公开(公告)号：US20140169040A1

公开(公告)日：2014-06-19

申请号：US13719259

申请日：2012-12-19

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Stefan Schroeder ,  Jie Shen ,  Samir Soua

IPC: H02M3/335

CPC classification number: H02M3/33507 ,  H02M1/36 ,  H02M3/335 ,  H02M7/483 ,  H02M7/487 ,  H02M7/521 ,  H02M7/537 ,  H02M2007/4835

Abstract: A power converter is presented. The power converter includes at least one leg operatively coupled between a first bus and a second bus and includes a first string including a plurality of non-controllable semiconductor switches, a first node, a second node, and a third node, where the first node is coupled to a third bus, one or more second strings, where each of the one or more second strings includes at least one fully controllable semiconductor switch, and where one of the second strings is coupled between the first node and the third bus and another second string is coupled between the second node and the third node, and one or more third strings, where each of the one or more third strings includes at least one energy storage device and is coupled to the first string, the one or more second strings, or a combination thereof.

Abstract translation: 介绍了一种电源转换器。 功率转换器包括可操作地耦合在第一总线和第二总线之间的至少一个支路，并且包括包括多个不可控半导体开关，第一节点，第二节点和第三节点的第一串，其中第一节点 耦合到第三总线，一个或多个第二串，其中所述一个或多个第二串中的每一个包括至少一个完全可控制的半导体开关，并且其中第二串中的一个耦合在第一节点和第三总线之间，另一个 第二串耦合在第二节点和第三节点之间，以及一个或多个第三串，其中一个或多个第三串中的每一个包括至少一个能量存储设备并且耦合到第一串，所述一个或多个第二串 ，或其组合。

公开(公告)号：US20190207599A1

公开(公告)日：2019-07-04

申请号：US16223590

申请日：2018-12-18

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Marius Mechlinski ,  Zhihui Yuan ,  Jingkui Shi ,  Stefan Schroeder

IPC: H03K17/0812 ,  G01R19/165 ,  G01R31/327

CPC classification number: H02M1/32 ,  H02M1/088 ,  H02M2001/325 ,  H03K17/0822 ,  H03K17/18 ,  H03K17/74 ,  H03K2217/0027

Abstract: Embodiments of the present disclosure relate to a detection device for a circuit comprising a plurality of switch devices coupled in series. The detection device comprises a plurality of detecting circuits, wherein each detecting circuit is integrated with a gate driver of a corresponding switch device. Each detecting circuit comprises a voltage divider and a signal processor. The voltage divider is coupled in parallel with the corresponding switch device and comprises a plurality of voltage dividing components coupled in series. The signal processor is coupled with one of the voltage dividing components and configured to receive a divided voltage across the voltage dividing component and output an output signal indicating the voltage across the switch device. Embodiments of the present disclosure also relate to a system and method for protecting series-connected switch devices.

公开(公告)号：US20190207598A1

公开(公告)日：2019-07-04

申请号：US16223514

申请日：2018-12-18

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Hao Yu ,  Fan Zhang ,  Zhihui Yuan ,  Jiao Liu ,  Stefan Schroeder ,  Yingqi Zhang

IPC: H03K17/0812

CPC classification number: H03K17/0822 ,  H03K17/0828

Abstract: A protection circuit for a controllable switch comprising a control terminal, a first terminal, and a second terminal having a lower electric potential than the first terminal, the protection device comprising: an active clamping module, coupled between the first terminal and the control terminal of the controllable switch, configured to clamp a first voltage across the first terminal and the second terminal; and a damping module, coupled to an output of the active clamping module and configured to damp oscillations of a second voltage across the control terminal and the second terminal. Embodiments of the present disclosure also relate to a protection method for a controllable switch.

公开(公告)号：US10296071B2

公开(公告)日：2019-05-21

申请号：US16125131

申请日：2018-09-07

Applicant: General Electric Company

Inventor： Simon Herbert Schramm ,  Said Farouk Said El-Barbari ,  Stefan Schroeder ,  Zhihui Yuan

IPC: H02M3/335 ,  G06F1/3287 ,  G06F1/3293

Abstract: A power converter includes primary and secondary bridges, a transformer, and a controller configured to generate a switching mode map that correlates each of a plurality of switching modes to a respective set of value ranges of system parameters of the power converter. The sets of system parameter value ranges are contiguous and non-overlapping across the switching mode map, each of the plurality of switching modes includes gate trigger voltage timings for commuting at least one of the primary and secondary bridges. The controller is configured to obtain a plurality of measured system parameter values, select from the switching mode map one of the plurality of switching modes that correlates to the set of system parameter values containing the plurality of measured system parameter values, and adjust gate trigger voltage timings of at least one of the primary and secondary bridges, according to the selected switching mode.

公开(公告)号：US20180366391A1

公开(公告)日：2018-12-20

申请号：US15627477

申请日：2017-06-20

Applicant: General Electric Company

Inventor： Alistair Martin Waddell ,  Mark Aaron Chan Chan ,  Stefan Schroeder

IPC: H01L23/473 ,  G06F1/20

CPC classification number: H01L23/473 ,  G06F1/20 ,  G06F2200/201 ,  H05K7/20927

Abstract: A heat transfer assembly useful for dissipating heat from the heat emitting device is disclosed. The assembly includes a module inlet for receiving a coolant, at least one module having a first part with a recess to receive a portion of the heat emitting device, and a second part having a shaped cutout portion and a solid portion, where the second part allows a uniform compression of a seal component disposed on the first part. The first part and the second part are mechanically connected to each other; and a module outlet is used for discharging a heat absorbed coolant after absorbing heat from the heat emitting device, where the at least one module is connected to the module inlet and the module outlet. In another embodiment, multiple modules are configured in a symmetrical layout to provide a balanced flow of the coolant in the heat transfer assembly.

