Power converter and method of operation
    1.
    发明授权
    Power converter and method of operation 有权
    电源转换器及操作方法

    公开(公告)号:US09369035B2

    公开(公告)日:2016-06-14

    申请号:US13024940

    申请日:2011-02-10

    IPC分类号: H02H9/00 H02M1/32 H02H7/12

    摘要: A power converter includes a first phase leg including a first di/dt reactor and a first control section, the first di/dt reactor and the first control section being coupled between an active line and a neutral line. The power converter also includes a first current crowbar coupled between the active line and the neutral and a controller coupled to the first di/dt reactor, the control section and the first current crowbar and configured to activate the current crowbar based on a voltage across the first di/dt reactor.

    摘要翻译: 功率转换器包括包括第一di / dt电抗器和第一控制部分的第一相支路,第一di / dt电抗器和第一控制部分耦合在有源线路和中线之间。 功率转换器还包括耦合在有源线路和中线线圈之间的第一电流撬棒以及耦合到第一di / dt电抗器,控制部分和第一电流撬棒的控制器,并且被配置为基于 第一个di / dt反应器。

    POWER CONVERTER AND METHOD OF OPERATION
    2.
    发明申请
    POWER CONVERTER AND METHOD OF OPERATION 有权
    电力变换器及其运行方法

    公开(公告)号:US20120206841A1

    公开(公告)日:2012-08-16

    申请号:US13024940

    申请日:2011-02-10

    IPC分类号: H02H9/02

    摘要: A power converter includes a first phase leg including a first di/dt reactor and a first control section, the first di/dt reactor and the first control section being coupled between an active line and a neutral line. The power converter also includes a first current crowbar coupled between the active line and the neutral and a controller coupled to the first di/dt reactor, the control section and the first current crowbar and configured to activate the current crowbar based on a voltage across the first di/dt reactor.

    摘要翻译: 功率转换器包括包括第一di / dt电抗器和第一控制部分的第一相支路,第一di / dt电抗器和第一控制部分耦合在有源线路和中线之间。 功率转换器还包括耦合在有源线路和中线线圈之间的第一电流撬棒和耦合到第一di / dt电抗器的控制器,控制部分和第一电流撬棒,并且被配置为基于 第一个di / dt反应器。

    MOTOR FOR A SYNCHRONOUS ELECTRIC MACHINE AND METHOD FOR ROUTING POWER
    3.
    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
    4.
    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
    5.
    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
    7.
    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 。

    Methods for coupling an energy storage system to a variable energy supply system
    8.
    发明授权
    Methods for coupling an energy storage system to a variable energy supply system 有权
    将能量存储系统耦合到可变能量供应系统的方法

    公开(公告)号:US07923965B2

    公开(公告)日:2011-04-12

    申请号:US11247836

    申请日:2005-10-10

    IPC分类号: H02J7/00

    摘要: A method for coupling an energy storage system to a variable energy supply system includes providing an energy storage system including at least one Vanadium redox battery and at least one battery charge controller. The method also includes electrically coupling the at least one battery charge controller to the variable energy supply system such that the at least one battery is configured to supply a substantially consistent energy output during fluctuating energy loads of the energy supply system.

    摘要翻译: 将能量存储系统耦合到可变能量供应系统的方法包括提供包括至少一个钒氧化还原电池和至少一个电池充电控制器的能量存储系统。 该方法还包括将至少一个电池充电控制器电耦合到可变能量供应系统,使得至少一个电池被配置为在能量供应系统的波动能量负载期间提供基本一致的能量输出。

    Systems and methods for balancing of DC link in three level PWM power conversion equipment
    10.
    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

    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。