  Y10T307/615

摘要： A system comprising a contactless power transfer system is presented. The system includes a primary element, a secondary element, and at least one field-focusing element interposed between the primary element and the secondary element and configured to focus a magnetic field. A partition is disposed between the primary element and the secondary element. The contactless power transfer system is disposed within pressure isolation cavities of a sub-sea assembly and configured to transfer power between a power source and a load.

摘要翻译： 提出了一种包括非接触式电力传输系统的系统。 该系统包括主要元件，次要元件和插入在主元件和次元件之间并被配置为聚焦磁场的至少一个场聚焦元件。 分隔件设置在主要元件和次要元件之间。 非接触式动力传递系统设置在海底组件的压力隔离腔内并被配置成在动力源和负载之间传递动力。

公开(公告)号：US08292052B2

公开(公告)日：2012-10-23

申请号：US12822232

申请日：2010-06-24

申请人： Adnan Kutubuddin Bohori ,  Ajith Kuttannair Kumar ,  Bret Dwayne Worden ,  James William Bray ,  Somakumar Ramachandrapanicker ,  Arvind Kumar Tiwari ,  Suma Memana Narayana Bhat

发明人： Adnan Kutubuddin Bohori ,  Ajith Kuttannair Kumar ,  Bret Dwayne Worden ,  James William Bray ,  Somakumar Ramachandrapanicker ,  Arvind Kumar Tiwari ,  Suma Memana Narayana Bhat

IPC分类号： B60L9/00 ,  H01F38/00

CPC分类号： B60L5/005 ,  B60L7/16 ,  B60L11/1812 ,  B60L11/182 ,  B60L2200/26 ,  B60M1/36 ,  Y02T10/7005 ,  Y02T10/7072 ,  Y02T90/122 ,  Y02T90/127 ,  Y02T90/14

摘要： A contactless power transfer system for a mobile asset is presented. The system includes a primary loop disposed adjacent to a location that is coupled to a power source. A secondary receiving coil is disposed on the mobile asset and coupled to a traction motor for receiving power from the primary loop. The power transfer system further includes a field-focusing element that can focus a magnetic field from the primary loop onto the secondary receiving coil, the field-focusing element having a non-linear current distribution.

摘要翻译： 提出了一种用于移动资产的非接触式电力传输系统。 该系统包括邻近与电源耦合的位置设置的主回路。 次级接收线圈设置在移动资产上并且耦合到牵引电动机以从主回路接收电力。 电力传送系统还包括场聚焦元件，该场聚焦元件可将来自初级环的磁场聚焦到次级接收线圈上，该场聚焦元件具有非线性电流分布。

公开(公告)号：US20110309687A1

公开(公告)日：2011-12-22

申请号：US12820208

申请日：2010-06-22

申请人： Adnan Kutubuddin Bohori ,  Somakumar Ramachandrapanicker ,  Christof Martin Sihler ,  Arvind Kumar Tiwari ,  Suma Memana Narayana Bhat

发明人： Adnan Kutubuddin Bohori ,  Somakumar Ramachandrapanicker ,  Christof Martin Sihler ,  Arvind Kumar Tiwari ,  Suma Memana Narayana Bhat

IPC分类号： H02J17/00

CPC分类号： E21B33/0385 ,  H02J4/00 ,  H02J5/005 ,  H02J50/12 ,  H02J50/70 ,  H02J50/90 ,  H04B5/0037 ,  H04B5/0081 ,  Y10T307/615

摘要： A system comprising a contactless power transfer system is presented. The system includes a primary element, a secondary element, and at least one field-focusing element interposed between the primary element and the secondary element and configured to focus a magnetic field. A partition is disposed between the primary element and the secondary element. The contactless power transfer system is disposed within pressure isolation cavities of a sub-sea assembly and configured to transfer power between a power source and a load.

摘要翻译： 提出了一种包括非接触式电力传输系统的系统。 该系统包括主要元件，次要元件和插入在主元件和次元件之间并被配置为聚焦磁场的至少一个场聚焦元件。 分隔件设置在主要元件和次要元件之间。 非接触式动力传递系统设置在海底组件的压力隔离腔内并被配置成在动力源和负载之间传递动力。