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公开(公告)号：US09570252B2
公开(公告)日：2017-02-14
申请号：US14164620
申请日：2014-01-27
Applicant: General Electric Company
Inventor： Piniwan Thiwanka Bandara Wijekoon , Eva-Maria Baerthlein , Simon Herbert Schramm , Stefan Schroeder , Ara Panosyan , Rohit Kumar Gupta
CPC classification number: H01H9/542 , H01F29/04 , H01H9/0005 , H01H9/0016 , H01H9/0027 , H01H2009/546
Abstract: A system for operating an on-load tap changer (OLTC) includes a plurality of legs that include mechanical switches. At least one leg switches from a first to a second tap of the OLTC on receipt of a tap change signal. At least one mechanical switch is activated to establish an electrical connection between one of the first and the second tap and a power terminal of the OLTC. Further, the system includes semiconductor switches that are parallel to the mechanical switches and when activated electrically couple one of the first and the second tap and the power terminal. The system includes a processing unit that selectively activates and deactivates the mechanical and semiconductor switches in such a way that electrical contact is maintained between at least one of the taps and the power terminal during the transition of at least one leg from the first tap to the second tap.
Abstract translation: 用于操作有载分接开关（OLTC）的系统包括多个包括机械开关的支脚。 在接收到抽头变换信号时，至少一个支路从OLTC的第一个抽头切换到第二个抽头。 至少一个机械开关被激活以在第一和第二抽头中的一个和OLTC的电源端之间建立电连接。 此外，该系统包括与机械开关平行的半导体开关，并且当被激活时电耦合第一和第二抽头之一以及电源端子。 该系统包括处理单元，其选择性地激活和停用机械和半导体开关，使得在至少一个支路从第一分接头到第一分接头的转换期间电触头保持在至少一个抽头和电源端子之间 第二击。
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公开(公告)号：US09419536B2
公开(公告)日：2016-08-16
申请号：US14193525
申请日：2014-02-28
Applicant: General Electric Company
Inventor： Piniwan Thiwanka Bandara Wijekoon , Christof Martin Sihler , Stefan Schroeder , Jie Shen , Pierluigi Tenca
CPC classification number: H02M7/06 , H02J3/36 , H02M1/12 , H02M1/14 , H02M5/04 , H02M7/48 , Y02E60/60
Abstract: A DC power transmission system is configured to generate an electric field including components substantially constant with respect to time and varying with time. The DC power transmission system includes an AC stage configured to receive AC electrical power. The AC stage includes a transformer including primary windings and secondary windings configured to be electromagnetically coupled to, and electrically isolated from, each other. The AC stage also includes an AC/AC converter having substantially no insulating features against the at least one substantially constant component of the electric field. The AC/AC converter is electrically coupled to the primary windings. The DC power transmission system also includes an AC/DC conversion stage positioned downstream of the AC stage. The AC/DC conversion stage includes an AC/DC rectifier configured to convert AC electrical power to DC electrical power without external control. The AC/DC rectifier is coupled to the secondary windings.
Abstract translation: 直流电力传输系统被配置为产生包括相对于时间基本上恒定且随时间变化的分量的电场。 直流电力传输系统包括被配置为接收AC电力的AC级。 AC级包括变压器，其包括初级绕组和次级绕组，其被配置为电磁耦合到彼此并且彼此电隔离。 AC级还包括AC / AC转换器，其基本上没有与电场的至少一个基本恒定的分量相对的绝缘特性。 AC / AC转换器电耦合到初级绕组。 直流电力传输系统还包括位于AC级下游的AC / DC转换级。 AC / DC转换级包括AC / DC整流器，被配置为在没有外部控制的情况下将AC电力转换为DC电力。 AC / DC整流器耦合到次级绕组。
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公开(公告)号：US20160149507A1
公开(公告)日：2016-05-26
申请号：US14550297
申请日：2014-11-21
Applicant: General Electric Company
Inventor： Qin Lei , Jie Shen , Stefan Schroeder
IPC: H02M5/44
CPC classification number: H02M7/487 , H02M1/12 , H02M7/483 , H02M2001/123
Abstract: A power conversion system includes at least one multi-level power converter and a controller coupled to the at least one multi-level power converter. The controller includes a first CMV injection module and a second CMV injection module. The first CMV injection module generates a first CMV signal for modifying at least one voltage command to achieve a first function in association with operation of the power conversion system. The second CMV injection module generates a second CMV signal based at least in part on a three-level CMV limit either for modifying the at least one voltage command or for further modifying the at least one modified voltage command to achieve a second function in association with operation of the power conversion system.
