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1. 发明授权

US08044631B2 Power conversion systems and methods for controlling harmonic distortion 有权
标题翻译：用于控制谐波失真的电力转换系统和方法
公开(公告)号：US08044631B2
公开(公告)日：2011-10-25
申请号：US12345916
申请日：2008-12-30
申请人： Jingya Dai , Yongqiang Lang , Bin Wu , Dewei Xu , Navid R. Zargari
发明人： Jingya Dai , Yongqiang Lang , Bin Wu , Dewei Xu , Navid R. Zargari
IPC分类号： H02P27/04
CPC分类号： H02M7/53873 , H02M2007/53876
摘要： Control systems, methods and power conversion systems are presented for controlling harmonic distortion, in which multi-sampling space vector modulation (SVM) is employed for controlling power converter switching devices, with a reference vector being sampled two or more times during each SVM period to update the SVM dwell times more than once during each SVM cycle.
摘要翻译：提出了用于控制谐波失真的控制系统，方法和功率转换系统，其中采用多采样空间矢量调制（SVM）来控制功率转换器开关装置，其中参考矢量在每个SVM周期期间被采样两次或更多次在每个SVM循环期间多次更新SVM驻留时间。

2. 发明申请

US20100165674A1 POWER CONVERSION SYSTEMS AND METHODS FOR CONTROLLING HARMONIC DISTORTION 有权
标题翻译：用于控制谐波失真的功率转换系统和方法
公开(公告)号：US20100165674A1
公开(公告)日：2010-07-01
申请号：US12345916
申请日：2008-12-30
申请人： Jingya Dai , Yongqiang Lang , Bin Wu , Dewei Xu , Navid R. Zargari
发明人： Jingya Dai , Yongqiang Lang , Bin Wu , Dewei Xu , Navid R. Zargari
IPC分类号： H02M5/45
CPC分类号： H02M7/53873 , H02M2007/53876
摘要： Control systems, methods and power conversion systems are presented for controlling harmonic distortion, in which multi-sampling space vector modulation (SVM) is employed for controlling power converter switching devices, with a reference vector being sampled two or more times during each SVM period to update the SVM dwell times more than once during each SVM cycle.
摘要翻译：提出了用于控制谐波失真的控制系统，方法和功率转换系统，其中采用多采样空间矢量调制（SVM）来控制功率转换器开关装置，其中参考矢量在每个SVM周期期间被采样两次或更多次在每个SVM循环期间多次更新SVM驻留时间。

3. 发明授权

US08698335B2 Low cost current source converters for power generation application 有权
标题翻译：用于发电应用的低成本电流源转换器
公开(公告)号：US08698335B2
公开(公告)日：2014-04-15
申请号：US12819878
申请日：2010-06-21
申请人： Jingya Dai , Navid R. Zargari , Bin Wu , David Dewei Xu , Jiacheng Wang
发明人： Jingya Dai , Navid R. Zargari , Bin Wu , David Dewei Xu , Jiacheng Wang
IPC分类号： F03D9/00 , H02P9/04
CPC分类号： H02M5/458 , H02J3/386 , H02M1/126 , H02M7/06 , H02M7/1626 , Y02E10/725 , Y02E10/763
摘要： A system comprising low cost topology for power converter systems is provided. The system takes advantage of the voltage-boost characteristic of a current source inverter (CSI) and utilizes a PWM CSI as a grid-side converter for power generation systems. Moreover, the generator-side converter employs low-cost devices, such as, but not limited to diode bridge, thyristor bridge, and/or a combination of diodes and thyristors, and accordingly simplifies generator-side converter and control. Further, the system provides a wider range of operation than traditional voltage source converter based topologies that utilize a voltage source inverter (VSI) as the grid-side convertor along with a diode rectifier as the generator-side converter.
摘要翻译：提供了一种包括用于功率转换器系统的低成本拓扑的系统。该系统利用电流源逆变器（CSI）的升压电压特性，并利用PWM CSI作为发电系统的并网转换器。此外，发电机侧转换器采用低成本器件，例如但不限于二极管桥，晶闸管桥和/或二极管和晶闸管的组合，因此简化了发电机侧转换器和控制。此外，与基于电压源逆变器（VSI）作为电网侧转换器以及二极管整流器作为发生器侧转换器的传统的基于电压源转换器的拓扑结构相比，该系统提供了更广泛的操作。

