公开(公告)号：US07847580B2

公开(公告)日：2010-12-07

申请号：US12350287

申请日：2009-01-08

申请人： Wei Zhou ,  Bin Lu ,  Michael P. Nowak ,  Steven A. Dimino

发明人： Wei Zhou ,  Bin Lu ,  Michael P. Nowak ,  Steven A. Dimino

IPC分类号： G01R31/34

CPC分类号： G01R31/343

摘要： A system and method for detecting incipient mechanical motor faults by way of current noise cancellation is disclosed. The system includes a controller configured to detect indicia of incipient mechanical motor faults. The controller further includes a processor programmed to receive a baseline set of current data from an operating motor and define a noise component in the baseline set of current data. The processor is also programmed to acquire at least on additional set of real-time operating current data from the motor during operation, redefine the noise component present in each additional set of real-time operating current data, and remove the noise component from the operating current data in real-time to isolate any fault components present in the operating current data. The processor is then programmed to generate a fault index for the operating current data based on any isolated fault components.

摘要翻译： 公开了一种通过电流噪声消除来检测初始机械电机故障的系统和方法。 该系统包括被配置为检测初始机械电动机故障的标记的控制器。 控制器还包括处理器，其被编程为从操作马达接收当前数据的基线集合，并且定义当前数据的基线集合中的噪声分量。 处理器还被编程为在运行期间至少从电动机获取附加的一组实时工作电流数据，重新定义每个额外的一组实时工作电流数据中存在的噪声分量，并从操作中去除噪声分量 当前数据实时隔离操作当前数据中存在的任何故障组件。 然后处理器被编程为基于任何隔离的故障组件为工作电流数据生成故障索引。

公开(公告)号：US20090146599A1

公开(公告)日：2009-06-11

申请号：US12350287

申请日：2009-01-08

申请人： Wei Zhou ,  Bin Lu ,  Michael P. Nowak ,  Steven A. Dimino

发明人： Wei Zhou ,  Bin Lu ,  Michael P. Nowak ,  Steven A. Dimino

IPC分类号： H02H7/08

CPC分类号： G01R31/343

摘要： A system and method for detecting incipient mechanical motor faults by way of current noise cancellation is disclosed. The system includes a controller configured to detect indicia of incipient mechanical motor faults. The controller further includes a processor programmed to receive a baseline set of current data from an operating motor and define a noise component in the baseline set of current data. The processor is also programmed to acquire at least on additional set of real-time operating current data from the motor during operation, redefine the noise component present in each additional set of real-time operating current data, and remove the noise component from the operating current data in real-time to isolate any fault components present in the operating current data. The processor is then programmed to generate a fault index for the operating current data based on any isolated fault components.

摘要翻译： 公开了一种通过电流噪声消除来检测初始机械电机故障的系统和方法。 该系统包括被配置为检测初始机械电动机故障的标记的控制器。 控制器还包括处理器，其被编程为从操作马达接收当前数据的基线集合，并且定义当前数据的基线集合中的噪声分量。 处理器还被编程为在运行期间至少从电动机获取附加的一组实时工作电流数据，重新定义每个额外的一组实时工作电流数据中存在的噪声分量，并从操作中去除噪声分量 当前数据实时隔离操作当前数据中存在的任何故障组件。 然后处理器被编程为基于任何隔离的故障组件为工作电流数据生成故障索引。

公开(公告)号：US08566056B2

公开(公告)日：2013-10-22

申请号：US12816461

申请日：2010-06-16

申请人： Bin Lu ,  Santosh Kumar Sharma ,  Ting Yan ,  Steven A. Dimino

发明人： Bin Lu ,  Santosh Kumar Sharma ,  Ting Yan ,  Steven A. Dimino

IPC分类号： G01P21/00 ,  G01P3/48

CPC分类号： H02P27/047 ,  G01P3/48 ,  G01P3/489 ,  H02P21/18 ,  H02P23/14

摘要： A system and method for determining rotor speed of an AC induction machine is disclosed. The system is programmed to estimate a rotor speed of the induction machine according to a linear speed estimation algorithm and based on name plate information (NPI) of the induction machine and parameters of the AC induction machine during operation thereof. The rotor speed estimation system is also programmed to estimate a rotor speed of the AC induction machine according to a frequency-domain signal processing algorithm and determine if the rotor speed estimated thereby is valid. If the rotor speed estimated by the frequency-domain signal processing algorithm is valid, then a tuned rotor speed of the AC induction machine is estimated according to the linear speed estimation algorithm and based, in part, on the rotor speed estimated by the frequency-domain signal processing algorithm.

