CLOSED-LOOP CONTROL METHOD FOR AN HVDC TRANSFER INSTALLATION HAVING A DC VOLTAGE INTERMEDIATE CIRCUIT AND SELF-COMMUTATED CONVERTERS
    1.
    发明申请
    CLOSED-LOOP CONTROL METHOD FOR AN HVDC TRANSFER INSTALLATION HAVING A DC VOLTAGE INTERMEDIATE CIRCUIT AND SELF-COMMUTATED CONVERTERS 有权
    具有直流电压中间电路和自我转换转换器的直流输电安装闭环控制方法

    公开(公告)号:US20110205771A1

    公开(公告)日:2011-08-25

    申请号:US12999900

    申请日:2008-06-17

    IPC分类号: H02M7/06

    摘要: A closed-loop control method for at least two converters in an energy transmission and/or distribution system. The converters may be controlled either as rectifier or inverter and they are connected to each other by a DC link. A measured DC voltage and a measured DC current is measured at each converter and transmitted to a rectifier regulator for regulating the corresponding rectifier or to an inverter regulator for regulating the corresponding inverter. Each rectifier regulator and each inverter regulator gives the difference between a given set DC voltage and the relevant received measured DC voltage to give a differential DC voltage and the difference between a set DC current and the corresponding received measured DC current to give a differential DC current. The measured DC current, the measured DC voltage, the set DC current and the set DC voltage are normalized with which a regulation of inverters formed of switchable power semiconductors connected by a DC link can be carried out, wherein the proviso of set currents being zero is possible. Each converter is a self-commutated converter with power semiconductors and the rectifier regulation of the provided converter is regulated such that the sum of the product of the differential voltages and the value of given set DC current at the corresponding rectifier and the differential current is a minimum and the inverter regulation regulates the corresponding inverter such that the sum between the differential voltage and the differential current is a minimum.

    摘要翻译: 一种用于能量传输和/或分配系统中的至少两个转换器的闭环控制方法。 转换器可以被控制为整流器或逆变器,并且它们通过DC链路相互连接。 在每个转换器处测量测量的直流电压和测量的直流电流,并传输到用于调节相应整流器的整流器调节器或用于调节相应逆变器的逆变器调节器。 每个整流调节器和每个逆变器调节器给定给定设定的直流电压和相关接收的测量的直流电压之间的差异,以给出差分直流电压以及设定的直流电流与对应的接收的测量的直流电流之间的差值,以给出差分直流电流 。 测量的直流电流,测量的直流电压,设定的直流电流和设定的直流电压被归一化,通过其可以执行由通过直流链路连接的可切换功率半导体形成的反相器的调节,其中设定电流的条件为零 是可能的 每个转换器是一个具有功率半导体的自整流转换器,并且调节所提供的转换器的整流器调节,使得差分电压的乘积和对应的整流器上给定的设定的DC电流的值和差分电流之和为 最小值和逆变器调节调节相应的逆变器,使得差分电压和差分电流之间的和最小。

    APPARATUS HAVING A CONVERTER
    2.
    发明申请
    APPARATUS HAVING A CONVERTER 有权
    具有转换器的装置

    公开(公告)号:US20110235375A1

    公开(公告)日:2011-09-29

    申请号:US13062579

    申请日:2008-09-05

    IPC分类号: H02H7/125

    摘要: A device has a converter which is connected to a direct voltage circuit through a short-circuit protection unit. The short-circuit protection unit is arranged at least partially in the direct voltage circuit and is provided in the direct voltage circuit to suppress short-circuit current flowing through the converter. The device contains one or more controllable power semiconductors, wherein a protection element is arranged in parallel to at least one of the controllable power semiconductors. The device prevents the negative effects of a short circuit occurring in the direct voltage network in a particularly reliable manner. For this purpose, the protection element is an energy store.

