Condition monitoring device and method for monitoring an electrical machine

    公开(公告)号:US11680864B2

    公开(公告)日:2023-06-20

    申请号:US17416877

    申请日:2019-11-26

    Applicant: ABB Schweiz AG

    CPC classification number: G01M1/22 G01P15/18 G01R33/0206 G05B23/0259

    Abstract: The present invention relates to a condition monitoring device and method for monitoring an electrical machine. The method includes obtaining, at periodic instants, measurements from sensors of the condition monitoring device, where each sensor is one of a magnetometer and an accelerometer. The method also includes comparing, for one or more instants, amplitude data of the measurements with condition monitoring data, wherein the comparison is performed for the amplitude data in one or more axes and at one or more frequencies. The condition monitoring data includes a relation between a plurality of parameters, a plurality of conditions and a plurality of frequencies. The method additionally includes detecting a condition and at least one parameter associated with the condition, based on the comparison. According to the detection, the method includes utilizing the measurements of the at least one parameter for determining a health condition of the electrical machine.

    Condition monitoring device for monitoring operations of motor

    公开(公告)号:US11448701B2

    公开(公告)日:2022-09-20

    申请号:US16772770

    申请日:2018-12-07

    Applicant: ABB Schweiz AG

    Abstract: The present disclosure discloses a Condition Monitoring Device (CDM), configured to monitor power consumption and loading of motor. The CDM receives value of a measured current in a stator of the motor, and measures at least one of a magnetic flux around the motor and vibrations in the motor. The magnetic flux, the vibrations and the current in the stator are measured within a predefined time window. The CDM calculates various parameters of the motor and estimates a value of current using the measurements and rated parameters stored in the CDM. The estimated parameter of current is compared with the measured value of current. A value of rotor speed (one of the rated parameters) is varied until the value of the estimated current is approximately equal to the value of the measured current. The value of current is considered to monitor power consumption and loading of the motor.

    SYSTEM AND METHOD FOR MONITORING CIRCUIT BREAKERS

    公开(公告)号:US20190252135A1

    公开(公告)日:2019-08-15

    申请号:US16394692

    申请日:2019-04-25

    Applicant: ABB Schweiz AG

    Abstract: System and method for monitoring a travel curve of moving part of circuit breaker comprising: device for optically monitoring travel path and comprising: light source; light detection device; optical element having plurality of zones with different optical properties which are alternately arranged, the optical element being provided on moving part of circuit breaker, light being intensity-modulated by the optical element and being received by light detection device during circuit breaker operation. The system further comprises an accelerometer mounted to circuit breaker, control unit for receiving signals from light detection device and from accelerometer, the control unit being configured to determine the travel curve based on the detected modulated light and on the detected vibration signal, the vibration signal being employed to identify a change of direction of movement of the moving part.

    Method and system for detecting rotor fault using triaxial magnetic field sensor

    公开(公告)号:US10353004B2

    公开(公告)日:2019-07-16

    申请号:US15310782

    申请日:2015-03-24

    Applicant: ABB Schweiz AG

    Abstract: In aspects, the present invention discloses a method of detecting a rotor fault in an electric machine using a data analysis unit. The method comprises measuring magnetic field strength along a first axis and a second axis, determining operating slip frequency of the electric machine using the measured magnetic field strength along the first axis and the second axis, determining an amplitude of the determined operating slip frequency in a first frequency spectrum and an amplitude of operating slip frequency in a second frequency spectrum, and detecting the rotor fault by comparing the amplitude of the determined operating slip frequency in the first frequency spectrum and the amplitude of operating slip frequency in the second frequency spectrum against a predetermined threshold.

    Portable apparatus for controlling robot and method thereof

    公开(公告)号:US10166673B2

    公开(公告)日:2019-01-01

    申请号:US15235719

    申请日:2016-08-12

    Applicant: ABB Schweiz AG

    Abstract: A portable apparatus for controlling a robot and a method therefor. The portable apparatus includes: an orientation sensor adapted for measuring orientation of the portable apparatus; an HMI device adapted for detecting two-dimensional manual motion relative to the HMI device; and a processing unit adapted for receiving a first signal representing the measured orientation of the portable apparatus and a second signal representing the detected two-dimensional manual motion relative to the HMI device and controlling a part of the robot to move in a direction in consideration of the measured orientation of the portable apparatus and the detected two-dimensional manual motion relative to the HMI device. By having the portable apparatus and the method therefor as explained herein, the two-dimensional manual movement on touch panel is integrated with orientation of the portable apparatus and an integration of these is mapped by the robot, which makes it possible to define a path in three dimensional space for jogging/teaching robot's movements in three dimension.

