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公开(公告)号：US20130030742A1
公开(公告)日：2013-01-31
申请号：US13558890
申请日：2012-07-26
申请人： Arijit Banerjee , Somakumar Ramachandrapanicker , Haiyan Sun , Subhra Samanta , Srinivas Satya Sai Mallampalli
发明人： Arijit Banerjee , Somakumar Ramachandrapanicker , Haiyan Sun , Subhra Samanta , Srinivas Satya Sai Mallampalli
CPC分类号： G01R31/343
摘要： A method for monitoring a synchronous machine is described. The method includes injecting a narrowband sinusoidal signal at a first end of a field winding of the synchronous machine. The method further includes monitoring a voltage at a second end of the field winding with respect to ground. The method then identifies a resonant frequency based on the monitored voltage, and generates a winding health indicator based on the identified resonant frequency and an expected resonant frequency.
摘要翻译： 描述了一种监视同步电机的方法。 该方法包括在同步电机的励磁绕组的第一端处注入窄带正弦信号。 该方法还包括监测场绕组相对于地的第二端的电压。 该方法然后基于所监视的电压识别谐振频率，并且基于所识别的谐振频率和期望的谐振频率来生成绕组健康指示器。
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公开(公告)号：US08635034B2
公开(公告)日：2014-01-21
申请号：US12970544
申请日：2010-12-16
申请人： Arijit Banerjee , Sunil Srinivasa Murthy , Srinivas Satya Sai Mallampalli , Ravindra Shyam Bhide
发明人： Arijit Banerjee , Sunil Srinivasa Murthy , Srinivas Satya Sai Mallampalli , Ravindra Shyam Bhide
IPC分类号： G01R31/00
CPC分类号： G01R31/027 , G01R29/20
摘要： A method, system and computer program product for determining the health of a transformer are provided. The method includes computing an effective turns ratio based on a primary electrical parameter associated with a primary winding of the transformer and a secondary electrical parameter associated with a secondary winding of the transformer. The method further includes computing an operational magnetizing current based on the effective turns ratio and primary and secondary currents of the transformer or primary and secondary voltages of the transformer. Finally, the method includes determining an inter-turn winding health indicator based at least in part on the operational magnetizing current.
摘要翻译： 提供了一种用于确定变压器健康状况的方法，系统和计算机程序产品。 该方法包括基于与变压器的初级绕组相关联的主电参数和与变压器的次级绕组相关联的次级电参数来计算有效匝数比。 该方法还包括基于变压器的有效匝数比和初级和次级电流或变压器的一次和二次电压来计算操作磁化电流。 最后，该方法包括至少部分地基于操作磁化电流来确定匝间绕组健康状况指示器。
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公开(公告)号：US20120158325A1
公开(公告)日：2012-06-21
申请号：US12970544
申请日：2010-12-16
申请人： Arijit Banerjee , Sunil Srinivasa Murthy , Srinivas Satya Sai Mallampalli , Ravindra Shyam Bhide
发明人： Arijit Banerjee , Sunil Srinivasa Murthy , Srinivas Satya Sai Mallampalli , Ravindra Shyam Bhide
CPC分类号： G01R31/027 , G01R29/20
摘要： A method, system and computer program product for determining the health of a transformer are provided. The method includes computing an effective turns ratio based on a primary electrical parameter associated with a primary winding of the transformer and a secondary electrical parameter associated with a secondary winding of the transformer. The method further includes computing an operational magnetizing current based on the effective turns ratio and primary and secondary currents of the transformer or primary and secondary voltages of the transformer. Finally, the method includes determining an inter-turn winding health indicator based at least in part on the operational magnetizing current.
摘要翻译： 提供了一种用于确定变压器健康状况的方法，系统和计算机程序产品。 该方法包括基于与变压器的初级绕组相关联的主电参数和与变压器的次级绕组相关联的次级电参数来计算有效匝数比。 该方法还包括基于变压器的有效匝数比和初级和次级电流或变压器的一次和二次电压来计算操作磁化电流。 最后，该方法包括至少部分地基于操作磁化电流来确定匝间绕组健康状况指示器。
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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.
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5.发明授权Systems and methods for diagnosing auxiliary equipment associated with an engine 有权用于诊断与发动机相关的辅助设备的系统和方法公开(公告)号：US08626371B2
公开(公告)日：2014-01-07
申请号：US13234380
申请日：2011-09-16
IPC分类号： G06F17/00
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： Diagnosing auxiliary equipment associated with an engine. A condition of the auxiliary equipment is diagnosed based on information provided by signals from a generator operationally connected to the auxiliary equipment or other signals associated with the engine. Different types of degradation are distinguished based on discerning characteristics within the information. Thus, a degraded auxiliary equipment component can be identified in a manner that reduces service induced delay.
