RC-IGBT SWITCHING PULSE CONTROL
    21.
    发明申请
    RC-IGBT SWITCHING PULSE CONTROL 有权
    RC-IGBT开关脉冲控制

    公开(公告)号:US20160020764A1

    公开(公告)日:2016-01-21

    申请号:US14774026

    申请日:2013-04-05

    Abstract: A method for controlling a first and a second reverse-conducting insulated gate bipolar transistor (RC-IGBT), electrically connected in series, is disclosed. A collector of the first RC-IGBT is electrically connected to a positive pole of a direct current voltage source, and an emitter of the second RC-IGBT is electrically connected to a negative pole of the DC voltage source. Further, an emitter of the first RC-IGBT is electrically connected to a collector of the second RC-IGBT to form an alternating current terminal. A gate voltage is applied to respective gates of the first and second RC-IGBTs, wherein the gate voltage is controlled based on a magnitude and a direction of an output current on the AC terminal and on a command signal alternating between a first and a second value.

    Abstract translation: 公开了一种串联电连接的第一和第二反向导通绝缘栅双极晶体管(RC-IGBT)的控制方法。 第一RC-IGBT的集电极电连接到直流电压源的正极,并且第二RC-IGBT的发射极电连接到直流电压源的负极。 此外,第一RC-IGBT的发射极电连接到第二RC-IGBT的集电极,以形成交流端子。 栅极电压施加到第一和第二RC-IGBT的各个栅极,其中基于AC端子上的输出电流的大小和方向以及在第一和第二RC之间交替的命令信号来控制栅极电压 值。

    CELLS CONTROL IN A MULTILEVEL CONVERTER
    22.
    发明申请
    CELLS CONTROL IN A MULTILEVEL CONVERTER 有权
    多电平转换器中的电池控制

    公开(公告)号:US20150340967A1

    公开(公告)日:2015-11-26

    申请号:US14646456

    申请日:2012-12-21

    Abstract: Cells in a phase leg of a multilevel converter are controlled through regulating, using tap-changer control, the modulation index of the converter to above 0.80, providing a group of carrier waves for the phase leg, where these carrier waves are identical but displaced in time from each other with a time delay, providing a voltage reference for the phase leg being separate from voltage references provided for other phase legs, stop switching of the cells when waveform values of a power transmission converter waveform are detected to be in a selected interval around a peak value of the power transmission converter waveform and control switching of the cells based on comparisons of the respective carrier waves with the voltage reference when the waveform values of the power transmission converter waveform are detected to be outside the selected interval.

    Abstract translation: 通过使用分接开关控制将转换器的调制指数调节到0.80以上,为相位支路提供一组载波来控制多电平转换器的相位支路中的单元,其中这些载波相同但位移在 时间延迟,提供相位腿的电压基准与提供给其他相位腿的电压基准分离,当检测到电力变换器波形的波形值处于选定的间隔时停止单元的切换 围绕电力变送器波形的峰值,并且当检测到电力变换器波形的波形值在所选择的间隔之外时,基于各载波与电压基准的比较来控制电池的切换。

    Wind power converter
    25.
    发明授权
    Wind power converter 有权
    风力发电机组

    公开(公告)号:US09166495B2

    公开(公告)日:2015-10-20

    申请号:US13876541

    申请日:2011-06-24

    Applicant: Eryong Guan

    Inventor: Eryong Guan

    CPC classification number: H02M5/4585 H02J3/386 Y02E10/763

    Abstract: A wind power converter includes a multiple of phase power converters, each of which being adapted to convert power output from a corresponding phase of a wind generator to a corresponding phase of a grid. Each of the phase power converters includes a full-wave rectifier, being adapted to rectify the power input through a first terminal and a second terminal from the corresponding phase of the wind generator; a capacitor being adapted to be charged by the power rectified by the full-wave rectifier; and a full-wave active inverter, being adapted to invert the power stored in the capacitor and output the inverted power to the corresponding phase of the grid through a third terminal and a fourth terminal. The first terminal or the second terminal is connected to a first virtual neutral; and the third terminal or the fourth terminal is connected to a second virtual neutral. By having such topology, each phase power converter serves as a power conversion module independent of the others. Thus, the electrical coupling between any two of the phase power converter is removed. The details of the phase power converter will be described thereafter. It is therefore an objective of the invention to decrease the cost and at the same increase the feeding electrical power quality.

    Abstract translation: 风力转换器包括多个相电力转换器,每个相电力转换器适于将从风力发电机的相应相位输出的功率转换为电网的相应相位。 每个相电力转换器包括全波整流器,其适于通过来自风力发电机的相应相位的第一端子和第二端子整流电力输入; 电容器适于由全波整流器整流的功率充电; 以及全波有源逆变器,其适于反转存储在电容器中的功率,并且通过第三端子和第四端子将反相的功率输出到电网的相应相位。 第一终端或第二终端连接到第一虚拟中性线; 并且第三终端或第四终端连接到第二虚拟空档。 通过具有这样的拓扑结构,每相电力转换器用作独立于其它电力转换模块的功率转换模块。 因此,去除了任何两个相电力转换器之间的电耦合。 此后将描述相电力转换器的细节。 因此,本发明的目的是降低成本,同时提高供电电力质量。

    MULTILEVEL CONVERTER WITH CELLS BEING SELECTED BASED ON PHASE ARM CURRENT
    26.
    发明申请
    MULTILEVEL CONVERTER WITH CELLS BEING SELECTED BASED ON PHASE ARM CURRENT 有权
    多相转换器与基于相电流的电流选择

    公开(公告)号:US20150280604A1

    公开(公告)日:2015-10-01

    申请号:US14435900

    申请日:2012-11-27

    Inventor: Arman Hassanpoor

    CPC classification number: H02M7/06 H02M7/217 H02M7/483 H02M2007/4835

    Abstract: A method and computer program product are provided for selecting switching cells for voltage contribution in a phase arm of a multilevel converter, a cell selecting control device for a multilevel converter and a multilevel converter. The cell selecting control device and multilevel converter includes a balancing control element that obtains a reference voltage for the phase arm, obtains a measurement of the current running through the phase arm and selects cells for contributing to an AC voltage output from the multilevel converter based on the reference voltage and the magnitude of the phase arm current.

