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1. 发明授权

US09257929B2 Excitation control circuit, control method and electrically excited wind power system having the same 有权
标题翻译：励磁控制电路，控制方法和电激励风力发电系统
公开(公告)号：US09257929B2
公开(公告)日：2016-02-09
申请号：US13619697
申请日：2012-09-14
申请人： Chang-Yong Wang , Yan-Song Lu , Jun Chen , Xue-Xiao Luo , Jun-Sheng Mu
发明人： Chang-Yong Wang , Yan-Song Lu , Jun Chen , Xue-Xiao Luo , Jun-Sheng Mu
IPC分类号： H02M5/42 , H02P9/10 , H02J3/38 , H02M7/04 , H02P101/15
CPC分类号： H02P9/102 , H02J3/386 , H02M7/04 , H02P2101/15 , Y02E10/763
摘要： The present invention provides an excitation control circuit, a control method using the same and an electrically excited wind power system having the same. The excitation control circuit comprises at least one converter and at least one AC/DC conversion module. The converter is located between an AC electric grid and a wind power generator, so as to convert AC power generated by the wind power generator into AC power corresponding to the AC electric grid. The input side of the AC/DC conversion module is electrically connected between the converter and the wind power generator, and the output side is coupled to an excitation device. The AC/DC conversion module is used to convert the AC power from the wind power generator into a DC voltage, and provides an excitation current for the wind power generator using the DC voltage.
摘要翻译：本发明提供一种励磁控制电路，使用该励磁控制电路的控制方法和具有该励磁控制电路的电励磁风力发电系统。激励控制电路包括至少一个转换器和至少一个AC / DC转换模块。转换器位于交流电网和风力发电机之间，以将由风力发电机产生的交流电转换为对应于交流电网的交流电力。 AC / DC转换模块的输入侧电连接在转换器和风力发电机之间，输出侧耦合到励磁装置。 AC / DC转换模块用于将风力发电机的交流电转换为直流电压，并使用直流电压为风力发电机提供励磁电流。

2. 发明授权

US08922173B2 DC chopper and DC chopping method for doubly fed induction generator system 有权
标题翻译：双馈感应发电机系统的直流斩波器和直流斩波方法
公开(公告)号：US08922173B2
公开(公告)日：2014-12-30
申请号：US13532356
申请日：2012-06-25
申请人： Chang-Yong Wang , Jian-Fei Zheng , Fei Lu , Jian-Ping Ying
发明人： Chang-Yong Wang , Jian-Fei Zheng , Fei Lu , Jian-Ping Ying
IPC分类号： H02P11/00 , H02H7/06 , H02P6/00
CPC分类号： H02P6/00
摘要： A DC chopper comprising a control unit and a power circuit and a DC chopping method for a DFIG (doubly fed induction generator) system are provided. The input terminal of the control unit is coupled to a DC capacitor of a converter to detect a DC voltage. The power circuit includes input terminals, an overvoltage protection module, a rectifier module and output terminals. The overvoltage protection module comprises at least one discharge unit formed from a discharge resistor and a switch element, and the rectifier module is coupled in parallel to the overvoltage protection module. When a grid voltage drops, the control unit outputs a corresponding control signal to drive the switch element to be ON or OFF, and the output terminal of the power circuit absorbs a portion of rotor inrush current, so as to impose over-current protection.
摘要翻译：提供了包括控制单元和电源电路以及用于DFIG（双馈感应发电机）系统的直流斩波方法的直流斩波器。控制单元的输入端耦合到转换器的直流电容器，以检测直流电压。电源电路包括输入端子，过压保护模块，整流模块和输出端子。过电压保护模块包括由放电电阻器和开关元件形成的至少一个放电单元，并且整流器模块并联耦合到过电压保护模块。当电网电压下降时，控制单元输出相应的控制信号以驱动开关元件导通或关断，并且电源电路的输出端吸收一部分转子浪涌电流，从而施加过电流保护。

