-
公开(公告)号：US09148069B2
公开(公告)日：2015-09-29
申请号：US13480919
申请日：2012-05-25
申请人： Ranjan Kumar Gupta , Rajib Datta , Di Zhang
发明人： Ranjan Kumar Gupta , Rajib Datta , Di Zhang
CPC分类号： H02M7/483 , H02M7/487 , H02M2001/007
摘要： A high voltage, high power multi-level drive structure includes a plurality of neutral-point-piloted (NPP) converter cells stacked together. At least one clamping diode is connected to one or many NPP converter cells to provide a neutral-point-pilot-clamped (NPPC) converter structure. Flying capacitors connected to the NPPC converter structure yield a neutral-point-clamped-flying-capacitor converter cell structure.
摘要翻译： 高电压，高功率多电平驱动结构包括多个堆叠在一起的中性点导频（NPP）转换器单元。 至少一个钳位二极管连接到一个或多个NPP转换器单元，以提供中性点导频钳位（NPPC）转换器结构。 连接到NPPC转换器结构的飞溅电容器产生中性点钳位的跨电容转换器单元结构。
-
公开(公告)号：US20130314957A1
公开(公告)日：2013-11-28
申请号：US13480919
申请日：2012-05-25
申请人： Ranjan Kumar Gupta , Rajib Datta , Di Zhang
发明人： Ranjan Kumar Gupta , Rajib Datta , Di Zhang
CPC分类号： H02M7/483 , H02M7/487 , H02M2001/007
摘要： A high voltage, high power multi-level drive structure includes a plurality of neutral-point-piloted (NPP) converter cells stacked together. At least one clamping diode is connected to one or many NPP converter cell to provide a neutral-point-pilot-clamped (NPPC) converter structure. Flying capacitors connected to the NPPC converter structure yield a neutral-point-clamped-flying-capacitor converter cell structure.
摘要翻译： 高电压，高功率多电平驱动结构包括多个堆叠在一起的中性点导频（NPP）转换器单元。 至少一个钳位二极管连接到一个或多个NPP转换器单元，以提供中性点导频钳位（NPPC）转换器结构。 连接到NPPC转换器结构的飞溅电容器产生中性点钳位的跨电容转换器单元结构。
-
公开(公告)号：US20130313906A1
公开(公告)日：2013-11-28
申请号：US13478310
申请日：2012-05-23
申请人： Ranjan Kumar Gupta , Christof Martin Sihler , Satish Sivarama Gunturi , Stefan Schroeder , Joseph Song Manguelle , Ravisekhar Nadimpalli Raju , Rajib Datta
发明人： Ranjan Kumar Gupta , Christof Martin Sihler , Satish Sivarama Gunturi , Stefan Schroeder , Joseph Song Manguelle , Ravisekhar Nadimpalli Raju , Rajib Datta
CPC分类号： H02M1/00 , Y10T307/469 , Y10T307/858
摘要： A load bypass switch enables continuous power to remote loads in the event of 1) failure of one or more remote loads, or 2) faults within the remote loads, within a dc power system. The bypass switch utilizes the passive components of the dc loads or inverters and therefore reduces overall component count. A black start method for the remote dc system uses the same passives present inside the loads/inverters and simultaneously uses some of the features of the bypass switch. A bypass-module-yard uses multiple bypass switches enabling continuous power to the remote loads in the event of failure of one or more power distribution cables (in-feed to the remote loads) located remotely in the dc system.
摘要翻译： 负载旁路开关可在一个或多个远程负载故障或2）直流电源系统内的远程负载故障的情况下，实现远程负载的连续供电。 旁路开关利用直流负载或逆变器的无源组件，从而减少总体组件数量。 远程直流系统的黑启动方法使用负载/逆变器内部相同的无源器件，同时使用旁路开关的一些特性。 旁路模块码头使用多个旁路开关，在远程在直流系统中的一个或多个配电电缆（进给远程负载）故障时，可以对远程负载进行连续供电。
-
4.发明申请SCALABLE-VOLTAGE CURRENT-LINK POWER ELECTRONIC SYSTEM FOR MULTI-PHASE AC OR DC LOADS 审中-公开用于多相交流或直流负载的可分级电流链路功率电子系统公开(公告)号：US20130343089A1
公开(公告)日：2013-12-26
申请号：US13531629
申请日：2012-06-25
IPC分类号： H02M3/335
CPC分类号： H02M7/4807 , H02M7/487 , H02M7/49 , H02M2001/0074 , H02M2001/0077 , H02M2007/4818 , Y02B70/1441
摘要： An electronics power system includes a plurality of substantially identical power electronic modules. Each power electronic module includes a single-phase DC/AC inverter having an output side. Each power electronic module further includes a medium/high-frequency-isolated DC/DC current-to-voltage converter having an input side. The medium/high-frequency-isolated DC/DC current-to-voltage converter drives the single-phase DC/AC inverter. Each DC/DC converter and its corresponding DC/AC inverter are connected back-to-back sharing a common DC-link. The plurality of power electronics modules is stacked together in series at the input side and in parallel or series/parallel at the output side.
