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公开(公告)号：US09780557B2
公开(公告)日：2017-10-03
申请号：US14653683
申请日：2013-11-13
Applicant: ALSTOM Technology Ltd
Inventor： Colin Charnock Davidson , Robert Whitehouse
CPC classification number: H02H9/02 , H02M7/483 , H02M2007/4835
Abstract: An electrical apparatus (10) comprises: first and second terminals (18,20) for connection to an electrical circuit; a chain-link converter (22) connected between the first and second terminals (18,20), the chain-link converter (22) including a plurality of chain-link modules (24), each chain-link module (24) including at least one switching element (26) and at least one energy storage device (28), the or each switching element (26) and the or each energy storage device (28) of each chain-link module (24) combining to selectively provide a voltage source; and a protection device (32) connected across an electrical block (34) that includes at least two of the plurality of chain-link modules (24), the protection device (32) including a plurality of series-connected semiconductor devices (36), wherein the protection device (32) selectively provides a current-conductive path to allow at least part of a current flowing in the electrical apparatus (10) to bypass the electrical block (34).
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公开(公告)号：US09306384B2
公开(公告)日：2016-04-05
申请号：US14382532
申请日：2013-02-26
Applicant: ALSTOM Technology Ltd
Inventor： Robert Whitehouse , Carl David Barker
Abstract: There is a method of fault clearance for a DC power grid (10), wherein the DC power grid (10) includes: a plurality of DC terminals (12a,12b,12c,12d); a plurality of DC power transmission media (14a,14b, 14c,14d) to interconnect the plurality of DC terminals (12a, 12b, 12c, 12d); and a plurality of DC circuit interruption device stations (18), each DC circuit interruption device station (18) being associated with a respective one of the plurality of DC power transmission media (14a,14b, 14c, 14d) and a respective one of the plurality of DC terminals (12a, 12b,12c, 12d), each DC circuit interruption device station (18) including a DC circuit interruption device (20) to selectively interrupt current flow in the associated DC power transmission medium (14a, 14b, 14c, 14d), the method comprising the steps of: (i) detecting one or more faults occurring in the plurality of DC power transmission media (14a, 14b, 14c,14d); (ii) after detecting the or each fault, opening all of the DC circuit interruption devices (20) to interrupt current flow in the plurality of DC power transmission media (14a,14b, 14c,14d); (iii) measuring electrical characteristics of each DC power transmission medium (14a, 14b, 14c,14d); (iv) identifying the or each faulty DC power transmission medium (14a, 14b, 14c, 14d), in which the or each fault is located, based on the measured electrical characteristics of the plurality of DC power transmission media (14a, 14b, 14c, 14d); and (v) after identifying the or each faulty DC power transmission medium (14a, 14b, 14c, 14d) in which the or each fault is located, inhibiting closing of the or each DC circuit interruption device (20) that is associated with the or each faulty DC power transmission medium (14a,14b, 14c,14d), in which the or each fault is located, and closing the or each DC circuit interruption device (20) that is associated with the or each non-faulty DC power transmission medium (14a, 14b, 14c, 14d), in which the or each fault is not located.
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Patent Agency Ranking
公开(公告)号：US20150116876A1
公开(公告)日：2015-04-30
申请号：US14382532
申请日：2013-02-26
Applicant: ALSTOM TECHNOLOGY LTD.
Inventor： Robert Whitehouse , Carl David Barker
IPC: H02H7/26
Abstract: There is a method of fault clearance for a DC power grid (10), wherein the DC power grid (10) includes: a plurality of DC terminals (12a,12b,12c,12d); a plurality of DC power transmission media (14a,14b, 14c,14d) to interconnect the plurality of DC terminals (12a, 12b, 12c, 12d); and a plurality of DC circuit interruption device stations (18), each DC circuit interruption device station (18) being associated with a respective one of the plurality of DC power transmission media (14a,14b, 14c, 14d) and a respective one of the plurality of DC terminals (12a, 12b,12c, 12d), each DC circuit interruption device station (18) including a DC circuit interruption device (20) to selectively interrupt current flow in the associated DC power transmission medium (14a, 14b, 14c, 14d), the method comprising the steps of: (i) detecting one or more faults occurring in the plurality of DC power transmission media (14a, 14b, 14c,14d); (ii) after detecting the or each fault, opening all of the DC circuit interruption devices (20) to interrupt current flow in the plurality of DC power transmission media (14a,14b, 14c,14d); (iii) measuring electrical characteristics of each DC power transmission medium (14a, 14b, 14c,14d); (iv) identifying the or each faulty DC power transmission medium (14a, 14b, 14c, 14d), in which the or each fault is located, based on the measured electrical characteristics of the plurality of DC power transmission media (14a, 14b, 14c, 14d); and (v) after identifying the or each faulty DC power transmission medium (14a, 14b, 14c, 14d) in which the or each fault is located, inhibiting closing of the or each DC circuit interruption device (20) that is associated with the or each faulty DC power transmission medium (14a,14b, 14c,14d), in which the or each fault is located, and closing the or each DC circuit interruption device (20) that is associated with the or each non-faulty DC power transmission medium (14a, 14b, 14c, 14d), in which the or each fault is not located.
