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公开(公告)号：US20150091488A1
公开(公告)日：2015-04-02
申请号：US14040767
申请日：2013-09-30
Applicant: General Electric Company
Inventor： Di Zhang , Luis José Garcés , Andrew Allen Rockhill , Rixin Lai
IPC: H02P27/06
CPC classification number: H02P27/06 , H02M7/217 , H02M7/487 , H02M2007/4835 , H02P1/16 , H02P27/14 , H02P27/16
Abstract: A system for driving an electric machine is provided. The system includes a power converter coupled to an input source and the electric machine. The power converter includes a leg that includes a first and second string. The first string includes plurality of controllable semiconductor switches, a first and second connecting node. The first string is operatively coupled across a first and second bus. The second string is operatively coupled to the first string via the first and second connecting node. The second string comprises plurality of switching modules. The switching modules include fully controllable semiconductor switches and energy storage devices. The system further includes a system controller configured to provide activation commands to the controllable semiconductor switches and the switching modules such that energy stored in the energy storage device is provided to the electric machine when the machine is switched on for operation.
Abstract translation: 提供一种用于驱动电机的系统。 该系统包括耦合到输入源和电机的功率转换器。 功率转换器包括包括第一和第二串的支脚。 第一串包括多个可控半导体开关，第一和第二连接节点。 第一串可操作地耦合在第一和第二总线上。 第二串通过第一和第二连接节点可操作地耦合到第一串。 第二串包括多个开关模块。 开关模块包括完全可控的半导体开关和能量存储装置。 该系统还包括系统控制器，该系统控制器被配置为向可控半导体开关和开关模块提供启动命令，使得当机器接通操作时，存储在能量存储装置中的能量被提供给电机。
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公开(公告)号：US09537421B2
公开(公告)日：2017-01-03
申请号：US14465887
申请日：2014-08-22
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Di Zhang , Dong Dong , Andrew Allen Rockhill
CPC classification number: H02M7/487 , H02M7/483 , H02M7/49 , H02M2007/4835
Abstract: A power converter includes at least one leg having a first string operatively coupled to a second string via a first connecting node and a second connecting node. The first string includes a first branch and a second branch operatively coupled via a third connecting node. Each of the branches has a plurality of switching units, a controllable semiconductor switch and the first connecting node and the second connecting node. The first string is operatively coupled across a first bus and a second bus. Furthermore, the second string includes a plurality of controllable semiconductor switches.
Abstract translation: 功率转换器包括至少一个支路，其具有经由第一连接节点和第二连接节点可操作地耦合到第二串的第一串。 第一串包括经由第三连接节点可操作地耦合的第一分支和第二分支。 每个分支具有多个开关单元，可控半导体开关和第一连接节点和第二连接节点。 第一串可操作地连接在第一总线和第二总线上。 此外，第二串包括多个可控半导体开关。
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3.发明授权Power converter with a first string having controllable semiconductor switches and a second string having switching modules 有权功率转换器，具有可控半导体开关的第一串和具有开关模块的第二串公开(公告)号：US09252681B2
公开(公告)日：2016-02-02
申请号：US14014516
申请日：2013-08-30
Applicant: General Electric Company
Inventor： Di Zhang , Luis José Garcés , Andrew Allen Rockhill , Rixin Lai
CPC classification number: H02M7/537 , H02M7/487 , H02M7/5152 , H02M7/7575 , H02M2001/0003 , H02M2007/4835 , Y02E60/60
Abstract: A power converter includes at least one leg including a first string that includes controllable semiconductor switches, a first connecting node, and a second connecting node and that is operatively coupled across a first bus and a second bus. A second string is operatively coupled to the first string via the first connecting node and the second connecting node. The second string includes a plurality of switching modules wherein each of the plurality of switching modules includes a plurality of fully controllable semiconductor switches and at least one energy storage device. The power converter includes a system controller to control activation of the controllable semiconductor switches and switching modules such that a controlled electrical variable is maintained at a first predetermined reference voltage value and the average internal stored energy of the energy storage devices is maintained at a second predetermined reference value.
