CONVERTER CONTROL UNIT
    1.
    发明申请
    CONVERTER CONTROL UNIT 失效
    转换器控制单元

    公开(公告)号:US20090079267A1

    公开(公告)日:2009-03-26

    申请号:US12201493

    申请日:2008-08-29

    IPC分类号: H02J3/24 H02P9/10

    摘要: The disclosure relates to a converter control unit or power system stabilizing unit for counteracting oscillations in electric power systems that is equipped and employed to provide and processes information for system-wide monitoring, protection, control and metering. It comprises means for synchronized (e.g. via GPS or another absolute/global time reference) sampling of voltages and/or currents, means for down-sampling in order to decrease the number of samples, and means for calculating phasors, i.e. time stamped amplitude and phase angle of the voltages and/or currents.

    摘要翻译: 本公开涉及一种用于抵消电力系统中的振荡的转换器控制单元或电力系统稳定单元,其被配备并用于提供和处理用于系统范围监视,保护,控制和计量的信息。 它包括用于同步(例如通过GPS或另一绝对/全局时间参考)电压和/或电流的采样的装置,用于下采样的装置以减少采样数量,以及用于计算相量的装置,即时间戳幅度和 电压和/或电流的相位角。

    Converter control unit
    2.
    发明授权
    Converter control unit 失效
    转换器控制单元

    公开(公告)号:US07973427B2

    公开(公告)日:2011-07-05

    申请号:US12201493

    申请日:2008-08-29

    IPC分类号: H01J1/10

    摘要: The disclosure relates to a converter control unit or power system stabilizing unit for counteracting oscillations in electric power systems that is equipped and employed to provide and processes information for system-wide monitoring, protection, control and metering. It comprises means for synchronized (e.g. via GPS or another absolute/global time reference) sampling of voltages and/or currents, means for down-sampling in order to decrease the number of samples, and means for calculating phasors, i.e. time stamped amplitude and phase angle of the voltages and/or currents.

    摘要翻译: 本公开涉及一种用于抵消电力系统中的振荡的转换器控制单元或电力系统稳定单元,其被配备并用于提供和处理用于系统范围监视,保护,控制和计量的信息。 它包括用于同步(例如通过GPS或另一绝对/全局时间参考)电压和/或电流的采样的装置,用于下采样的装置以减少采样数量,以及用于计算相量的装置,即时间戳幅度和 电压和/或电流的相位角。

    Method for fault handling in a converter circuit for wiring of three voltage levels
    3.
    发明申请
    Method for fault handling in a converter circuit for wiring of three voltage levels 有权
    用于三个电压电平接线的转换器电路中的故障处理方法

    公开(公告)号:US20080204959A1

    公开(公告)日:2008-08-28

    申请号:US11640228

    申请日:2006-12-18

    IPC分类号: H02H9/02 H02H3/08

    CPC分类号: H02H7/1225 H02M1/32 H02M7/487

    摘要: The document specifies a method for fault handling in a converter circuit for switching three voltage levels, in which the converter circuit has a converter subsystem provided for each phase (R,S,T), in which a top fault current path (A) or a bottom fault current path (B) in the converter subsystem is detected, the top fault current path (A) running through the first, second, third and sixth power semiconductor switches in the converter subsystem or through the first and fifth power semiconductor switches (S1, S5) in the converter subsystem, and the bottom fault current path (B) running through the second, third, fourth and fifth power semiconductor switches in the converter subsystem or through the fourth and sixth power semiconductor switches in the converter subsystem, and in which the power semiconductor switches are switched on the basis of a fault switching sequence. To avoid phase shorting of all the phases of the converter circuit in order to achieve a safe operating state for the converter circuit in the event of a fault, the fault switching sequence in the event of detection of the top or the bottom fault current path (A, B) is initially followed by the detection's accompanying switching status of each power semiconductor switch being recorded. In addition, in the event of detection of the top fault current path (A) the first power semiconductor switch and then the third power semiconductor are turned off, and in the event of detection of the bottom fault current path (B) the fourth power semiconductor switch and then the second power semiconductor are turned off.

    摘要翻译: 该文件规定了用于切换三个电压电平的转换器电路中的故障处理方法,其中转换器电路具有为每个相位(R,S,T)提供的转换器子系统,其中顶部故障电流路径(A)或 检测转换器子系统中的底部故障电流路径(B),在转换器子系统中通过第一,第二,第三和第六功率半导体开关的顶部故障电流路径(A),或通过第一和第五功率半导体开关 转换器子系统中的S 1,S 5)以及通过转换器子系统中的第二,第三,第四和第五功率半导体开关的底部故障电流路径(B),或通过转换器子系统中的第四和第六功率半导体开关 ,并且其中基于故障切换序列来切换功率半导体开关。 为了避免转换器电路的所有相的相位短路,以便在发生故障时实现转换器电路的安全工作状态,在检测到顶部或底部故障电流路径的情况下,故障切换顺序( A,B)最初跟随着被记录的每个功率半导体开关的检测伴随的开关状态。 此外,在检测到顶部故障电流路径(A)的情况下,第一功率半导体开关然后关闭第三功率半导体,并且在检测到底部故障电流路径(B)的情况下,第四功率 半导体开关,然后关闭第二功率半导体。

    Hot water pump with cooled sealing housing
    4.
    发明授权
    Hot water pump with cooled sealing housing 失效
    热水泵带冷却密封外壳

    公开(公告)号:US3942584A

    公开(公告)日:1976-03-09

    申请号:US251868

    申请日:1972-05-10

    申请人: Rudolf Wieser

    发明人: Rudolf Wieser

    IPC分类号: F04D29/58 F04D29/64 F24H3/00

    CPC分类号: F04D29/588 F04D29/648

    摘要: This invention relates to an improvement in a hot water pump having a cooled sealing housing in a pump cover in the upper pump portion. The improvement comprises means mounting the sealing housing in a recess of the pump cover in a manner such that an annular air space is present between the outer surface of said sealing housing and the inner surface of the recess of the pump cover, said air space being in communication with the exterior space surrounding the pump.