公开(公告)号：US20110313717A1

公开(公告)日：2011-12-22

申请号：US12816461

申请日：2010-06-16

申请人： Bin Lu ,  Santosh Kumar Sharma ,  Ting Yan ,  Steven A. Dimino

发明人： Bin Lu ,  Santosh Kumar Sharma ,  Ting Yan ,  Steven A. Dimino

IPC分类号： G06F19/00

CPC分类号： H02P27/047 ,  G01P3/48 ,  G01P3/489 ,  H02P21/18 ,  H02P23/14

摘要： A system and method for determining rotor speed of an AC induction machine is disclosed. The system is programmed to estimate a rotor speed of the induction machine according to a linear speed estimation algorithm and based on name plate information (NPI) of the induction machine and parameters of the AC induction machine during operation thereof. The rotor speed estimation system is also programmed to estimate a rotor speed of the AC induction machine according to a frequency-domain signal processing algorithm and determine if the rotor speed estimated thereby is valid. If the rotor speed estimated by the frequency-domain signal processing algorithm is valid, then a tuned rotor speed of the AC induction machine is estimated according to the linear speed estimation algorithm and based, in part, on the rotor speed estimated by the frequency-domain signal processing algorithm.

摘要翻译： 公开了一种用于确定AC感应电机的转子速度的系统和方法。 该系统被编程为根据线速度估计算法并且基于感应电动机的铭牌信息（NPI）以及在其运行期间的AC感应电机的参数来估计感应电机的转子速度。 转子速度估计系统还被编程为根据频域信号处理算法估计AC感应电机的转子速度，并且确定由此估计的转子速度是否有效。 如果通过频域信号处理算法估计的转子速度有效，则根据线速度估计算法估计交流感应电机的调谐转子速度，部分基于由频域信号处理算法估计的转子速度， 域信号处理算法。

公开(公告)号：US09777748B2

公开(公告)日：2017-10-03

申请号：US12753930

申请日：2010-04-05

申请人： Bin Lu ,  Santosh Kumar Sharma ,  Ting Yan ,  Steven A. Dimino

发明人： Bin Lu ,  Santosh Kumar Sharma ,  Ting Yan ,  Steven A. Dimino

IPC分类号： G08B21/00 ,  F04D29/66 ,  F04D15/00

CPC分类号： F04D29/669 ,  F04D15/0077 ,  F04D15/0088

摘要： A system and method for detecting cavitation in pumps for fixed and variable supply frequency applications is disclosed. The system includes a controller having a processor programmed to repeatedly receive real-time operating current data from a motor driving a pump, generate a current frequency spectrum from the current data, and analyze current data within a pair of signature frequency bands of the current frequency spectrum. The processor is further programmed to repeatedly determine fault signatures as a function of the current data within the pair of signature frequency bands, repeatedly determine fault indices based on the fault signatures and a dynamic reference signature, compare the fault indices to a reference index, and identify a cavitation condition in a pump based on a comparison between the reference index and a current fault index.

公开(公告)号：US20110241888A1

公开(公告)日：2011-10-06

申请号：US12753930

申请日：2010-04-05

申请人： Bin Lu ,  Santosh Kumar Sharma ,  Ting Yan ,  Steven A. Dimino

发明人： Bin Lu ,  Santosh Kumar Sharma ,  Ting Yan ,  Steven A. Dimino

IPC分类号： G08B21/00 ,  G06F15/00

CPC分类号： F04D29/669 ,  F04D15/0077 ,  F04D15/0088

摘要： A system and method for detecting cavitation in pumps for fixed and variable supply frequency applications is disclosed. The system includes a controller having a processor programmed to repeatedly receive real-time operating current data from a motor driving a pump, generate a current frequency spectrum from the current data, and analyze current data within a pair of signature frequency bands of the current frequency spectrum. The processor is further programmed to repeatedly determine fault signatures as a function of the current data within the pair of signature frequency bands, repeatedly determine fault indices based on the fault signatures and a dynamic reference signature, compare the fault indices to a reference index, and identify a cavitation condition in a pump based on a comparison between the reference index and a current fault index.

摘要翻译： 公开了一种用于在固定和可变电源频率应用的泵中检测气蚀的系统和方法。 该系统包括具有处理器的控制器，其被编程为重复地接收来自驱动泵的电动机的实时操作电流数据，从当前数据生成当前频谱，并分析当前频率的一对签名频带内的当前数据 光谱。 处理器进一步被编程为重复地将故障签名确定为一对签名频带内的当前数据的函数，基于故障签名和动态参考签名重复地确定故障索引，将故障索引与参考索引进行比较，以及 基于参考指数和当前故障指数之间的比较，识别泵中的气蚀条件。

公开(公告)号：US07777516B2

公开(公告)日：2010-08-17

申请号：US12132056

申请日：2008-06-03

申请人： Wei Zhou ,  Bin Lu ,  Thomas G. Habetler ,  Ronald G. Harley ,  Peter J. Theisen

发明人： Wei Zhou ,  Bin Lu ,  Thomas G. Habetler ,  Ronald G. Harley ,  Peter J. Theisen

IPC分类号： G01R31/34

CPC分类号： G01M13/04 ,  G01R31/343

摘要： A system and method for detecting incipient mechanical motor faults by way of current noise cancellation is disclosed. The system includes a controller configured to detect indicia of incipient mechanical motor faults. The controller further includes a processor programmed to receive a baseline set of current data from an operating motor and define a noise component in the baseline set of current data. The processor is also programmed to repeatedly receive real-time operating current data from the operating motor and remove the noise component from the operating current data in real-time to isolate any fault components present in the operating current data. The processor is then programmed to generate a fault index for the operating current data based on any isolated fault components.

