中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

14 records (took 0.014 seconds)

    Single-Phase Emergency Operation of a Three-Phase Inverter and Corresponding Inverter
    2.
    发明申请
    Single-Phase Emergency Operation of a Three-Phase Inverter and Corresponding Inverter 有权
    三相逆变器及相应变频器的单相紧急动作

    公开(公告)号：US20150280607A1

    公开(公告)日：2015-10-01

    申请号：US14660346

    申请日：2015-03-17

    Applicant: SMA Solar Technology AG

    Inventor： Volker Wachenfeld ,  Claus Allert ,  Christian Gehrke ,  Tobias Mueller ,  Pablo Ignacio Correa Vasquez ,  Florian Steiper

    IPC: H02M7/42

    CPC classification number: H02M7/42 ,  H02J3/383 ,  H02J9/062 ,  H02M7/48 ,  H02M7/487 ,  Y02B10/72

    Abstract: A method for converting DC power from a source into AC power by means of an inverter which includes three bridge branches, each having a phase output, is described. During grid-connected operation, the bridge branches are actuated in such a way that the AC power is fed, as three-phase grid-compliant power, into a grid. During emergency operation of the inverter, the AC power is provided as single-phase island grid by two of the three bridge branches at the phase outputs thereof, wherein the inverter is disconnected from the grid.

    Abstract translation: 描述了通过包括三个具有相位输出的桥接分支的逆变器将来自源的直流电力转换为交流电力的方法。 在并网运行期间，电桥分支以这样的方式启动，使得AC电力作为三相并网电力馈送到电网中。 在逆变器的紧急运行期间，三相桥式分支中的两个在相位输出端由交流电源提供为单相岛电网，其中逆变器与电网断开连接。

    Method and inverter for determining capacitance values of capacitances of an energy supply system
    3.
    发明授权
    Method and inverter for determining capacitance values of capacitances of an energy supply system 有权

    公开(公告)号：US10148225B2

    公开(公告)日：2018-12-04

    申请号：US15154136

    申请日：2016-05-13

    Applicant: SMA Solar Technology AG

    Inventor： Alexander Unru ,  Harald Drangmeister ,  Tobias Mueller ,  Pablo Correa Vasquez

    IPC: H02S50/10 ,  H02S50/00 ,  G01R31/42 ,  G01R31/02 ,  H02J3/38 ,  H02M7/48

    Abstract: A method for determining capacitance values of capacitances of a photovoltaic system including a multiphase inverter which includes an output current filter on an alternating current side thereof and is connected to a multiphase energy supply network via a switching element and is associated with at least one intermediate circuit capacitance on the direct current side thereof is provided. The method includes disconnecting the photovoltaic system from the energy supply network by opening the switching element; operating the inverter to set up an island network after the disconnecting, wherein an in-phase AC voltage is applied to at least two outputs of an inverter bridge of the multiphase inverter and a flow of current is produced between the at least one intermediate circuit capacitance and at least one filter capacitance of the output current filter; measuring currents (Ia, Ib, Ic) flowing at the outputs of the inverter bridge and at least one voltage present at one of the capacitances, and determining a capacitance value of at least one of the capacitances using the determined voltage and the measured currents (Ia, Ib, Ic).

    Method for the Operational Control of an Inverter
    5.
    发明申请
    Method for the Operational Control of an Inverter 有权
    变频器运行控制方法

    公开(公告)号：US20130099571A1

    公开(公告)日：2013-04-25

    申请号：US13645983

    申请日：2012-10-05

    Applicant: SMA Solar Technology AG

    Inventor： Sven Bremicker ,  Karel De Brabandere ,  Tobias Mueller

    IPC: H02M7/42

    CPC classification number: H02M7/42 ,  H02J3/383 ,  H02M1/32 ,  H02M7/487 ,  H02M2001/0025 ,  H02M2001/123 ,  Y02E10/563 ,  Y10T307/50

    Abstract: A method for the operational control of an inverter designed for DC/AC voltage conversion that has at least one direct-voltage input and that can be connected to a power supply grid via at least one alternating-voltage output, the inverter being involved in a power flow interaction with the grid in such a manner that, during operation of the inverter, a leakage current IA can occur, wherein the leakage current IA is controlled in the operational control.

    Abstract translation: 一种用于DC / AC电压转换设计的逆变器的操作控制方法，所述逆变器具有至少一个直流电压输入，并且可经由至少一个交流电压输出连接到电网，所述逆变器参与 与电网的功率流相互作用使得在逆变器工作期间可能发生泄漏电流IA，其中泄漏电流IA被控制在操作控制中。

    Tracking method and tracking device for a voltage converter for a photovoltaic system
    6.
    发明授权
    Tracking method and tracking device for a voltage converter for a photovoltaic system 有权
    用于光伏系统的电压转换器的跟踪方法和跟踪装置

    公开(公告)号：US09444365B2

    公开(公告)日：2016-09-13

    申请号：US14260741

    申请日：2014-04-24

    Applicant: SMA Solar Technology AG

    Inventor： Martin Bock ,  Tobias Mueller ,  Thomas Ortmann ,  Alexander Unru

    IPC: G05F1/67 ,  H02M7/42 ,  H02M7/44 ,  H02M7/48 ,  H02M7/53 ,  H02M7/537

    CPC classification number: H02M7/42 ,  G05F1/67 ,  Y02E10/58

    Abstract: The disclosure relates to a tracking method for a voltage transformer, in particular an inverter, of a photovoltaic system. In the method, an intermediate circuit voltage is repeatedly decreased or increased in one direction to a lower or higher voltage by voltage steps of a specified magnitude. The method is characterized in that an average rate of change of the intermediate circuit voltage in a partial time period between two voltage steps is limited by a maximum average rate of change, the maximum average rate of change being defined according to the magnitude of the intermediate circuit voltage. The disclosure further relates to a tracking device designed to perform the tracking method and to an inverter equipped with the tracking device.