公开(公告)号：US20170025964A1

公开(公告)日：2017-01-26

申请号：US14806929

申请日：2015-07-23

Applicant: General Electric Company

Inventor： Farouk Said El-Barbari ,  Simon Herbert Schramm ,  Stefan Schroeder ,  Alvaro Jorge Mari Curbelo

IPC: H02M3/335

CPC classification number: H02M3/33584 ,  H02M3/33576 ,  H02M3/3376

Abstract: A converter assembly and method are provided. The converter assembly includes a galvanic isolation device, first switching devices, and second switching devices. The switching devices are conductively coupled with each other and with opposite sides of the isolation device. The first switching devices control conduction of an input voltage, and the second switching devices control conduction of electric power. The first switching devices are configured to switch between an open state and a closed state at frequencies that are faster than frequencies at which the second switching devices switch between the open state and the closed state to control a shape of a waveform of the electric power.

Abstract translation: 提供了一种转换器组件和方法。 转换器组件包括电隔离装置，第一开关装置和第二开关装置。 开关装置彼此导电耦合并且与隔离装置的相对侧导电耦合。 第一开关装置控制输入电压的导通，而第二开关装置控制电力的传导。 第一开关装置被配置成在比第二开关装置在打开状态和闭合状态之间切换的频率更快的频率处在打开状态和闭合状态之间切换以控制电力波形的形状。

公开(公告)号：US09537301B1

公开(公告)日：2017-01-03

申请号：US14821427

申请日：2015-08-07

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Stefan Schroeder ,  Mikhail Avramovich Avanesov ,  Ara Panosyan ,  Christoph Boeld ,  Herbert Schaumberger ,  Uwe Liebscher

IPC: F02D29/06 ,  F03B13/10 ,  F03B15/08 ,  H02P9/04 ,  H02H7/06 ,  H02K49/04 ,  H02P3/04 ,  H02P9/06 ,  H02K7/18 ,  H02K49/02 ,  H02P15/00

CPC classification number: H02H7/067 ,  H02K7/104 ,  H02K49/046 ,  H02P3/04 ,  H02P9/06

Abstract: A system including an electromagnetic braking system that has an eddy current brake. The eddy current brake includes an electrically conductive surface coupled to a shaft of a generator system, wherein the eddy current brake is configured to induce an electromagnetic force on the electrically conductive surface when powered. The electromagnetic braking system further includes a supercapacitor coupled to the eddy current brake, wherein the supercapacitor is configured to discharge to power the eddy current brake for the duration of a ride through event of the generator system, and the supercapacitor is configured to supply a threshold current to the eddy current brake within approximately 100 ms of a start of the ride through event.

Abstract translation: 一种包括具有涡流制动器的电磁制动系统的系统。 涡流制动器包括耦合到发电机系统的轴的导电表面，其中涡流制动器被配置成在通电时在导电表面上引起电磁力。 电磁制动系统还包括耦合到涡流制动器的超级电容器，其中超电容器被配置为在发电机系统的事件持续时间内对涡流制动器进行放电，并且超级电容器被配置为提供阈值 在通过事件的开始的大约100ms内电流到涡流制动器。

公开(公告)号：US20160359365A1

公开(公告)日：2016-12-08

申请号：US15241968

申请日：2016-08-19

Applicant: General Electric Company

Inventor： Stefan Schroeder ,  Christof Martin Sihler ,  Sebastian Pedro Rosado

IPC: H02J13/00 ,  H02J3/01

CPC classification number: H02J13/0096 ,  H02J3/01 ,  H02J3/36 ,  H02J11/00 ,  Y02E60/60 ,  Y10T307/445

Abstract: A method and system for a control power supply system is provided. The control power supply system includes a first conductor configured to carry a direct current (DC) electrical current from a source to a load, a second conductor configured to carry the DC electrical current from the load to the source, and an AC power source coupled to at least one of the first and the second conductors, the AC power source configured to superimpose a selectable relatively high frequency AC component onto the DC electrical current to generate a composite power signal.

Abstract translation: 提供了一种用于控制电源系统的方法和系统。 控制电源系统包括被配置为承载来自源到负载的直流（DC）电流的第一导体，被配置为将DC电流从负载承载到源的第二导体，以及耦合的AC电源 到所述第一和第二导体中的至少一个，所述AC电源被配置为将可选择的相对高频AC分量叠加到所述DC电流上以产生复合功率信号。

公开(公告)号：US09407187B2

公开(公告)日：2016-08-02

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

IPC: B60L7/00 ,  H02P15/00 ,  H02P3/04 ,  H02K49/04 ,  F03D7/02 ,  H02P9/06 ,  H02P3/12 ,  H02K7/104 ,  F16D121/20

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。

公开(公告)号：US20150213971A1

公开(公告)日：2015-07-30

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

IPC: H01H9/54 ,  H01H9/00

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。