公开(公告)号：WO2010079415A3

公开(公告)日：2010-09-02

申请号：PCT/IB2010000012

申请日：2010-01-07

Applicant: EATON CORP ,  ZHOU WEI ,  LU BIN ,  NOWAK MICHAEL P ,  DIMINO STEVEN A

Inventor： ZHOU WEI ,  LU BIN ,  NOWAK MICHAEL P ,  DIMINO STEVEN A

IPC: G01R31/34 ,  G05B23/02

CPC classification number: G01R31/343

Abstract: 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.

Abstract translation: 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。 该系统包括一个控制器，用于检测初始机械电机故障的指示。 控制器还包括处理器，其被编程为从操作马达接收基线组的当前数据，并且定义当前数据的基线组中的噪声分量。 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：WO2014058571A2

公开(公告)日：2014-04-17

申请号：PCT/US2013060036

申请日：2013-09-17

Applicant: EATON CORP

Inventor： PIYABONGKARN DAMRONGRIT ,  BUCK EDWARD F ,  DIMINO STEVEN A

IPC: H02J3/04

CPC classification number: H02J3/381 ,  G05F1/66 ,  H02J3/04 ,  H02J3/32 ,  H02J3/38 ,  H02J3/382 ,  H02J3/46 ,  H02J13/0096 ,  Y02E70/30 ,  Y02P80/14 ,  Y10T307/305 ,  Y10T307/367 ,  Y10T307/718

Abstract: A microgrid power generation system (80) includes a plurality of generators (200,202) having a plurality of different rated capacities and a plurality of distribution nodes (210,212,214), at least some of the distribution nodes being powered by the generators. A grid (208) is formed by the distribution nodes, the grid includes a system frequency (302). A plurality of loads (216,218,220) are powered by the grid through the distribution nodes, the loads have a power demand. A processor (230;216;218;220) includes a plurality of efficiency bands (88,92), each of the efficiency bands being for a corresponding one of the generators and including a plurality of generator switching points based upon droop of the system frequency and the power demand of the loads. The processor is structured to operate the generators and the loads under transient conditions based upon the efficiency bands.

Abstract translation: 微电网发电系统（80）包括具有多个不同额定容量的多个发电机（200,202）和多个分配节点（210,212,214），至少一些分配节点由发电机供电。 网格（208）由分布节点形成，网格包括系统频率（302）。 多个负载（216,218,220）由电网通过分配节点供电，负载具有功率需求。 处理器（230; 216; 218; 220）包括多个效率带（88,92），所述效率带中的每一个用于相应的一个发生器，并且包括基于系统下降的多个发电机切换点 频率和负载的功率需求。 处理器被构造为基于效率带在瞬态条件下操作发电机和负载。

公开(公告)号：WO2011158099A3

公开(公告)日：2012-08-23

申请号：PCT/IB2011001344

申请日：2011-06-15

Applicant: EATON CORP ,  LU BIN ,  SHARMA SANTOSH K ,  YAN TING ,  DIMINO STEVEN A

Inventor： LU BIN ,  SHARMA SANTOSH K ,  YAN TING ,  DIMINO STEVEN A

IPC: G01P3/46 ,  G01P3/48 ,  G01P3/489 ,  H02P23/14

CPC classification number: H02P27/047 ,  G01P3/48 ,  G01P3/489 ,  H02P21/18 ,  H02P23/14

Abstract: A system and method for detenriining 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.

