公开(公告)号：US20190028021A1

公开(公告)日：2019-01-24

申请号：US16081440

申请日：2017-03-01

申请人： General Electric Technology GmbH

发明人： Javier Francisco CHIVITE-ZABALZA ,  David Reginald TRAINER ,  Jonathan Christopher NICHOLLS ,  Konstantin VERSHININ ,  Ikenna Bruce EFIKA ,  Francisco Jose MORENO MUNOZ ,  John Lewis OUTRAM ,  Rajaseker Reddy GINNAREDDY

IPC分类号： H02M1/34 ,  H02J3/36 ,  H02J7/34 ,  H02M7/797

CPC分类号： H02M1/34 ,  H02J3/36 ,  H02J7/345 ,  H02M1/32 ,  H02M7/49 ,  H02M7/797 ,  H02M2001/325 ,  H02M2001/348 ,  H02M2007/4835 ,  Y02E60/60

摘要： Fault protection of a voltage source converter is provided. An apparatus has a chain-link circuit in series with a director switch. The chain-link circuit includes cells including an energy storage element and cell switching elements connected with anti-parallel diodes. Each cell switching element has a cell switching element controller. The director switch includes director switch units, each having a director switching element and a director switch unit controller. Each cell switching element controller monitors for a fault current and turns-off its associated cell switching element and reports a fault event to a fault controller. Each director switch unit controller monitors for a fault current and reports a fault event to the fault controller but the director switch unit control keeps its associated director switching element turned-on. The fault controller monitors for reports of fault events to order the cell switching elements of at least some of the cells to turn-off.

公开(公告)号：US20230318301A1

公开(公告)日：2023-10-05

申请号：US18182535

申请日：2023-03-13

申请人： General Electric Technology GmbH

发明人： Amit KUMAR ,  Andrzej ADAMCZYK ,  Omar JASIM ,  Si Huy Quoc DANG ,  Rajaseker Reddy GINNAREDDY

IPC分类号： H02J3/36 ,  H02J3/38 ,  H02J3/18

CPC分类号： H02J3/36 ,  H02J3/38 ,  H02J3/18

摘要： A bipole power transmission network includes a first upstream power converter which has a first DC terminal that is connected with a first transmission conduit which extends, in-use, to a first downstream power converter. The first upstream power converter has a second DC terminal that is connected with a return conduit which extends, in-use, to the first downstream power converter and a second downstream power converter. The first upstream power converter has at least one first AC terminal electrically connected with a first AC power source. The bipole power transmission network includes a second upstream power converter which has a third DC terminal that is connected with the return conduit, and a fourth DC terminal which is connected with a second transmission conduit that extends, in-use, to the second downstream power converter, and at least one second AC terminal electrically connected with a second AC power source.

公开(公告)号：US20230054979A1

公开(公告)日：2023-02-23

申请号：US17794053

申请日：2021-01-26

申请人： General Electric Technology GmbH

发明人： Chandra Mohan SONNATHI ,  Rajaseker Reddy GINNAREDDY ,  Carl BARKER

IPC分类号： H02M7/217 ,  H02M1/08 ,  H02M7/757 ,  H02M1/32

摘要： Embodiments of the disclosure include an electrical assembly. The electrical assembly can include a converter including a DC side and an AC side, the DC side configured for connection to a DC network, the AC side configured for connection to an AC network, the converter including at least one switching element; a circuit interruption device operably connected to the AC side of the converter; a DC voltage modification device operably connected to the DC side of the converter, the DC voltage modification device including a DC chopper; and a controller configured to selectively control the or each switching element, the circuit interruption device and the DC voltage modification device, wherein the controller is configured to be responsive to a converter internal fault by carrying out a fault operating mode.