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Patent Agency Ranking
公开(公告)号：US10310016B2
公开(公告)日：2019-06-04
申请号：US14437864
申请日：2013-10-08
Applicant: ABB TECHNOLOGY AG
Inventor： James Ottewill , Maciej Orman , Cajetan Pinto
IPC: G01R31/00 , G01R31/34 , G01R19/165 , G01R31/06
Abstract: The present invention is concerned with a method for diagnosing the state of electromechanical systems in which electrical rotating machinery is used on the basis of analysis of impedance estimated from at least two currents and two voltages, measured during an operation of the electromechanical system. The method may be especially useful in the condition monitoring of electric motors and generators. The invention combines the information from both the voltage and current signals measurable at the motor terminals. Specifically, the measurements of voltage and current from two or more phases of a polyphase electrical machine are combined to estimate the impedance of the machine, impedance being the resistance to the flow of current that a circuit exhibits when a voltage is applied to it.
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2.发明申请METHOD FOR THE DIAGNOSTICS OF ELECTROMECHANICAL SYSTEM BASED ON IMPEDANCE ANALYSIS 审中-公开基于阻抗分析的机电系统诊断方法公开(公告)号：US20150293177A1
公开(公告)日：2015-10-15
申请号：US14437864
申请日：2013-10-08
Applicant: ABB TECHNOLOGY AG
Inventor： James Ottewill , Maciej Orman , Cajetan Pinto
IPC: G01R31/34 , G01R19/165
CPC classification number: G01R31/343 , G01R19/16528 , G01R31/06
Abstract: The present invention is concerned with a method for diagnosing the state of electromechanical systems in which electrical rotating machinery is used on the basis of analysis of impedance estimated from at least two currents and two voltages, measured during an operation of the electromechanical system. The method may be especially useful in the condition monitoring of electric motors and generators. The invention combines the information from both the voltage and current signals measurable at the motor terminals. Specifically, the measurements of voltage and current from two or more phases of a polyphase electrical machine are combined to estimate the impedance of the machine, impedance being the resistance to the flow of current that a circuit exhibits when a voltage is applied to it.
Abstract translation: 本发明涉及一种用于诊断机电系统的状态的方法，其中基于在机电系统的操作期间测量的至少两个电流和两个电压估计的阻抗的分析来使用电动旋转机械。 该方法在电动机和发电机的状况监测中可能特别有用。 本发明组合了来自电动机端子可测量的电压和电流信号的信息。 具体地说，将多相电机的两相或更多相的电压和电流的测量结合起来来估计机器的阻抗，阻抗是对电路施加电压时的电流流动的阻力。
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公开(公告)号：US20150233787A1
公开(公告)日：2015-08-20
申请号：US14623933
申请日：2015-02-17
Applicant: ABB Technology AG
Inventor： William Eakins , Gregory Rossano , George Q. Zhang , Thomas A. Fuhlbrigge , Hetal V. Lakhani , Cajetan Pinto , Gregory Penza , Hermann Herrlich , Robert Kodadek
CPC classification number: H02K15/00 , Y10S901/01 , Y10S901/44
Abstract: A device for installing a modular crawler into an air gap of rotating electrical machinery and removing the crawler from the air gap has a reconfigurable handle attached to a curved head made from metallic material. The crawler is magnetically attached to the curved head when it is desired to insert the crawler into the air gap or remove the crawler from the air gap. The head can be rolled in the field into the curvature needed to match the stator's inner surface so that the installation device can easily be inserted in the air gap. The handle has several joints that can be adjusted in the field as needed for the best reachability. A camera is mounted on the curved head so that an operator can see the interface region between the curved head, crawler and air gap.
Abstract translation: 用于将模块化履带安装到旋转电机的气隙中并从气隙中移除履带的装置具有附接到由金属材料制成的弯曲头部的可重新配置的手柄。 当需要将履带插入气隙或从气隙中移除履带时，履带被磁性地附接到弯曲的头部。 头部可以在场中滚动到与定子的内表面匹配所需的曲率，使得安装装置可以容易地插入气隙中。 手柄具有几个可以根据需要调整的接头，以获得最佳的可达性。 相机安装在弯曲的头部上，使得操作者可以看到弯曲的头部，履带和气隙之间的界面区域。
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