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1.发明授权公开(公告)号：US09065377B2
公开(公告)日：2015-06-23
申请号：US13838925
申请日：2013-03-15
Applicant: General Electric Company
Inventor： Chunchun Xu , Allen Michael Ritter , Cyrus David Harbourt , Luis Jose Garces , Cheng Luo
CPC classification number: H02P27/06 , H02M1/12 , H02M5/45 , H02M7/17 , H02M7/19 , H02M7/493 , H02M7/521 , H02P25/024 , H02P29/032 , H02P2201/13
Abstract: A load commutated inverter (LCI) drive system for a synchronous electrical machine is provided. The system may include a first supply bridge and a second supply bridge, each of which may include an alternating current to direct current (AC-to-DC) source side converter, a DC link circuit, and a DC-to-AC load side inverter. The system may include a controller for selectively controlling at least one of the first supply bridge and the second supply bridge by selective firings of silicon controlled rectifiers (SCRs). The electrical power outputted from the first supply bridge and the second supply bridge may be combined by an output delta-wye electric power transformer and supplied to the electrical machine. The LCI drive system may further include one or more input electric power transformers configured to supply an input electric power to the first supply bridge and the second supply bridge.
Abstract translation: 提供了一种用于同步电机的负载换向逆变器（LCI）驱动系统。 该系统可以包括第一供电桥和第二供电桥，每个电桥可以包括直流（AC至DC）源侧转换器，直流链路电路和直流到交流负载侧的交流电 逆变器。 该系统可以包括控制器，用于通过硅控整流器（SCR）的选择性启动来选择性地控制第一供电桥和第二供电桥中的至少一个。 从第一供电桥和第二供电桥输出的电力可以由输出三角形电力变压器组合并供给电机。 LCI驱动系统还可以包括一个或多个输入电力变压器，其被配置为向第一供电桥和第二供电桥提供输入电力。
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公开(公告)号：US20150131328A1
公开(公告)日：2015-05-14
申请号：US14074778
申请日：2013-11-08
Applicant: General Electric Company
Inventor： Fengfeng Tao , Michael Joseph Schutten , Eladio Clemente Delgado , Luis Jose Garces , Rui Zhou , Xinhui Wu , Maja Harfman Todorovic , Lei Wang
IPC: H02M3/335
CPC classification number: H02M3/3376 , H02M2001/0058 , H02M2001/0093 , Y02B70/1433 , Y02B70/1491
Abstract: A power conversion system is presented. The system includes a power source coupled to a power converter and a controller. The controller is configured to determine a value of at least one parameter corresponding to the power source. Additionally, the controller is configured to provide a first portion of the at least one parameter to the power converter and modify an operating frequency of the power converter, duty ratio of the power converter, or a combination thereof. Furthermore, the controller is configured to obtain an electrical quantity at an output of the power converter based on the modified operating frequency, the modified duty ratio, or a combination thereof. Also, the controller is configured to deliver a combination of the electrical quantity obtained at the output of the power converter and a second portion of the at least one parameter to a load. Method for converting power is also presented.
Abstract translation: 介绍了电力转换系统。 该系统包括耦合到功率转换器和控制器的电源。 控制器被配置为确定与电源对应的至少一个参数的值。 此外，控制器被配置为向功率转换器提供至少一个参数的第一部分，并修改功率转换器的工作频率，功率转换器的占空比或其组合。 此外，控制器被配置为基于修改的操作频率，修改的占空比或其组合来获得功率转换器的输出处的电量。 此外，控制器被配置为将在功率转换器的输出处获得的电量和至少一个参数的第二部分的组合传递给负载。 还介绍了转换功率的方法。
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3.发明申请HIGH VOLTAGE DIRECT CURRENT (HVDC) CONVERTER SYSTEM AND METHOD OF OPERATING THE SAME 有权高压直流电（HVDC）转换器系统及其运行方法公开(公告)号：US20140268926A1
公开(公告)日：2014-09-18
申请号：US13826583
申请日：2013-03-14
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Ranjan Kumar Gupta , Nilanjan Ray Chaudhuri , Luis Jose Garces , Rajib Datta
IPC: H02M5/44
CPC classification number: H02M5/44 , H02M1/126 , H02M1/15 , H02M7/7575 , H02M2001/0077 , Y02E60/60
Abstract: A high voltage direct current (HVDC) converter system includes a line commutated converter (LCC) configured to convert a plurality of AC voltages and currents to a regulated DC voltage of one of positive and negative polarity and a DC current transmitted in only one direction. The HVDC converter system also includes a buck converter configured to convert a plurality of AC voltages and currents to a regulated DC voltage of one of positive and negative polarity and a DC current transmitted in one of two directions. The LCC and the buck converter are coupled in parallel to an AC conduit and are coupled in series to a DC conduit. The HVDC converter system further includes a filtering device coupled in parallel to the buck converter through the AC conduit. The filtering device is configured to inject AC current having at least one harmonic frequency into the AC conduit.
