公开(公告)号：WO2022028720A1

公开(公告)日：2022-02-10

申请号：PCT/EP2020/072321

申请日：2020-08-07

Applicant: HITACHI ENERGY SWITZERLAND AG

Inventor： MAJUMDER, Ritwik

IPC: H02J3/00 ,  H02J3/02 ,  H02J4/00 ,  H02J3/36 ,  H02J3/0073

Abstract: A power distribution arrangement (100) for distributing AC power to a plurality of loads requiring AC power is disclosed. The power distribution arrangement comprises a power distribution substation (10) comprising a plurality of transformers (11, 12), each of the transformers being selectively and controllably connectable to at least one power source providing AC power. The power distribution arrangement comprises a plurality of switches (1-6, 60-68), a plurality of buses (13-15), and a plurality of feeders (41-47). Each of the feeders (41-47) is selectively and controllably connectable to at least one of the loads and to at least one of the transformers, respectively, via one or more of the buses, by means of at least some of the switches. The power distribution arrangement comprises a DC transmission line (70), which at one end is selectively and controllably connectable to the respective ones of the feeders via at least one bus (15), by means of at least one of the switches, and at another end thereof is connected or connectable to another power distribution substation (95). The power distribution arrangement comprises at least one control unit (90, 96) configured to control any power transfer via the DC transmission line from the other power distribution substation to the at least one bus. The at least one control unit is configured to control operation of the switches in order to selectively connect or disconnect one or more of the feeders to or from at least one of the transformers via one or more of the buses and to selectively connect or disconnect the DC transmission line to or from one or more of the feeders via the at least one bus, whereby AC power is distributed to the loads via the feeders. The at least one control unit is configured to control the operation of the switches based on: loading in and a power transfer rating of the respective ones of the feeders, loading in and a power transfer rating of the respective ones of the transformers, and any power transfer via the DC transmission line from the other power distribution substation to the at least one bus.

公开(公告)号：WO2021144103A1

公开(公告)日：2021-07-22

申请号：PCT/EP2020/086201

申请日：2020-12-15

Applicant: SMA SOLAR TECHNOLOGY AG

Inventor： ALLERT, Claus

IPC: H02J3/00 ,  H02J9/06 ,  H02J3/007 ,  H02J3/0073 ,  H02J9/062 ,  H02J9/063

Abstract: Eine Umschaltvorrichtung (1) zur wahlweisen Versorgung mindestens einer Last (3) aus einem Netz (4) oder einem bidirektionalen Wechselrichter (2) umfasst einen Eingang mit einem Netz-Neutralleiteranschluss (5) und einem Netz- Außenleiteranschluss (6) zum Anschluss an das Netz (4), einen ersten Ausgang mit einem Wechselrichter-Neutralleiteranschluss (7) und einem Wechselrichter- Außenleiteranschluss (8) zum Anschluss des bidirektionalen Wechselrichters (2), einen zweiten Ausgang mit einem Last-Neutralleiteranschluss (9) und einem Last- Außenleiteranschluss (10) zum Anschluss der Last (3) und ein Schaltorgan (11), dessen Ansteuerung mit einem Ansteuerungseingang (18) der Umschaltvorrichtung (1) verbunden ist. Das Schaltorgan (11) umfasst einen ersten und einen zweiten normal-geschlossenen Kontakt und einen normal-geöffneten Kontakt, die in einer Verschaltung mit dem Netz-Außenleiteranschluss (6), dem Wechselrichter- Außenleiteranschluss (8) und dem Last-Außenleiteranschluss (10) verbunden sind. Ein zugehöriges Verfahren ist ebenfalls offenbart.

公开(公告)号：WO2022140025A2

公开(公告)日：2022-06-30

申请号：PCT/US2021/061342

申请日：2021-12-01

Applicant: AMERICAN SUPERCONDUCTOR CORPORATION

Inventor： ULLIMAN, John M. ,  MACDONALD, Timothy ,  CALLIS, Stephen

IPC: H02J3/00 ,  H02J3/38 ,  B63J3/02 ,  B60L1/00 ,  B60L2200/32 ,  B60L2270/147 ,  B60L50/13 ,  B63H2021/173 ,  B63H21/17 ,  H02J2310/42 ,  H02J3/0073 ,  H02K55/04

Abstract: An electrical power system for a watercraft including a first electrical power plant configured to operate in a variable frequency mode to output variable frequency power to a first electrical network and a fixed frequency mode to output fixed frequency power to a second electrical network. There is a first electrical load including a first high temperature superconductor (HTS) motor connected to the first electrical network and a second electrical load connected to a second electrical network. A controller selectively connects the first electrical power plant to the first electrical network and operates the first electrical power plant in a variable frequency mode to output variable frequency power to power the first HTS motor and selectively connects the first electrical power plant to the second electrical network and operates the first electrical power plant in a fixed frequency mode to output fixed frequency power to power the second electrical load.