    Abstract translation: 提供了一种方法和计算机程序产品,用于选择用于多电平转换器的相位臂中的电压贡献的开关单元,用于多电平转换器的单元选择控制装置和多电平转换器。 电池选择控制装置和多电平转换器包括获得相臂的参考电压的平衡控制元件,获得通过相臂运行的电流的测量值,并选择用于有助于从多电平转换器输出的AC电压的电池,基于 参考电压和相臂电流的幅度。

    Bushing diagnosis
    27.
    发明授权
    Bushing diagnosis 有权
    衬套诊断

    公开(公告)号:US09128477B2

    公开(公告)日:2015-09-08

    申请号:US13154029

    申请日:2011-06-06

    CPC classification number: G05B19/0428 G01R31/027 G05B2219/24042

    Abstract: A method and a device for diagnosing the status of an electrical apparatus having a sealed fluid based insulating system. The device includes at least one input for receiving measurements of a current running through the apparatus and measurements of an actual apparatus fluid pressure as well as a diagnosing unit. The diagnosing unit determines a corresponding theoretical apparatus fluid pressure based on the measured current, compares the actual apparatus fluid pressure with the theoretical apparatus fluid pressure and diagnoses the status of the apparatus based on the comparison.

    Abstract translation: 一种用于诊断具有密封的基于流体的绝缘系统的电气设备的状态的方法和装置。 该装置包括至少一个用于接收通过装置的电流的测量值和实际装置流体压力的测量值以及诊断单元的输入。 诊断单元基于测量的电流确定相应的理论装置流体压力,将实际装置流体压力与理论装置流体压力进行比较,并基于比较来诊断装置的状态。

    CONTROL SYSTEM WITH MULTIPLE TERMINAL BOARDS AND METHOD FOR CONNECTING MULTIPLE TERMINAL BOARDS
    28.
    发明申请
    CONTROL SYSTEM WITH MULTIPLE TERMINAL BOARDS AND METHOD FOR CONNECTING MULTIPLE TERMINAL BOARDS 审中-公开
    具有多个终端板的控制系统和连接多个终端板的方法

    公开(公告)号:US20150237730A1

    公开(公告)日:2015-08-20

    申请号:US14434532

    申请日:2012-10-23

    Abstract: A control system may include a plurality of terminal boards. Each of the plurality of terminal boards may at least include a power pin. The definition of the power pin on at least one of the plurality of terminal boards may be different from the definition of the power pin on another one of the plurality of terminal boards. Thus, if the at least one of the plurality of terminal boards is connected to a wrong input/output module, the input/output module will not get a process power supplied via the power pin on the terminal board. Therefore, a wrong input/output signal will not be transferred, and the input/output module will not be damaged even if a higher process voltage is provided by a wrong terminal board.

    Abstract translation: 控制系统可以包括多个终端板。 多个端子板中的每一个可以至少包括电源引脚。 多个端子板中的至少一个端子板上的电源引脚的定义可以与多个端子板中的另一个端子板上的电源引脚的定义不同。 因此,如果多个端子板中的至少一个连接到错误的输入/输出模块,则输入/输出模块将不会获得通过端子板上的电源引脚提供的处理能力。 因此,错误的输入/输出信号将不会传输,即使错误的端子板提供较高的处理电压,输入/输出模块也不会损坏。

    DEVICE FOR INDICATING THE STATE OF A SWITCHING APPARATUS
    30.
    发明申请
    DEVICE FOR INDICATING THE STATE OF A SWITCHING APPARATUS 有权
    用于指示切换装置的状态的装置

    公开(公告)号:US20150194276A1

    公开(公告)日:2015-07-09

    申请号:US14404873

    申请日:2013-05-03

    Inventor: Daniel Johansson

    Abstract: A device for indicating the state of an electrical switching apparatus includes a movable contact arranged movable between a first and a second position. The device includes at least one protruding contact element arranged on the movable contact, at least one contact pin arranged in the close vicinity to the movable contact such that said contact element abuts the contact pin when the movable contact is in the first position and said contact element is at a distance from the contact pin when the movable contact is in the second position. The contact element and the contact pin form an electrical switch and a detector arrangement configured to detect when said electrical switch is closed and by that detect when the movable contact is in the first position.

    Abstract translation: 用于指示电气开关装置的状态的装置包括可移动的触点,其可在第一和第二位置之间移动。 该装置包括布置在可动触点上的至少一个突出接触元件,至少一个接触销布置在可动触点附近,使得当可动触点处于第一位置时所述接触元件抵靠触针,并且所述触点 当可动触点处于第二位置时,元件与接触销相距一定距离。 接触元件和接触销形成电开关和检测器装置,其被配置为检测何时所述电开关闭合,并且通过该检测器检测何时可动触点处于第一位置。

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