-
公开(公告)号：US20240136824A1
公开(公告)日：2024-04-25
申请号：US18047842
申请日：2022-10-18
Applicant: ABB Schweiz AG
Inventor： Veerakumar Bose , Thomas Anthony Kendzia, III
CPC classification number: H02J3/388 , H02J3/0012 , H02J3/007 , H02J3/44
Abstract: A system and a method for connecting electrical load(s) to a first power source and a second power source including a switching device and a controller. The switching device includes a first semiconductor device pair and a second semiconductor device pair. The controller configured to receive a first set of electronic signals corresponding to a condition of the first power source and the second power source, isolate the first power source or the second power source from the one or more loads by transmitting a first set of control signals to the switching device, receive a second set of electronic signals corresponding to the condition of the first power source and the second power source, and connect the first power source or the second power source to the one or more loads by transmitting a second set of control signals to the switching device.
-
12.发明公开公开(公告)号：US20240030741A1
公开(公告)日：2024-01-25
申请号：US17869949
申请日：2022-07-21
Applicant: ABB Schweiz AG
Inventor： Veerakumar Bose , Christopher A. Belcastro
IPC: H02J9/06 , G01R19/10 , G01R19/165
CPC classification number: H02J9/062 , G01R19/10 , G01R19/16571
Abstract: A system for using one of two independent alternating power sources to power a load is provided. The system sets a flux match to a first value, wherein the flux match indicates a set range for switching between powering the load using a first power source and powering the load using a second power source. The system switches between powering the load using the first power source and powering the load using the second power source using the first flux match value. The system further obtains a first set of inrush current values associated with the switching. Based on the first set of inrush current values and a maximum inrush current threshold, the system adjusts the flux match to a second value and switches between powering the load using the first power source and powering the load using the second power source using the second flux match value.
-
公开(公告)号：US11258296B1
公开(公告)日：2022-02-22
申请号：US17100040
申请日：2020-11-20
Applicant: ABB Schweiz AG
Inventor： Veerakumar Bose , Thomas Kendzia, III , Christopher Alan Belcastro , Harshang Shah
Abstract: A static transfer switch is provided for supplying power to a load alternately from two different power sources. Switching between the two power sources may occur within a fraction of one electrical cycle. In response to sensing degraded performance in the power source supplying the load, a main circuit is turned off with a resonant turn off circuit. The resonant turn off circuit is shared between the main circuits of two different power sources such that the resonant turn off circuit is connected to the main circuit of whichever power source is currently supply power to the load.
-
公开(公告)号：US11211816B1
公开(公告)日：2021-12-28
申请号：US17100044
申请日：2020-11-20
Applicant: ABB Schweiz AG
Inventor： Veerakumar Bose , Thomas Kendzia, III , Christopher Alan Belcastro
Abstract: A static transfer switch is provided for supplying power to a load alternately from two different power sources. Switching between the two power sources may occur within a fraction of one electrical cycle. In response to sensing degraded performance in the power source supplying the load, resonant turn off circuits connected directly to the main switches of two phases of the power source are actuated to commutate the respective main switches. The main switch of the third phase is commutated with one or more of the resonant turn off circuits through the delta side of a transformer connected to the three phases of the power source.
-
公开(公告)号：US20250149913A1
公开(公告)日：2025-05-08
申请号：US18503476
申请日：2023-11-07
Applicant: ABB Schweiz AG
Abstract: A method operable by a controller of a static transfer switch (STS) is provided. The STS includes first and second inputs selectively coupled with first and second power sources via first and second circuit breakers, respectively, an output coupled with a load, first and second bypass breakers selectively coupling the first and second inputs, respectively, with the output, at least one removable power stage module including first and second power stages configured to conduct electrical power when active, first and second contactors selectively coupling the first and second inputs with the first and second power stages, respectively, and a load switch selectively coupling the first and second power stages with the output. The method includes modifying an operating state of the first and second contactors and the first and second power stages to implement a bypass operation and an un-bypass operation of the STS in response to a trigger condition.
-
Patent Agency Ranking
公开(公告)号：US20250112458A1
公开(公告)日：2025-04-03
申请号：US18478612
申请日：2023-09-29
Applicant: ABB Schweiz AG
Inventor： Veerakumar Bose , Christopher Alan Belcastro , Lakkimsetti Anjankumar
Abstract: Systems and methods for reducing inrush current to energize a transformer from a first power source or second power source using a transfer switch device including monitoring input phase voltage at a first and second switching pair, sending a first set of gate signals to the first switching pair and second set of gate signals to the second switching pair to selectively couple the transformer to the first power source or second power source, and operating the first switching pair and second switching pair in a normal operating mode at a next cycle once transformer flux reaches a saturation point. The transfer switch device includes a first switch and second switch connected to the first power source and second power source, respectively, and each switch including the first switching pair and second switching pair connected in a reverse orientation to enable a bi-directional flow of current at each phase.
-
公开(公告)号：US11923724B2
公开(公告)日：2024-03-05
申请号：US17869949
申请日：2022-07-21
Applicant: ABB Schweiz AG
Inventor： Veerakumar Bose , Christopher A. Belcastro
IPC: H02J7/00 , G01R19/10 , G01R19/165 , H02J9/06
CPC classification number: H02J9/062 , G01R19/10 , G01R19/16571
Abstract: A system for using one of two independent alternating power sources to power a load is provided. The system sets a flux match to a first value, wherein the flux match indicates a set range for switching between powering the load using a first power source and powering the load using a second power source. The system switches between powering the load using the first power source and powering the load using the second power source using the first flux match value. The system further obtains a first set of inrush current values associated with the switching. Based on the first set of inrush current values and a maximum inrush current threshold, the system adjusts the flux match to a second value and switches between powering the load using the first power source and powering the load using the second power source using the second flux match value.
-
公开(公告)号：US11742849B2
公开(公告)日：2023-08-29
申请号：US17510299
申请日：2021-10-25
Applicant: ABB Schweiz AG
Inventor： Yuzhi Zhang , Xiaoqing Song , Veerakumar Bose
CPC classification number: H03K17/60 , H01L29/7408 , H02J3/007 , H03K17/0403 , H03K17/06 , H03K17/72
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.
-
公开(公告)号：US20230187963A1
公开(公告)日：2023-06-15
申请号：US17548829
申请日：2021-12-13
Applicant: ABB Schweiz AG
Inventor： Yuzhi Zhang , Yu Du , Xiaoqing Song , Harish Suryanarayana , Veerakumar Bose , Thomas Anthony Kendzia, III , Harshang Shah , Christopher Alan Belcastro
CPC classification number: H02J9/06 , H02J7/0047 , H02J7/00712
Abstract: A method of operating a static transfer switch is provided. The method includes monitoring a voltage waveform for each phase of first and second power sources, and calculating flux for each phase of the power sources. The method also includes determining (i) a first flux difference between the respective flux of the first phases of the first and second power sources, (ii) a second flux difference between the respective flux of the second phases of the first and second power sources, and (iii) a third flux difference between the respective flux of the third phases of the first and second power sources. The method further includes turning off a third solid-state switch to disconnect the third phase of the first power source from a load, in response to the controller determining that the third flux difference is greater the first and second flux differences.
-
公开(公告)号：US20230128049A1
公开(公告)日：2023-04-27
申请号：US17510299
申请日：2021-10-25
Applicant: ABB Schweiz AG
Inventor： Yuzhi Zhang , Xiaoqing Song , Veerakumar Bose
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.
-
-
-
-
-
-
-
-
-
Search Results
20
records
(took 0.023 seconds)
