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公开(公告)号：US11437818B2
公开(公告)日：2022-09-06
申请号：US16063168
申请日：2016-12-06
Applicant: General Electric Technology GmbH
Inventor： Colin Charnock Davidson
IPC: H02M7/538 , H02J3/36 , H02J3/00 , H02M7/5387 , H02M7/757
Abstract: There is provided a power supply apparatus for supplying power to an external electrical load, including a power transmission line or cable through which an alternating or direct current may flow, a power supply module, a control unit, an output terminal for connection to the external electrical load, and a converter. The power supply module includes an input terminal connected to the power transmission line or cable, and includes switching elements and energy storage device(s). The control unit controls the switching elements to selectively switch each energy storage device into circuit to direct a current flowing in the power transmission line or cable to flow through each energy storage device so as to store energy to form a power source. The converter draws power from the power source and supplies the drawn power to the output terminal.
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公开(公告)号：US11387060B2
公开(公告)日：2022-07-12
申请号：US16470043
申请日：2017-12-11
Applicant: General Electric Technology GmbH
Inventor： Colin Charnock Davidson
Abstract: A switching apparatus comprises a plurality of current-conductive branches connected in parallel between first and second terminals, each current-conductive branch including at least one respective electrical connection member in series connection with at least one respective gas tube switch between the first and second terminals, wherein the inductance value of each electrical connection member is configured to balance the inductance values of the current-conductive branches.
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公开(公告)号：US11233464B2
公开(公告)日：2022-01-25
申请号：US17042121
申请日：2019-03-07
Applicant: GENERAL ELECTRIC TECHNOLOGY GMBH
Inventor： Colin Charnock Davidson , Francisco Javier Chivite Zabalza , John Lewis Outram , Jerome Gregoire , Stefan Schroeder
IPC: H02M7/5388 , H02M7/483
Abstract: This application relates to a cell (1200) or sub-module for a voltage source converter (1201). The cell includes an energy storage apparatus (101; 101a, 101b) and a plurality of dual-switch semiconductor packages (201), each having first and second semiconductor switches (202, 203) connected in series. The cell is operable in an active state in which an energy storage apparatus (101; 101a, 101b) is electrically connected in series between cell terminals (102a, 102b) and a bypass state in the cell terminals (102a, 102b) are electrically connected via a path that bypasses the first energy storage apparatus. The plurality of dual-switch semiconductor switch packages are configured to provide a first set of semiconductor switches (301; 401) connected between nodes of the cell that are electrically connected in the first active state and electrically disconnected in the first bypass state; and a second set of semiconductor switches (302a, 302b; 402a, 402b) is connected between nodes of the cell that are electrically disconnected in the first active state and electrically connected in the bypass state. The second set of switches comprises a greater number of switches in parallel than the first set of switches.
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公开(公告)号：US11177099B2
公开(公告)日：2021-11-16
申请号：US16963703
申请日：2019-01-31
Applicant: GENERAL ELECTRIC TECHNOLOGY GMBH
Inventor： Colin Charnock Davidson
Abstract: A switching apparatus comprises: a first current-conductive branch (12) including a first switching element (24), the first switching element (24) configured to be switchable to selectively permit and block a flow of current in the first current-conductive branch (12); a second current-conductive branch (14) including a second switching element (32), the second switching element (32) configured to be switchable to selectively permit and block a flow of current in the second current-conductive branch (14); and first and second terminals (18,20) for connection, in use, to an electrical network (22), wherein the first and second current-conductive branches (12,14) extend between the first and second terminals (18,20), wherein the first current-conductive branch (12) further includes an energy storage element electrically coupled to the second switching element (32) so that the energy storage element is configured as a power source for enabling the operation of the second switching element (32), and the first switching element (24) is configured to be switchable to selectively direct a current flowing in the first current-conductive branch (12) to flow through the energy storage element so as to store energy in the energy storage element.
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公开(公告)号：US10177643B2
公开(公告)日：2019-01-08
申请号：US15532511
申请日：2015-12-03
Applicant: General Electric Technology GmbH
Inventor： Colin Charnock Davidson
Abstract: A semiconductor switching circuit, for use in a HVDC power converter, comprising: a main semiconductor switching element, including first and second connection terminals between which current flows from the first connection terminal to the second connection terminal and an auxiliary semiconductor switching element electrically connected between the first and second connection terminals thereof, and a control unit, operatively connected to auxiliary semiconductor switching element and programmed to control the switching element to create an alternative current path between the first and second connection terminals by at least two of: a fully-on mode in which the switching element is operated at its maximum rated base current or gate voltage; a pulsed switched mode in which the switching element is turned on and off; and an active mode in which the switching element is operated with a continuously variable base current or gate voltage.