    摘要翻译: 本发明涉及在上泵部分的泵盖中具有冷却密封壳体的热水泵的改进。 该改进包括将密封壳体安装在泵盖的凹部中的方式,使得在所述密封壳体的外表面和泵盖的凹部的内表面之间存在环形空气空间,所述空气空间为 与泵周围的外部空间连通。

    Starting apparatus for at least two synchronous machines
    5.
    发明授权
    Starting apparatus for at least two synchronous machines 有权
    用于至少两台同步电机的起动装置

    公开(公告)号:US08102132B2

    公开(公告)日:2012-01-24

    申请号:US12471898

    申请日:2009-05-26

    IPC分类号: H02P1/58 H02P5/46

    摘要: A starting apparatus is disclosed for at least two synchronous machines, which starting apparatus includes an exciter unit which is provided for each synchronous machine and is associated with the respective synchronous machine. Each exciter unit can be connected to the field winding of the associated synchronous machine. A superordinate control unit is provided, with the superordinate control unit being connected via a communication link to each exciter unit. Furthermore, the starting apparatus includes at least one stator feed unit and at least one switching device, which is provided for each stator feed unit and is associated with the respective stator feed unit, in which case the respective switching device can be connected to the associated stator feed unit, the respective switching device can be connected to at least one synchronous machine, and the switching devices can be connected to one another when there are a plurality of switching devices. The exciter units can be connected to one another via a ring communication link. Each stator feed unit can be connected to the ring communication link. Each stator feed unit can also be connected via a communication link to an associated switching device, and exciter units which are associated with the stator feed units can be each connected via a communication link to a switching device.

    摘要翻译: 公开了至少两台同步电机的启动装置,该启动装置包括为每个同步电机提供并与相应的同步电机相关联的励磁机单元。 每个激励器单元可以连接到相关同步电机的励磁绕组。 提供上级控制单元,其中上级控制单元经由通信链路连接到每个励磁单元。 此外,起动装置包括至少一个定子供给单元和至少一个开关装置,该至少一个开关装置为每个定子馈送单元提供并且与相应的定子馈送单元相关联,在这种情况下,相应的开关装置可以连接到相关联的 定子馈送单元,相应的开关装置可以连接到至少一个同步电机,并且当存在多个开关装置时,开关装置可以彼此连接。 激励器单元可以通过环形通信链路相互连接。 每个定子馈送单元可以连接到环形通信链路。 每个定子馈送单元还可以经由通信链路连接到相关联的开关装置,并且与定子馈送单元相关联的激励器单元可以各自经由通信链路连接到开关装置。

    Method for fault handling in a converter circuit for wiring of three voltage levels
    6.
    发明授权
    Method for fault handling in a converter circuit for wiring of three voltage levels 有权
    用于三个电压电平接线的转换器电路中的故障处理方法

    公开(公告)号:US07508640B2

    公开(公告)日:2009-03-24

    申请号:US11640228

    申请日:2006-12-18

    IPC分类号: H02H3/08

    CPC分类号: H02H7/1225 H02M1/32 H02M7/487

    摘要: The document specifies a method for fault handling in a converter circuit for switching three voltage levels, in which the converter circuit has a converter subsystem provided for each phase (R,S,T), in which a top fault current path (A) or a bottom fault current path (B) in the converter subsystem is detected, the top fault current path (A) running through the first, second, third and sixth power semiconductor switches in the converter subsystem or through the first and fifth power semiconductor switches (S1, S5) in the converter subsystem, and the bottom fault current path (B) running through the second, third, fourth and fifth power semiconductor switches in the converter subsystem or through the fourth and sixth power semiconductor switches in the converter subsystem, and in which the power semiconductor switches are switched on the basis of a fault switching sequence. To avoid phase shorting of all the phases of the converter circuit in order to achieve a safe operating state for the converter circuit in the event of a fault, the fault switching sequence in the event of detection of the top or the bottom fault current path (A, B) is initially followed by the detection's accompanying switching status of each power semiconductor switch being recorded. In addition, in the event of detection of the top fault current path (A) the first power semiconductor switch and then the third power semiconductor are turned off, and in the event of detection of the bottom fault current path (B) the fourth power semiconductor switch and then the second power semiconductor are turned off.

    摘要翻译: 该文件规定了用于切换三个电压电平的转换器电路中的故障处理方法,其中转换器电路具有为每个相位(R,S,T)提供的转换器子系统,其中顶部故障电流路径(A)或 检测转换器子系统中的底部故障电流路径(B),在转换器子系统中通过第一,第二,第三和第六功率半导体开关的顶部故障电流路径(A),或通过第一和第五功率半导体开关 S1,S5)和通过转换器子系统中的第二,第三,第四和第五功率半导体开关的底部故障电流路径(B),或通过转换器子系统中的第四和第六功率半导体开关,以及 其中功率半导体开关基于故障切换序列被切换。 为了避免转换器电路的所有相的相位短路,以便在发生故障时实现转换器电路的安全工作状态,在检测到顶部或底部故障电流路径的情况下,故障切换顺序( A,B)最初跟随着被记录的每个功率半导体开关的检测伴随的开关状态。 此外,在检测到顶部故障电流路径(A)的情况下,第一功率半导体开关然后关闭第三功率半导体,并且在检测到底部故障电流路径(B)的情况下,第四功率 半导体开关,然后关闭第二功率半导体。