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1. 发明申请

US20090045782A1 POWER CONVERSION SYSTEM 审中-公开
标题翻译：电力转换系统
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
IPC分类号： H02P9/00 , F04B17/00 , H02M7/00
CPC分类号： H02M7/487 , H02M7/49
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。

2. 发明授权

US07327134B1 Method and system for transformer control 有权
标题翻译：变压器控制方法及系统
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。

3. 发明申请

US20080024114A1 METHOD AND SYSTEM FOR TRANSFORMER CONTROL 有权
标题翻译：变压器控制方法与系统
公开(公告)号：US20080024114A1
公开(公告)日：2008-01-31
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。

4. 发明授权

US07633775B2 Power conversion system and method 有权
标题翻译：电力转换系统及方法
公开(公告)号：US07633775B2
公开(公告)日：2009-12-15
申请号：US11010147
申请日：2004-12-10
申请人： Rajib Datta , Allen Michael Ritter , Kunlun Chen , John Douglas D'Atre
发明人： Rajib Datta , Allen Michael Ritter , Kunlun Chen , John Douglas D'Atre
IPC分类号： H02M1/12
CPC分类号： H02M7/49
摘要： A power generation system for supplying a resultant output voltage is provided. The system comprises a power converter system. The power converter system comprises at least two power converter bridges, each configured for switching at a low frequency and generating a corresponding converter output voltage including a fundamental voltage component and harmonic components, and at least two power converter transformers. Each power converter bridge is coupled to a primary winding of a corresponding power converter transformer and a secondary winding of one power converter transformer is coupled to a secondary winding of a second power converter transformer. The resultant output voltage comprises a sum of the fundamental voltage components of each converter output voltage.
摘要翻译：提供了用于提供合成输出电压的发电系统。该系统包括功率转换器系统。功率转换器系统包括至少两个功率转换器桥，每个功率转换器桥被配置为以低频切换并产生包括基波电压分量和谐波分量的相应的转换器输出电压，以及至少两个功率转换器变压器。每个功率转换器桥耦合到相应的功率转换器变压器的初级绕组，并且一个功率变换器变压器的次级绕组耦合到第二功率变换器变压器的次级绕组。所得到的输出电压包括每个转换器输出电压的基波电压分量之和。

5. 发明授权

US07359223B2 Power converter system and method 有权
标题翻译：电源转换器系统及方法
公开(公告)号：US07359223B2
公开(公告)日：2008-04-15
申请号：US11095227
申请日：2005-03-30
申请人： Rajib Datta , Kunlun Chen , Haiqing Weng , Ravisekhar Nadimpalli Raju
发明人： Rajib Datta , Kunlun Chen , Haiqing Weng , Ravisekhar Nadimpalli Raju
IPC分类号： H02M7/00
CPC分类号： H02M7/49
摘要： A power converter system for supplying an output voltage is provided. The power converter system is adapted to operate in a normal mode and a fault mode. The system comprises a plurality of bridges and a plurality of transformers. The system further comprises a plurality of dc link capacitors, each coupled across a corresponding bridge. The system also includes a controller adapted for, during the normal mode, switching each bridge with a respective normal phase shift. During the fault mode, the controller is adapted for switching each of the remaining ones of the bridges with a respective adjusted phase shift to generate the output voltage. During the fault mode, at least one of the plurality of bridges is bypassed.
摘要翻译：提供了用于提供输出电压的功率转换器系统。电源转换器系统适用于正常模式和故障模式。该系统包括多个桥和多个变压器。该系统还包括多个直流链路电容器，每个直流链路电容器跨越相应的桥接器耦合。该系统还包括适于在正常模式期间用相应的正相移切换每个桥的控制器。在故障模式期间，控制器适于用相应调整的相移来切换桥接中的每一个，以产生输出电压。在故障模式期间，绕过多个桥中的至少一个。

6. 发明申请

US20050286279A1 Dual mode rectifier, system and method 有权
标题翻译：双模整流器，系统及方法
公开(公告)号：US20050286279A1
公开(公告)日：2005-12-29
申请号：US10874975
申请日：2004-06-23
申请人： Rajib Datta , Kunlun Chen
发明人： Rajib Datta , Kunlun Chen
IPC分类号： H02M7/219 , H02M7/23 , H02P9/48 , H02M5/42
CPC分类号： H02P9/48 , H02M7/219 , H02P2101/15
摘要： A system for generating an output power to a load is provided. The system comprises a generator configured for generating a variable frequency output power and a dual mode rectifier coupled to the generator and configured for being switched between a passive mode and an active mode. The dual mode rectifier comprises a passive rectifier coupled to output terminals of the generator and configured for operating in the passive mode and an active converter coupled to tappings from windings of the generator and configured for operating in the active mode.
摘要翻译：提供了一种用于向负载产生输出功率的系统。该系统包括被配置为产生可变频率输出功率的发生器和耦合到发生器并被配置为在被动模式和活动模式之间切换的双模整流器。双模整流器包括耦合到发生器的输出端并被配置为在无源模式下操作的无源整流器，以及耦合到来自发生器的绕组的触发器的有源转换器，并被配置为在主动模式下操作。