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Patent Agency Ranking
公开(公告)号：US11165420B2
公开(公告)日：2021-11-02
申请号：US16617237
申请日：2018-06-01
Applicant: GENERAL ELECTRIC TECHNOLOGY GMBH
Inventor： Colin Charnock Davidson
Abstract: There is provided a switching apparatus (30,130) comprising: first and second nodes (32,34) operably connectable to a line voltage (44); first and second switching branches (38,40) connected in parallel between the first and second nodes (32,34), the first switching branch (38) including at least one first switching element (46,60); and the second switching branch (40) including a pair of switching assemblies connected in series between the first and second nodes (32,34), the second switching branch (40) further including a junction (48) between the pair of switching assemblies, each switching assembly including at least one second switching element (50), at least one of the switching assemblies further including at least one impedance element (52), wherein the switching apparatus (30,130) further includes a shunt impedance (42) and a third node (36), the shunt impedance (42) arranged to form a permanent electrical connection between the junction (48) and the third node (36), the third node (36) operably connectable to a voltage that is different in magnitude to the line voltage (44), the or each impedance element (52) arranged in the corresponding switching assembly to combine with the shunt impedance (36) so as to define a current path which extends between the corresponding first or second node (32,34) and the third node (36).
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公开(公告)号：US10833667B2
公开(公告)日：2020-11-10
申请号：US16486691
申请日：2018-02-08
Applicant: GENERAL ELECTRIC TECHNOLOGY GMBH
Inventor： Colin Charnock Davidson
Abstract: In the field of gate drivers for switching devices with a gate terminal via which the switching device can be turned on and off, a switching stage (10; 90) comprises first and second input terminals (12, 14) that are connectable in use with corresponding positive and negative terminals (16, 18) of a regulated voltage source (20). The switching stage (10; 80; 90) also includes an output terminal (34) which is connectable in use with a gate terminal (36) of a switching device (28). In addition the switching stage (10; 80; 90) includes a secondary energy storage device (38) that is electrically connected with the first and second input terminals (12, 14) to in use receive and store energy via the regulated voltage source (20). The switching stage (10; 90) in use selectively provides a first switching path (50) between the regulated voltage source (20) and the output terminal (34) to apply a voltage at a first polarity to the gate terminal (36), and a second switching path (52) between the secondary energy storage device (38) and the output terminal (34) to apply a voltage at a second polarity opposite the first polarity to the gate terminal (36).
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公开(公告)号：US12100960B2
公开(公告)日：2024-09-24
申请号：US17430271
申请日：2020-02-05
Applicant: General Electric Technology GmbH
Inventor： Colin Charnock Davidson , Andrew Nolan , Alistair John Burnett
CPC classification number: H02J3/36 , H02H1/0015 , H02H7/10 , H02M1/32 , H02M7/003 , H02M7/4835 , H02M7/5387
Abstract: An electrical assembly comprises a plurality of modules (36), each module (36) including at least one switching element (38) and at least one energy storage device (40), the or each switching element (38) and the or each energy storage device (40) in each module (36) arranged to be combinable to selectively provide a voltage source, wherein each module (36) includes a respective sensor (46) that is configured to monitor at least one other of the plurality of modules (36), each sensor (46) configured to selectively detect an occurrence of an operational hazard in the or each corresponding monitored module (36).
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公开(公告)号：US11777307B2
公开(公告)日：2023-10-03
申请号：US17270369
申请日：2019-08-14
Applicant: General Electric Technology GmbH
Inventor： Carl D. Barker , Colin Charnock Davidson , John Lewis Outram , Timothy James Stott , Robert Stephen Whitehouse
Abstract: An electronic valve apparatus for a high voltage direct current, HVDC, power transmission system. The electronic valve apparatus includes a first device chain including a number of first devices connected in series between an input node and an output node. Each of the first devices has an asymmetric transfer function configured substantially to block current flow through the device in a first direction, and the first devices are connected such that they all block current flow in the same direction. The electronic valve apparatus also includes a second device chain including a number of second devices connected in series between the input node and the output node. Each of the second devices has an asymmetric transfer function configured substantially to block current flow through the device in a first direction, and the second devices are connected such that they all block current flow in the same direction.
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公开(公告)号：US11146043B2
公开(公告)日：2021-10-12
申请号：US16469917
申请日：2017-12-11
Applicant: General Electric Technology GmbH
Inventor： Colin Charnock Davidson
Abstract: A switching apparatus comprises: a plurality of parallel-connected current-conductive branches, each current-conductive branch including at least one respective gas tube switch; and a switching control unit configured to control the turn-on of the gas tube switches in a switching order so that the flow of current in the switching apparatus is controlled to switch between the current-conductive branches, wherein the switching order of the turn-on of the gas tube switches is arranged so that only one of the current-conductive branches is carrying the current during each turn-on cycle of the switching apparatus.
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