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1. 发明申请

WO2009038832A3 SYSTEM AND METHOD TO DETERMINE ELECTRIC MOTOR EFFICIENCY NONINTRUSIVELY 审中-公开
标题翻译：确定电机效率非系统性的系统和方法
公开(公告)号：WO2009038832A3
公开(公告)日：2009-05-14
申请号：PCT/US2008065628
申请日：2008-06-03
申请人： EATON CORP , LU BIN , HABETLER THOMAS , HARLEY RONALD
发明人： LU BIN , HABETLER THOMAS , HARLEY RONALD
IPC分类号： G01R31/34
CPC分类号： G01R31/343 , H02P23/14
摘要： A system and method for nonintrusively determining electric motor efficiency includes a processor programmed to, while the motor is in operation, determine a plurality of stator input currents, electrical input data, a rotor speed, a value of stator resistance, and an efficiency of the motor based on the determined rotor speed, the value of stator resistance, the plurality of stator input currents, and the electrical input data. The determination of the rotor speed is based on one of the input power and the plurality of stator input currents. The determination of the value of the stator resistance is based on at least one of a horsepower rating and a combination of the plurality of stator input currents and the electrical input data. The electrical input data includes at least one of an input power and a plurality of stator input voltages.
摘要翻译：用于非侵入性地确定电动机效率的系统和方法包括：处理器，被编程为在电动机处于运行状态时，确定多个定子输入电流，电输入数据，转子速度，定子电阻值，以及基于确定的转子速度，定子电阻的值，多个定子输入电流和电输入数据。转子速度的确定基于输入功率和多个定子输入电流之一。定子电阻的值的确定基于马力额定值和多个定子输入电流和电输入数据的组合中的至少一个。电输入数据包括输入功率和多个定子输入电压中的至少一个。

2. 发明申请

WO2008151176A1 SYSTEM AND METHOD FOR BEARING FAULT DETECTION USING STATOR CURRENT NOISE CANCELLATION 审中-公开
标题翻译：使用定常电流噪声消除来承载故障检测的系统和方法
公开(公告)号：WO2008151176A1
公开(公告)日：2008-12-11
申请号：PCT/US2008/065612
申请日：2008-06-03
申请人： EATON CORPORATION , ZHOU, Wei , LU, Bin , HABETLER, Thomas , HARLEY, Ronald , THEISEN, Peter
发明人： ZHOU, Wei , LU, Bin , HABETLER, Thomas , HARLEY, Ronald , THEISEN, Peter
IPC分类号： G01M13/04 , G01H11/00
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。

3. 发明申请

WO2006121694A2 ELECTRONIC OVERLOAD RELAY FOR MAINS-FED INDUCTION MOTORS 审中-公开
标题翻译：用于主电感电动机的电子过载继电器
公开(公告)号：WO2006121694A2
公开(公告)日：2006-11-16
申请号：PCT/US2006016749
申请日：2006-05-01
申请人： SQUARE D CO , GAO ZHI , HABETLER THOMAS G , HARLEY RONALD G , COLBY ROY STEPHEN
发明人： GAO ZHI , HABETLER THOMAS G , HARLEY RONALD G , COLBY ROY STEPHEN
IPC分类号： H02H6/00 , G01R31/34
CPC分类号： G01R31/343 , H02H6/005 , H02H7/085
摘要： An induction motor having a rotor and a stator is protected during running overloads by connecting the motor to an overload protection relay that can be tripped to interrupt power to the motor in the event of an overload, tracking the stator winding temperature of the motor during running overloads with a hybrid thermal model by online adjustment in the hybrid thermal model, and tripping the overload protection relay in response to a predetermined running overload condition represented by the tracked stator winding temperature. In one embodiment of the invention, the stator winding temperature is tracked by use of an online hybrid thermal model that uses the resistance of the rotor as an indicator of rotor temperature and thus of the thermal operating conditions of the motor. The hybrid thermal model incorporates rotor losses and heat transfer between the rotor and the stator, and approximates the thermal characteristics of the rotor and stator.
摘要翻译：具有转子和定子的感应电动机在运行过载期间通过将电动机连接到过载保护继电器而被保护，该过载保护继电器在过载的情况下可被跳闸以中断电动机的动力，跟踪电动机在运行期间的定子绕组温度通过混合热模型中的在线调整，利用混合热模型进行过载，并响应于由定子绕组温度跟踪的预定运行过载条件跳闸过载保护继电器。在本发明的一个实施例中，通过使用在线混合热模型来跟踪定子绕组温度，该在线混合热模型使用转子的电阻作为转子温度的指示器，并且因此用于电动机的热操作条件。混合热模型包括转子损耗和转子和定子之间的热传递，并且接近转子和定子的热特性。

