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公开(公告)号：US07633775B2
公开(公告)日：2009-12-15
申请号：US11010147
申请日：2004-12-10
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。
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公开(公告)号：US08736207B2
公开(公告)日：2014-05-27
申请号：US12983574
申请日：2011-01-03
CPC分类号： H02M7/53873 , H02M1/40 , H02P27/06 , H02P27/10 , H02P27/12
摘要： A method and system for a commutation control circuit are provided. The system includes an integrating voltage counter electrically coupled to an electrical power bus, wherein the integrating voltage counter is configured to integrate over time a voltage signal received from the power bus and to generate a trigger signal when the integrated voltage signal equals a predetermined count. The system also includes a plurality of transistor pairs configured to receive a trigger signal generated by the integrating voltage counter and electrically coupled to respective windings of a motor.
摘要翻译： 提供了一种用于换向控制电路的方法和系统。 该系统包括电耦合到电力总线的积分电压计数器，其中积分电压计数器被配置为随着时间积分从电力总线接收的电压信号并且当积分电压信号等于预定计数时产生触发信号。 该系统还包括多个晶体管对，其被配置为接收由积分电压计数器产生的触发信号并电耦合到电动机的相应绕组。
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公开(公告)号：US20120169259A1
公开(公告)日：2012-07-05
申请号：US12983574
申请日：2011-01-03
IPC分类号： H02P6/14
CPC分类号： H02M7/53873 , H02M1/40 , H02P27/06 , H02P27/10 , H02P27/12
摘要： A method and system for a commutation control circuit are provided. The system includes an integrating voltage counter electrically coupled to an electrical power bus, wherein the integrating voltage counter is configured to integrate over time a voltage signal received from the power bus and to generate a trigger signal when the integrated voltage signal equals a predetermined count. The system also includes a plurality of transistor pairs configured to receive a trigger signal generated by the integrating voltage counter and electrically coupled to respective windings of a motor.
摘要翻译： 提供了一种用于换向控制电路的方法和系统。 该系统包括电耦合到电力总线的积分电压计数器，其中积分电压计数器被配置为随着时间积分从电力总线接收的电压信号并且当积分电压信号等于预定计数时产生触发信号。 该系统还包括多个晶体管对，其被配置为接收由积分电压计数器产生的触发信号并电耦合到电动机的相应绕组。
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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。
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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。
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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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7.发明授权Systems and methods for balancing of DC link in three level PWM power conversion equipment 有权三电平PWM电力转换设备中直流母线平衡的系统和方法公开(公告)号：US07528505B2
公开(公告)日：2009-05-05
申请号：US11535954
申请日：2006-09-27
IPC分类号： H02J1/00
CPC分类号： H02M7/219 , H02M2001/123 , Y10T307/707
摘要： A power converting apparatus and method providing for the addition of a fourth power connection wire to the neutral point of the normal three phase load circuit. This allows delivery of combined current from the center of the DC link voltage to load. The added control enables a third harmonic injection to flow and allows for increased power rating per peak amp handled by the conversion system. Limiting of faults to the positive half versus the negative half of the DC system allows for more robust behavior when encountering these fault conditions.
摘要翻译： 一种电力转换装置和方法，用于向正常三相负载电路的中性点添加第四电力连接线。 这允许将组合的电流从DC链路电压的中心传递到负载。 添加的控制使三次谐波注入流动，并允许由转换系统处理的每个峰值放大器的额定功率增加。 将故障限制在直流系统的正半部分与负半部分之间允许在遇到这些故障条件时具有更强大的性能。
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公开(公告)号：US07239036B2
公开(公告)日：2007-07-03
申请号：US11192840
申请日：2005-07-29
申请人： John Douglas D'Atre , Anthony Michael Klodowski , Allen Michael Ritter , David Smith , Robert Gregory Wagoner , Luis Jose Garces , Henning Luetze
发明人： John Douglas D'Atre , Anthony Michael Klodowski , Allen Michael Ritter , David Smith , Robert Gregory Wagoner , Luis Jose Garces , Henning Luetze
IPC分类号： H02P9/04
CPC分类号： F03D7/0272 , F03D7/028 , F03D9/25 , F03D9/255 , F05B2220/7062 , F05B2260/80 , F05B2270/1011 , H02P9/007 , H02P2101/15 , Y02E10/723 , Y02E10/725
摘要： A system and method for power control in wind turbines are provided. The method includes switching a plurality of switching devices in a power conversion component of the wind turbine system in a normal switching mode to provide power flow through the power conversion component. The method further includes switching the plurality of switches devices in the power conversion component of the wind turbine system in a short circuit switching mode to prevent power flow through the power conversion component.
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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。
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10.发明申请SYSTEMS AND METHODS FOR BALANCING OF DC LINK IN THREE LEVEL PWM POWER CONVERSION EQUIPMENT 有权直流链路在三电平PWM功率转换设备中的平衡的系统和方法公开(公告)号：US20080074907A1
公开(公告)日：2008-03-27
申请号：US11535954
申请日：2006-09-27
IPC分类号： H02M1/14
CPC分类号： H02M7/219 , H02M2001/123 , Y10T307/707
摘要： A power converting apparatus and method providing for the addition of a fourth power connection wire to the neutral point of the normal three phase load circuit. This allows delivery of combined current from the center of the DC link voltage to load. The added control enables a third harmonic injection to flow and allows for increased power rating per peak amp handled by the conversion system. Limiting of faults to the positive half versus the negative half of the DC system allows for more robust behavior when encountering these fault conditions.
摘要翻译： 一种电力转换装置和方法，用于向正常三相负载电路的中性点添加第四电力连接线。 这允许将组合的电流从DC链路电压的中心传递到负载。 添加的控制使三次谐波注入流动，并允许由转换系统处理的每个峰值放大器的额定功率增加。 将故障限制在直流系统的正半部分与负半部分之间允许在遇到这些故障条件时具有更强大的性能。
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