摘要翻译： 电子电力系统包括多个基本相同的电力电子模块。 每个电力电子模块包括具有输出侧的单相DC / AC逆变器。 每个电力电子模块还包括具有输入侧的中/高频隔离DC / DC电流 - 电压转换器。 中/高频隔离DC / DC电流 - 电压转换器驱动单相DC / AC逆变器。 每个DC / DC转换器及其相应的DC / AC逆变器都背对背连接共享一个直流链路。 多个电力电子模块在输入侧串联堆叠在一起，并且在输出侧并联或串联/并联。
-
公开(公告)号：US20130051091A1
公开(公告)日：2013-02-28
申请号：US13219961
申请日：2011-08-29
IPC分类号： H02J3/36
CPC分类号： H02M5/4505 , H02J3/1814 , H02J3/36 , H02M1/4216 , H02M5/451 , H02M7/49 , H02M2007/53876 , Y02B70/126 , Y02E40/18 , Y02E60/60
摘要： A power conversion system includes a power transformer for receiving AC power at a first voltage from an input side and for delivering AC power at a second voltage to an output side. A power converter is also included in the power conversion system wherein the power converter includes an input side converter on the input side and an output side converter on the output side coupled through a plurality of DC links. A converter controller in the power converter provides control signals to the input side converter and the output side converter for regulating an active power and a reactive power flow through the power converter. Each of the input side converters and the output side converters includes at least two power converter transformers coupled between respective power converter bridges coupled to the plurality of DC links and the input side or to the plurality of DC links and the output side.
摘要翻译： 电力转换系统包括电力变压器，用于从输入侧接收来自第一电压的交流电力，并将第二电压的交流电输出到输出侧。 功率转换器还包括在功率转换系统中，其中功率转换器包括输入侧的输入侧转换器和通过多个DC链路耦合的输出侧的输出侧转换器。 功率转换器中的转换器控制器向输入侧转换器和输出侧转换器提供控制信号，用于调节有功功率和通过功率转换器的无功功率流。 每个输入侧转换器和输出侧转换器包括耦合在耦合到多个DC链路和输入侧或多个DC链路和输出侧的各个功率转换器桥之间的至少两个功率转换变换器。
-
公开(公告)号：US20080304300A1
公开(公告)日：2008-12-11
申请号：US11810837
申请日：2007-06-06
申请人： Ravisekhar Nadimpalli Raju , Richard S. Zhang , Rajib Datta , Allen Michael Ritter , Ljubisa Dragoljub Stevanovic
发明人： Ravisekhar Nadimpalli Raju , Richard S. Zhang , Rajib Datta , Allen Michael Ritter , Ljubisa Dragoljub Stevanovic
CPC分类号： H02M7/217 , H02M2001/0074 , H02M2001/009 , Y02B70/1483
摘要： A power conversion system has a three-phase AC input, where each AC input phase is linked to a string of cascaded single-phase AC-DC converters placed in series with a three-phase AC-DC converter. Each single-phase AC-DC converter in one embodiment includes a silicon carbide (SiC) pulse width modulated MOSFET H-bridge that placed in series with the three-phase AC-DC converter that includes a silicon (Si) SCR bridge. The single-phase AC-DC converters and the three-phase AC-DC converter together in one embodiment include a mixed silicon-carbide (SiC) and silicon (Si) device topology.
摘要翻译： 电力转换系统具有三相AC输入，其中每个AC输入相位与串联的三相AC-DC转换器串联的级联单相AC-DC转换器串联。 在一个实施例中，每个单相AC-DC转换器包括与包括硅（Si）SCR桥的三相AC-DC转换器串联放置的碳化硅（SiC）脉宽调制MOSFET H桥。 在一个实施例中，单相AC-DC转换器和三相AC-DC转换器一起包括混合碳化硅（SiC）和硅（Si）器件拓扑。
-
公开(公告)号：US20100133901A1
公开(公告)日：2010-06-03
申请号：US12317306
申请日：2008-12-22
IPC分类号： H02J3/36
CPC分类号： H02M5/458 , H02M7/003 , H02M7/483 , Y10T307/25 , Y10T307/258 , Y10T307/707
摘要： A sub-sea power delivery system includes a plurality of modular power converter building blocks on each of the power source side and the sub-sea load side that are stacked and interconnected to meet site expansion requirements and electrical load topologies. The power delivery system comprises a system DC transmission link/bus, wherein the system DC link is configured to carry HVDC or MVDC power from an onshore utility or topside power source to multiple sub-sea load modules. The stacked modular power converter topology on the sub-sea side of the sub-sea power delivery system is symmetrical with the stacked modular power converter topology on the on-shore/top-side of the sub-sea power delivery system.
