ABB Patente

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The invention relates to a method for controlling a virtual assistant (10) for an industrial plant, comprising: receiving (S10), by an input interface (20), an information request (Ir), wherein the information request (Ir) comprises at least one request for receiving information about at least part of the industrial plant; determining (S20), by a control unit (30), a model specification (Ms) using the received information request (Ir); determining (S30), by a model manager (40), a machine learning model (M) using the model specification (Ms); providing (S40), by the control unit (30), a response (R) to the information request (Ir) using the determined machine learning model (M).

The present invention relates to vacuum interrupter (10) with a housing (14). The housing (14) has an opening (26) for an axially movable switching rod (22), which is led out of the housing (14) by means of a bellow (30) arranged vacuum-tight to the housing (14), wherein a torsion preventing means for preventing a torsion of the switching rod (22) with respect to the housing (14) is provided. The torsion preventing means is provided by a single torsion lock element (34), interacting with the housing (14) and the switching rod (22) in a form fit manner, wherein the torsion lock element (34) provides engaging means (54) to fix the torsion lock element (34) on the housing (14).

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A method (100) for determining the state of health (1*) of an industrial process (1), wherein the process (1) is executed by at least one industrial plant comprising an arrangement of entities (2a-2f) and the state of each such entity (2a-2f) is characterized by a set of entity state variables (3a-3f), comprising the steps of:• obtaining (110) values, and/or time series of values, of the entity state variables (3a-3f);• for each entity (2a-2f), providing (120) the values (3a-3f), and/or time series of values (3a-3f), to a model (4a-4f) corresponding to the respective entity (2a-2f), thereby obtaining a prediction of the state of health (5a-5f) of the respective entity (2a-2f);• determining (130), based at least in part on the layout (1a) of the industrial plant executing the process (1), propagation paths (6) for anomalies between said entities (2a-2f);• determining (140), based at least in part on said propagation paths (6), importances (7a-7f) of the states of health (5a-5f) of the individual entities (2a-2f) for the overall state of health (1*) of the process; and• aggregating (150), based at least in part on said importances (7a-7f), the individual states of health (5a-5f) of the entities (2a-2f) to obtain the overall state of health (1*) of the process (1).

A crowbar device is provided. The crowbar device has a first terminal (1) and a second terminal (2), the terminals (1, 2) being connectible to a medium to high impedance AC voltage source (AV), the crowbar device comprising a trigger circuit (B) connected between the first terminal (1) and the second terminal (2) and configured to output a trigger signal responsive to exceeding a threshold voltage across at least one trigger element of the trigger circuit (B); a positive-side signaling circuit (C) and a negative-side signaling circuit (D) configured to output a positive or a negative clamping signal, respectively, according to a positive-voltage or a negative-voltage signal, respectively, input from the trigger circuit (B); and a positive-side overvoltage clamping circuit (E) and a negative-side overvoltage clamping circuit (F) each comprising a controllable semiconductor element (ES, FS) connected between the first terminal (1) and the second terminal (2), the overvoltage clamping circuits (E, F) being configured to control their respective semiconductor element (ES, FS) to be in a conducting state, when the clamping signal from the corresponding signaling circuit (C, D) is present, and configured to control their semiconductor element (ES, FS) to be in a non-conducting state, when the corresponding clamping signal has not been present for a predetermined time period.

A method for recognising a communication protocol of data packets (M1, M2) travelling over a communication bus (20). The method comprises a CRC check procedure (PCRC1, PCRC2) for processing a data packet (M1, M2) travelling over said communication bus (20), said CRC check procedure comprising: - calculating a first checksum string (CKS1) by processing the payload portion (S1) of said data packet, according to a first CRC-generation engine associated to said first communication protocol (PR1); - calculating a second checksum string (CKS2) by processing the payload portion (S1) of said data packet, according to a second CRC-generation engine associated to said second communication protocol (PR2); - comparing with said first and second checksum strings (CKS1, CKS2) with the CRC portion (S2) of said data packet.

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Electrical bushing (100) for medium and high voltage comprising a dielectric bushing main body a conductor (110) extending through the bushing main body and being electrically insulated by the bushing main body, at least a conductive foil (120) concentrically arranged around the conductor (110) along at least a part of its length, and a barrier layer (200) at least partially covering an edge region (140) of said conductive foil (120), wherein the barrier layer (200) has a dielectric strength greater than the dielectric strength of the dielectric bushing main body and greater than 150 kV/mm.

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The present disclosure relates to methods of predicting lifetime of a power semiconductor device. According to the invention there is provided a method for predicting a lifetime of a power semiconductor device comprising of: a) obtaining data related to working conditions of the power semiconductor device; b) calculating a switching frequency with its peaks in switching cycle on a basis of obtained data; c) calculating at least one KPI, Key Performance Indicators; d) implementing received KPIs and an at least one input feature to Machine Learning model; e) estimating lifetime of the power semiconductor device by receiving total number of switching cycles that the power semiconductor device is able to perform throughout its lifetime.

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A method (100) for operating a distributed control system, DCS (1), of an industrial plant, wherein the DCS comprises a plurality of controllers (11-13), and each such controller (11-13) is configured to communicate with a plurality of subordinate devices (2, 3) over a time sensitive network, TSN, the method (100) comprising the steps of:• providing (110) a control application (14) that comprises, for each controller (11-13), instructions (14a) to contact particular to-be-used subordinate devices (2, 3) and perform control logic using these subordinate devices (2, 3);• obtaining (120), by each controller (11-13), information about TSN capabilities (2a, 3a) of the to-be-used subordinate devices (2, 3);• computing (130), by each controller (11-13), a TSN communication schedule (11a-13a) for communication between this controller (11-13) and the to-be-used subordinate devices (2, 3); and• performing (170), by each controller (11-13), according to the communication schedule (11a-13a), the control logic with the to-be-used subordinate devices (2, 3).

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The invention relates to an aggregating server (100) comprising a remote node input interface (103) configured to receive node images representing nodes in a remote address space (140); an address space description interface (101) configured to import node description information of nodes (150, 152, 154, 156) in the remote address space (140) to be aggregated; an aggregation module (107), configured to instantiate proxy nodes (104, 106, 108) based on the received node data of nodes in the remote address space (140); and a node filter (102) located between the remote node input interface (103) and the aggregation module (107), configured to filter the received node images from the remote node input interface (103) according to the imported node description information of nodes in the remote address space (140) to be aggregated.

The present invention relates to a switch for a medium voltage or high voltage switchgear. The switch comprises a first fixed contact, a second fixed contact, a moveable contact, at least one flexible link, and a contact drive. In an on state of the switch the moveable contact is configured to be in a position that connects the first fixed contact to the second fixed contact. In an off state of the switch the moveable contact is configured to be in a position where the first fixed contact is not connected to the second fixed contact. The at least one flexible link is connected to the moveable contact. The at least one flexible link engages with the contact drive. The contact drive is configured to pull the moveable contact via the at least one flexible link and the contact drive is configured to push the moveable contact via the at least one flexible link. Activation of the contact drive in a first mode is configured to move the moveable contact to the position such that the switch is in the on state. Activation of the contact drive in a second mode is drive is configured to move the moveable contact to the position such that the switch is in the off state.

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