摘要翻译： 诊断与发动机相关的辅助设备。 辅助设备的状况基于由操作地连接到辅助设备的发电机或与发动机相关联的其他信号的信号提供的信息来诊断。 基于信息中的辨别特征来区分不同类型的退化。 因此，可以以减少服务引起的延迟的方式来识别劣化的辅助设备组件。
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6.发明授权公开(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。
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公开(公告)号：US09050894B2
公开(公告)日：2015-06-09
申请号：US13176828
申请日：2011-07-06
申请人： Arijit Banerjee , Rupam Mukherjee , Ajith Kumar , Somakumar Ramachandrapanicker , Srilatha Boyanapally , Mohan Kumar Katta
发明人： Arijit Banerjee , Rupam Mukherjee , Ajith Kumar , Somakumar Ramachandrapanicker , Srilatha Boyanapally , Mohan Kumar Katta
CPC分类号： B60L3/0061 , B60L2200/26 , B60L2260/44 , B60L2260/50 , Y02T10/646 , Y02T10/84
摘要： A method for a vehicle having plural electric motors includes generating motor electrical signatures for the motors. The motor electrical signatures represent one or more characteristics of electrical energy that is supplied to the motors. The method also includes identifying one or more fault measures of each of the motor electrical signatures. The fault measures are indicative of mechanical characteristics of the motors. The method further includes comparing the one or more fault measures of each motor with the one or more fault measures of the other motors in the same vehicle and predicting an impending mechanical failure of one or more of the motors based on comparing the fault measures of the motors.
摘要翻译： 一种具有多个电动机的车辆的方法包括：产生用于电动机的电动机电气特征。 电动机电气特征表示提供给电动机的电能的一个或多个特性。 该方法还包括识别每个电动机电特征的一个或多个故障测量。 故障指示表明电机的机械特性。 该方法还包括将每个电动机的一个或多个故障测量值与同一车辆中的其它电动机的一个或多个故障测量值进行比较，并且基于比较故障测量值来预测一个或多个电动机的即将发生的机械故障 电机。
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公开(公告)号：US20130311113A1
公开(公告)日：2013-11-21
申请号：US13476545
申请日：2012-05-21
申请人： Wrichik Basu , Somakumar Ramachandrapanicker , Dhaval Chandubhai Patel , Demetrios Karambatos , Robert Charles Deveaux , David John Allcock , Arijit Banerjee
发明人： Wrichik Basu , Somakumar Ramachandrapanicker , Dhaval Chandubhai Patel , Demetrios Karambatos , Robert Charles Deveaux , David John Allcock , Arijit Banerjee
CPC分类号： G01R31/343
摘要： The method includes measuring an operating parameter comprising at least one of a phasor current and phasor voltage of an electrical machine. The method further includes determining a diagnostic parameter indicative of a fault of the electrical machine based on the measured operating parameter. The method also includes estimating end of life of the electrical machine based on the diagnostic parameter using an error minimization method.
摘要翻译： 该方法包括测量包括电机的相量电流和相量电压中的至少一个的操作参数。 该方法还包括基于测量的操作参数来确定指示电机故障的诊断参数。 该方法还包括基于使用误差最小化方法的诊断参数估计电机的寿命终止。
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公开(公告)号：US20130013231A1
公开(公告)日：2013-01-10
申请号：US13176828
申请日：2011-07-06
申请人： Arijit Banerjee , Rupam Mukherjee , Ajith Kumar , Somakumar Ramachandrapanicker , Srilatha Boyanapally , Mohan Kumar Katta
发明人： Arijit Banerjee , Rupam Mukherjee , Ajith Kumar , Somakumar Ramachandrapanicker , Srilatha Boyanapally , Mohan Kumar Katta
CPC分类号： B60L3/0061 , B60L2200/26 , B60L2260/44 , B60L2260/50 , Y02T10/646 , Y02T10/84
摘要： A method for a vehicle having plural electric motors includes generating motor electrical signatures for the motors. The motor electrical signatures represent one or more characteristics of electrical energy that is supplied to the motors. The method also includes identifying one or more fault measures of each of the motor electrical signatures. The fault measures are indicative of mechanical characteristics of the motors. The method further includes comparing the one or more fault measures of each motor with the one or more fault measures of the other motors in the same vehicle and predicting an impending mechanical failure of one or more of the motors based on comparing the fault measures of the motors.
摘要翻译： 一种具有多个电动机的车辆的方法包括：产生用于电动机的电动机电气特征。 电动机电气特征表示提供给电动机的电能的一个或多个特性。 该方法还包括识别每个电动机电特征的一个或多个故障测量。 故障指示表明电机的机械特性。 该方法还包括将每个电动机的一个或多个故障测量值与同一车辆中的其它电动机的一个或多个故障测量值进行比较，并且基于比较故障测量值来预测一个或多个电动机的即将发生的机械故障 电机。
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10.发明申请公开(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。
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