Abstract translation: 电力转换系统包括至少一个多电平功率转换器和耦合到所述至少一个多电平功率转换器的控制器。 控制器包括第一CMV注入模块和第二CMV注入模块。 第一CMV注入模块产生用于修改至少一个电压命令的第一CMV信号，以实现与功率转换系统的操作相关联的第一功能。 第二CMV注入模块至少部分地基于三电平CMV限制产生第二CMV信号，用于修改至少一个电压命令或用于进一步修改至少一个修改的电压命令以实现与 电力转换系统的运行。
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公开(公告)号：US20150162144A1
公开(公告)日：2015-06-11
申请号：US14099155
申请日：2013-12-06
Applicant: General Electric Company
Inventor： Ara Panosyan , Eva-Maria Baerthlein , Simon Schramm , Stefan Schroeder , Malcolm Graham Smith, JR. , Piniwan Thiwanka Bandara Wijekoon
IPC: H01H9/00
CPC classification number: H01H9/0011 , H01F29/04 , H01H9/0005 , H01H9/0016
Abstract: A method of switching taps by an on-load tap changer includes providing at least two fingers each comprising an impedance and a mechanical switch. When first and second mechanical switches of the first and second fingers are closed, they provide a connection between the first and second impedances of the first and second fingers and a power terminal of the on-load tap changer. The on-load tap changer is triggered to shift at least one of the fingers from a first tap to a second tap of the on-load tap changer when a tap change signal is received. A solid state switch connected between the first and second impedances is switched on to commutate a current from the first finger to the second finger during the tap change operation.
Abstract translation: 一种通过有载分接开关切换抽头的方法包括提供至少两个手指，每个手指包括阻抗和机械开关。 当第一和第二手指的第一和第二机械开关闭合时，它们提供第一和第二指状件的第一和第二阻抗与有载分接开关的电源端子之间的连接。 当接收到抽头变换信号时，触发有载抽头变换器将至少一个手指从第一抽头移动到有载分接开关的第二抽头。 连接在第一和第二阻抗之间的固态开关被接通以在分接变换操作期间将电流从第一手指转换到第二手指。
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公开(公告)号：US20150115902A1
公开(公告)日：2015-04-30
申请号：US14065702
申请日：2013-10-29
Applicant: General Electric Company
Inventor： Ara Panosyan , Said Farouk Said El-Barbari , Stefan Schroeder
CPC classification number: H02H7/067 , H01H9/542 , H02J3/24 , H02J3/38 , H02J2003/001
Abstract: A power generation system includes a generator mechanically coupled to an engine to generate electrical power and a fault ride through system connected between the generator and a power grid. The fault ride through system includes a mechanical switch connected in parallel with a solid state switch and a resistor to absorb power from the generator during a grid fault condition. The mechanical switch and the solid state switch are controlled in coordination with the engine.
Abstract translation: 发电系统包括机械耦合到发动机以产生电力的发电机和连接在发电机和电网之间的故障穿越系统。 故障穿越系统包括与固态开关并联的机械开关和电阻器，以在电网故障状态期间吸收来自发电机的电力。 机械开关和固态开关与发动机协调控制。
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Patent Agency Ranking
公开(公告)号：US20140333268A1
公开(公告)日：2014-11-13
申请号：US14339552
申请日：2014-07-24
Applicant: General Electric Company
Inventor： Stefan Schroeder , Ara Panosyan , Christoph Boeld , Herbert Schaumberger , Xiaoting Dong , Uwe Liebscher
CPC classification number: H02P15/00 , F03D7/0244 , F03D7/0272 , F16D2121/20 , H02K7/104 , H02K49/046 , H02P3/04 , H02P3/12 , H02P9/06 , Y02E10/723
Abstract: A braking system includes a converter, a capacitor coupled to an output of the converter, a bridge coupled in parallel to the capacitor, and at least one inductor coupled to the bridge, an electrically conductive disc disposed proximate to the at least one inductor, and a switching unit controller for commanding the converter to convert a level of voltage supplied therefrom from a first voltage level to a second voltage level and thereby increase energy stored in the capacitor, and, upon receiving a brake command, commanding the bridge to ramp-up electrical current in the at least one inductor so as to induce an electromagnetic force on the electrically conductive disc.