    SYSTEM FOR CONDITION MONITORING OF ELECTRIC MACHINE, MOBILE PHONE AND METHOD THEREOF
    6.
    发明申请
    SYSTEM FOR CONDITION MONITORING OF ELECTRIC MACHINE, MOBILE PHONE AND METHOD THEREOF 审中-公开
    电机监控系统,移动电话及其方法

    公开(公告)号:US20160306012A1

    公开(公告)日:2016-10-20

    申请号:US15196858

    申请日:2016-06-29

    Applicant: ABB Schweiz AG

    CPC classification number: G01R31/343 G01R29/0814 G01R33/04 G01R33/10

    Abstract: It is proposed a system for condition monitoring electric machine and the method thereof. The system includes a portable unit, being adapted for free movement around said electric machine; a magnetic field sensor, being adapted for measuring magnetic field intensity at at least one of a plurality points of a path of said free movement; a processing unit, being adapted for receiving at least one corresponding magnetic field intensity signal from said magnetic field sensor, comparing at least one magnetic field intensity value to at least one corresponding expected value, and determining, based on the comparison, if a fault is present in the electric machine; wherein: said magnetic field sensor and said processing unit are integrated into said portable unit. And the method includes steps of moving said portable unit to at least one point of a plurality points of a path of said free movement around said electric machine; measuring at least one magnetic field intensity at said at least one of a plurality points of a path of said free movement; and comparing at least one magnetic field intensity value to at least one corresponding expected value, and determining, based on the comparison, if a fault is present in the electric machine.

    Abstract translation: 提出了一种状态监测电机系统及其方法。 该系统包括便携式单元,适于围绕所述电机自由移动; 磁场传感器,适于测量所述自由运动的路径中的至少一个点处的磁场强度; 处理单元,适于从所述磁场传感器接收至少一个对应的磁场强度信号,将至少一个磁场强度值与至少一个对应的预期值进行比较,并且基于所述比较确定故障是否为 存在于电机中; 其中:所述磁场传感器和所述处理单元被集成到所述便携式单元中。 并且该方法包括以下步骤:将所述便携式单元移动到围绕所述电机的所述自由运动的路径的多个点的至少一个点; 在所述自由运动的路径的所述至少一个点处测量至少一个磁场强度; 以及将至少一个磁场强度值与至少一个对应的预期值进行比较,以及基于所述比较来确定电机中是否存在故障。

    System for monitoring operation status of electric machine and mobile phone therefor and server-based system using the same

    公开(公告)号:US10670657B2

    公开(公告)日:2020-06-02

    申请号:US15453411

    申请日:2017-03-08

    Applicant: ABB Schweiz AG

    Abstract: A system configured for monitoring the operation status of an electric machine; a mobile phone therefor and server-based system using the same. The system includes a portable unit, adapted for free movement around the electric machine; an airborne acoustics sensor, adapted for measuring acoustic data produced by the electric machine at a first position in a path of the free movement; a magnetic field sensor, adapted for measuring magnetic field data produced by the electric machine at a second position in the path of the free movement; and a processing unit, adapted for calculating the operation status of the electric machine based on the acoustic data from the airborne acoustics sensor and the magnetic field data from the magnetic field sensor; wherein: the airborne acoustics sensor and the magnetic field sensor are integrated with the portable unit.

    System for localizing sound source and the method therefor

    公开(公告)号:US09743202B2

    公开(公告)日:2017-08-22

    申请号:US14760755

    申请日:2013-03-21

    Applicant: ABB Schweiz AG

    CPC classification number: H04R29/004 G01S3/8022 G01S3/8032 G01S3/809 G01S5/20

    Abstract: It is provided a system for localizing a sound source and a method therefor. The system includes a movable unit, being adapted for free movement and being integrated with a microphone; a motion tracking unit; and a processing unit, being adapted for receiving microphone signal and motion tracking unit signal and obtaining information on a direction from which sound from the sound source arrives using the microphone signal and motion tracking unit signal obtained during movement of the movable unit. By having the system and the method therefor, it is helpful for solving at least one of the technical problems: the complexity and a large volume of an acoustic camera for localization of a sound source; the restriction of the movement of the microphone in a sound source localization system.

    CONDITION MONITORING DEVICE AND MONITORING SYSTEM USING THE SAME

    公开(公告)号:US20170192405A1

    公开(公告)日:2017-07-06

    申请号:US15257272

    申请日:2016-09-06

    Applicant: ABB Schweiz AG

    CPC classification number: G05B19/048 G01M13/00 G01M13/028

    Abstract: A condition monitoring device and monitoring system in one form includes an enclosure being shaped into a form of a portable tool for daily use, including a part for performing daily use functionality and being adapted to be carried by a user; and at least one sensor block being housed in the enclosure, being adapted for measuring data produced by a machine. The condition monitory device can be included in a system of multiple devices. The enclosure can take many forms including but not limited to a writing element, a memory unit (such as but not limited to a memory stick), and a screwdriver. The device can include a sensor block and a communication block. In some forms the device can be a mobile phone. The device can be included in a system that includes a server for processing signals, and/or a portable device that includes a processor.

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