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公开(公告)号：US09755545B2
公开(公告)日：2017-09-05
申请号：US14550297
申请日：2014-11-21
Applicant: General Electric Company
Inventor： Qin Lei , Jie Shen , Stefan Schroeder
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.
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公开(公告)号：US09640312B2
公开(公告)日：2017-05-02
申请号：US14462972
申请日：2014-08-19
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Zhihui Yuan , Xiaoting Dong , Jie Shen , Stefan Schroeder , Konrad Roman Weeber
CPC classification number: H01F27/28 , H01F30/12 , H01F37/00 , H02M1/126 , H02M2001/123
Abstract: A common mode choke includes at least two groups of multi-phase coils wound on a magnetic core for balancing differential mode inductance between the phases. The multi-phase coils in each group are series connected and concentrically wound on a respective portion of the magnetic core. Each group of multi-phase coils is non-overlapping with each other group of multi-phase coils.
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公开(公告)号：US09537416B2
公开(公告)日：2017-01-03
申请号：US14555956
申请日：2014-11-28
Applicant: General Electric Company
Inventor： Zhihui Yuan , Qingyun Chen , Stefan Schroeder , Jie Shen
CPC classification number: H02M5/44 , H02M1/36 , H02M5/45 , H02M7/483 , H02M2007/4835
Abstract: An electrical circuit for a power converter includes a first switching device proximate an AC source. The circuit also includes a voltage measurement device proximate a DC link and extends between the AC source and the DC link. The circuit further includes a DC voltage source and a first capacitive device. The first capacitive device is positioned between the first switching device and the voltage measurement device. The circuit further includes a second switching device positioned between the first capacitive device and the voltage measurement device. The circuit also includes a controller operatively coupled to the DC voltage source, the voltage measurement device, and the switching devices. The controller is configured to open the second switching device when a measured voltage signal generated by the voltage measurement device is substantially representative of a reference voltage value.
Abstract translation: 用于功率转换器的电路包括靠近AC电源的第一开关装置。 电路还包括靠近DC链路的电压测量装置，并且在AC源和DC链路之间延伸。 电路还包括直流电压源和第一电容性装置。 第一电容器件位于第一开关器件和电压测量器件之间。 该电路还包括位于第一电容性装置和电压测量装置之间的第二开关装置。 电路还包括可操作地耦合到DC电压源，电压测量装置和开关装置的控制器。 控制器被配置为当由电压测量装置产生的测量电压信号基本上代表参考电压值时，打开第二开关装置。
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公开(公告)号：US20160380572A1
公开(公告)日：2016-12-29
申请号：US15261451
申请日：2016-09-09
Applicant: General Electric Company
Inventor： Jie Shen , Jun Wang , Stefan Schroeder , Fan Zhang
CPC classification number: H02P27/06 , H02P23/0004 , H05K9/0007 , H05K9/002 , H05K9/0049 , H05K9/0088
Abstract: An electromagnetic shielding structure includes a first shielding material disposed at a first location with respect to at least one radiation source and a second shielding material attached with the first shielding material by fastening means. The second shielding material is disposed at a second location with respect to the at least one electromagnetic radiation source so as to define a predetermined gap between the first shielding material and the second shielding material. The first shielding material shields at least part of first frequency electromagnetic radiations generated from the at least one electromagnetic radiation source and penetrating through the second shielding material and the predetermined gap. The second shielding material shields at least part of second frequency electromagnetic radiations generated from the at least one electromagnetic radiation source.
Abstract translation: 电磁屏蔽结构包括相对于至少一个辐射源设置在第一位置处的第一屏蔽材料和通过紧固装置附接有第一屏蔽材料的第二屏蔽材料。 第二屏蔽材料相对于至少一个电磁辐射源设置在第二位置，以便在第一屏蔽材料和第二屏蔽材料之间限定预定的间隙。 第一屏蔽材料屏蔽从至少一个电磁辐射源产生并穿透第二屏蔽材料和预定间隙的第一频率电磁辐射的至少一部分。 第二屏蔽材料屏蔽从至少一个电磁辐射源产生的第二频率电磁辐射的至少一部分。
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公开(公告)号：US20140198548A1
公开(公告)日：2014-07-17
申请号：US14156760
申请日：2014-01-16
Applicant: General Electric Company
Inventor： Richard S Zhang , Yi Zhu , Fan Zhang , Stefan Schroeder , Jie Shen , Samir Soua
IPC: H02M7/537
Abstract: A converter includes a first converter module and a second converter module coupled to the first converter module in a nested manner. Each of the first converter module and the second converter module includes a plurality of switch units. When the converter is operated to perform power conversion, at least two of the plurality of switch units is configured to be switched both in a complementary pattern and a non-complementary pattern.
