SYSTEMS, METHODS, AND APPARATUSES FOR BALANCING CAPACITOR LOAD
    4.
    发明申请
    SYSTEMS, METHODS, AND APPARATUSES FOR BALANCING CAPACITOR LOAD 审中-公开
    用于平衡电容负载的系统,方法和装置

    公开(公告)号:US20100020470A1

    公开(公告)日:2010-01-28

    申请号:US12179679

    申请日:2008-07-25

    IPC分类号: H01G4/38

    CPC分类号: H01G4/38

    摘要: Systems, methods, and apparatuses for balancing capacitor load are provided. A system includes a plurality of capacitors, a plurality of respective positive connections and a plurality of respective negative connections that connect each of the plurality of capacitors to at least one power source, where each of the plurality of positive connections has an approximately equal length, and each of the plurality of negative connections has an approximately equal length.

    摘要翻译: 提供了平衡电容器负载的系统,方法和设备。 一种系统包括多个电容器,多个相应的正连接和多个相应的负连接,其将多个电容器中的每一个连接到至少一个电源,其中多个正连接中的每一个具有大致相等的长度, 并且多个负连接中的每一个具有大致相等的长度。

    SYSTEMS AND METHODS FOR SUPPRESSING RESONANCES IN POWER CONVERTERS
    5.
    发明申请
    SYSTEMS AND METHODS FOR SUPPRESSING RESONANCES IN POWER CONVERTERS 审中-公开
    用于抑制功率转换器中谐振的系统和方法

    公开(公告)号:US20140177294A1

    公开(公告)日:2014-06-26

    申请号:US14237796

    申请日:2011-08-23

    IPC分类号: H02M5/42

    CPC分类号: H02M5/42 H02M1/14 H02M5/458

    摘要: Systems and methods for suppressing resonances in power converters are provided. A power converter (100) includes an input stage (101) configured to receive alternating current (AC), an output stage (102) configured to output alternating current (AC), a first direct current (DC) bus (106) coupling the input stage (101) to the output stage (102), a second DC bus (108) coupling the input stage (101) to the output stage (102), a first capacitor leg (110) coupling the first DC bus (106) to the second DC bus (108) and a second capacitor leg (112) coupling the first DC bus (106) to the second DC bus (108). The first DC bus (106), the second DC bus (108), the first capacitor leg (110), and the second capacitor leg (112) form a current loop (130) having an effective inductance, and at least one resistor (140,142) configured to suppress a resonance of the power converter (100), wherein the resonance is based at least in part on the effective inductance of the current loop.

    摘要翻译: 提供了用于抑制功率转换器谐振的系统和方法。 功率转换器(100)包括被配置为接收交流电(AC)的输入级(101),被配置为输出交流电(AC)的输出级(102),耦合第 输入级(101)到输出级(102),将输入级(101)耦合到输出级(102)的第二DC总线(108),耦合第一DC总线(106)的第一电容器支脚 到第二DC总线(108)和将第一DC总线(106)耦合到第二DC总线(108)的第二电容器支脚(112)。 第一DC总线(106),第二DC总线(108),第一电容器支脚(110)和第二电容器支脚(112)形成具有有效电感的电流回路(130),以及至少一个电阻器 ,其被配置为抑制所述功率转换器(100)的谐振,其中所述谐振至少部分地基于所述电流环路的有效电感。

    MOTOR FOR A SYNCHRONOUS ELECTRIC MACHINE AND METHOD FOR ROUTING POWER
    6.
    发明申请
    MOTOR FOR A SYNCHRONOUS ELECTRIC MACHINE AND METHOD FOR ROUTING POWER 有权
    用于同步电机的电机和路由功率的方法

    公开(公告)号:US20140035498A1

    公开(公告)日:2014-02-06

    申请号:US13565854

    申请日:2012-08-03

    IPC分类号: H02P27/04

    摘要: A motor for a synchronous electric machine includes a first inverter configured to provide alternating current power at a first plurality of phases. Also included is a second inverter configured to provide alternating current power at a second plurality of phases. Further included is a first stator winding and a second stator winding each in operable communication with the first inverter and the second inverter and configured to operate synchronously at a first phase, a second phase and a third phase. Yet further included is a first interphase transformer for receiving one of the first plurality of phases and one of the second plurality of phases for communicating a pair of simultaneous, matching voltage outputs to the first stator winding and the second stator winding for reducing a stress imposed on a rotor.

