公开(公告)号：US20180191287A1

公开(公告)日：2018-07-05

申请号：US15908129

申请日：2018-02-28

Applicant: ABB Schweiz AG

Inventor： Sara Ahmed ,  Zhiguo Pan ,  Hongrae Kim

IPC: H02P27/04 ,  H02P27/08

CPC classification number: H02P27/047 ,  H02P23/0077 ,  H02P27/08

Abstract: A unique system may include a power absorber; an electrical machine coupled to the power absorber and operative to supply mechanical power to the power absorber; a drive coupled to the electrical machine and operative to supply electrical power to drive the electrical machine; and a controller communicatively coupled to the drive. The controller may be configured to execute program instructions to selectively vary a control voltage while maintaining a given torque output of the electrical machine, and to determine, based on varying the control voltage, a minimum current required for the electrical machine to maintain the given torque output.

公开(公告)号：US10483693B2

公开(公告)日：2019-11-19

申请号：US15762107

申请日：2015-09-24

Applicant: ABB Schweiz AG

Inventor： Zhiguo Pan ,  Yu Du ,  Emanuele Borla ,  Rajib Mikail ,  Hongrae Kim

IPC: H01R13/53 ,  H01R13/635 ,  H01R24/78 ,  H01R13/14 ,  H01R103/00 ,  H01R24/28 ,  H01R13/502 ,  H01R13/66 ,  H01R24/76

Abstract: A sliding contact assembly for a DC electrical outlet receives plug contacts of an electrical plug. The assembly includes sliding contact structure having a base and a plurality of electrical sliding contacts fixed to the base. A housing includes a first end wall having an internal top surface and second end wall opposing the first end wall. The second end wall has an internal bottom surface. The housing has a side wall structure defining an internal chamber between the top surface and the bottom surface. The sliding contact structure is disposed in the housing to be movable linearly within the chamber. A spring is disposed between the top surface of the housing and a surface of the base so that when the plug contacts are completely disconnected from the associated sliding contacts, the spring rapidly forces the sliding contacts away from the plug contacts, reducing arcing energy there-between.

公开(公告)号：US12107032B2

公开(公告)日：2024-10-01

申请号：US16717493

申请日：2019-12-17

Applicant: ABB Schweiz AG

Inventor： Colin Tschida ,  Pietro Cairoli ,  Hongrae Kim ,  Francesco Agostini ,  Luca Raciti ,  Davide Leoni

IPC: H01L23/427 ,  H01C1/082 ,  H01C7/12 ,  H01L23/495 ,  H02H9/04 ,  H05K7/20

CPC classification number: H01L23/427 ,  H01C1/082 ,  H01C7/12 ,  H01L23/49562 ,  H02H9/044 ,  H05K7/20172 ,  H05K7/20309 ,  H05K7/20318 ,  H05K7/20327 ,  H05K7/20336 ,  H05K7/209 ,  H05K7/20909 ,  H05K7/20936

Abstract: Cooling arrangements are disclosed for solid state circuit breakers. In one arrangement, a MOV is disposed between two pulsating heat pipes. An IGCT is disposed on the other side of each pulsating heat pipe away from the MOV. In another arrangement, a bus bar is integral with a heat spreader disposed between a pulsating heat pipe and an IGCT.

公开(公告)号：US10348093B2

公开(公告)日：2019-07-09

申请号：US15378679

申请日：2016-12-14

Applicant: ABB Schweiz AG

Inventor： Harish Suryanarayana ,  Hongrae Kim ,  Sara Ahmed ,  Peter Steimer ,  Philippe Maibach ,  Hans Krattiger ,  Silverio Alvarez ,  Paolo Casini ,  Jiuping Pan

IPC: H02J1/10 ,  H02J3/38 ,  H02H7/26

Abstract: Unique systems, methods, techniques and apparatuses of a power collection system are disclosed herein. One exemplary embodiment is an MVDC collection system coupled to a utility grid including a collection bus, a plurality of branches coupled to the collection bus, and a branch controller. Each of the plurality of branches include a semiconductor switch coupled to the collection bus, and a DC/DC converter coupled to the semiconductor switch and an LVDC power source. The branch controller configured to determine a fault condition is occurring within the MVDC collection system, determine the location of the fault condition, and isolate the fault condition using at least one of the semiconductor switches and the DC/DC converters.