4. 发明申请

US20110310642A1 LOW COST CURRENT SOURCE CONVERTERS FOR POWER GENERATION APPLICATION 有权
标题翻译：用于发电应用的低成本电流源转换器
公开(公告)号：US20110310642A1
公开(公告)日：2011-12-22
申请号：US12819878
申请日：2010-06-21
申请人： Jingya Dai , Navid R. Zargari , Bin Wu , David Dewei Xu , Jiacheng Wang
发明人： Jingya Dai , Navid R. Zargari , Bin Wu , David Dewei Xu , Jiacheng Wang
IPC分类号： H02M5/45
CPC分类号： H02M5/458 , H02J3/386 , H02M1/126 , H02M7/06 , H02M7/1626 , Y02E10/725 , Y02E10/763
摘要： A system comprising low cost topology for power converter systems is provided. The system takes advantage of the voltage-boost characteristic of a current source inverter (CSI) and utilizes a PWM CSI as a grid-side converter for power generation systems. Moreover, the generator-side converter employs low-cost devices, such as, but not limited to diode bridge, thyristor bridge, and/or a combination of diodes and thyristors, and accordingly simplifies generator-side converter and control. Further, the system provides a wider range of operation than traditional voltage source converter based topologies that utilize a voltage source inverter (VSI) as the grid-side convertor along with a diode rectifier as the generator-side converter.
摘要翻译：提供了一种包括用于功率转换器系统的低成本拓扑的系统。该系统利用电流源逆变器（CSI）的升压电压特性，并利用PWM CSI作为发电系统的并网转换器。此外，发电机侧转换器采用低成本器件，例如但不限于二极管桥，晶闸管桥和/或二极管和晶闸管的组合，因此简化了发电机侧转换器和控制。此外，与基于电压源逆变器（VSI）作为电网侧转换器以及二极管整流器作为发生器侧转换器的传统的基于电压源转换器的拓扑结构相比，该系统提供了更广泛的操作。

5. 发明授权

US09559541B2 Modular multilevel converter and charging circuit therefor 有权
标题翻译：模块化多电平转换器及充电电路
公开(公告)号：US09559541B2
公开(公告)日：2017-01-31
申请号：US14597261
申请日：2015-01-15
申请人： Zhongyuan Cheng , Bin Wu , Navid R. Zargari , Kai Tian , David Dewei Xu
发明人： Zhongyuan Cheng , Bin Wu , Navid R. Zargari , Kai Tian , David Dewei Xu
IPC分类号： H02M5/458 , H02M7/06 , H02J7/00 , H02M7/483
CPC分类号： H02J7/0072 , H02J7/0065 , H02M1/36 , H02M7/483 , H02M2007/4835
摘要： Methods and charging apparatus are presented for charging cell capacitors of a multilevel power conversion system, in which an auxiliary charging source is selectively applied across DC bus terminals while one or more selected multilevel converter cells are alternately switched between a first state to bypass the selected cell or cells and a second state to charge the cell capacitor or capacitors of the selected cell via charging current from the auxiliary charging source.
摘要翻译：提出了用于为多电平电力转换系统的电池电容器充电的方法和充电装置，其中辅助充电源被选择性地施加在直流总线端子上，而一个或多个所选择的多电平转换器单元在第一状态之间交替切换以绕过所选择的单元或单元以及第二状态，以通过来自辅助充电源的充电电流对所选择的单元的单元电容器或电容器进行充电。