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公开(公告)号：US09859705B2
公开(公告)日：2018-01-02
申请号：US14404273
申请日：2013-05-31
Applicant: ALSTOM Technology Ltd
Inventor： Robert Whitehouse , Carl David Barker
CPC classification number: H02J1/00 , H02J1/14 , H02J3/36 , H02J2001/106 , Y02E60/60 , Y10T307/352
Abstract: A current flow controller (10) comprising: a plurality of terminals (12a, 12b, 14a, 14b) for connection, in use, to a plurality of DC power transmission medium (16,18) such that each DC power transmission medium (16,18) is connected to at least one of the plurality of terminals (12a, 12b, 14a, 14b); and a current flow control unit interconnecting the plurality of terminals (12a, 12b, 14a, 14b), the current flow control unit including a plurality of current flow control sub-units (20, 22, 23) each of which is, in use, connected to a respective DC power transmission medium (16, 18), each current flow control sub-unit (20, 22, 23) including at least one switching element (24, 28), the or each switching element (24, 28) of each current flow control sub-unit (20, 22, 23) being connected to the same energy storage device (26; 56) to selectively provide a voltage source, and a switching control unit (100) to control switching of each switching element (24, 28) of the current flow control unit to selectively inject a voltage drop (V1, V2), in use, into each DC power transmission medium (16,18) so as to simultaneously regulate current flow (I1, I2) in each DC power transmission medium (16, 18) and divert energy from at least one DC power transmission medium (16, 18) into at least one other DC power transmission medium (16, 18) via the current flow control unit.
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公开(公告)号：US20150349520A1
公开(公告)日：2015-12-03
申请号：US14653683
申请日：2013-11-13
Applicant: ALSTOM TECHNOLOGY LTD
Inventor： Colin Charnock Davidson , Robert Whitehouse
IPC: H02H9/02
CPC classification number: H02H9/02 , H02M7/483 , H02M2007/4835
Abstract: An electrical apparatus (10) comprises: first and second terminals (18,20) for connection to an electrical circuit; a chain-link converter (22) connected between the first and second terminals (18,20), the chain-link converter (22) including a plurality of chain-link modules (24), each chain-link module (24) inluding at least one switching element (26) and at least one energy storage device (28), the or each switching element (26) and the or each energy storage device (28) of each chain-link module (24) combining to selectively provide a voltage source; and a protection device (32) connected across an electrical block (34) that includes at least two of the plurality of chain-link modules (24), the protection device (32) including a plurality of series-connected semiconductor devices (36), wherein the protection device (32) selectively provides a current-conductive path to allow at least part of a current flowing in the electrical apparatus (10) to bypass the electrical block (34).