Abstract translation: 公开了一种用于确定AC感应电机转子转速的系统和方法。 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：ZA201209314B

公开(公告)日：2014-04-30

申请号：ZA201209314

申请日：2012-12-10

Applicant: EATON CORP

Inventor： LU BIN ,  SHARMA SANTOSH KUMAR ,  YAN TING ,  DIMINO STEVEN A

IPC: G01P20060101 ,  H02P20060101

Abstract: 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：CA2795504A1

公开(公告)日：2011-10-13

申请号：CA2795504

申请日：2011-04-04

Applicant: EATON CORP

Inventor： LU BIN ,  SHARMA SANTOSH KUMAR ,  YAN TING ,  DIMINO STEVEN A

IPC: F04D15/00 ,  F04D29/66

Abstract: A system and method for detecting cavitation in pumps for fixed and variable supply frequency applications is disclosed. The system includes a controller (14, 24) having a processor (26) programmed to repeatedly receive real-time operating current data (28) from a motor (22) driving a pump (12), 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：BRPI1004570A2

公开(公告)日：2016-04-05

申请号：BRPI1004570

申请日：2010-01-07

Applicant: EATON CORP

Inventor： LU BIN ,  NOWAK MICHAEL P ,  DIMINO STEVEN A ,  ZHOU WEI

IPC: G01R31/34 ,  G05B23/02

公开(公告)号：AU2011203537B2

公开(公告)日：2014-07-10

申请号：AU2011203537

申请日：2011-07-12

Applicant: EATON CORP

Inventor： NOWAK MICHAEL P ,  DIMINO STEVEN A

IPC: H03M1/12

Abstract: A system (40) includes a first powered apparatus (42) having a first analog signal (16) with a fundamental frequency (on); and a second apparatus (44) providing load diagnostics or power quality assessment of the first apparatus (42) from a second digital signal (IF(n)). The second apparatus (44) includes an input (46) of the first analog signal, an output (48) of the second digital signal (IF(n)), a processor (22), an adaptive filter (50) executed by the processor, a digital-to-analog converter (20), and an analog-to-digital converter (10). The adaptive filter routine outputs a third digital signal (y(n)) as a function of the second digital signal (IF(n)) and plural adaptive weights (4,6). The digital-to-analog converter inputs the third digital signal (y(n)) and outputs a fourth analog signal (Iest(t)) representative of an estimate of a fundamental frequency component (Io(t)) of the first analog signal (16). The analog-to-digital converter inputs a difference (I(t) - Icest(t)) between the first and the fourth analog signals (Ioest(t)), and outputs the second digital signal (IF(n)) representative of the first analog signal with the fundamental frequency component removed. 24y(n) loest(t) + G2 10 3 xs (n) >+ DG { o ADC 8 4 28 20 14 30 8' 6 xc(n) wc(n)

公开(公告)号：AU2011236558A1

公开(公告)日：2012-10-25

申请号：AU2011236558

申请日：2011-04-04

Applicant: EATON CORP

Inventor： LU BIN ,  SHARMA SANTOSH KUMAR ,  YAN TING ,  DIMINO STEVEN A

IPC: F04D15/00 ,  F04D29/66

Abstract: A system and method for detecting cavitation in pumps for fixed and variable supply frequency applications is disclosed. The system includes a controller (14, 24) having a processor (26) programmed to repeatedly receive real-time operating current data (28) from a motor (22) driving a pump (12), 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：CA2746069A1

公开(公告)日：2012-01-12

申请号：CA2746069

申请日：2011-07-12

Applicant: EATON CORP

Inventor： NOWAK MICHAEL P ,  DIMINO STEVEN A

IPC: H03H17/02 ,  H02H7/08 ,  H02P27/04 ,  H03H21/00 ,  H03M1/00

Abstract: 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.

公开(公告)号：AU2011236558B2

公开(公告)日：2015-11-19

申请号：AU2011236558

申请日：2011-04-04

Applicant: EATON CORP

Inventor： LU BIN ,  SHARMA SANTOSH KUMAR ,  YAN TING ,  DIMINO STEVEN A

IPC: F04D15/00 ,  F04D29/66

Abstract: A system and method for detecting cavitation in pumps for fixed and variable supply frequency applications is disclosed. The system includes a controller (14, 24) having a processor (26) programmed to repeatedly receive real-time operating current data (28) from a motor (22) driving a pump (12), 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.