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    • 1. 发明授权
    • System and method for motor fault detection using stator current noise cancellation
    • 使用定子电流噪声消除的电机故障检测系统和方法
    • US07847580B2
    • 2010-12-07
    • US12350287
    • 2009-01-08
    • Wei ZhouBin LuMichael P. NowakSteven A. Dimino
    • Wei ZhouBin LuMichael P. NowakSteven A. Dimino
    • G01R31/34
    • G01R31/343
    • 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.
    • 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。
    • 5. 发明申请
    • METHOD AND APPARATUS OF ADAPTIVELY CANCELING A FUNDAMENTAL FREQUENCY OF AN ANALOG SIGNAL
    • 适应性消除模拟信号的基本频率的方法和装置
    • US20120011183A1
    • 2012-01-12
    • US12834105
    • 2010-07-12
    • Michael P. NowakSteven A. Dimino
    • Michael P. NowakSteven A. Dimino
    • G06F17/10H03B1/00
    • H03H21/0021H03H17/0289H03H2021/0049H03H2021/007H03H2021/0098
    • A system includes a first powered apparatus having a first analog signal with a fundamental frequency; and a second apparatus providing load diagnostics or power quality assessment of the first apparatus from a second digital signal. The second apparatus includes an input of the first analog signal, an output of the second digital signal, a processor, an adaptive filter executed by the processor, a digital-to-analog converter, and an analog-to-digital converter. The adaptive filter routine outputs a third digital signal as a function of the second digital signal and plural adaptive weights. The digital-to-analog converter inputs the third digital signal and outputs a fourth analog signal representative of an estimate of a fundamental frequency component of the first analog signal. The analog-to-digital converter inputs a difference between the first and fourth analog signals, and outputs the second digital signal representative of the first analog signal with the fundamental frequency component removed.
    • 一种系统包括具有基频的第一模拟信号的第一供电设备; 以及第二装置,从第二数字信号提供第一装置的负载诊断或电能质量评估。 第二装置包括第一模拟信号的输入,第二数字信号的输出,处理器,由处理器执行的自适应滤波器,数模转换器和模数转换器。 自适应滤波器程序输出作为第二数字信号和多个自适应权重的函数的第三数字信号。 数模转换器输入第三数字信号并输出​​表示第一模拟信号的基频分量的估计的第四模拟信号。 模数转换器输入第一和第四模拟信号之间的差值,并且输出表示基频分量去除的第一模拟信号的第二数字信号。
    • 6. 发明申请
    • SYSTEM AND METHOD FOR MOTOR FAULT DETECTION USING STATOR CURRENT NOISE CANCELLATION
    • 使用定常电流噪声消除进行电机故障检测的系统和方法
    • US20090146599A1
    • 2009-06-11
    • US12350287
    • 2009-01-08
    • Wei ZhouBin LuMichael P. NowakSteven A. Dimino
    • Wei ZhouBin LuMichael P. NowakSteven A. Dimino
    • H02H7/08
    • G01R31/343
    • 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.
    • 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。
    • 7. 发明授权
    • Method and apparatus of adaptively canceling a fundamental frequency of an analog signal
    • 自适应地消除模拟信号的基频的方法和装置
    • US08577945B2
    • 2013-11-05
    • US12834105
    • 2010-07-12
    • Michael P. NowakSteven A. Dimino
    • Michael P. NowakSteven A. Dimino
    • G06F17/10
    • H03H21/0021H03H17/0289H03H2021/0049H03H2021/007H03H2021/0098
    • A system includes a first powered apparatus having a first analog signal with a fundamental frequency; and a second apparatus providing load diagnostics or power quality assessment of the first apparatus from a second digital signal. The second apparatus includes an input of the first analog signal, an output of the second digital signal, a processor, an adaptive filter executed by the processor, a digital-to-analog converter, and an analog-to-digital converter. The adaptive filter routine outputs a third digital signal as a function of the second digital signal and plural adaptive weights. The digital-to-analog converter inputs the third digital signal and outputs a fourth analog signal representative of an estimate of a fundamental frequency component of the first analog signal. The analog-to-digital converter inputs a difference between the first and fourth analog signals, and outputs the second digital signal representative of the first analog signal with the fundamental frequency component removed.
    • 一种系统包括具有基频的第一模拟信号的第一供电设备; 以及第二装置,从第二数字信号提供第一装置的负载诊断或电能质量评估。 第二装置包括第一模拟信号的输入,第二数字信号的输出,处理器,由处理器执行的自适应滤波器,数模转换器和模数转换器。 自适应滤波器程序输出作为第二数字信号和多个自适应权重的函数的第三数字信号。 数模转换器输入第三数字信号并输出​​表示第一模拟信号的基频分量的估计的第四模拟信号。 模数转换器输入第一和第四模拟信号之间的差值,并且输出表示基频分量去除的第一模拟信号的第二数字信号。