Abstract translation: 电气设备（10）包括：用于连接到电路的第一和第二端子（18,20） 链节转换器（22），连接在第一和第二端子（18,20）之间，链节转换器（22）包括多个链节模块（24），每个链节模块（24）包括 每个链节模块（24）的至少一个开关元件（26）和至少一个能量存储装置（28），所述或每个开关元件（26）和每个能量存储装置（28）组合以选择性地提供 电压源; 以及跨越包括所述多个链节模块（24）中的至少两个的电块（34）连接的保护装置（32），所述保护装置（32）包括多个串联连接的半导体装置（36） ，其中所述保护装置（32）选择性地提供导电路径以允许在所述电气设备（10）中流动的电流的至少一部分绕过所述电气块（34）。
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公开(公告)号：US20150372474A1
公开(公告)日：2015-12-24
申请号：US14767398
申请日：2013-11-20
Applicant: ALSTOM TECHNOLOGY LTD
Inventor： Colin Charnock Davidson , Robert Whitehouse
IPC: H02H3/087
Abstract: A circuit interruption device includes a main branch; a secondary branch having an electrical on-resistance which is higher than an electrical on-resistance of the main branch; and first and second terminals for connection to an electrical network, the main and secondary branches extending between the first and second terminals. The main branch includes a switching apparatus which is switchable to selectively allow current to flow in the main branch in a normal mode of operation or commutate current from the main branch to the secondary branch in a fault mode of operation. The secondary branch includes a switching device, the switching device including a normally-on switching element. The secondary branch further includes a control unit in communication with the normally-on switching element. The secondary branch further includes a power extraction circuit which is electrically coupled with the control unit. During the normal mode of operation the normally-on switching element is in an on-state to permit the secondary branch to conduct current, and during the fault mode of operation the control unit controls the switching of the or each normally-on switching element to an off-state to inhibit current flow in the secondary branch.
Abstract translation: 电路中断装置包括主分支; 具有比主分支的导通电阻高的导通电阻的次级分支; 以及用于连接到电网的第一和第二终端，所述主分支和第二分支在第一和第二终端之间延伸。 主分支包括切换装置，其可切换以选择性地允许电流在正常操作模式或主要分支到次级分支的故障操作模式中流过主分支。 次级分支包括开关装置，开关装置包括常开开关元件。 辅分支还包括与常开开关元件连通的控制单元。 次级分支还包括与控制单元电耦合的功率提取电路。 在正常操作模式期间，常开开关元件处于导通状态以允许次级分支导通电流，并且在故障操作模式期间，控制单元控制该或每个常开开关元件的切换到 关闭状态以抑制次级分支中的电流流动。
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公开(公告)号：US20150180231A1
公开(公告)日：2015-06-25
申请号：US14404273
申请日：2013-05-31
Applicant: ALSTOM Technology Ltd
Inventor： Robert Whitehouse , Carl David Barker
IPC: H02J1/00
CPC classification number: H02J1/00 , H02J1/14 , H02J3/36 , H02J2001/106 , Y02E60/60 , Y10T307/352
Abstract: A current flow controller (10) comprising: a plurality of terminals (12a, 12b, 14a, 14b) for connection, in use, to a plurality of DC power transmission medium (16,18) such that each DC power transmission medium (16,18) is connected to at least one of the plurality of terminals (12a, 12b, 14a, 14b); and a current flow control unit interconnecting the plurality of terminals (12a, 12b, 14a, 14b), the current flow control unit including a plurality of current flow control sub-units (20, 22, 23) each of which is, in use, connected to a respective DC power transmission medium (16, 18), each current flow control sub-unit (20, 22, 23) including at least one switching element (24, 28), the or each switching element (24, 28) of each current flow control sub-unit (20, 22, 23) being connected to the same energy storage device (26; 56) to selectively provide a voltage source, and a switching control unit (100) to control switching of each switching element (24, 28) of the current flow control unit to selectively inject a voltage drop (V1, V2), in use, into each DC power transmission medium (16,18) so as to simultaneously regulate current flow (I1, I2) in each DC power transmission medium (16, 18) and divert energy from at least one DC power transmission medium (16, 18) into at least one other DC power transmission medium (16, 18) via the current flow control unit.
Abstract translation: 一种电流控制器（10），包括：多个端子（12a，12b，14a，14b），用于在使用中连接到多个DC电力传输介质（16,18），使得每个DC电力传输介质（16 ，18）连接到所述多个端子（12a，12b，14a，14b）中的至少一个端子; 和连接多个端子（12a，12b，14a，14b）的电流控制单元，所述电流控制单元包括在使用中各自的多个电流控制子单元（20,22,23） ，连接到相应的直流电力传输介质（16,18），每个电流控制子单元（20,22,23）包括至少一个开关元件（24,28），所述或每个开关元件（24,28） 每个电流控制子单元（20,22,23）连接到相同的能量存储装置（26; 56）以选择性地提供电压源;以及开关控制单元（100），用于控制每个开关 电流流量控制单元的元件（24,28），用于在每个直流电力传输介质（16,18）中选择性地注入使用中的电压降（V1，V2），以同时调节电流（I1，I2） 在每个DC电力传输介质（16,18）中并且将能量从至少一个DC电力传输介质（16,18）转移到至少一个其它 DC电力传输介质（16,18）。
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