3. 发明申请

US20130272038A1 EXCITATION CONTROL CIRCUIT, CONTROL METHOD AND ELECTRICALLY EXCITED WIND POWER SYSTEM HAVING THE SAME 有权
标题翻译：励磁控制电路，控制方法及具有相同功能的电动电力系统
公开(公告)号：US20130272038A1
公开(公告)日：2013-10-17
申请号：US13619697
申请日：2012-09-14
申请人： Chang-Yong WANG , Yan-Song LU , Jun CHEN , Xue-Xiao LUO , Jun-Sheng MU
发明人： Chang-Yong WANG , Yan-Song LU , Jun CHEN , Xue-Xiao LUO , Jun-Sheng MU
IPC分类号： H02M5/42
CPC分类号： H02P9/102 , H02J3/386 , H02M7/04 , H02P2101/15 , Y02E10/763
摘要： The present invention provides an excitation control circuit, a control method using the same and an electrically excited wind power system having the same. The excitation control circuit comprises at least one converter and at least one AC/DC conversion module. The converter is located between an AC electric grid and a wind power generator, so as to convert AC power generated by the wind power generator into AC power corresponding to the AC electric grid. The input side of the AC/DC conversion module is electrically connected between the converter and the wind power generator, and the output side is coupled to an excitation device. The AC/DC conversion module is used to convert the AC power from the wind power generator into a DC voltage, and provides an excitation current for the wind power generator using the DC voltage.
摘要翻译：本发明提供一种励磁控制电路，使用该励磁控制电路的控制方法和具有该励磁控制电路的电励磁风力发电系统。激励控制电路包括至少一个转换器和至少一个AC / DC转换模块。转换器位于交流电网和风力发电机之间，以将由风力发电机产生的交流电转换为对应于交流电网的交流电力。 AC / DC转换模块的输入侧电连接在转换器和风力发电机之间，输出侧耦合到励磁装置。 AC / DC转换模块用于将风力发电机的交流电转换为直流电压，并使用直流电压为风力发电机提供励磁电流。

4. 发明申请

US20130182466A1 EXCITATION CONTROL CIRCUIT AND ELECTRICALLY EXCITED WIND POWER SYSTEM HAVING THE SAME 有权
标题翻译：激励控制电路和具有相同功能的电动风力发电系统
公开(公告)号：US20130182466A1
公开(公告)日：2013-07-18
申请号：US13612857
申请日：2012-09-13
申请人： Yan-Song LU , Chang-Yong WANG , Jun CHEN , Xue-Xiao LUO , Jun-Sheng MU
发明人： Yan-Song LU , Chang-Yong WANG , Jun CHEN , Xue-Xiao LUO , Jun-Sheng MU
IPC分类号： H02M5/40
CPC分类号： H02J3/386 , H02P9/305 , H02P2101/15 , Y02E10/763
摘要： The present invention provides an excitation control circuit and the electrically excited wind power system having the same. The excitation control circuit includes a plurality of full-power converters, each of which has a generator-side converter and a grid-side converter; a DC excitation module including a plurality of DC-DC converters; and a control module, controlling or switching any DC-DC converter working normally, and controlling excitation switch turning ON or turning OFF.
摘要翻译：本发明提供一种励磁控制电路和具有该励磁控制电路的电励磁风力发电系统。励磁控制电路包括多个全功率转换器，每个全功率转换器具有发电机侧转换器和电网侧转换器; DC激励模块，包括多个DC-DC转换器; 以及控制模块，控制或切换正常工作的任何DC-DC转换器，并控制激励开关导通或关闭。

5. 发明申请

US20130182465A1 WIND POWER CONVERTER STRUCTURE AND WIND POWER GENERATION SYSTEM INCLUDING THE SAME 有权
标题翻译：风力发电机结构与风力发电系统相结合
公开(公告)号：US20130182465A1
公开(公告)日：2013-07-18
申请号：US13611603
申请日：2012-09-12
申请人： Chang-Yong Wang , Yan-Song Lu , Shu-Sun Qu
发明人： Chang-Yong Wang , Yan-Song Lu , Shu-Sun Qu
IPC分类号： H02M5/02
CPC分类号： H02P9/007 , H02J3/386 , Y02E10/763
摘要： A wind power converter structure and a wind power generation system including the converter structure are provided. The converter structure comprises a plurality of generator-side converters arranged in a nacelle located on a top part of the tower; a plurality of grid-side converters arranged on a bottom part of the tower or outside the tower, wherein a DC input side of the grid-side converter is coupled to a DC output side of the generator-side converter; at least one DC bus connected between the generator-side converter and the grid-side converter; and an isolation transformer of which a primary side is coupled to the AC output side of the grid-side converter, wherein a secondary side of the isolation transformer is coupled to a power grid.
摘要翻译：提供了一种风力发电变换器结构和包括该转换器结构的风力发电系统。转换器结构包括布置在位于塔顶部的机舱中的多个发电机侧转换器; 多个电网侧转换器，布置在塔的底部或塔外部，其中，电网侧转换器的直流输入侧耦合到发电机侧转换器的直流输出侧; 连接在发电机侧转换器和电网侧转换器之间的至少一个DC总线; 以及隔离变压器，其初级侧耦合到所述电网侧转换器的AC输出侧，其中所述隔离变压器的次级侧耦合到电网。

