公开(公告)号：US09869720B2

公开(公告)日：2018-01-16

申请号：US14348083

申请日：2012-09-19

Applicant: ABB TECHNOLOGY AG

Inventor： Maciej Orman ,  James Ottewill ,  Michal Orkisz

IPC: G01R31/34

CPC classification number: G01R31/34 ,  G01R31/343

Abstract: The present invention is concerned with a method of determining stationary signals for the diagnostics of an electromechanical systems in which electrical rotating machinery is used and in which at least one electrical or mechanical signal is measured during an operation of the electromechanical system. The method is used especially for condition monitoring of electric motors and generators. The method consists of measuring an analog waveform signal (S) of the electromechanical system and then manipulating that signal in various ways to obtain a frequencies spectrum, from which a vector of interest frequencies and corresponding vector of amplitudes are extracted to diagnose the electromechanical system.

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.

公开(公告)号：US20140236537A1

公开(公告)日：2014-08-21

申请号：US14348083

申请日：2012-09-19

Applicant: ABB TECHNOLOGY AG

Inventor： Maciej Orman ,  James Ottewill ,  Michal Orkisz

IPC: G01R31/34

CPC classification number: G01R31/34 ,  G01R31/343

Abstract: The present invention is concerned with a method of determining stationary signals for the diagnostics of an electromechanical systems in which electrical rotating machinery is used and in which at least one electrical or mechanical signal is measured during an operation of the electromechanical system. The method is used especially for condition monitoring of electric motors and generators. The method consists of measuring an analog waveform signal (S) of the electromechanical system and then manipulating that signal in various ways to obtain a frequencies spectrum, from which a vector of interest frequencies and corresponding vector of amplitudes are extracted to diagnose the electromechanical system.

Abstract translation: 本发明涉及一种确定用于诊断机电系统的静态信号的方法，其中使用电动旋转机械，并且其中在机电系统的操作期间测量至少一个电气或机械信号。 该方法特别用于电动机和发电机的状态监测。 该方法包括测量机电系统的模拟波形信号（S），然后以各种方式操纵该信号以获得频率谱，从该频谱中提取感兴趣的频率矢量和相应的振幅矢量以诊断机电系统。

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。