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公开(公告)号：US10523132B2
公开(公告)日：2019-12-31
申请号：US15529689
申请日：2015-11-12
Applicant: General Electric Technology GmbH
Inventor： Robert Whitehouse , Carl Barker
Abstract: A method and apparatus for start-up of a voltage source converter (VSC) which is connected to an energized DC link (DC+, DC−). The VSC is connected to a first AC network via a first transformer and an AC isolation switch, the AC isolation switch being coupled between the first transformer and the AC network. The method involves using an auxiliary AC power supply to generate an AC supply to energize the first transformer with the AC isolation switch open. The VSC is then started, with a VSC controller using the AC supply generated by the auxiliary AC power supply as a reference for controlling the VSC. The auxiliary AC power supply may also be used to supply power to at least one VSC load, such as the controller and/or an auxiliary load such as a cooling system. Once the VSC is started the isolation switch 204 can be closed.
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公开(公告)号：US20170074919A1
公开(公告)日：2017-03-16
申请号：US15120109
申请日：2015-02-18
Applicant: General Electric Technology GmbH
Inventor： Colin Davidson , David Reginald Trainer , Carl Barker , Oleg Bagleybter
CPC classification number: G01R31/086 , H02H7/268 , H02H9/02 , Y04S10/522
Abstract: This application relates to methods and apparatus for fault protection in a DC power transmission network or grid that aid in determining the location of a fault in the network. The method involves, in the event of a fault, controlling at least one current limiting element of the network so as to limit a fault current flowing to below a first current level which is within the expected current operating range of the network in normal operation, i.e. a safe level. The fault current is then controlled to maintain a non-zero level of fault current flow and the characteristics of the fault current flow at different parts of the network are determined by fault current detection modules. The location of the fault is then determined based on the determined characteristics.
Abstract translation: 本申请涉及用于确定网络中的故障位置的直流输电网络或电网中的故障保护的方法和装置。 该方法涉及在发生故障的情况下控制网络的至少一个限流元件，以便限制在正常操作中流动到低于网络的预期当前工作范围内的第一电流电平的故障电流， 即一个安全的水平。 然后控制故障电流以保持非零电平的故障电流，并且故障电流流量在网络的不同部分的特性由故障电流检测模块确定。 然后基于确定的特性确定故障的位置。
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公开(公告)号：US20190245346A1
公开(公告)日：2019-08-08
申请号：US16316231
申请日：2017-07-06
Applicant: General Electric Technology GmbH
Inventor： Carl Barker , Pablo Briff , Francisco Moreno , Rosemary KING
Abstract: A power transmission network includes converters interconnected via electrical elements, at least one power flow router, and a controller. Each power flow router being operatively connected to the electrical elements, each power flow router configured to selectively control current flow in the electrical elements so as to direct power between two or more of the plurality of converters. The controller configured to selectively control the converters and each power flow router to control power flow in the power transmission network The controller is configured to carry out a mathematical optimisation to determine optimal operating set points of the converters; after carrying out the mathematical optimisation, carry out another mathematical optimisation to determine optimal current flows in the electrical elements; and control the converters in accordance with each determined optimal operating set point, and control the power flow router(s) to achieve each determined optimal current flow in the electrical elements.
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公开(公告)号：US10270246B2
公开(公告)日：2019-04-23
申请号：US15558801
申请日：2016-03-11
Applicant: General Electric Technology GmbH
Inventor： Robin Gupta , Carl Barker , Andrzej Adamczyk
Abstract: A method and apparatus for controlling a voltage source converter to energize a DC link. A voltage order generating module generates a voltage order for controlling the voltage source converter to generate a DC voltage on the DC link. An oscillation damping module monitors the DC current flow to determine an indication of current oscillation and the voltage order is based on a voltage reference signal which is modulated by the indication of current oscillation to provide oscillation damping.
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公开(公告)号：US12143028B2
公开(公告)日：2024-11-12
申请号：US17794053
申请日：2021-01-26
Applicant: General Electric Technology GmbH
Inventor： Chandra Mohan Sonnathi , Rajaseker Reddy Ginnareddy , Carl Barker
Abstract: 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.
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Patent Agency Ranking
公开(公告)号：US12107419B2
公开(公告)日：2024-10-01
申请号：US17890685
申请日：2022-08-18
Applicant: General Electric Technology GmbH
Inventor： Pablo Briff , Carl Barker , Omar Jasim , Jose Augusto Monteiro
CPC classification number: H02J3/01 , H02M1/12 , H02M7/4835
Abstract: There is provided a switching valve for a voltage source converter, the switching valve including a number of modules, each module including at least one switching element and at least one energy storage device, the or each switching element and the or each energy storage device in each module arranged to be combinable to selectively provide a voltage source, the switching valve including a controller programmed to selectively control the switching of the switching elements to select one or more of the modules to contribute a or a respective voltage to a switching valve voltage.
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公开(公告)号：US10763742B2
公开(公告)日：2020-09-01
申请号：US15563342
申请日：2016-03-30
Applicant: General Electric Technology GmbH
Inventor： Robin Gupta , Carl Barker , Robert Whitehouse , Andrzej Adamczyk
Abstract: A method and apparatus for controlling a fault blocking voltage source converter apparatus which is, in use, connected to an AC system and a DC system for power transmission, in the event of a DC side interruption operating the voltage source converter apparatus after identification of a need for a DC side interruption based on a voltage order, so as to extract at least some electrical energy stored in the connected DC system to the voltage source converter apparatus.
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公开(公告)号：US10310003B2
公开(公告)日：2019-06-04
申请号：US15120109
申请日：2015-02-18
Applicant: General Electric technology GmbH
Inventor： Colin Davidson , David Reginald Trainer , Carl Barker , Oleg Bagleybter
Abstract: This application relates to methods and apparatus for fault protection in a DC power transmission network or grid that aid in determining the location of a fault in the network. The method involves, in the event of a fault, controlling at least one current limiting element of the network so as to limit a fault current flowing to below a first current level which is within the expected current operating range of the network in normal operation, i.e. a safe level. The fault current is then controlled to maintain a non-zero level of fault current flow and the characteristics of the fault current flow at different parts of the network are determined by fault current detection modules. The location of the fault is then determined based on the determined characteristics.
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公开(公告)号：US12009757B2
公开(公告)日：2024-06-11
申请号：US18053724
申请日：2022-11-08
Applicant: General Electric Technology GmbH
Inventor： Carl Barker , Andrzej Adamczyk , John Fradley
CPC classification number: H02M7/00 , H02J3/381 , H02M1/0009 , H02M7/42 , H02M7/54 , H02J2300/28
Abstract: A bipole power transmission scheme includes a first converter station that is positioned, in-use, remote from a second converter station. First and second transmission conduits and a return conduit interconnect, in-use, the first converter station with the second converter station and thereby permit the transfer of power between the first and second converter stations. The first converter station includes a first power converter, a second power converter, and a converter station controller.
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公开(公告)号：US10447028B2
公开(公告)日：2019-10-15
申请号：US15563009
申请日：2016-03-30
Applicant: General Electric Technology GmbH
Inventor： Robin Gupta , Robert Whitehouse , Carl Barker
Abstract: A converter apparatus and methods of operation thereof are disclosed. In an example, a converter unit of a bipole converter apparatus comprising a neutral connection having a breaker switch is disclosed. In the event of a DC fault, the fault condition may be monitored and it is determined whether a breaker switch operation condition is met. The breaker switch is opened when the breaker switch operation condition is met. In one example, the breaker switch operation condition may comprise a current level.
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