摘要翻译： 公开了一种通过电流噪声消除来检测初始机械电机故障的系统和方法。 该系统包括被配置为检测初始机械电动机故障的标记的控制器。 控制器还包括处理器，其被编程为从操作马达接收当前数据的基线集合，并且定义当前数据的基线集合中的噪声分量。 处理器也被编程为重复地接收来自操作电机的实时工作电流数据，并实时地从工作电流数据中去除噪声分量，以隔离存在于工作电流数据中的任何故障组件。 然后处理器被编程为基于任何隔离的故障组件为工作电流数据生成故障索引。

公开(公告)号：US20080309366A1

公开(公告)日：2008-12-18

申请号：US12132056

申请日：2008-06-03

申请人： Wei Zhou ,  Bin Lu ,  Thomas G. Habetler ,  Ronald G. Harley ,  Peter J. Theisen

发明人： Wei Zhou ,  Bin Lu ,  Thomas G. Habetler ,  Ronald G. Harley ,  Peter J. Theisen

IPC分类号： G01R31/34

CPC分类号： G01M13/04 ,  G01R31/343

摘要： A system and method for detecting incipient mechanical motor faults by way of current noise cancellation is disclosed. The system includes a controller configured to detect indicia of incipient mechanical motor faults. The controller further includes a processor programmed to receive a baseline set of current data from an operating motor and define a noise component in the baseline set of current data. The processor is also programmed to repeatedly receive real-time operating current data from the operating motor and remove the noise component from the operating current data in real-time to isolate any fault components present in the operating current data. The processor is then programmed to generate a fault index for the operating current data based on any isolated fault components.

摘要翻译： 公开了一种通过电流噪声消除来检测初始机械电机故障的系统和方法。 该系统包括被配置为检测初始机械电动机故障的标记的控制器。 控制器还包括处理器，其被编程为从操作马达接收当前数据的基线集合，并且定义当前数据的基线集合中的噪声分量。 处理器也被编程为重复地接收来自操作电机的实时工作电流数据，并实时地从工作电流数据中去除噪声分量，以隔离存在于工作电流数据中的任何故障组件。 然后处理器被编程为基于任何隔离的故障组件为工作电流数据生成故障索引。

公开(公告)号：US20190150795A1

公开(公告)日：2019-05-23

申请号：US15821748

申请日：2017-11-22

申请人： Bin Lu

发明人： Bin Lu

IPC分类号： A61B5/11 ,  A61B5/00 ,  G09B1/06 ,  G09B19/00

摘要： The system is a closed-loop feedback mechanism that helps a user correct improper posture. The system consists of two or more system enclosures on opposite ends of a loop formed by connecting the enclosures with a necklace portion and multi-conductor cable of essentially equal length. Worn around the neck, one system enclosure is centered on the upper chest and the other enclosure is centered on the upper back. The two enclosures measure the angle of head back and neck to upper body and detect when a user is slouching. When so detected for some predetermined period of time, a transducer in one enclosure vibrates silently to alert the user that he or she is slouching. The vibratory alert ends when a user corrects his or her posture.

公开(公告)号：US09148083B2

公开(公告)日：2015-09-29

申请号：US13551973

申请日：2012-07-18

申请人： Eric Jon Olsson ,  Bin Lu ,  Ting Yan ,  Steven John Fredette ,  Charles John Luebke

发明人： Eric Jon Olsson ,  Bin Lu ,  Ting Yan ,  Steven John Fredette ,  Charles John Luebke

IPC分类号： H02P23/00 ,  H02P23/02 ,  H02P23/14 ,  H02P27/04

CPC分类号： H02P23/02 ,  H02P23/0077 ,  H02P23/14 ,  H02P27/047

摘要： A system and method for controlling an AC motor drive includes a control system programmed with an algorithm configured to optimize operation of the motor drive. Specifically, the control system is programmed to input an initial voltage-frequency command to the drive. The initial voltage-frequency command includes a voltage reference and a frequency reference corresponding to an operating point of an initial voltage/frequency (V/Hz) curve. The control system monitors a real-time output of the drive, modifies the voltage reference based on the real-time output of the drive, and transmits a modified voltage-frequency command to the drive. The modified voltage-frequency command corresponds to an operating point of a modified V/Hz curve defined by the modified voltage reference and the initial V/Hz curve.

摘要翻译： 用于控制AC电动机驱动器的系统和方法包括用配置成优化电动机驱动器的操作的算法来编程的控制系统。 具体地，控制系统被编程为向驱动器输入初始电压 - 频率命令。 初始电压 - 频率指令包括对应于初始电压/频率（V / Hz）曲线的工作点的电压基准和频率基准。 控制系统监控驱动器的实时输出，根据驱动器的实时输出修改参考电压，并向驱动器发送修改的电压 - 频率指令。 修改的电压 - 频率指令对应于由修改的电压基准和初始V / Hz曲线定义的修改的V / Hz曲线的工作点。