公开(公告)号：WO2021150828A1

公开(公告)日：2021-07-29

申请号：PCT/US2021/014523

申请日：2021-01-22

Applicant: CUMMINS POWER GENERATION INC.

Inventor： AUFDERHAR, Kevin J. ,  DAHLEN, Paul R. ,  MCDONALD, Dennis G.

IPC: H02J3/00 ,  H02J3/14 ,  H02J3/42 ,  H02J13/00 ,  H02J13/00016 ,  H02J2203/10 ,  H02J2310/58 ,  H02J3/00125 ,  H02J3/007 ,  H02J3/0073 ,  H02J3/144

Abstract: Systems and apparatuses include a non-transitory computer readable media having computer-executable instructions embodied therein that, when executed by a circuit of a power system, causes the power system (74) to perform functions to activate and deactivate routes. The functions include determining a plurality of source objects (78), each including source functions and being assigned a position on a one-line topology; determining one or more switch objects (86), each including switch functions and being assigned a position on the one-line topology; determining one or more bus objects (82), each including bus functions and being assigned a position on the one-line topology; determining one or more load objects (90), each including load functions and being assigned a position on the one-line topology; and allocating each object to one of a plurality of controllers, each of the controllers structured to cooperatively perform the source functions, the switch functions, the bus functions, and the load functions to provide operation of the system.

公开(公告)号：WO2022106900A2

公开(公告)日：2022-05-27

申请号：PCT/IB2021/000809

申请日：2021-11-18

Applicant: ABB SCHWEIZ AG

Inventor： BOSE, Veerakumar ,  KENDZIA, III Thomas ,  BELCASTRO, Christopher, Alan

IPC: H02J9/06 ,  G06F1/28 ,  G06F1/263 ,  H02J3/007 ,  H02J3/0073 ,  H02J9/062 ,  H02J9/068 ,  H03K17/0403 ,  H03K17/06 ,  H03K17/136 ,  H03K17/72 ,  H03K17/725 ,  H03K2017/066

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：WO2021150820A1

公开(公告)日：2021-07-29

申请号：PCT/US2021/014513

申请日：2021-01-22

Applicant: CUMMINS POWER GENERATION INC.

Inventor： AUFDERHAR, Kevin J. ,  DAHLEN, Paul R. ,  MCDONALD, Dennis G.

IPC: H02J3/00 ,  H02J13/00 ,  H02J13/00004 ,  H02J13/00036 ,  H02J2203/10 ,  H02J3/0073 ,  H02P9/02

Abstract: Systems and apparatuses include a circuit structured to: identify a first source object, a second source object, and a load bus object; determine locations of the first source object, the second source object, and the load bus object on a one-line topology; receive operational parameters of the first source object, the second source object, and the load bus object; define, using the one-line topology, a first route including objects electrically connected between the first source object and the load bus object; define, using the one-line topology, a second route including all objects electrically connected between the second source object and the load bus object; and control operation of the first route and the second route.

公开(公告)号：WO2021126425A1

公开(公告)日：2021-06-24

申请号：PCT/US2020/060316

申请日：2020-11-13

Applicant: MICROSOFT TECHNOLOGY LICENSING, LLC

Inventor： SEATON, Scott Thomas ,  CARVER, Ryan Douglas ,  MORALES, Osvaldo P. ,  KRUEGER, Keith Allen ,  KUNNATH, Lalu Vannankandy ,  WANGIA, Peter Odongo ,  REDDING, Kris Sean ,  BEAL, Eric Matthew ,  DELAPAZ, Jose Seah ,  SOLOMON, Steve Todd

IPC: H02J1/08 ,  H02J3/00 ,  H02J9/06 ,  G06F1/189 ,  H02J1/086 ,  H02J3/0073 ,  H05K7/1492 ,  H05K7/1497

Abstract: A design for the electrical infrastructure of a data center enables two different configurations to be utilized, including a distributed, redundant configuration that provides higher reliability and a non-redundant configuration that provides higher capacity. In the distributed, redundant configuration, each server in the data center draws power from at least two different power supply systems. This enables load shifting when a power supply system becomes unavailable, which can have the effect of increasing server reliability. In the non-redundant configuration, each server in the data center draws power from only one power supply system. Load shifting is not utilized in the non-redundant configuration, which eliminates the need to maintain reserve capacity and thereby increases capacity. Advantageously, it is possible to switch between these two configurations without making any internal changes to the data center other than modifying connections between sets of server racks and power buses.