6. 发明申请

US20160211762A1 MODULAR MULTILEVEL CONVERTER AND CHARGING CIRCUIT THEREFOR 有权
标题翻译：模块化多电平转换器及其充电电路
公开(公告)号：US20160211762A1
公开(公告)日：2016-07-21
申请号：US14597261
申请日：2015-01-15
申请人： Zhongyuan Cheng , Bin Wu , Navid R. Zargari , Kai Tian , David Dewei Xu
发明人： Zhongyuan Cheng , Bin Wu , Navid R. Zargari , Kai Tian , David Dewei Xu
IPC分类号： H02M5/458 , H02M7/06 , H02J7/00 , H02M7/537
CPC分类号： H02J7/0072 , H02J7/0065 , H02M1/36 , H02M7/483 , H02M2007/4835
摘要： Methods and charging apparatus are presented for charging cell capacitors of a multilevel power conversion system, in which an auxiliary charging source is selectively applied across DC bus terminals while one or more selected multilevel converter cells are alternately switched between a first state to bypass the selected cell or cells and a second state to charge the cell capacitor or capacitors of the selected cell via charging current from the auxiliary charging source.
摘要翻译：提出了用于为多电平电力转换系统的电池电容器充电的方法和充电装置，其中辅助充电源被选择性地施加在直流总线端子上，而一个或多个所选择的多电平转换器单元在第一状态之间交替切换以绕过所选择的单元或单元以及第二状态，以通过来自辅助充电源的充电电流对所选择的单元的单元电容器或电容器进行充电。

7. 发明授权

US08587160B2 Grid fault ride-through for current source converter-based wind energy conversion systems 有权
标题翻译：基于电流源转换器的风能转换系统的电网故障穿越
公开(公告)号：US08587160B2
公开(公告)日：2013-11-19
申请号：US12776118
申请日：2010-05-07
申请人： Jingya Dai , David Dewei Xu , Bin Wu , Navid Zargari
发明人： Jingya Dai , David Dewei Xu , Bin Wu , Navid Zargari
IPC分类号： G05F3/02
CPC分类号： H02J3/386 , F05B2270/10711 , H02M5/4505 , Y02E10/763
摘要： Current source converter (CSC) based wind energy power conversion systems (WECS) and methods are presented in which a unified DC link current control scheme is employed to facilitate grid fault ride-through conditions, with a multiple-mode converter control system that combines the power flow control capabilities of the generator-side and grid-side converters, in which transitions between normal operation and fault condition are achieved automatically by monitoring the grid voltage without the need for, or with partial additional ride-through components.
摘要翻译：提出了基于电流源转换器（CSC）的风能电力转换系统（WECS）和方法，其中采用统一的DC链路电流控制方案来促进电网故障穿越条件，多模转换器控制系统将发电机侧和电网侧转换器的功率流控制能力通过监视电网电压而不需要或部分额外的穿越部件自动实现正常运行和故障状态之间的转换。

8. 发明申请

US20110057444A1 GRID FAULT RIDE-THROUGH FOR CURRENT SOURCE CONVERTER-BASED WIND ENERGY CONVERSION SYSTEMS 有权
标题翻译：基于电流转换器的风力转换系统的故障排除
公开(公告)号：US20110057444A1
公开(公告)日：2011-03-10
申请号：US12776118
申请日：2010-05-07
申请人： Jingya Dai , David Dewei Xu , Bin Wu , Navid Zargari
发明人： Jingya Dai , David Dewei Xu , Bin Wu , Navid Zargari
IPC分类号： H02P9/04 , G06F1/26
CPC分类号： H02J3/386 , F05B2270/10711 , H02M5/4505 , Y02E10/763
摘要： Current source converter (CSC) based wind energy power conversion systems (WECS) and methods are presented in which a unified DC link current control scheme is employed to facilitate grid fault ride-through conditions, with a multiple-mode converter control system that combines the power flow control capabilities of the generator-side and grid-side converters, in which transitions between normal operation and fault condition are achieved automatically by monitoring the grid voltage without the need for, or with partial additional ride-through components.
摘要翻译：提出了基于电流源转换器（CSC）的风能电力转换系统（WECS）和方法，其中采用统一的DC链路电流控制方案来促进电网故障穿越条件，多模转换器控制系统将发电机侧和电网侧转换器的功率流控制能力通过监视电网电压而不需要或部分额外的穿越部件自动实现正常运行和故障状态之间的转换。

