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公开(公告)号：WO2023092121A1
公开(公告)日：2023-05-25
申请号：PCT/US2022/080238
申请日：2022-11-21
Applicant: ABB SCHWEIZ AG , KADAVELUGU, Arun K.
Inventor： MOBARREZ, Maziar
IPC: H02M1/32 , H02M7/5387 , H02J9/06 , H02M7/487
Abstract: An inverter is provided. The inverter includes a DC bus having positive and negative rails and an inverter arm coupled between the positive and negative rails of the DC bus. The inverter arm includes first and second silicon carbide transistor having a current-conducting terminals connected to a central node of the inverter arm. The inverter further includes at least one silicon transistor having a third current-conducting terminal connected to the central node of the inverter arm. The inverter further includes a gate driver circuit configured to switch the first silicon carbide transistor and the second silicon carbide transistor to convert DC from said DC bus into AC, and to switch said at least one silicon transistor, when the inverter arm is subjected to a load-side short circuit current, to freewheel the load-side short circuit current.
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2.发明申请
公开(公告)号：WO2023088665A1
公开(公告)日：2023-05-25
申请号：PCT/EP2022/080267
申请日：2022-10-28
Applicant: ABB SCHWEIZ AG
Inventor： ABUKWAIK, Hadil , SHARMA, Divyasheel , KLOEPPER, Benjamin , KOTRIWALA, Arzam Muzaffar , RODRIGUEZ, Pablo , SCHMIDT, Benedikt , TAN, Ruomu , K R, Chandrika , BORRISON, Reuben , DIX, Marcel , DOPPELHAMER, Jens
Abstract: A method (100) for training a prediction model (1) for predicting the likelihood that at least one predetermined undesired event will occur during execution of a process (2) using training samples (3), wherein each training sample (3) comprises data that characterizes a state of the process (2), and the method (100) comprises the steps of: obtaining (110) training samples (3) representing states of the process (2) that do not cause the undesired event, and labelling these training samples with a pre-set low likelihood of the undesired event occurring; obtaining (120), based at least in part on a process model (2a) and a set of predetermined rules (2b) that stipulate in which states of the process (2) there is an increased likelihood of the undesired event occurring, further training samples (4) representing states of the process (2) with an increased likelihood to cause the undesired event, and labelling these training samples (4) with said increased likelihood; providing (130) training samples (3, 4) to the to-be-trained prediction model (1), so as to obtain, from the prediction model (1), a prediction (5) of the likelihood for occurrence of the undesired event in a state of the process (2) represented by the respective sample (3, 4); rating (140) a difference between the prediction (5) and the label of the respective sample (3, 4) by means of a predetermined loss function (6); and optimizing (150) parameters (1a) that characterize the behavior of the prediction model (1), such that, when predictions (5) on further samples (3, 4) are made, the rating (6a) by the loss function (6) is likely to improve.
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3.发明申请
公开(公告)号：WO2023079353A1
公开(公告)日：2023-05-11
申请号：PCT/IB2021/060312
申请日：2021-11-08
Applicant: ABB SCHWEIZ AG
Inventor： VALSAN, Simi , GUPTA, Arinjai
Abstract: The present disclosure discloses a method and a system for controlling an on-load tap changer of a transformer during reverse power flow. The method comprises determining a loss ratio factor using voltage and current values for each of a primary side and a secondary- side of a transformer. Further, the method comprises determining a relative strength of a first source connected to the primary side and a second source connected to the secondary side of the transformer based on the loss ratio factor. Thereafter, transmitting a control signal to an on-load tap changer of the transformer to regulate voltage on the primary- side or on the secondary side of the transformer based on the relative strength of the first source and the second source.
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公开(公告)号：WO2023076860A1
公开(公告)日：2023-05-04
申请号：PCT/US2022/078589
申请日：2022-10-24
Applicant: ABB SCHWEIZ AG , ZHANG, Yuzhi
Inventor： SONG, Xiaoqing , BOSE, Veerakumar
Abstract: Disclosed herein is a hybrid resonant capacitor circuit including a first capacitor configured to discharge resonant current to interrupt a load current to a switch in parallel with the hybrid resonant capacitor circuit, a second capacitor coupled in parallel with the first capacitor, wherein the second capacitor is configured to transfer energy stored in the second capacitor to the first capacitor after discharge of the resonant current from the first capacitor, and a current limiter coupled in series with the second capacitor. A static transfer switch including a thyristor switch and the hybrid resonant capacitor circuit is also disclosed herein, as is a method for facilitating multiple consecutive voltage source transfers between a first voltage source and a second voltage source powering a load, using the hybrid resonant capacitor circuit.
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公开(公告)号：WO2023060403A1
公开(公告)日：2023-04-20
申请号：PCT/CN2021/123132
申请日：2021-10-11
Applicant: ABB SCHWEIZ AG , ZHU, Weijin , WANG, Chunxiang , GAO, Shaofeng , TIAN, Yin
Inventor： ZHU, Weijin , WANG, Chunxiang , GAO, Shaofeng , TIAN, Yin
Abstract: A method and an electronic device for controlling a robotic system. The method comprises obtaining scanned data about a first junction and a second junction for welding a body frame and a roof of a bus (410), the first and second junctions arranged on opposite sides of the bus; determining a plurality of welding points associated with the first and second junctions based on the obtained scanned data (420); and controlling, based on the plurality of welding points, the robotic system to weld the body frame and the roof along the first and second junctions (430). With the method of the present disclosure, the roof and the body frame of the bus can be welded automatically. In comparison to the processes of welding by the an operator, errors caused by human factors are eliminated, which can significantly improve welding quality and welding consistency. Furthermore, the method can be used to assembly assemble various types of buses on a production line automatically, which can significantly improve the production efficiency of the production line.