6. 发明授权

US09007788B2 Excitation control circuit and electrically excited wind power system having the same 有权
标题翻译：励磁控制电路和具有相同功能的电励磁风力发电系统
公开(公告)号：US09007788B2
公开(公告)日：2015-04-14
申请号：US13612857
申请日：2012-09-13
申请人： Yan-Song Lu , Chang-Yong Wang , Jun Chen , Xue-Xiao Luo , Jun-Sheng Mu
发明人： Yan-Song Lu , Chang-Yong Wang , Jun Chen , Xue-Xiao Luo , Jun-Sheng Mu
IPC分类号： H02M7/53 , H02J3/38 , H02P9/30
CPC分类号： H02J3/386 , H02P9/305 , H02P2101/15 , Y02E10/763
摘要： The present invention provides an excitation control circuit and the electrically excited wind power system having the same. The excitation control circuit includes a plurality of full-power converters, each of which has a generator-side converter and a grid-side converter; a DC excitation module including a plurality of DC-DC converters; and a control module, controlling or switching any DC-DC converter working normally, and controlling excitation switch turning ON or turning OFF.
摘要翻译：本发明提供一种励磁控制电路和具有该励磁控制电路的电励磁风力发电系统。励磁控制电路包括多个全功率转换器，每个全功率转换器具有发电机侧转换器和电网侧转换器; DC激励模块，包括多个DC-DC转换器; 以及控制模块，控制或切换正常工作的任何DC-DC转换器，并控制激励开关导通或关闭。

7. 发明授权

US08823190B2 Wind power converter structure and wind power generation system including the same 有权
标题翻译：风电变流器结构与风力发电系统相同
公开(公告)号：US08823190B2
公开(公告)日：2014-09-02
申请号：US13611603
申请日：2012-09-12
申请人： Chang-Yong Wang , Yan-Song Lu , Shu-Sun Qu
发明人： Chang-Yong Wang , Yan-Song Lu , Shu-Sun Qu
IPC分类号： H02J3/38
CPC分类号： H02P9/007 , H02J3/386 , Y02E10/763
摘要： A wind power converter structure and a wind power generation system including the converter structure are provided. The converter structure includes a plurality of generator-side converters arranged in a nacelle located on a top part of the tower; a plurality of grid-side converters arranged on a bottom part of the tower or outside the tower, wherein a DC input side of the grid-side converter is coupled to a DC output side of the generator-side converter; at least one DC bus connected between the generator-side converter and the grid-side converter; and an isolation transformer of which a primary side is coupled to the AC output side of the grid-side converter, wherein a secondary side of the isolation transformer is coupled to a power grid.
摘要翻译：提供了一种风力发电变换器结构和包括该转换器结构的风力发电系统。转换器结构包括布置在位于塔架顶部的机舱中的多个发电机侧转换器; 多个电网侧转换器，布置在塔的底部或塔外部，其中，电网侧转换器的直流输入侧耦合到发电机侧转换器的直流输出侧; 连接在发电机侧转换器和电网侧转换器之间的至少一个DC总线; 以及隔离变压器，其初级侧耦合到所述电网侧转换器的AC输出侧，其中所述隔离变压器的次级侧耦合到电网。

