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21. 发明申请

US20090212564A1 Method and apparatus for assembling electrical machines 有权
标题翻译：电机组装方法及装置
公开(公告)号：US20090212564A1
公开(公告)日：2009-08-27
申请号：US12072536
申请日：2008-02-26
申请人： Wenqiang Yang , Zhigang Lu , Anthony Michael Klodowski , Ralph Teichmann , Changyong Wang , Haiqing Weng , Xiaoming Yuan
发明人： Wenqiang Yang , Zhigang Lu , Anthony Michael Klodowski , Ralph Teichmann , Changyong Wang , Haiqing Weng , Xiaoming Yuan
IPC分类号： H02P9/00 , G01B7/00
CPC分类号： H02P9/009 , H02P21/18 , H02P2101/15
摘要： A method of assembling an electrical machine includes programming at least one processor with a stator flux vector estimation scheme. The electrical machine has a stator at least partially extending around a rotor. The electrical machine is electrically coupled to an electric power system. The electric power system transmits at least one phase of electric power to and from the electrical machine with at least partial power conversion. The stator flux vector estimation scheme is programmed to generate at least one stator back-electromagnetic force (back-EMF) signal and to generate at least one stator flux vector signal using the at least one stator back-EMF signal. The at least one stator flux vector signal at least partially represents an estimated rotor position. The method also includes coupling at least one output device in data communication with the at least one processor.
摘要翻译：一种组装电机的方法包括使用定子通量矢量估计方案对至少一个处理器进行编程。电机具有至少部分地围绕转子延伸的定子。电机电耦合到电力系统。电力系统以至少部分功率转换将至少一个电力相向电机传送到电机。定子通量矢量估计方案被编程为产生至少一个定子反电磁力（反电动势）信号，并使用至少一个定子反电动势信号产生至少一个定子通量矢量信号。至少一个定子通量矢量信号至少部分地表示估计的转子位置。该方法还包括将数据通信中的至少一个输出设备与至少一个处理器相耦合。

22. 发明申请

US20090003020A1 Cross current control for power converter system 有权
标题翻译：电源转换器系统的交流电流控制
公开(公告)号：US20090003020A1
公开(公告)日：2009-01-01
申请号：US11823714
申请日：2007-06-27
申请人： Richard S. Zhang , Changyong Wang , Zhuohui Tan , Haiqing Weng
发明人： Richard S. Zhang , Changyong Wang , Zhuohui Tan , Haiqing Weng
IPC分类号： H02J3/00
CPC分类号： H02M5/4585 , H02M1/32 , H02M7/17 , H02M7/493 , H02M2001/123
摘要： A system and method for controlling cross current in an interleaved power converter system having a plurality of converter threads coupled in parallel includes collecting a feedback current from each thread and obtaining a normal current and a differential mode current for each thread, based on its respective feedback current. The normal current of each thread is regulated to a commanded thread normal current value via a respective normal current control loop based on d-q rotating frame parameters. A differential mode cross current of each thread is regulated to zero via a respective differential mode cross current control loop based on d-q rotating frame parameters; while a differential mode cross current DC offset of each thread is regulated to zero via a respective differential mode cross current control loop based on stationary frame parameters.
摘要翻译：一种用于控制具有并联耦合的多个转换器线程的交错电力转换器系统中的交叉电流的系统和方法包括：收集来自每个线程的反馈电流，并且基于其各自的反馈获得每个线程的正常电流和差模电流当前。基于d-q旋转帧参数，通过相应的正常电流控制回路将每个线程的正常电流调节到指令线程的正常电流值。通过基于d-q旋转帧参数的相应的差模交叉电流控制回路将每个线程的差模交叉电流调节为零; 而每个线程的差模交叉电流DC偏移通过基于固定帧参数的相应差模交叉电流控制回路调节为零。

23. 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。

24. 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。

25. 发明授权

US07852643B2 Cross current control for power converter system 有权
标题翻译：电源转换器系统的交流电流控制
公开(公告)号：US07852643B2
公开(公告)日：2010-12-14
申请号：US11823714
申请日：2007-06-27
申请人： Richard S. Zhang , Changyong Wang , Zhuohui Tan , Haiqing Weng
发明人： Richard S. Zhang , Changyong Wang , Zhuohui Tan , Haiqing Weng
IPC分类号： H02J1/10
CPC分类号： H02M5/4585 , H02M1/32 , H02M7/17 , H02M7/493 , H02M2001/123
摘要： A system and method for controlling cross current in an interleaved power converter system having a plurality of converter threads coupled in parallel includes collecting a feedback current from each thread and obtaining a normal current and a differential mode current for each thread, based on its respective feedback current. The normal current of each thread is regulated to a commanded thread normal current value via a respective normal current control loop based on d-q rotating frame parameters. A differential mode cross current of each thread is regulated to zero via a respective differential mode cross current control loop based on d-q rotating frame parameters; while a differential mode cross current DC offset of each thread is regulated to zero via a respective differential mode cross current control loop based on stationary frame parameters.
摘要翻译：一种用于控制具有并联耦合的多个转换器线程的交错电力转换器系统中的交叉电流的系统和方法包括：收集来自每个线程的反馈电流，并且基于其各自的反馈获得每个线程的正常电流和差模电流当前。基于d-q旋转帧参数，通过相应的正常电流控制回路将每个线程的正常电流调节到指令线程的正常电流值。通过基于d-q旋转帧参数的相应的差模交叉电流控制回路将每个线程的差模交叉电流调节为零; 而每个线程的差模交叉电流DC偏移通过基于固定帧参数的相应差模交叉电流控制回路调节为零。

26. 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。

27. 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。

28. 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。

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