4. 发明申请

WO2009038832A2 SYSTEM AND METHOD TO DETERMINE ELECTRIC MOTOR EFFICIENCY NONINTRUSIVELY 审中-公开
标题翻译：非侵入性确定电机效率的系统和方法
公开(公告)号：WO2009038832A2
公开(公告)日：2009-03-26
申请号：PCT/US2008/065628
申请日：2008-06-03
申请人： EATON CORPORATION , LU, Bin , HABETLER, Thomas , HARLEY, Ronald
发明人： LU, Bin , HABETLER, Thomas , HARLEY, Ronald
IPC分类号： H02P21/14 , H02P23/14
CPC分类号： G01R31/343 , H02P23/14
摘要： A system and method for nonintrusively determining electric motor efficiency includes a processor programmed to, while the motor is in operation, determine a plurality of stator input currents, electrical input data, a rotor speed, a value of stator resistance, and an efficiency of the motor based on the determined rotor speed, the value of stator resistance, the plurality of stator input currents, and the electrical input data. The determination of the rotor speed is based on one of the input power and the plurality of stator input currents. The determination of the value of the stator resistance is based on at least one of a horsepower rating and a combination of the plurality of stator input currents and the electrical input data. The electrical input data includes at least one of an input power and a plurality of stator input voltages.
摘要翻译：用于非侵入式地确定电动机效率的系统和方法包括处理器，该处理器被编程为在电动机运行时确定多个定子输入电流，电输入数据，转子速度，定子电阻以及基于所确定的转子速度，定子电阻的值，多个定子输入电流和电输入数据的电动机的效率。转子速度的确定基于输入功率和多个定子输入电流中的一个。定子电阻值的确定基于马力额定值和多个定子输入电流与电输入数据的组合中的至少一个。电输入数据包括输入功率和多个定子输入电压中的至少一个。

5. 发明申请

WO2006121694A3 ELECTRONIC OVERLOAD RELAY FOR MAINS-FED INDUCTION MOTORS 审中-公开
公开(公告)号：WO2006121694A3
公开(公告)日：2006-11-16
申请号：PCT/US2006/016749
申请日：2006-05-01
申请人： SQUARE D COMPANY , GAO, Zhi , HABETLER, Thomas, G. , HARLEY, Ronald, G. , COLBY, Roy, Stephen
发明人： GAO, Zhi , HABETLER, Thomas, G. , HARLEY, Ronald, G. , COLBY, Roy, Stephen
IPC分类号： H02H6/00 , G01R31/34
摘要： An induction motor having a rotor and a stator is protected during running overloads by connecting the motor to an overload protection relay that can be tripped to interrupt power to the motor in the event of an overload, tracking the stator winding temperature of the motor during running overloads with a hybrid thermal model by online adjustment in the hybrid thermal model, and tripping the overload protection relay in response to a predetermined running overload condition represented by the tracked stator winding temperature. In one embodiment of the invention, the stator winding temperature is tracked by use of an online hybrid thermal model that uses the resistance of the rotor as an indicator of rotor temperature and thus of the thermal operating conditions of the motor. The hybrid thermal model incorporates rotor losses and heat transfer between the rotor and the stator, and approximates the thermal characteristics of the rotor and stator.

6. 发明申请

WO2005029096A3 SYSTEM AND MOTHOD FOR DETERMINING HARMONIC CONTRIBUTIONS FROM NON-LINEAR LOADS 审中-公开
标题翻译：用于确定非线性负载的谐波贡献的系统和主体
公开(公告)号：WO2005029096A3
公开(公告)日：2006-01-26
申请号：PCT/US2004030057
申请日：2004-09-15
申请人： GEORGIA TECH RES INST , HARLEY RONALD GORDON , HABELTER THOMAS G , LAMBERT FRANKLIN COOK , MAZUMDAR JOY
发明人： HARLEY RONALD GORDON , HABELTER THOMAS G , LAMBERT FRANKLIN COOK , MAZUMDAR JOY
IPC分类号： G01R20060101 , H02M1/12 , G06F19/00
CPC分类号： H02M1/12 , Y10S706/915
摘要： A system and method for determining harmonics caused by non-linear loads (116) are disclosed. Briefly described, one embodiment is a method comprising metering voltage on an electric power system (102); metering current on the electric power system (102); determining a predicted current based upon the metered voltage; comparing the predicted current with the metered current; and determining a harmonic current component using a plurality of weights (306) determined when the predicted current converges with the metered current.
摘要翻译：公开了一种用于确定由非线性负载引起的谐波的系统和方法（116）。简要描述，一个实施例是一种方法，其包括在电力系统（102）上计量电压; 计量电力系统（102）上的电流; 基于计量电压确定预测电流; 将预测电流与计量电流进行比较; 以及使用当预测电流与计量电流收敛时确定的多个权重（306）来确定谐波电流分量。

7. 发明申请

WO2005029096A2 SYSTEM AND MOTHOD FOR DETERMINING HARMONIC CONTRIBUTIONS FROM NON-LINEAR LOADS 审中-公开
标题翻译：用于确定非线性负载的谐波贡献的系统和主体
公开(公告)号：WO2005029096A2
公开(公告)日：2005-03-31
申请号：PCT/US2004/030057
申请日：2004-09-15
申请人： GEORGIA TECH RESEARCH CORPORATION , HARLEY, Ronald, Gordon , HABELTER, Thomas, G. , LAMBERT, Franklin, Cook , MAZUMDAR, Joy
发明人： HARLEY, Ronald, Gordon , HABELTER, Thomas, G. , LAMBERT, Franklin, Cook , MAZUMDAR, Joy
IPC分类号： G01R
CPC分类号： H02M1/12 , Y10S706/915
摘要： A system and method for determining harmonics caused by non-linear loads (116) are disclosed. Briefly described, one embodiment is a method comprising metering voltage on an electric power system (102); metering current on the electric power system (102); determining a predicted current based upon the metered voltage; comparing the predicted current with the metered current; and determining a harmonic current component using a plurality of weights (306) determined when the predicted current converges with the metered current.
摘要翻译：公开了一种用于确定由非线性负载引起的谐波的系统和方法（116）。简要描述，一个实施例是一种方法，其包括在电力系统（102）上计量电压; 计量电力系统（102）上的电流; 基于计量电压确定预测电流; 将预测电流与计量电流进行比较; 以及使用当预测电流与计量电流收敛时确定的多个权重（306）来确定谐波电流分量。

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