8. 发明授权

US08780593B2 Power compensation apparatus and method for renewable energy system 有权
标题翻译：可再生能源系统功率补偿装置及方法
公开(公告)号：US08780593B2
公开(公告)日：2014-07-15
申请号：US13324434
申请日：2011-12-13
申请人： Chang-Yong Wang , Qing Chen
发明人： Chang-Yong Wang , Qing Chen
IPC分类号： H02M7/5387 , H02M7/797
CPC分类号： H02M7/5387 , H02J3/16 , H02J3/1807 , H02M1/42 , H02M7/487 , Y02B70/12 , Y02E40/34
摘要： A power compensation apparatus for a renewable energy system includes a plurality of converter modules positioned between any two phases of a three-phase AC electrical grid, each converter module including a plurality of inverter circuits connected in series. Each inverter circuit includes an energy storage unit for providing a direct current (DC) voltage; a capacitor connected to the energy storage unit; and an H-bridge circuit converting the DC voltage into an alternating current (AC) voltage. The converter modules perform reactive power compensation and active power regulation on the electrical grid in a delta connection. A plurality of converter modules are respectively positioned between any two phases of the electrical grid in a delta connection, so as to keep the voltage of the electrical grid continuously stable when the voltage of the electrical grid fluctuates, and also compensate load current when system load is not balanced.
摘要翻译：用于可再生能源系统的功率补偿装置包括位于三相交流电网的任何两相之间的多个转换器模块，每个转换器模块包括串联连接的多个逆变器电路。每个逆变器电路包括用于提供直流（DC）电压的能量存储单元; 连接到能量存储单元的电容器; 以及将DC电压转换成交流（AC）电压的H桥电路。转换器模块在三角形连接中对电网进行无功功率补偿和有功功率调节。多个转换器模块分别位于三角形连接中的电网的任何两相之间，以便当电网的电压波动时使电网的电压持续稳定，并且还在系统负载时补偿负载电流不平衡

9. 发明授权

US09166491B2 Converter system for limiting circulating current 有权
标题翻译：用于限制循环电流的转换器系统
公开(公告)号：US09166491B2
公开(公告)日：2015-10-20
申请号：US13843975
申请日：2013-03-15
申请人： Chang-Yong Wang , Yan-Song Lu , Li Cai , Jun Chen , Teng Xu
发明人： Chang-Yong Wang , Yan-Song Lu , Li Cai , Jun Chen , Teng Xu
IPC分类号： H02M7/08 , H02M5/02 , H02M5/458 , H02M7/493
CPC分类号： H02M5/02 , H02M5/458 , H02M7/493
摘要： A converter system includes a first converter, a second converter, and a first inter-phase transformer. The first converter is electrically connected to the second converter in parallel between a first input terminal parallel end and a first output terminal parallel end. The first inter-phase transformer is disposed at the first input side parallel terminal or the first output side parallel terminal, and the first inter-phase transformer is operable to restrain a circulating current generated by the first converter and the second converter.
摘要翻译： A转换器系统包括第一转换器，第二转换器和第一相间变压器。第一转换器在第一输入端平行端和第一输出端并联端之间并联地电连接到第二转换器。第一相间变压器设置在第一输入侧并联端或第一输出侧并联端，第一相间变压器可操作地抑制由第一变换器和第二变换器产生的循环电流。

10. 发明授权

US08842453B2 Converter system and control method thereof 有权
标题翻译：转换器系统及其控制方法
公开(公告)号：US08842453B2
公开(公告)日：2014-09-23
申请号：US13619573
申请日：2012-09-14
申请人： Li Cai , Liang Cao , Chang-Yong Wang
发明人： Li Cai , Liang Cao , Chang-Yong Wang
IPC分类号： H02J1/10
CPC分类号： H02M5/4585 , H02J3/386 , H02M7/493 , H02P21/22 , H02P2101/15 , Y02E10/763
摘要： A control method of a converter system includes: sampling a current of each three-phase winding to obtain a real-time current of each converter; obtaining a mean current by averaging the real-time current of each secondary converter and the real-time current of the primary converter, and transferring the mean current to each secondary converter; obtaining the differential-mode current corresponding to each secondary converter according to the mean current and the real-time current of each secondary converter; performing a circulation current control on the mean current and the differential-mode current of each secondary converter based on a d-q coordinate system to generate a mean-current conditioning signal and a differential-mode current conditioning signal, thereby controlling each secondary converter; and obtaining a sum of the differential-mode current conditioning signal of the secondary converters and negating the sum to obtain a differential-mode current conditioning signal of the primary converter, thereby controlling the primary converter.
摘要翻译：转换器系统的控制方法包括：对每个三相绕组的电流进行采样以获得每个转换器的实时电流; 通过平均每个次级转换器的实时电流和初级转换器的实时电流来获得平均电流，并将平均电流传送到每个次级转换器; 根据每个次级转换器的平均电流和实时电流获得与每个次级转换器相对应的差模电流; 基于d-q坐标系对每个次级转换器的平均电流和差模电流执行循环电流控制，以产生平均电流调节信号和差模电流调节信号，从而控制每个次级转换器; 并且获得二次转换器的差模电流调节信号的和，并且否定该和以获得初级转换器的差模电流调节信号，从而控制一次转换器。

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