Abstract translation: 制动系统包括转换器，耦合到转换器的输出的电容器，并联于电容器的桥，以及耦合到桥的至少一个电感器，靠近至少一个电感器设置的导电盘，以及 开关单元控制器，用于命令转换器将从其提供的电压电平从第一电压电平转换为第二电压电平，从而增加存储在电容器中的能量，并且在接收到制动命令时，命令桥接器上升 在至少一个电感器中的电流，以便在导电盘上引起电磁力。
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公开(公告)号：US10928450B2
公开(公告)日：2021-02-23
申请号：US15861707
申请日：2018-01-04
Applicant: General Electric Company
Inventor： Marius Michael Mechlinski , Stefan Schroeder , Jie Shen , Fan Zhang , Zhihui Yuan
Abstract: A method for protecting a circuit is provided, wherein the circuit comprises a plurality of switch devices connected in series. The method comprises detecting a failure risk indicator of each switch device; determining whether each switch device has a failure risk based on the corresponding failure risk indicator; and making each of the switch device(s) having the failure risk in a constant on-state to eliminate the failure risk and prevent a failure of the switch device optionally if a number of the switch device(s) which have or had the failure risk is less than or equal to a preset value.
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公开(公告)号：US20180342349A1
公开(公告)日：2018-11-29
申请号：US15987666
申请日：2018-05-23
Applicant: General Electric Company
Inventor： Saijun Mao , Bo Qu , Jingkui Shi , He Xu , Jie Shen , Tingting Song , Zhihui Yuan , Xin Jiang , Xi Lu , Stefan Schroeder , Marius Michael Mechlinski
IPC: H01F38/14 , H05K1/18 , H01F27/28 , H01F27/24 , H03K17/687
Abstract: An integrated system for signal and power transmission with galvanic isolation is disclosed. The integrated system comprises an insulative layer having a primary side and a secondary side; a planar signal transformer and a planar power transformer for signal and power transmission between the primary and the secondary sides of the insulative layer respectively. The planar signal transformer comprises two signal coupling elements which are disposed on the primary and the secondary sides of the insulative layer respectively. The planar power transformer includes two power coupling elements which are disposed on the primary and the secondary sides of the insulative layer respectively. Each of the two signal coupling elements and the two power coupling elements is embedded in at least one layer of a multi-layer printed circuit board. The integrated system of the present disclosure has a compact structure and is suitable for automatic assembly and manufacturing.
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公开(公告)号：US09634576B2
公开(公告)日：2017-04-25
申请号：US14317361
申请日：2014-06-27
Applicant: General Electric Company
Inventor： Jie Shen , Stefan Schroeder , Kunlun Chen , Shuitao Yang , Bo Qu , Qin Lei
CPC classification number: H02M7/487 , H02M1/12 , H02M7/483 , H02M2001/123 , Y10T307/707
Abstract: A power conversion system includes at least one multi-level power converter and a controller coupled to the at least one multi-level power converter. The controller includes a first CMV injection module and a second CMV injection module. The first CMV injection module generates a first CMV signal for modifying at least one voltage command to achieve a first function in association with operation of the power conversion system. The second CMV injection module generates a second CMV signal based at least in part on a local limit either for modifying the at least one voltage command or for further modifying the at least one modified voltage command to achieve a second function in association with operation of the power conversion system.
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公开(公告)号：US09557754B2
公开(公告)日：2017-01-31
申请号：US14258667
申请日：2014-04-22
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Ara Panosyan , Eva-Maria Baerthlein , Simon Herbert Schramm , Stefan Schroeder , Rohit Kumar Gupta , Pinwan Thiwanka Bandara Wijekoon , Malcolm Graham Smith, Jr.
CPC classification number: G05F1/20 , H01F29/04 , H01H9/0005
Abstract: A method of switching taps of an on-load tap changer includes providing a main finger, a first side finger including a first solid state switch and a second side finger including a second solid state switch. The main finger, the first side finger and the second side finger are utilized to provide a connection between the taps and a power terminal of the on-load tap changer. The method also includes triggering the on-load tap changer to shift the fingers from a first tap to a second tap of the on-load tap changer when a tap change signal is received and utilizing the first solid state switch and the second solid state switch to commutate a current during the tap change operation.
Abstract translation: 一种开关有载分接开关的抽头的方法包括提供主指，包括第一固态开关的第一侧指和包括第二固态开关的第二侧指。 主指状物，第一侧指和第二侧指用于提供抽头与有载分接开关的电源端之间的连接。 该方法还包括当接收到抽头变换信号时触发有载分接开关将手指从第一抽头移动到有载分接开关的第二抽头，并利用第一固态开关和第二固态开关 在分接变换操作期间换向电流。
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