9. 发明申请

US20140376287A1 MULTILEVEL VOLTAGE SOURCE CONVERTERS AND SYSTEMS 有权
标题翻译：多电压源转换器和系统
公开(公告)号：US20140376287A1
公开(公告)日：2014-12-25
申请号：US13922401
申请日：2013-06-20
申请人： Mehdi Narimani , Bin Wu , Zhongyuan Cheng , Navid R. Zargari
发明人： Mehdi Narimani , Bin Wu , Zhongyuan Cheng , Navid R. Zargari
IPC分类号： H02M3/07
CPC分类号： H02M3/07 , H02M7/483 , H02M7/487 , H02M7/49 , H02M7/5395 , H02M2007/53876
摘要： Nested neutral point clamped (NNPC) multilevel power converter stages and systems are presented, in which the converter stage includes an NPC inverter core circuit with a flying (switched) capacitor nesting circuit, with the switches of the NPC core and the switched capacitor circuit being gated using selected redundant switching states to control the voltage of the switched capacitors to achieve a multilevel output voltage having equally spaced voltage step values. Multiple inverter stages can meet cascaded or connected in various configurations to implement single or multiphase power conversion systems, and higher output voltages can be achieved by forming to converter stages into an H-bridge configuration, and connecting multiple H-bridge stages in series with one another.
摘要翻译：提出了嵌套中性点钳位（NNPC）多电平转换器级和系统，其中转换器级包括具有飞行（开关）电容器嵌套电路的NPC逆变器核心电路，NPC内核和开关电容器电路的开关为门控使用所选择的冗余切换状态来控制开关电容器的电压以实现具有相等间隔的电压阶跃值的多电平输出电压。多个逆变器级可以满足级联或连接在各种配置中以实现单相或多相功率转换系统，并且可以通过将转换器级形成H桥配置并且将多个H桥级串联连接到一起来实现更高的输出电压另一个。

10. 发明授权

US5835364A Harmonic eliminating PWM converter 失效
标题翻译：谐波消除PWM转换器
公开(公告)号：US5835364A
公开(公告)日：1998-11-10
申请号：US873844
申请日：1997-06-12
申请人： Frank A. DeWinter , Navid R. Zargari , Bin Wu , Yuan Xiao
发明人： Frank A. DeWinter , Navid R. Zargari , Bin Wu , Yuan Xiao
IPC分类号： H02M7/19 , H02M1/14
CPC分类号： H02M7/19
摘要： A PWM based converter including a Y-.DELTA., Y--Y transformer (or a .DELTA.--.DELTA., .DELTA.-Y transformer) wherein the Y-.DELTA. portion of the transformer phase shifts input voltage by 30.degree. with respect to the Y--Y portion of the transformer and thereby eliminates many low order supply line harmonics. The rectifier also includes two series connected PWM switching rectifiers, one rectifier receiving input voltages from the Y--Y portion of the transformer and the other rectifier receiving input voltages from the Y-.DELTA. portion of the transformer, and a controller for controlling the first and second rectifiers so as to eliminate low order harmonics on the supply lines that are not eliminated by the transformer. A capacitive bank is required between each rectifier and the transformer.
摘要翻译：一种基于PWM的转换器，包括Y-DELTA，YY变压器（或DELTA-DELTA，DELTA-Y变压器），其中变压器的Y-DELTA部分将输入电压相对于变压器的YY部分移位30°，从而消除了许多低阶电源线谐波。整流器还包括两个串联的PWM开关整流器，一个整流器接收来自变压器的YY部分的输入电压，另一个整流器接收来自变压器的Y-DELTA部分的输入电压，以及用于控制第一和第二整流器以消除电源线上未被变压器消除的低次谐波。每个整流器和变压器之间需要一个电容组。

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