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21. 发明授权

US5570256A Induction machine protection device 失效
标题翻译：感应机保护装置
公开(公告)号：US5570256A
公开(公告)日：1996-10-29
申请号：US213285
申请日：1994-03-15
申请人： Randy Schoen , Thomas G. Habetler
发明人： Randy Schoen , Thomas G. Habetler
IPC分类号： H02H7/08 , H02H5/04
CPC分类号： H02H7/08
摘要： A device and apparatus for monitoring faults in a three phase induction machine are disclosed herein. The device and method utilize values of the currents in the three phases and the voltages of the three phases to estimate a current portion which is not substantially affected by the load torque effects of the machine. This current portion is related to the unacceptable magnetic fields present in the machine. These fields are typically caused by electrical or mechanical problems in the machine, and when the current portion exceeds a predetermined limit, operation of the machine can be discontinued.
摘要翻译：本文公开了一种用于监测三相感应电机中的故障的装置和装置。该装置和方法利用三相中的电流值和三相电压来估计基本上不受机器的负载转矩影响的电流部分。该电流部分与机器中存在的不可接受的磁场有关。这些领域通常由机器中的电气或机械问题引起，并且当当前部分超过预定限度时，可以停止机器的操作。

22. 发明授权

US07075327B2 System and method for proactive motor wellness diagnosis 有权
标题翻译：主动运动健康诊断的系统和方法
公开(公告)号：US07075327B2
公开(公告)日：2006-07-11
申请号：US10859506
申请日：2004-06-02
申请人： Steven A. Dimino , Thomas G. Habetler , Ramzy R. Obaid , Slobodan Krstic , Michael P. Nowak , Yanzhen Liu
发明人： Steven A. Dimino , Thomas G. Habetler , Ramzy R. Obaid , Slobodan Krstic , Michael P. Nowak , Yanzhen Liu
IPC分类号： G01R31/34
CPC分类号： G05B23/0254 , G01R31/343 , G05B23/0229 , G05B23/0245 , G05B2219/37351 , H02H7/0822
摘要： The present invention is directed to a power meter or overload relay including a housing and a plurality of sensors configured to monitor operation of a motor. A processor disposed within the housing and configured to receive operational feedback from the plurality of sensor and proactively determine an operational wellness of the motor from the operational feedback.
摘要翻译：本发明涉及一种功率计或过载继电器，其包括壳体和被配置为监视电动机的操作的多个传感器。一种处理器，其设置在所述壳体内并且被配置为从所述多个传感器接收操作反馈并且主动地从所述操作反馈确定所述电动机的操作健康。

23. 发明授权

US06822839B2 Method and apparatus of detecting internal motor faults in an induction machine 失效
公开(公告)号：US06822839B2
公开(公告)日：2004-11-23
申请号：US10065975
申请日：2002-12-05
申请人： Thomas G. Habetler
发明人： Thomas G. Habetler
IPC分类号： H02H504
CPC分类号： H02H7/085 , H02H3/42 , H02H3/46
摘要： The present invention is directed to a condition monitoring system for determining internal motor fault information. Voltage and current data are acquired from an induction machine in operation. Reactive and real power delivered to the induction machine is then determined from the voltage and current data. An inspection of the frequency spectrum of the real power as well as the reactive power is then used to ascertain load and motor condition. Specifically, an analysis of the frequency spectrum of the reactive power may be inspected for information relating to an internal motor fault whereas the frequency spectrum of the real power may be inspected for information relating to motor-driven or load faults.

24. 发明授权

US06621291B2 Device and method for estimating the resistance of a stator winding for an AC induction motor 有权
公开(公告)号：US06621291B2
公开(公告)日：2003-09-16
申请号：US09929990
申请日：2001-08-15
申请人： Sang-Bin Lee , Thomas G. Habetler , David J. Gritter
发明人： Sang-Bin Lee , Thomas G. Habetler , David J. Gritter
IPC分类号： G01R3134
CPC分类号： G01R31/346
摘要： A device and method to estimate the resistance of a stator winding of an AC induction motor is provided. The device includes an AC induction circuit connecting one phase of the AC induction motor to an AC source. The circuit includes a resistor and a switch connected in parallel. The switch is alternatively closed during the half cycles of the AC current supplied to the motor so as to inject a DC voltage and current bias to the AC motor. The resistance of the stator winding is estimated in response to the DC voltage and current bias.