    摘要翻译: 器件具有通过短路保护单元连接到直流电压电路的转换器。 短路保护单元至少部分地布置在直流电压电路中,并且设置在直流电压电路中以抑制流过转换器的短路电流。 该器件包含一个或多个可控功率半导体,其中保护元件与至少一个可控功率半导体并联布置。 该装置以特别可靠的方式防止在直流电压网络中发生短路的负面影响。 为此,保护元件是能量储存器。

    Apparatus having a converter
    4.
    发明授权
    Apparatus having a converter 有权
    具有转换器的装置

    公开(公告)号:US08687389B2

    公开(公告)日:2014-04-01

    申请号:US13062579

    申请日:2008-09-05

    IPC分类号: H02H7/125

    摘要: A device has a converter which is connected to a direct voltage circuit through a short-circuit protection unit. The short-circuit protection unit is arranged at least partially in the direct voltage circuit and is provided in the direct voltage circuit to suppress short-circuit current flowing through the converter. The device contains one or more controllable power semiconductors, wherein a protection element is arranged in parallel to at least one of the controllable power semiconductors. The device prevents the negative effects of a short circuit occurring in the direct voltage network in a particularly reliable manner. For this purpose, the protection element is an energy store.

    摘要翻译: 器件具有通过短路保护单元连接到直流电压电路的转换器。 短路保护单元至少部分地布置在直流电压电路中,并且设置在直流电压电路中以抑制流过转换器的短路电流。 该器件包含一个或多个可控功率半导体,其中保护元件与至少一个可控功率半导体并联布置。 该装置以特别可靠的方式防止在直流电压网络中发生短路的负面影响。 为此,保护元件是能量储存器。

    ACTIVE FILTER HAVING A MULTILEVEL TOPOLOGY
    6.
    发明申请
    ACTIVE FILTER HAVING A MULTILEVEL TOPOLOGY 有权
    主动过滤器具有多个拓扑结构

    公开(公告)号:US20100127769A1

    公开(公告)日:2010-05-27

    申请号:US12595283

    申请日:2008-04-02

    IPC分类号: H03H11/24

    摘要: A cost-effective device for influencing the transmission of electrical energy of an alternating voltage line with a plurality of phases has phase modules, which each have an alternating voltage terminal for connecting to a phase of the alternating voltage line and two connecting terminals. A phase module branch extends between each connecting terminal and each alternating voltage terminal. The phase module branch is formed of a series connection of sub-modules, each having a power semiconductor circuit and an energy accumulator connected in parallel to the power semiconductor circuit. The connecting terminals are connected to one another. The power semiconductor circuit is equipped with power semiconductors that can be switched off and are connected to each other in a half bridge.

    摘要翻译: 用于影响具有多相的交流电压线的电能传输的成本有效的装置具有相模块,每个模块具有用于连接到交流电压线的相位和两个连接端子的交流电压端子。 相位模块分支在每个连接端子和每个交流电压端子之间延伸。 相模块分支由子模块的串联连接形成,每个子模块具有与功率半导体电路并联连接的功率半导体电路和能量蓄能器。 连接端子彼此连接。 功率半导体电路配备有可以关断并在半桥中彼此连接的功率半导体。

    Production of a real power equilibrium of the phase modules of a converter
    7.
    发明授权
    Production of a real power equilibrium of the phase modules of a converter 有权
    生产转换器的相位模块的实际功率平衡

    公开(公告)号:US08144489B2

    公开(公告)日:2012-03-27

    申请号:US12518200

    申请日:2006-12-08

    IPC分类号: H02M1/12

    摘要: A converter has at least one phase module, an AC voltage terminal and a DC voltage terminal. A phase module branch is formed between each DC voltage terminal and each AC voltage terminal. Each phase module branch has a series circuit containing submodules which each have a capacitor, a power semiconductor, and submodule sensors for detecting energy stored in the capacitor and with a regulation device for regulating the apparatus in dependence on energy values and predetermined desired values. Therefore unbalanced loading of the energy storage units is avoided. The regulation device has a summation unit for summing the energy values while obtaining branch energy actual values and a device for calculating circuit current desired values in dependence on the branch energy actual values. The regulation device compensates for imbalances in the branch energy actual values in dependence on the circuit current desired values.

    摘要翻译: A转换器具有至少一个相位模块,AC电压端子和DC电压端子。 在每个直流电压端子和每个交流电压端子之间形成相模块分支。 每相模块分支具有包含子模块的串联电路,每个子模块具有电容器,功率半导体和用于检测存储在电容器中的能量的子模块传感器,以及用于根据能量值和预定的期望值来调节装置的调节装置。 因此避免了能量存储单元的不平衡负载。 调节装置具有用于在获得分支能量实际值的同时求和能量值的求和单元和用于根据分支能量实际值计算电路当前期望值的装置。 调节装置根据电路电流期望值补偿分支能量实际值中的不平衡。