Abstract translation: A转换器包括以嵌套方式耦合到第一转换器模块的第一转换器模块和第二转换器模块。 第一转换器模块和第二转换器模块中的每一个包括多个开关单元。 当转换器被操作以执行功率转换时，多个开关单元中的至少两个被配置为以互补模式和非互补模式切换。
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Patent Agency Ranking
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。
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公开(公告)号：US11456660B2
公开(公告)日：2022-09-27
申请号：US15777919
申请日：2016-12-19
Applicant: General Electric Company
Inventor： Zhihui Yuan , Stefan Schroeder , Jie Shen , Mohamed Ahmed Abdelmohsen Hashem , Yunzheng Chen
Abstract: A power conversion system includes one or more power conversion devices coupled to a grid connection. Each of the power conversion devices includes a power converter for converting a first multiphase current provided by the grid connection into a second current; a grid side filter coupled between the grid connection and an input of the power converter; a load side filter coupled to an output of the power converter; neutral points of the grid side filter and the load side filter connected together to form a first node; wherein the first node is not directly grounded.
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公开(公告)号：US10916947B2
公开(公告)日：2021-02-09
申请号：US15129526
申请日：2015-03-27
Applicant: General Electric Company
Inventor： Jie Shen , Zhihui Yuan , Christof Martin Sihler , Stefan Schroeder , Mark Aaron Chan , Fei Xu
Abstract: A modular substation (10) for subsea applications includes a plurality of modular DC/AC converters (32) configured for converting DC electrical power transmitted along a DC transmission link (24) into AC electrical power for supplying to a plurality of subsea loads (56). The plurality of modular DC/AC converters (32) is configured to couple in series to the DC transmission link (24) and couple in parallel to an AC distribution network (52). At least a first modular DC/AC converter (32) is configured to be selectively electrically and mechanically disconnected from the DC transmission link (24) and the AC distribution network (52) to facilitate maintenance of the first modular DC/AC converters (32) while the AC distribution network (52) continues to supply AC electrical power to at least one of the plurality of subsea loads (56). The modular substation (10) also comprises protection and bypass circuits (26) intended to isolate faulty DC/AC converters (32) and to facilitate safe maintenance and repair.
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公开(公告)号：US10585134B2
公开(公告)日：2020-03-10
申请号：US15766132
申请日：2015-10-05
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Max-Josef Kell , Stefan Schroeder , Jie Shen , Zhihui Yuan , Yunzheng Chen , Mohamed Hashem
IPC: G01R31/08 , H02H3/16 , H02H7/22 , H02H3/10 , H02H3/36 , H02H7/12 , H02J3/36 , H02H1/00 , G01R31/02 , H02H7/122 , H02H7/125
Abstract: A drive system includes a current sensor configured to generate a first current signal representative of a current flowing in one or more electrical devices electrically coupled together through a power supply bus, a power output bus, and a common ground. The drive system also includes a voltage sensor configured to generate a first voltage signal representative of a voltage with respect to the common ground in the one or more electrical devices. The drive system further includes a ground fault detection controller configured to determine a ground fault in the one or more electrical devices based on a change in at least one of the first current signal and the first voltage signal.
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20.发明授权公开(公告)号：US10476373B2
公开(公告)日：2019-11-12
申请号：US15772953
申请日：2016-10-25
Applicant: General Electric Company
Inventor： Zhihui Yuan , Richard S. Zhang , Stefan Schroeder , Yingqi Zhang , Jie Shen , Fan Zhang
Abstract: A method for controlling a plurality of series connected switch modules each including at least two parallel connected electronic switches, the method includes the step of, in response to failure of any electronic switch of one or more switch modules, turning on any non-faulty electronic switch of one or more faulty switch modules when the electronic switches of other non-faculty switch modules are controlled to be turned on.
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