    摘要翻译: 一种用于同步电机的电动机包括:第一反相器,被配置为在第一多个相位处提供交流电力。 还包括被配置为在第二多个相位提供交流电力的第二反相器。 还包括第一定子绕组和第二定子绕组,每个定子绕组和第二定子绕组与第一反相器和第二反相器可操作地连通,并被配置为在第一相位,第二相位和第三相位同步地运行。 还包括第一相间变压器,用于接收第一多个相中的一个和第二多个相中的一个,用于将一对同时匹配的电压输出传送到第一定子绕组和第二定子绕组,以减少施加的应力 在转子上。

    SYSTEM AND METHOD FOR INTERFACING VARIABLE SPEED GENERATORS TO A POWER GRID
    7.
    发明申请
    SYSTEM AND METHOD FOR INTERFACING VARIABLE SPEED GENERATORS TO A POWER GRID 审中-公开
    将可变速发电机接入电网的系统和方法

    公开(公告)号:US20140062425A1

    公开(公告)日:2014-03-06

    申请号:US13600788

    申请日:2012-08-31

    IPC分类号: H02P9/48

    摘要: The present subject matter is directed to systems and methods for interfacing variable speed generators to a power distribution grid. A plurality of doubly-fed induction generators (DFIG) are provided and coupled to a common shaft of a prime mover. Each of the plurality of DFIGs provides an electrical power output having an output frequency based on a rotational speed of the common shaft. A converter coupled to each DFIG provides variable excitation signals to its respective DFIG sufficient to adjust its output frequency to conform to a power grid frequency requirement.

    摘要翻译: 本主题涉及将变速发电机与配电网接口的系统和方法。 多个双馈感应发电机(DFIG)被提供并且耦合到原动机的公共轴。 多个DFIG中的每一个提供具有基于公共轴的转速的输出频率的电功率输出。 耦合到每个DFIG的A转换器向其相应的DFIG提供足够的可变激励信号以足以调节其输出频率以符合电网频率要求。

    Methods and apparatus for testing electric power devices
    8.
    发明授权
    Methods and apparatus for testing electric power devices 有权
    电力设备测试方法和装置

    公开(公告)号:US08604822B2

    公开(公告)日:2013-12-10

    申请号:US12956785

    申请日:2010-11-30

    IPC分类号: G01R31/40

    CPC分类号: G01R31/42

    摘要: A method of assembling a testing apparatus for a full-power converter assembly includes coupling an electric power supply apparatus to an electric power grid. The method also includes coupling a direct current (DC) generation apparatus to the electric power supply apparatus. The method further includes coupling an electric power grid simulation device to the DC generation apparatus. The method also includes coupling a full-power converter assembly test connection to the electric power grid simulation device.

    摘要翻译: 一种组装全功率转换器组件的测试装置的方法包括将电力供应装置耦合到电力网。 该方法还包括将直流(DC)产生装置耦合到电力供应装置。 该方法还包括将电网模拟装置耦合到DC发生装置。 该方法还包括将全功率转换器组件测试连接耦合到电力网模拟设备。

    Systems and methods involving variable speed generators
    10.
    发明授权
    Systems and methods involving variable speed generators 有权
    涉及变速发电机的系统和方法

    公开(公告)号:US07466109B1

    公开(公告)日:2008-12-16

    申请号:US12098585

    申请日:2008-04-07

    IPC分类号: H02P9/44

    CPC分类号: H02P9/007

    摘要: An electrical generation system comprising a generator. The generator including, a stator portion, and a rotor portion, and a variable frequency generator (VFG) exciter. The VFG exciter including, a first converter, operative to convert DC current to AC current connected to a DC link and a second converter, operative to convert DC current to AC current connected to the DC link. The system including a first switch operative, when closed, to connect the first converter to the stator portion while the generator is operating in a starting condition, wherein the first switch is open while the generator is operating in a running condition. The system including second switch operative, when closed, to connect the first converter and the second converter in parallel to the rotor portion while the generator is operating in a running condition, wherein the second switch is open while the generator is operating in the starting condition.

    摘要翻译: 一种发电系统,包括发电机。 发电机包括定子部分和转子部分,以及可变频率发生器(VFG)激励器。 VFG激励器包括第一转换器,用于将DC电流转换成连接到DC链路的AC电流和第二转换器,用于将DC电流转换为连接到DC链路的AC电流。 所述系统包括第一开关,当所述第一开关闭合时,所述第一开关在所述发电机起动状态下工作时将所述第一变换器连接到所述定子部分,其中所述第一开关在所述发电机运行时处于运行状态。 所述系统包括第二开关,当闭合时,当所述发电机在运行状态下工作时,所述第二开关在闭合时工作,以将所述第一转换器和所述第二转换器并联连接到所述转子部分,其中所述第二开关在所述发电机起动状态下工作时打开 。