Abstract translation: 高压直流（HVDC）转换器系统包括线路整流转换器（LCC），其被配置为将多个AC电压和电流转换成正极性和负极性之一的稳压DC电压以及仅在一个方向上传输的DC电流。 HVDC转换器系统还包括降压转换器，其被配置为将多个AC电压和电流转换成正极性和负极性之一的稳压DC电压以及沿两个方向之一传输的DC电流。 LCC和降压转换器并联耦合到AC导管并且串联耦合到DC导管。 HVDC转换器系统还包括通过AC导管并联耦合到降压转换器的滤波装置。 滤波装置被配置为将具有至少一个谐波频率的AC电流注入到AC导管中。
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公开(公告)号：US20140092661A1
公开(公告)日：2014-04-03
申请号：US13629882
申请日：2012-09-28
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Di Zhang , Luis Jose Garces , Rajib Datta , Ravisekhar Nadimpalli Raju
CPC classification number: H02M7/5152 , H02M3/3376 , H02M7/487 , H02M7/537 , H02M7/53871 , H02M7/7575 , H02M2007/4835 , Y02E60/60
Abstract: A power converter is presented. The power converter includes at least one leg, the at least one leg includes a first string, where the first string includes a plurality of controllable semiconductor switches, a first connecting node, and a second connecting node, and where the first string is operatively coupled across a first bus and a second bus. Furthermore, the at least one leg includes a second string operatively coupled to the first string via the first connecting node and the second connecting node, where the second string includes a plurality of switching units. A method for power conversion is also presented.
Abstract translation: 介绍了一种电源转换器。 所述功率转换器包括至少一个支路，所述至少一个支路包括第一串，其中所述第一串包括多个可控半导体开关，第一连接节点和第二连接节点，并且其中所述第一串可操作地耦合 穿过第一班巴士和第二班车。 此外，所述至少一个支腿包括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的第二串，其中第二串包括多个开关单元。 还提出了一种电源转换方法。
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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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Patent Agency Ranking
公开(公告)号：US09667157B1
公开(公告)日：2017-05-30
申请号：US15140103
申请日：2016-04-27
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Dong Dong , Luis Jose Garces , Mohammed Agamy , Ravisekhar Nadimpalli Raju , Yan Pan
IPC: H02M3/335
CPC classification number: G01R19/175 , H02M1/083 , H02M3/33523 , H02M3/33576 , H02M3/33584 , H02M7/4826 , H02M2001/0058 , H02M2007/4815 , H03K5/1536 , H03K17/166 , Y02B70/1433 , Y02B70/1441 , Y02B70/1491
Abstract: A power converter includes a first bus converter for converting a first direct current (DC) bus voltage into a first high frequency alternating current (AC) voltage and a second bus converter for converting a second high frequency AC voltage into a second DC bus voltage. A resonant circuit couples the first bus converter and the second bus converter. Further, a controller provides switching signals to the first bus converter and the second bus converter to operate the power converter in a soft switching mode. The controller includes a voltage detection circuit connected across at least one switching device of the power converter to detect a device voltage across the at least one switching device and a counter to count a number of hard switching detection pulses of the hard switching pulse signal detector. The controller also includes a calculation module to update the number of hard switching detection pulses of the hard switching instances and to generate a new number of hard switching detection pulses and a comparator to compare the new number of hard switching detection pulses with a threshold value and to provide a control signal if the new number exceeds the threshold value.
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公开(公告)号：US09559611B2
公开(公告)日：2017-01-31
申请号：US13629882
申请日：2012-09-28
Applicant: General Electric Company
Inventor： Di Zhang , Luis Jose Garces , Rajib Datta , Ravisekhar Nadimpalli Raju
CPC classification number: H02M7/5152 , H02M3/3376 , H02M7/487 , H02M7/537 , H02M7/53871 , H02M7/7575 , H02M2007/4835 , Y02E60/60
Abstract: A power converter is presented. The power converter includes at least one leg, the at least one leg includes a first string, where the first string includes a plurality of controllable semiconductor switches, a first connecting node, and a second connecting node, and where the first string is operatively coupled across a first bus and a second bus. Furthermore, the at least one leg includes a second string operatively coupled to the first string via the first connecting node and the second connecting node, where the second string includes a plurality of switching units. A method for power conversion is also presented.
Abstract translation: 介绍了一种电源转换器。 所述功率转换器包括至少一个支路，所述至少一个支路包括第一串，其中所述第一串包括多个可控半导体开关，第一连接节点和第二连接节点，并且其中所述第一串可操作地耦合 穿过第一班巴士和第二班车。 此外，所述至少一个支腿包括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的第二串，其中第二串包括多个开关单元。 还提出了一种电源转换方法。
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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：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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公开(公告)号：US09343897B2
公开(公告)日：2016-05-17
申请号：US14454836
申请日：2014-08-08
Applicant: General Electric Company
Inventor： Luis Jose Garces , Rui Zhou , Ravisekhar Nadimpalli Raju , Satish Prabhakaran , Philip Michael Cioffi
Abstract: A circuit breaker device includes plural bridges conductively coupled parallel to each other between plural terminals that are configured to be conductively coupled with a power source and a load. The bridges include first and second outer bridges each having plural switches and at least an impedance bridge. The switches of the first and second outer bridges are configured to be closed to conduct electric current between the power source and the load and at least one switch in each of the first and second outer bridges are configured to be opened while at least one other switch in each of the first and second outer bridges are configured to remain closed to prevent conduction of the electric current between the power source and the load and to direct the electric current into the impedance bridge.
Abstract translation: 断路器装置包括在构造成与电源和负载导电耦合的多个端子之间彼此并联导电耦合的多个桥。 桥包括每个具有多个开关和至少一个阻抗桥的第一和第二外部桥。 第一外桥和第二外桥的开关被构造为关闭以在电源和负载之间传导电流，并且第一和第二外桥中的每一个中的至少一个开关被配置为打开，而至少一个其它开关 在第一和第二外部桥中的每一个被配置为保持关闭以防止在电源和负载之间的电流的传导并且将电流引导到阻抗桥中。
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