25. 发明授权

US5644458A Induction machine protection device 失效
标题翻译：感应机保护装置
公开(公告)号：US5644458A
公开(公告)日：1997-07-01
申请号：US662388
申请日：1996-06-12
申请人： Randy Schoen , Thomas G. Habetler
发明人： Randy Schoen , Thomas G. Habetler
IPC分类号： H02H7/08 , H02H5/04
CPC分类号： H02H7/08
摘要： A device and apparatus for monitoring faults in a three phase induction machine are disclosed herein. The device and method utilize values of the currents in the three phases and the voltages of the three phases to estimate a current portion which is not substantially affected by the load torque effects of the machine. This current portion is related to the unacceptable magnetic fields present in the machine. These fields are typically caused by electrical or mechanical problems in the machine, and when the current portion exceeds a predetermined limit, operation of the machine can be discontinued.
摘要翻译：本文公开了一种用于监测三相感应电机中的故障的装置和装置。该装置和方法利用三相中的电流值和三相电压来估计基本上不受机器的负载转矩影响的电流部分。该电流部分与机器中存在的不可接受的磁场有关。这些领域通常由机器中的电气或机械问题引起，并且当当前部分超过预定限度时，可以停止机器的操作。

26. 发明授权

US07346475B2 System and method for proactive motor wellness diagnosis based on potential mechanical faults 有权
标题翻译：基于潜在机械故障的主动运动健康诊断系统和方法
公开(公告)号：US07346475B2
公开(公告)日：2008-03-18
申请号：US11426817
申请日：2006-06-27
申请人： Steven A. Dimino , Thomas G. Habetler , Ramzy R. Obaid , Slobodan Krstic , Michael P. Nowak , Yanzhen Liu
发明人： Steven A. Dimino , Thomas G. Habetler , Ramzy R. Obaid , Slobodan Krstic , Michael P. Nowak , Yanzhen Liu
IPC分类号： G06F15/00
CPC分类号： G05B23/0254 , G01R31/343 , G05B23/0229 , G05B23/0245 , G05B2219/37351 , H02H7/0822
摘要： The present invention is directed to a system and method for proactively determining motor wellness arising from potential mechanical faults of the motor. A controller is configured to detect indicia of impending mechanical motor faults. The controller includes a processor configured to determine motor parameters of a given motor including a load and generate a set of baseline data for the given motor. The processor is also configured to acquire current spectrum data from the given motor during operation, map at least one from a plurality of load bins based on the load, and generate a mechanical fault signature from the current spectrum. The processor is caused to compare the mechanical fault signature to baseline data from the set of baseline data corresponding to the mapped bin and determine amplitude variances within the mechanical fault signature indicative of an impending mechanical fault prior to an actual mechanical fault occurrence.
摘要翻译：本发明涉及一种用于主动地确定由电动机的潜在机械故障引起的运动健康的系统和方法。控制器被配置为检测即将发生的机械电机故障的标记。所述控制器包括处理器，所述处理器被配置为确定包括负载的给定电动机的电动机参数并且生成所述给定电动机的一组基线数据。处理器还被配置为在操作期间从给定电动机获取当前频谱数据，基于负载映射来自多个负载箱中的至少一个，并且从当前频谱生成机械故障签名。导致处理器将机械故障签名与对应于映射箱的一组基准数据进行比较，并确定机械故障签名之间的幅度方差，表示在实际机械故障发生之前即将发生的机械故障。