    Abstract translation: 本公开涉及一种用于光伏系统的变压器，特别是逆变器的跟踪方法。 在该方法中，通过规定幅度的电压阶段，中间电路电压通过一个方向重复地减小或增加到较低或更高的电压。 该方法的特征在于，在两个电压阶段之间的部分时间段内的中间电路电压的平均变化率受到最大平均变化率的限制，最大平均变化率根据中间值的大小而定义 电路电压。 本公开还涉及被设计为执行跟踪方法的跟踪装置以及配备有跟踪装置的逆变器。

    CONNECTING AN INVERTER IN A SOLAR POWER PLANT WITH SHIFTED POTENTIAL CENTER POINT
    7.
    发明申请
    CONNECTING AN INVERTER IN A SOLAR POWER PLANT WITH SHIFTED POTENTIAL CENTER POINT 有权
    将变压器连接到具有移动的潜在中心点的太阳能发电厂

    公开(公告)号：US20140321166A1

    公开(公告)日：2014-10-30

    申请号：US14324299

    申请日：2014-07-07

    Applicant: SMA Solar Technology AG

    Inventor： Stephanie Coors ,  Tobias Mueller ,  Oliver Prior

    IPC: H02M7/42

    CPC classification number: H02M7/42 ,  H02J3/08 ,  H02J3/383 ,  H02J3/40 ,  Y02E10/563 ,  Y10T307/735

    Abstract: The invention relates to a process of connecting an AC output of a transformerless inverter of a solar power plant to an internal AC power grid at an input side of a galvanic isolation, while an offset voltage for shifting a potential center point of a photovoltaic generator connected to the inverter is applied. The process includes: (i) synchronizing the inverter with the power grid; (ii) essentially matching a potential center point of the current-carrying lines of the AC output and a potential center point of the power grid, while only one of the potential center points of the current-carrying lines and the power grid is yet shifted by the offset voltage; and (iii) galvanically connecting all current-carrying lines of the AC output with the power grid only after the steps of synchronizing and essentially matching.

    Abstract translation: 本发明涉及一种将太阳能发电厂的无变压器逆变器的交流输出连接到电隔离输入侧的内部交流电网的过程，同时用于使光伏发电机的潜在中心点相连的偏移电压 到变频器应用。 该过程包括：（i）使逆变器与电网同步; （ii）基本上匹配交流输出的载流线路的电位中心点和电网的潜在中心点，而载流线路和电网的潜在中心点中只有一个仍然偏移 通过偏移电压; 和（iii）仅在同步和基本匹配的步骤之后将AC输出的所有载流线与电网电连接。

    Connecting an inverter in a solar power plant with shifted potential center point
    8.
    发明授权
    Connecting an inverter in a solar power plant with shifted potential center point 有权
    将变频器连接到具有偏移电位中心点的太阳能发电厂

    公开(公告)号：US08804390B2

    公开(公告)日：2014-08-12

    申请号：US13671914

    申请日：2012-11-08

    Applicant: SMA Solar Technology AG

    Inventor： Stephanie Coors ,  Tobias Mueller ,  Oliver Prior

    IPC: H02M7/44 ,  H02M7/5387

    CPC classification number: H02M7/42 ,  H02J3/08 ,  H02J3/383 ,  H02J3/40 ,  Y02E10/563 ,  Y10T307/735

    Abstract: The invention relates to a process of connecting an AC output of a transformerless inverter of a solar power plant to an internal AC power grid at an input side of a galvanic isolation, while an offset voltage for shifting a potential center point of a photovoltaic generator connected to the inverter is applied. The process includes: (i) synchronizing the inverter with the power grid; (ii) essentially matching a potential center point of the current-carrying lines of the AC output and a potential center point of the power grid, while only one of the potential center points of the current-carrying lines and the power grid is yet shifted by the offset voltage; and (iii) galvanically connecting all current-carrying lines of the AC output with the power grid only after the steps of synchronizing and essentially matching.

    Abstract translation: 本发明涉及一种将太阳能发电厂的无变压器逆变器的交流输出连接到电隔离输入侧的内部交流电网的过程，同时用于使光伏发电机的潜在中心点相连的偏移电压 到变频器应用。 该过程包括：（i）使逆变器与电网同步; （ii）基本上匹配交流输出的载流线路的电位中心点和电网的潜在中心点，而载流线路和电网的潜在中心点中只有一个仍然偏移 通过偏移电压; 和（iii）仅在同步和基本匹配的步骤之后将AC输出的所有载流线与电网电连接。

Patent Agency Ranking