7. 发明授权

US07203078B2 Dual mode rectifier, system and method 有权
标题翻译：双模整流器，系统及方法
公开(公告)号：US07203078B2
公开(公告)日：2007-04-10
申请号：US10874975
申请日：2004-06-23
申请人： Rajib Datta , Kunlun Chen
发明人： Rajib Datta , Kunlun Chen
IPC分类号： H02M5/45 , H02M7/00
CPC分类号： H02P9/48 , H02M7/219 , H02P2101/15
摘要： A system for generating an output power to a load is provided. The system comprises a generator configured for generating a variable frequency output power and a dual mode rectifier coupled to the generator and configured for being switched between a passive mode and an active mode. The dual mode rectifier comprises a passive rectifier coupled to output terminals of the generator and configured for operating in the passive mode and an active converter coupled to tappings from windings of the generator and configured for operating in the active mode.
摘要翻译：提供了一种用于向负载产生输出功率的系统。该系统包括被配置为产生可变频率输出功率的发生器和耦合到发生器并被配置为在被动模式和活动模式之间切换的双模整流器。双模整流器包括耦合到发生器的输出端并被配置为在无源模式下操作的无源整流器，以及耦合到来自发生器的绕组的触发器的有源转换器，并被配置为在主动模式下操作。

8. 发明申请

US20060227578A1 Power converter system and method 有权
标题翻译：电源转换器系统及方法
公开(公告)号：US20060227578A1
公开(公告)日：2006-10-12
申请号：US11095227
申请日：2005-03-30
申请人： Rajib Datta , Kunlun Chen , Haiqing Weng , Ravisekhar Raju
发明人： Rajib Datta , Kunlun Chen , Haiqing Weng , Ravisekhar Raju
IPC分类号： H02J1/10
CPC分类号： H02M7/49
摘要： A power converter system for supplying an output voltage is provided. The power converter system is adapted to operate in a normal mode and a fault mode. The system comprises a plurality of bridges and a plurality of transformers. The system further comprises a plurality of dc link capacitors, each coupled across a corresponding bridge. The system also includes a controller adapted for, during the normal mode, switching each bridge with a respective normal phase shift. During the fault mode, the controller is adapted for switching each of the remaining ones of the bridges with a respective adjusted phase shift to generate the output voltage. During the fault mode, at least one of the plurality of bridges is bypassed.
摘要翻译：提供了用于提供输出电压的功率转换器系统。电源转换器系统适用于正常模式和故障模式。该系统包括多个桥和多个变压器。该系统还包括多个直流链路电容器，每个直流链路电容器跨越相应的桥接器耦合。该系统还包括适于在正常模式期间用相应的正相移切换每个桥的控制器。在故障模式期间，控制器适于用相应调整的相移来切换桥接中的每一个，以产生输出电压。在故障模式期间，绕过多个桥中的至少一个。

9. 发明申请

US20060126242A1 Power conversion system and method 有权
公开(公告)号：US20060126242A1
公开(公告)日：2006-06-15
申请号：US11010147
申请日：2004-12-10
申请人： Rajib Datta , Allen Ritter , Kunlun Chen , John D'Atre
发明人： Rajib Datta , Allen Ritter , Kunlun Chen , John D'Atre
IPC分类号： H02H3/00
CPC分类号： H02M7/49
摘要： A power generation system for supplying a resultant output voltage is provided. The system comprises a power converter system. The power converter system comprises at least two power converter bridges, each configured for switching at a low frequency and generating a corresponding converter output voltage including a fundamental voltage component and harmonic components, and at least two power converter transformers. Each power converter bridge is coupled to a primary winding of a corresponding power converter transformer and a secondary winding of one power converter transformer is coupled to a secondary winding of a second power converter transformer. The resultant output voltage comprises a sum of the fundamental voltage components of each converter output voltage.

10. 发明授权

US09148069B2 High voltage high power multi-level drive structure 有权
标题翻译：高压大功率多级驱动结构
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
IPC分类号： H02M7/483 , H02M7/487 , H02M1/00
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。

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