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Patent Agency Ranking
公开(公告)号：WO2023056613A1
公开(公告)日：2023-04-13
申请号：PCT/CN2021/122708
申请日：2021-10-08
Applicant: ABB SCHWEIZ AG , JI, Fei
Inventor： JI, Fei
IPC: H02M1/08
Abstract: Embodiments of present disclosure relate to a bidirectional bridgeless PFC circuit. The bidirectional bridgeless PFC circuit comprises a main circuit comprising an input inductor and configured to receive an AC voltage from an AC power supply at a first terminal of the input inductor and convert the AC voltage to a DC voltage, wherein a direction of a current flowing through the input inductor during a positive half of the AC voltage is different from a direction of the current flowing through the input inductor during a negative half of the AC voltage; a current detection circuit electrically coupled to the input inductor and configured to generate a detection signal indicating an amount of the current flowing through the input inductor only during a discharge phase of the input inductor; and a controller electrically coupled to the main circuit and the current detection circuit and configured to generate a zero-crossing signal based on the detection signal. With these embodiments, the direction of the current in the bidirectional PFC circuit can be detected with only one current detection circuit, and the zero-crossing point of the current can be easily determined. Therefore, the power consumption, the size and the control complexity of the PFC circuit can be maintained at a low level.
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公开(公告)号：WO2023046303A1
公开(公告)日：2023-03-30
申请号：PCT/EP2021/076499
申请日：2021-09-27
Applicant: ABB SCHWEIZ AG , WAHRBURG, Arne , BJORKMAN, Mattias , SPAMPINATO, Giacomo , NORRLÖF, Mikael , ENAYATI, Nima , HAULIN, Jonas
Inventor： WAHRBURG, Arne , BJORKMAN, Mattias , SPAMPINATO, Giacomo , NORRLÖF, Mikael , ENAYATI, Nima , HAULIN, Jonas
IPC: B25J9/16
Abstract: A method for defining a trajectory of a robot (1) for moving along a path from an initial point (A) to a final point (B) in a multidimensional space, each of whose points has a plurality of space coordinates, which are position and/or orientation coordinates, wherein the trajectory is a continuous map mapping an initial instant in time to the initial point (A), a final instant to the final point (B) and intermediate instants to intermediate points of the path, comprises the steps of defining (S3) a cost function which associates a cost value to a given trajectory, defining (S3) a pluridimensional subspace of said multidimensional space and determining (S4) among trajectories extending along different paths of said subspace, a trajectory which minimizes the cost function.
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8.发明申请
公开(公告)号：WO2023041184A1
公开(公告)日：2023-03-23
申请号：PCT/EP2021/075806
申请日：2021-09-20
Applicant: ABB SCHWEIZ AG
Inventor： STENOW, Erik
Abstract: A base unit (16) for a feeding system (12) for feeding parts (42) to an industrial device (14), the base unit (16) comprising a main body (26) having a rigid engageable structure (60a, 60b) configured to mate with a rigid engaging structure (66a, 66b) of a modular feeding unit (18a-18d) in a mating direction (68) to align a position of the modular feeding unit (18a-18d) in relation to the main body (26); an electric control system (36) for controlling the modular feeding unit (18a-18d); and an electric base interface (56) for electrically connecting the modular feeding unit (18a-18d) to the control system (36). A feeding system (12), an industrial system (10) and a method of handling a feeding system (12) are also provided.
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公开(公告)号：WO2023041161A1
公开(公告)日：2023-03-23
申请号：PCT/EP2021/075482
申请日：2021-09-16
Applicant: ABB SCHWEIZ AG
Inventor： FINNESTAD, Yngve , TAWATA, Takahiro
Abstract: A method of applying coating medium (26) to a surface (24) of an object (12), the method comprising applying coating medium to an inner region (58) of the surface such that the coating medium on the inner region has an inner thickness (66); and applying coating medium to an outer region (60) of the surface, adjacent to the inner region, to form an edge (62) of the coating medium at a side of the outer region opposite to the inner region and such that the coating medium on the outer region has an outer thickness (68), wherein a minimum value of the outer thickness is 30 % to 80 % of the inner thickness, and wherein a maximum value of the outer thickness is equal to or less than the inner thickness. A control system (16) for controlling application of coating medium and a coating system (10) for applying coating medium are also provided.
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公开(公告)号：WO2023039819A1
公开(公告)日：2023-03-23
申请号：PCT/CN2021/118998
申请日：2021-09-17
Applicant: ABB SCHWEIZ AG , LIU, Yongping
Inventor： LIU, Yongping
Abstract: Embodiments of the present disclosure provide a pressing device for fixing a workpiece onto a worktable, comprising: a supporting member extending in a first direction and comprising first and second ends opposite to each other in the first direction and first and second sides opposite to each other in a second direction normal to the first direction; a pressing arm connected to the first end of the supporting member and being capable of rotating between a closed state and an opened state with respect to the supporting member, wherein a space for receiving the workpiece is formed between the pressing arm and the supporting member when the pressing arm is in the closed state; a first driving assembly arranged on the first side of the supporting member and configured to drive the pressing arm to rotate between the closed state and the opened state with respect to the supporting member; a locking assembly arranged on the first side of the supporting member near to the second end of the supporting member and configured to lock the pressing arm when the pressing arm is in the closed state; and a second driving assembly coupled to the second side of the supporting member and configured to drive the supporting member to move in the second direction.
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