公开(公告)号：WO2012123014A2

公开(公告)日：2012-09-20

申请号：PCT/EP2011053738

申请日：2011-03-11

Applicant: ABB TECHNOLOGY AG ,  BERGGREN BERTIL ,  HAEFNER JURGEN ,  JUHLIN LARS-ERIK ,  LINDEN KERSTIN ,  ZHANG LIDONG

Inventor： BERGGREN BERTIL ,  HAEFNER JURGEN ,  JUHLIN LARS-ERIK ,  LINDEN KERSTIN ,  ZHANG LIDONG

CPC classification number: H02H3/08 ,  H02H3/02 ,  H02H3/20 ,  H02H7/268

Abstract: A current-limitation system for limiting a current through an DC connection in case of a fault occurring in a DC grid of which the DC connection forms a part is provided, as well as a method of operating a current-limitation system for limiting a current through an DC connection in case of a fault occurring in a DC grid of which the DC connection forms a part.

Abstract translation: 提供了一种电流限制系统，用于限制在直流连接形成一部分的直流电网中发生故障的情况下通过直流连接的电流，以及一种操作电流限制系统以限制电流的方法 通过DC连接，在DC连接形成部件的直流电网中发生故障的情况下。

公开(公告)号：CA2798651C

公开(公告)日：2016-05-10

申请号：CA2798651

申请日：2010-05-11

Applicant: ABB TECHNOLOGY AG

Inventor： ASPLUND GUNNAR ,  HAEFNER JURGEN

IPC: H02J3/36 ,  H02B1/20

Abstract: A high voltage DC switchyard (40) comprises at least one busbar (41, 42), at least two DC lines (43-46) connected to said at least one busbar through DC breakers (50-55) comprising a section of at least one semiconductor device (48) of turn-off type and rectifying member (49) in anti-parallel therewith. At least one said DC line is connected to at least one said busbar through a unidirectional said DC breaker (50, 52, 53, 55), i.e. a DC breaker that may only block current therethrough in one direction.

公开(公告)号：CA2798650C

公开(公告)日：2016-05-03

申请号：CA2798650

申请日：2010-05-11

Applicant: ABB TECHNOLOGY AG

Inventor： HAEFNER JURGEN ,  JACOBSON BJOERN

IPC: H02J3/36 ,  H02H3/20

Abstract: A plant for transmitting electric power comprises a high voltage DC line (4-7), a DC breaker (8-13) connected in series with the DC line and configured to break a fault current upon occurrence of a fault on said DC line, means (21) configured to detect occurrence of a fault current, a control unit (22) configured to control a said DC breaker for protecting equipment connected to the DC line upon occurrence of a said fault current and means configured to dissipate energy stored in a faulty current path of the DC line between said location (23) and these means upon occurrence of a said fault to the moment of said control of said DC breaker. The energy dissipating means comprises a series connection of an energy consuming braking resistor (28) and a free-wheeling rectifying member (29) connected between ground and said DC line to conduct current while forming a free-wheeling path therethrough upon said control of said DC breaker upon occurrence of a said fault.

公开(公告)号：CA2798651A1

公开(公告)日：2011-11-17

申请号：CA2798651

申请日：2010-05-11

Applicant: ABB TECHNOLOGY AG

Inventor： ASPLUND GUNNAR ,  HAEFNER JURGEN

IPC: H02J3/36 ,  H02B1/20

Abstract: A high voltage DC switchyard (40) comprises at least one busbar (41, 42), at least two DC lines (43-46) connected to said at least one busbar through DC breakers (50-55) comprising a section of at least one semiconductor device (48) of turn-off type and rectifying member (49) in anti-parallel therewith. At least one said DC line is connected to at least one said busbar through a unidirectional said DC breaker (50, 52, 53, 55), i.e. a DC breaker that may only block current therethrough in one direction.

公开(公告)号：CA2798650A1

公开(公告)日：2011-11-17

申请号：CA2798650

申请日：2010-05-11

Applicant: ABB TECHNOLOGY AG

Inventor： HAEFNER JURGEN ,  JACOBSON BJOERN

IPC: H02J3/36 ,  H02H3/20

Abstract: A plant for transmitting electric power comprises a high voltage DC line (4-7), a DC breaker (8-13) connected in series with the DC line and configured to break a fault current upon occurrence of a fault on said DC line, means (21) configured to detect occurrence of a fault current, a control unit (22) configured to control a said DC breaker for protecting equipment connected to the DC line upon occurrence of a said fault current and means configured to dissipate energy stored in a faulty current path of the DC line between said location (23) and these means upon occurrence of a said fault to the moment of said control of said DC breaker. The energy dissipating means comprises a series connection of an energy consuming braking resistor (28) and a free-wheeling rectifying member (29) connected between ground and said DC line to conduct current while forming a free-wheeling path therethrough upon said control of said DC breaker upon occurrence of a said fault.