    SEMICONDUCTOR PROTECTION ELEMENTS FOR CONTROLLING SHORT CIRCUITS AT THE DC END OF VOLTAGE SOURCE CONVERTERS
    8.
    发明申请
    SEMICONDUCTOR PROTECTION ELEMENTS FOR CONTROLLING SHORT CIRCUITS AT THE DC END OF VOLTAGE SOURCE CONVERTERS 有权
    用于控制电压源转换器直流端短路电路的半导体保护元件

    公开(公告)号:US20100066174A1

    公开(公告)日:2010-03-18

    申请号:US12517641

    申请日:2006-12-08

    IPC分类号: H02J4/00 H02H7/12

    摘要: A device for converting an electric current includes at least one phase module having an AC terminal and at least one DC terminal. Phase module branches, each of which is equipped with serially connected submodules, are respectively provided between each DC terminal and each AC terminal. Each submodule is provided with at least one power semiconductor. Semiconductor protecting means are connected in parallel or in series to at least one of the power semiconductors to enable the device to withstand even high short-circuit currents for a sufficient period of time. A method for protecting the power semiconductors of the device, is also provided.

    摘要翻译: 用于转换电流的装置包括至少一个具有AC端子和至少一个DC端子的相位模块。 每个直流端子和每个交流端子之间分别设置相位模块分支,每个模块分支都配有串联连接的子模块。 每个子模块设置有至少一个功率半导体。 半导体保护装置并联或串联连接至功率半导体中的至少一个,以使器件能够在足够的时间段内承受甚至高的短路电流。 还提供了用于保护设备的功率半导体的方法。

    Converter with Short-Circuit Current Limiting
    9.
    发明申请
    Converter with Short-Circuit Current Limiting 有权
    转换器具有短路限流

    公开(公告)号:US20100034001A1

    公开(公告)日:2010-02-11

    申请号:US12520548

    申请日:2006-12-21

    IPC分类号: H02M7/217

    摘要: A device for inverting an electric current has at least one phase module which has an alternating current connection and at least one direct current connection. Semiconductor valves having semiconductor modules are connected in series and are provided for switching the electric current between the alternating current connection and each direct current connection. At least one power storage device is provided for storing electrical power. In order to provide such a device, with which the adverse effects of a bridging short circuit are reliably and effectively reduced, it is proposed that each semiconductor module has semiconductor groups connected in parallel to each other, wherein each semiconductor group of the semiconductor module is connected via its own separate semiconductor current path to at least one of the power storage devices.

    摘要翻译: 用于反转电流的装置具有至少一个相位模块,其具有交流电连接和至少一个直流连接。 具有半导体模块的半导体阀串联连接,用于切换交流电连接和每个直流连接之间的电流。 提供至少一个用于存储电力的蓄电装置。 为了提供这样一种能够可靠且有效地减小桥接短路的不利影响的装置,提出每个半导体模块具有彼此并联连接的半导体组,其中半导体模块的每个半导体组是 通过其独立的半导体电流路径连接到至少一个电力存储装置。

    Converter with short-circuit current limiting
    10.
    发明授权
    Converter with short-circuit current limiting 有权
    转换器具有短路电流限制

    公开(公告)号:US08462530B2

    公开(公告)日:2013-06-11

    申请号:US12520548

    申请日:2006-12-21

    IPC分类号: H02M7/5387

    摘要: A device for inverting an electric current has at least one phase module which has an alternating current connection and at least one direct current connection. Semiconductor valves having semiconductor modules are connected in series and are provided for switching the electric current between the alternating current connection and each direct current connection. At least one power storage device is provided for storing electrical power. In order to provide such a device, with which the adverse effects of a bridging short circuit are reliably and effectively reduced, it is proposed that each semiconductor module has semiconductor groups connected in parallel to each other, wherein each semiconductor group of the semiconductor module is connected via its own separate semiconductor current path to at least one of the power storage devices.

    摘要翻译: 用于反转电流的装置具有至少一个相位模块,其具有交流电连接和至少一个直流连接。 具有半导体模块的半导体阀串联连接,用于切换交流电连接和每个直流连接之间的电流。 提供至少一个用于存储电力的蓄电装置。 为了提供这样一种能够可靠且有效地减小桥接短路的不利影响的装置,提出每个半导体模块具有彼此并联连接的半导体组,其中半导体模块的每个半导体组是 通过其独立的半导体电流路径连接到至少一个电力存储装置。