公开(公告)号：US11031773B2

公开(公告)日：2021-06-08

申请号：US16366280

申请日：2019-03-27

Applicant: ABB Schweiz AG

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

IPC: H02H7/00 ,  H02H7/26

Abstract: Unique systems, methods, techniques and apparatuses of a distribution system are disclosed. One exemplary embodiment is an alternating current (AC) distribution system including a first substation including a first transformer and a protective device; a first distribution network portion coupled to the first transformer; a second substation; a second distribution network portion; a DC interconnection system coupled between the first distribution network portion and the second distribution network portion; and a control system. The control system is structured to detect a fault in the first transformer or the transmission network, isolate the first distribution network from the fault, determine a set point of the DC interconnection system, and operate the DC interconnection system using the set point so as to transfer a portion of the MVAC from the second distribution network portion to the first distribution network portion.

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.