Abstract translation: 功率转换器包括至少一条腿，其包括包括可控半导体开关的第一串，第一连接节点和第二连接节点，并且可操作地跨越第一总线和第二总线耦合。 第二串经由第一连接节点和第二连接节点可操作地耦合到第一串。 第二串包括多个开关模块，其中多个开关模块中的每一个包括多个完全可控的半导体开关和至少一个能量存储装置。 功率转换器包括系统控制器，用于控制可控半导体开关和开关模块的激活，使得受控电变量保持在第一预定参考电压值，并且能量存储装置的平均内部存储能量保持在第二预定 参考值。
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4.发明授权公开(公告)号：US09667167B2
公开(公告)日：2017-05-30
申请号：US14331242
申请日：2014-07-15
Applicant: General Electric Company
Inventor： Dong Dong , Di Zhang , Andrew Allen Rockhill
CPC classification number: H02M7/217 , H02M1/32 , H02M7/487 , H02M2007/4835
Abstract: A power converter including one or more converter legs is provided. Each converter leg includes a first string including a plurality of switches coupled to each other in series. The one or more converter legs also include a second string operatively coupled to the first string at a first node and a second node in a parallel configuration, where the second string includes a plurality of switching units, and where a second string of one converter leg of the one or more converter legs is operatively coupled to second strings corresponding to other converter legs in the one or more converter legs.
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5.发明申请SUPERCONDUCTING POWER GENERATION SYSTEM AND ASSOCIATED METHOD FOR GENERATING POWER 审中-公开超级发电系统及相关的发电方法公开(公告)号：US20150207365A1
公开(公告)日：2015-07-23
申请号：US14097361
申请日：2013-12-05
Applicant: General Electric Company
Inventor： Kiruba Sivasubramaniam Haran , Ernst Wolfgang Stautner , James Humphrie Rochford , Andrew Allen Rockhill , Ruben Jeevanasan Fair , Renuka Rajput-Ghoshal
CPC classification number: H02K55/04 , H02K7/1823 , Y02E40/625
Abstract: A system includes a generator unit coupleable to a hydro turbine. The generator unit includes a casing having a first stationary support coupleable to a base disposed within water and a superconducting generator disposed within the casing. The superconducting generator includes an annular armature and an annular field winding including a plurality of superconducting magnets disposed coaxial with the annular armature and separated by a gap. One of the annular armature and the annular field winding is rotatable by the hydro turbine and other of the annular armature and the annular field winding is stationary.
Abstract translation: 一种系统包括可耦合到水轮机的发电机单元。 发电机单元包括壳体，其具有可配置在水中的基座的第一固定支撑件和设置在壳体内的超导发电机。 超导发生器包括环形电枢和环形磁场绕组，其包括与环形电枢同轴设置并由间隙隔开的多个超导磁体。 环形电枢和环形磁场绕组中的一个可由水轮机和环形电枢中的另一个旋转，并且环形励磁绕组是静止的。
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Patent Agency Ranking
公开(公告)号：US20140092660A1
公开(公告)日：2014-04-03
申请号：US13953153
申请日：2013-07-29
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Di Zhang , Luis José Garcés Rivera , Ravisekhar Nadimpalli Raju , Rixin Lai , Andrew Allen Rockhill
IPC: H02M7/217
CPC classification number: H02M7/217 , H02M7/487 , H02M7/53871 , H02M7/7575 , H02M2007/4835 , Y02E60/60
Abstract: A power converter includes at least one leg with a first string including a plurality of controllable semiconductor switches, a first connecting node, and a second connecting node, wherein the first string is operatively coupled across a first bus and a second bus. The at least one leg also includes a second string operatively coupled to the first string via the first connecting node and the second connecting node, wherein the second string includes a plurality of switching units. The first string includes a first branch and a second branch, wherein the second branch is operatively coupled to the first branch via a third connecting node and the third connecting node is coupled to a ground connection.
Abstract translation: 功率转换器包括具有包括多个可控半导体开关的第一串的至少一个支脚，第一连接节点和第二连接节点，其中第一串可跨第一总线和第二总线可操作地耦合。 所述至少一个腿还包括经由所述第一连接节点和所述第二连接节点可操作地耦合到所述第一串的第二串，其中所述第二串包括多个开关单元。 第一串包括第一分支和第二分支，其中第二分支经由第三连接节点可操作地耦合到第一分支，并且第三连接节点耦合到接地连接。
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公开(公告)号：US10075056B2
公开(公告)日：2018-09-11
申请号：US15125325
申请日：2014-03-19
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Di Zhang , Luis Jose Garces , Andrew Allen Rockhill
CPC classification number: H02M1/083 , H02M7/1557 , H02M7/217 , H02M7/487 , H02M7/5152 , H02M7/525 , H02M7/539 , H02M7/7575 , H02M2007/4835 , Y02E60/60
Abstract: A method for power conversion includes coupling a first string to a second string via a first connecting node and a second connecting node to form at least one leg of a power converter. The first string is operatively coupled across a first bus and a second bus and comprises a first branch and a second branch coupled via a third connecting node. The first branch and the second branch include a plurality of controllable semiconductor switches. Furthermore, the second string comprises a first chain link and a second chain link coupled via an alternating current phase bus and includes a plurality of switching units. The first chain link and/or the second chain link are controlled to generate a negative voltage across at least one of the plurality of controllable semiconductor switches during a switch turn off process.