摘要翻译： 海底电力输送系统包括在电源侧和海底负载侧的多个模块化功率转换器构建块，其被堆叠和互连以满足现场扩展要求和电负载拓扑。 电力输送系统包括系统DC传输链路/总线，其中系统DC链路被配置为将HVDC或MVDC电力从陆上公用事业或顶层电源运送到多个海底负载模块。 海底电力输送系统的海底侧堆叠的模块化电力转换器拓扑结构与海底电力输送系统的岸上/顶部的堆叠模块化电力转换器拓扑结构是对称的。
-
公开(公告)号：US20090146603A1
公开(公告)日：2009-06-11
申请号：US12074223
申请日：2008-02-29
CPC分类号： H02M7/521 , H02J3/36 , H02M3/158 , H02M7/487 , H02M7/53873 , H02M2001/007 , Y02E60/60
摘要： A system for the transmission of a direct current (DC) at a medium voltage level includes a system DC link configured to carry power from a source to a load module. The load module includes a DC-to-DC voltage step-down converter, a DC-to-AC inverter coupled downstream to the DC-to-DC voltage step-down converter, and a system AC link for carrying power from the load module to a motor system on a load side of the system AC link. The system is effective for delivering power over distances that are greater than 30 kilometers, and for delivery of power from an on-shore to offshore and sub-sea load.
摘要翻译： 用于传输中压电压（DC）的系统包括被配置为将功率从源传送到负载模块的系统DC链路。 负载模块包括DC-DC电压降压转换器，下游耦合到DC-DC电压降压转换器的DC-AC逆变器和用于承载来自负载模块的电力的系统AC链路 到系统AC链路的负载侧的电机系统。 该系统在距离大于30公里的交付电力以及从岸上向海上和海底负载运送电力方面是有效的。
-
公开(公告)号：US20090045782A1
公开(公告)日：2009-02-19
申请号：US11839929
申请日：2007-08-16
申请人： Rajib Datta , Allen Michael Ritter , Haiqing Weng , Luis Jose Garces , Kunlun Chen , Haitao Zhang
发明人： Rajib Datta , Allen Michael Ritter , Haiqing Weng , Luis Jose Garces , Kunlun Chen , Haitao Zhang
摘要： A power conversion system includes two three-level converters, and a phase shifted transformer coupled to the converters.
摘要翻译： 电力转换系统包括两个三电平转换器和耦合到转换器的相移变压器。
-
公开(公告)号：US07327134B1
公开(公告)日：2008-02-05
申请号：US11460064
申请日：2006-07-26
申请人： Haiqing Weng , Kunlun Chen , Rajib Datta , Allen Michael Ritter
发明人： Haiqing Weng , Kunlun Chen , Rajib Datta , Allen Michael Ritter
IPC分类号： G01R15/18
CPC分类号： H01F27/42 , H01F27/34 , H01F2038/006 , H02M7/49
摘要： A method to balance transformer flux among a plurality of transformers is disclosed. The plurality of transformers is connected to a plurality of converters, each transformer having an associated converter. The method comprises determining a reference flux value, measuring an actual flux value for each transformer, and developing a plurality of voltage command signals in relation to a plurality of variance values between the reference flux value and each actual flux value. In response to the voltage command signals being received at a modulator in signal communication with the plurality of converters, the method proceeds by generating a plurality of switching signals to reduce each of the variance values by making available the plurality of switching signals to each of the associated plurality of converters.
摘要翻译： 公开了一种在多个变压器之间平衡变压器通量的方法。 多个变压器连接到多个转换器，每个变压器具有相关联的转换器。 该方法包括确定参考通量值，测量每个变压器的实际通量值，以及相对于参考通量值和每个实际通量值之间的多个方差值来开发多个电压指令信号。 响应于在与多个转换器进行信号通信的调制器处接收的电压指令信号，该方法通过产生多个切换信号来进行，以通过将多个切换信号提供给每个 相关联的多个转换器。
-
-
-
-
-
-
-
-
-
搜索结果
41 条记录 (耗时 0.023 秒)
