公开(公告)号：US20230026139A1

公开(公告)日：2023-01-26

申请号：US17868975

申请日：2022-07-20

Applicant: ABB Schweiz AG

Inventor： Joerg Ostrowski ,  Stephan Wildermuth ,  Ralf Gitzel ,  Patrik Reto Kaufmann ,  Joerg Gebhardt ,  Kai Koenig ,  Boguslaw Samul

IPC: G01J5/80

Abstract: A system and method includes at least one temperature sensor, a processing unit, and an output unit. The temperature sensor acquires a temperature measurement at a first location of an operational device, which first location is in thermal contact with a second location of the operational device. The processing unit selects a simulated temperature distribution of the first location of a simulated device from a plurality of simulated temperature distributions of the first location and compares the temperature measurement with simulated temperature distributions of the first location, and determines whether a hot spot exists or is developing at the second location. The determination comprises utilization of a correlation between the simulated temperature distribution of the first location and the second location for the selected simulated temperature distribution of the first location of the simulated device.

公开(公告)号：US11694528B2

公开(公告)日：2023-07-04

申请号：US17187894

申请日：2021-03-01

Applicant: ABB Schweiz AG

Inventor： Patrik Reto Kaufmann ,  Joerg Ostrowski ,  Stephan Wildermuth ,  Ralf Gitzel ,  Joerg Gebhardt

IPC: G06T7/00 ,  G06K9/62

CPC classification number: G06T7/0004 ,  G06K9/6201 ,  G06T2207/10048 ,  G06T2207/30164 ,  G06T2207/30232

Abstract: A low or medium voltage switchgear monitoring system includes: at least one sensor; a processing unit; and an output unit. The at least one sensor acquires sensor data within a compartment of a switchgear. The sensor data includes first sensor data. The sensor data includes second sensor data. The second sensor data is acquired a set time after the first sensor data. The at least one sensor provides the first sensor data and the second sensor data to the processing unit. The processing unit determines status information for a compartment of the switchgear based on a comparison of the second sensor data to the first sensor data. The output unit outputs the status information.

公开(公告)号：US20230043212A1

公开(公告)日：2023-02-09

申请号：US17970797

申请日：2022-10-21

Applicant: ABB Schweiz AG

Inventor： Ralf Gitzel ,  Stephan Wildermuth ,  Joerg Gebhardt ,  Joerg Ostrowski ,  Patrik Reto Kaufmann

IPC: G01N29/12 ,  G01J5/10 ,  G06T7/00

Abstract: A fault state detection apparatus includes an input unit and a processing unit. The input unit receives condition monitoring data. The processing unit implements a trained machine learning algorithm to analyze the received condition monitoring data to determine if the received condition monitoring data is associated with a fault state. The trained machine learning algorithm was trained on the basis of a plurality of non-fault state condition monitoring data and associated ground truth information and on the basis of a plurality of fault state condition monitoring data and associated ground truth information. A subset of the plurality of fault state condition monitoring data was generated from one or more non-fault state condition monitoring data. Generation of fault state conditioning monitoring data in the subset of the plurality of fault state condition monitoring data comprises a transformation of non-fault state condition monitoring data to fault state condition monitoring data.

公开(公告)号：US20230014691A1

公开(公告)日：2023-01-19

申请号：US17863797

申请日：2022-07-13

Applicant: ABB Schweiz AG

Inventor： Joerg Ostrowski ,  Patrik Reto Kaufmann ,  Stephan Wildermuth ,  Ralf Gitzel ,  Kai Koenig ,  Joerg Gebhardt ,  Boguslaw Samul

IPC: G01J5/00 ,  G01J5/08 ,  G01R19/00 ,  G01R31/327

Abstract: A system and method for monitoring a device includes a temperature sensor, a processing unit, and an output unit. The temperature sensor acquires a temperature measurement during a heat-up phase of a component and provides a temperature measurement to the processing unit, which selects a simulated transient temperature distribution of the simulated component of the simulated device from a plurality of simulated transient temperature distributions of the simulated component of the simulated device. The selection comprises a comparison of the at least one temperature measurement with the plurality of simulated transient temperature distributions at an equivalent time point in the simulated heat-up to a time point at which the temperature measurement was acquired. When a hot spot is developing an output unit outputs an indication of a fault associated with the component.

公开(公告)号：US20220357206A1

公开(公告)日：2022-11-10

申请号：US17871064

申请日：2022-07-22

Applicant: ABB Schweiz AG

Inventor： Joerg Gebhardt ,  Stephan Wildermuth ,  Ralf Gitzel ,  Kai Koenig ,  Joerg Ostrowski ,  Patrik Reto Kaufmann ,  Boguslaw Samul

IPC: G01J5/00 ,  G06T7/00 ,  H04N5/247 ,  G01R31/327

Abstract: A system for monitoring a switchgear includes multiple infrared cameras with fields of view; a processing unit; and an output unit. The cameras acquire multiple image data of a plurality of phases of the switchgear, and the processing unit determines whether there is a phase imbalance in a specific phase comprising a determination from a plurality of image data that temperature information for a plurality of component parts and/or a plurality of connections for that specific phase has an overall enhanced temperature compared to the temperature information for the same plurality of component parts and/or the same plurality of connections for one or more other phases of the plurality of phases. The output unit is configured to output information that a fault or load imbalance has occurred in a phase.