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公开(公告)号：US09515574B2
公开(公告)日：2016-12-06
申请号：US14543516
申请日：2014-11-17
Applicant: General Electric Company
Inventor： Di Zhang , Luis Jose Garces , Andrew Allen Rockhill
CPC classification number: H02M7/487 , H02M7/7575 , H02M2007/4835 , Y02E60/60
Abstract: A modular embedded multi-level converter (MEMC) includes a first phase portion and a second phase portion. The first phase portion includes a first switch stack operable to couple a first phase branch between a positive DC bus and a midpoint node. The second phase portion includes a second switch stack operable to couple a second phase branch between the midpoint node and a negative DC bus. A DC voltage between the positive DC bus and the negative DC bus is distributable among switching units disposed in the first phase branch and the second phase branch. A distribution of the DC voltage is controlled by regulating a DC voltage at the midpoint node to balance energy among the switching units.
Abstract translation: 模块化嵌入式多电平转换器（MEMC）包括第一相位部分和第二相位部分。 第一相位部分包括可操作以在正DC总线和中点节点之间耦合第一相位分支的第一开关堆叠。 第二相位部分包括可操作以在中点节点和负DC总线之间耦合第二相位分支的第二开关堆叠。 正DC总线和负DC总线之间的直流电压可以分配在设置在第一相分支和第二相分支中的开关单元之间。 通过调节中点节点处的直流电压来控制直流电压的分布，以平衡开关单元之间的能量。
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公开(公告)号：US09431918B2
公开(公告)日：2016-08-30
申请号：US13953153
申请日：2013-07-29
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Di Zhang , Luis José Garcés Rivera , Ravisekhar Nadimpalli Raju , Rixin Lai , Andrew Allen Rockhill
IPC: H02M7/5387 , H02M7/217 , H02M7/757 , H02M7/487 , H02M7/483
CPC classification number: H02M7/217 , H02M7/487 , H02M7/53871 , H02M7/7575 , H02M2007/4835 , Y02E60/60
Abstract: A power converter includes at least one leg with a first string including a plurality of controllable semiconductor switches, a first connecting node, and a second connecting node, wherein the first string is operatively coupled across a first bus and a second bus. The at least one leg also includes a second string operatively coupled to the first string via the first connecting node and the second connecting node, wherein the second string includes a plurality of switching units. The first string includes a first branch and a second branch, wherein the second branch is operatively coupled to the first branch via a third connecting node and the third connecting node is coupled to a ground connection.
Abstract translation: 功率转换器包括具有包括多个可控半导体开关的第一串的至少一个支脚，第一连接节点和第二连接节点，其中第一串可跨第一总线和第二总线可操作地耦合。 所述至少一个腿还包括经由所述第一连接节点和所述第二连接节点可操作地耦合到所述第一串的第二串，其中所述第二串包括多个开关单元。 第一串包括第一分支和第二分支，其中第二分支经由第三连接节点可操作地耦合到第一分支，并且第三连接节点耦合到接地连接。
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公开(公告)号：US20160141949A1
公开(公告)日：2016-05-19
申请号：US14543516
申请日：2014-11-17
Applicant: General Electric Company
Inventor： Di Zhang , Luis Jose Garces , Andrew Allen Rockhill
IPC: H02M1/02
CPC classification number: H02M7/487 , H02M7/7575 , H02M2007/4835 , Y02E60/60
Abstract: A modular embedded multi-level converter (MEMC) includes a first phase portion and a second phase portion. The first phase portion includes a first switch stack operable to couple a first phase branch between a positive DC bus and a midpoint node. The second phase portion includes a second switch stack operable to couple a second phase branch between the midpoint node and a negative DC bus. A DC voltage between the positive DC bus and the negative DC bus is distributable among switching units disposed in the first phase branch and the second phase branch. A distribution of the DC voltage is controlled by regulating a DC voltage at the midpoint node to balance energy among the switching units.
Abstract translation: 模块化嵌入式多电平转换器（MEMC）包括第一相位部分和第二相位部分。 第一相位部分包括可操作以在正DC总线和中点节点之间耦合第一相位分支的第一开关堆叠。 第二相位部分包括可操作以在中点节点和负DC总线之间耦合第二相位分支的第二开关堆叠。 正DC总线和负DC总线之间的直流电压可以分配在设置在第一相分支和第二相分支中的开关单元之间。 通过调节中点节点处的直流电压来控制直流电压的分布，以平衡开关单元之间的能量。
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