公开(公告)号：US20180166881A1

公开(公告)日：2018-06-14

申请号：US15378679

申请日：2016-12-14

Applicant: ABB Schweiz AG

Inventor： Harish Suryanarayana ,  Hongrae Kim ,  Sara Ahmed ,  Peter Steimer ,  Philippe Maibach ,  Hans Krattiger ,  Silverio Alvarez ,  Paolo Casini ,  Jiuping Pan

IPC: H02J3/38 ,  H02M3/24 ,  H02M7/44

CPC classification number: H02J3/383 ,  H02H7/268 ,  Y02E10/563

Abstract: Unique systems, methods, techniques and apparatuses of a power collection system are disclosed herein. One exemplary embodiment is an MVDC collection system coupled to a utility grid including a collection bus, a plurality of branches coupled to the collection bus, and a branch controller. Each of the plurality of branches include a semiconductor switch coupled to the collection bus, and a DC/DC converter coupled to the semiconductor switch and an LVDC power source. The branch controller configured to determine a fault condition is occurring within the MVDC collection system, determine the location of the fault condition, and isolate the fault condition using at least one of the semiconductor switches and the DC/DC converters.

公开(公告)号：US10230260B2

公开(公告)日：2019-03-12

申请号：US14862790

申请日：2015-09-23

Applicant: ABB Schweiz AG

Inventor： Pietro Cairoli ,  Hongrae Kim ,  Nicholas James Elliot ,  Simon Walton

IPC: H02J9/06

Abstract: One embodiment is a uninterruptable power supply (UPS) system including a utility disconnect switch (UDS) coupled with an input line and an output line and structured to selectably connect and disconnect the input line and the output line. The UDS includes a semiconductor switching device connected between the input line and the output line, a surge arrester coupled in parallel with the semiconductor switching device, a dynamic voltage balancing device and a static voltage balancing device which are coupled in parallel with the semiconductor switching device.

公开(公告)号：US09998117B2

公开(公告)日：2018-06-12

申请号：US14965385

申请日：2015-12-10

Applicant: ABB Schweiz AG

Inventor： Yu Du ,  Hongrae Kim ,  Taosha Jiang

IPC: H02H5/04 ,  H03K17/94 ,  H03K17/687

CPC classification number: H03K17/94 ,  H01C7/02 ,  H01C7/06 ,  H01H2085/0283 ,  H03K17/687

Abstract: A resettable solid state fuse that automatically restores an interrupted circuit after an overcurrent event is cleared. The resettable solid state fuse can include one or more switching devices, such as, for example, a normally-on power semiconductor, and one or more positive temperature coefficient (PTC) resistive elements. The switching device is structured to extend the voltage rating of the resettable fuse, allowing the solid state resettable fuse to attain both a relatively elevated voltage rating and a relatively elevated electrical current rating while using a PTC resistive element. According to certain embodiments, the solid state resettable fuse can be tripped by a cascaded PTC resistive element, thereby providing a passive electronic device that can operate in the absence of electronic sensing, detection, and tripping, as well as without reliance on an auxiliary power supply.

公开(公告)号：US20180277993A1

公开(公告)日：2018-09-27

申请号：US15762107

申请日：2015-09-24

Applicant: ABB Schweiz AG

Inventor： Zhiguo Pan ,  Yu Du ,  Emanuele Borla ,  Rajib Mikail ,  Hongrae Kim

IPC: H01R13/635 ,  H01R13/14

CPC classification number: H01R13/635 ,  H01R13/14 ,  H01R13/502 ,  H01R13/6633 ,  H01R24/28 ,  H01R24/76 ,  H01R24/78 ,  H01R2103/00

Abstract: A sliding contact assembly for a DC electrical outlet receives plug contacts of an electrical plug. The assembly includes sliding contact structure having a base and a plurality of electrical sliding contacts fixed to the base. A housing includes a first end wall having an internal top surface and second end wall opposing the first end wall. The second end wall has an internal bottom surface. The housing has a side wall structure defining an internal chamber between the top surface and the bottom surface. The sliding contact structure is disposed in the housing to be movable linearly within the chamber. A spring is disposed between the top surface of the housing and a surface of the base so that when the plug contacts are completely disconnected from the associated sliding contacts, the spring rapidly forces the sliding contacts away from the plug contacts, reducing arcing energy there-between.

公开(公告)号：US09666977B2

公开(公告)日：2017-05-30

申请号：US14812648

申请日：2015-07-29

Applicant: ABB Schweiz AG

Inventor： Yu Du ,  Emanuele Borla ,  Rajib Mikail ,  Hongrae Kim ,  Patrick Schneider

IPC: H01R13/53 ,  H01F27/00 ,  H01R13/66

CPC classification number: H01R13/53 ,  H01F27/00 ,  H01R13/6633

Abstract: Technologies for providing DC arc protection in a DC socket include an electromagnet positioned in the DC socket configured to produce a magnetic field. The electromagnet is positioned to be adjacent to a contact region between one or more supply terminals of a DC socket and one or more prongs of a DC plug. As the DC plug is disconnected from the DC socket, a DC arc might form between one or more of the supply terminals and one or more of the prongs. The magnetic field produced by the electromagnet reduces the energy of the DC arc and reduces the time duration of the DC arc.