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

IPC分类号： G01R23/02 ,  G01R23/14 ,  G06F19/00

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。

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。

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

IPC分类号： G01R31/06 ,  G06F19/00

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。