27. 发明授权

US07117125B2 System and method for proactive motor wellness diagnosis based on potential mechanical faults 有权
标题翻译：基于潜在机械故障的主动运动健康诊断系统和方法
公开(公告)号：US07117125B2
公开(公告)日：2006-10-03
申请号：US10859508
申请日：2004-06-02
申请人： Steven A. Dimino , Thomas G. Habetler , Ramzy R. Obaid , Slobodan Krstic , Michael P. Nowak , Yanzhen Liu
发明人： Steven A. Dimino , Thomas G. Habetler , Ramzy R. Obaid , Slobodan Krstic , Michael P. Nowak , Yanzhen Liu
IPC分类号： G06F19/00
CPC分类号： G05B23/0254 , G01R31/343 , G05B23/0229 , G05B23/0245 , G05B2219/37351 , H02H7/0822
摘要： The present invention is directed to a system and method for proactively determining motor wellness arising from potential mechanical faults of the motor. A controller is configured to detect indicia of impending mechanical motor faults. The controller includes a processor configured to determine motor parameters of a given motor including a load and generate a set of baseline data for the given motor. The processor is also configured to acquire current spectrum data from the given motor during operation, map at least one from a plurality of load bins based on the load, and generate a mechanical fault signature from the current spectrum. The processor is caused to compare the mechanical fault signature to baseline data from the set of baseline data corresponding to the mapped bin and determine amplitude variances within the mechanical fault signature indicative of an impending mechanical fault prior to an actual mechanical fault occurrence.
摘要翻译：本发明涉及一种用于主动地确定由电动机的潜在机械故障引起的运动健康的系统和方法。控制器被配置为检测即将发生的机械电机故障的标记。所述控制器包括处理器，所述处理器被配置为确定包括负载的给定电动机的电动机参数并且生成所述给定电动机的一组基线数据。处理器还被配置为在操作期间从给定电动机获取当前频谱数据，基于负载映射来自多个负载箱中的至少一个，并且从当前频谱生成机械故障签名。导致处理器将机械故障签名与对应于映射箱的一组基准数据进行比较，并确定机械故障签名之间的幅度方差，表示在实际机械故障发生之前即将发生的机械故障。

28. 发明授权

US5629870A Method and apparatus for predicting electric induction machine failure during operation 失效
标题翻译：运行期间电感电机故障预测方法及装置
公开(公告)号：US5629870A
公开(公告)日：1997-05-13
申请号：US251814
申请日：1994-05-31
申请人： Samir F. Farag , Thomas G. Habetler , Jay H. Schlag
发明人： Samir F. Farag , Thomas G. Habetler , Jay H. Schlag
IPC分类号： G01R31/34 , G01R23/00
CPC分类号： G01R31/343 , Y10S706/912
摘要： Methods and apparatus for identifying in real time an operating condition of an in-service electrical device which draws a power load by monitoring spectral content of the power signature and associating spectral components with device operating conditions. In the preferred embodiment, motor (12) power line current signature is sampled by data conditioning sampler (18). Preprocessor (30) spectrally separates the current signature into plural frequency domain components having respective frequency and magnitude values. Spectral characteristic component selector filter (40) selects for analysis at least one specific spectral component by referencing a base of stored knowledge of operational characteristics of the motor. A neural network (50) associates without supervision the selected detected spectral component with an operating condition of the motor (12). The base of stored knowledge is updated with new operating condition associations which have been made during real-time monitoring. A post processor (60) may enunciate the association to a user via an output device and it may generate a control signal to operate electrical distribution system protection or control apparatus.
摘要翻译：用于通过监视功率签名的频谱内容并将频谱分量与设备操作条件相关联来实时识别在役电气设备的操作状态的方法和装置，其绘制功率负载。在优选实施例中，马达（12）电力线电流签名由数据调节采样器（18）采样。预处理器（30）将当前签名频谱地分离成具有各自频率和幅度值的多个频域分量。光谱特征分量选择器滤波器（40）通过参考存储的电动机操作特性知识的基础来选择用于分析至少一个特定频谱分量。神经网络（50）在没有监视的情况下将所选择的检测到的频谱分量与电机（12）的操作条件相关联。存储知识的基础是在实时监控期间进行的新的操作条件关联的更新。后处理器（60）可以经由输出设备向用户发出关联，并且可以产生控制信号以操作配电系统保护或控制装置。

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