公开(公告)号：US11811219B2

公开(公告)日：2023-11-07

申请号：US17753155

申请日：2019-08-28

Applicant: ABB Schweiz AG

Inventor： Ritwik Majumder ,  Bertil Berggren ,  David Schaeffer ,  Lidong Zhang ,  Frans Dijkhuizen

IPC: H02J3/36 ,  H02H7/26 ,  H02J3/00

CPC classification number: H02H7/268 ,  H02J3/0073 ,  H02J3/36

Abstract: A method for restoration of a fault isolation in a medium voltage, MV, network having a plurality of feeders and a plurality of normally open, NO, switches possibly in parallel with MV direct current, DC, links is presented. The method is performed in a control device of the MV network. The method includes closing at least two NO switches in parallel with MVDC links of the plurality of NO switches, being connected to a fault isolated feeder of the plurality of feeders of the MV network, and opening the closed at least two NO switches in parallel with MVDC links except one. A control device, a computer program and a computer program product for restoration of a fault isolation in a MV network are also presented.

公开(公告)号：US10819112B1

公开(公告)日：2020-10-27

申请号：US16366118

申请日：2019-03-27

Applicant: ABB Schweiz AG

Inventor： Jiuping Pan ,  Chunming Yuan ,  Xiaobo Yang ,  Ritwik Majumder ,  Bertil Berggren ,  Frans Dijkhuizen ,  David Schaeffer

IPC: H02J3/00 ,  H02J3/36 ,  H02J3/06

Abstract: Systems, methods, techniques and apparatuses of feeder line fault response are disclosed. One exemplary embodiment is a method for operating an alternating current (AC) distribution network including a first feeder line, a second feeder line, and a third feeder line. The method includes isolating a faulted portion of the first feeder line from a healthy portion of the first feeder line; closing a tie switch coupled between the healthy portion and the second feeder line in response to isolating the faulted portion from the healthy portion; determining the second feeder line is experiencing an overload condition after closing the tie switch; and transferring AC power including transferring AC power using a direct current (DC) interconnection system coupled to the third feeder line effective to remove the overload condition from the second feeder line.

公开(公告)号：US20240170950A1

公开(公告)日：2024-05-23

申请号：US18504945

申请日：2023-11-08

Applicant: ABB Schweiz AG

Inventor： David Schaeffer ,  Kalle Huju ,  Manfred Sievers ,  Elisabeth Lindell ,  Simo Poyhonen ,  Jesper Magnusson ,  Marley Becerra

IPC: H02H7/26 ,  H01H33/59

CPC classification number: H02H7/268 ,  H01H33/596

Abstract: A drive system including: a DC bus, a plurality of power electronics devices, each including a capacitor, each power electronics device being connected to the DC bus in parallel with the other power electronics devices, and a plurality of arc suppressing devices, each being configured to short circuit the DC bus in case of an arcing fault on the DC bus.

公开(公告)号：US20220337051A1

公开(公告)日：2022-10-20

申请号：US17753155

申请日：2019-08-28

Applicant: ABB Schweiz AG

Inventor： Ritwik Majumder ,  Bertil Berggren ,  David Schaeffer ,  Lidong Zhang ,  Frans Dijkhuizen

IPC: H02H7/26

Abstract: A method for restoration of a fault isolation in a medium voltage, MV, network having a plurality of feeders and a plurality of normally open, NO, switches possibly in parallel with MV direct current, DC, links is presented. The method is performed in a control device of the MV network. The method includes closing at least two NO switches in parallel with MVDC links of the plurality of NO switches, being connected to a fault isolated feeder of the plurality of feeders of the MV network, and opening the closed at least two NO switches in parallel with MVDC links except one. A control device, a computer program and a computer program product for restoration of a fault isolation in a MV network are also presented.

公开(公告)号：US20200343727A1

公开(公告)日：2020-10-29

申请号：US16366118

申请日：2019-03-27

Applicant: ABB Schweiz AG

Inventor： Jiuping Pan ,  Chunming Yuan ,  Xiaobo Yang ,  Ritwik Majumder ,  Bertil Berggren ,  Frans Dijkhuizen ,  David Schaeffer

IPC: H02J3/36 ,  H02J9/06

Abstract: Systems, methods, techniques and apparatuses of feeder line fault response are disclosed. One exemplary embodiment is a method for operating an alternating current (AC) distribution network including a first feeder line, a second feeder line, and a third feeder line. The method includes isolating a faulted portion of the first feeder line from a healthy portion of the first feeder line; closing a tie switch coupled between the healthy portion and the second feeder line in response to isolating the faulted portion from the healthy portion; determining the second feeder line is experiencing an overload condition after closing the tie switch; and transferring AC power including transferring AC power using a direct current (DC) interconnection system coupled to the third feeder line effective to remove the overload condition from the second feeder line.