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    PHOTOVOLTAIC SYSTEM FOR FEEDING THREE-PHASE CURRENT INTO A POWER GRID
    4.
    发明申请
    PHOTOVOLTAIC SYSTEM FOR FEEDING THREE-PHASE CURRENT INTO A POWER GRID 有权
    用于将三相电流馈送到电网的光伏系统

    公开(公告)号：US20110298292A1

    公开(公告)日：2011-12-08

    申请号：US13204957

    申请日：2011-08-08

    申请人： Sven Bremicker ,  Frank Greizer ,  Joachim Laschinski ,  Matthias Victor ,  Peter Simon

    发明人： Sven Bremicker ,  Frank Greizer ,  Joachim Laschinski ,  Matthias Victor ,  Peter Simon

    IPC分类号： H02M7/42

    CPC分类号： H02J3/383 ,  H01L31/02021 ,  Y02E10/563 ,  Y10T307/707

    摘要： The invention relates to a photovoltaic system for feeding three-phase current to a power grid that includes several monophase or three-phase photovoltaic inverters that can be connected to the power grid at the output end and are each fitted with a disconnecting device at the output end. The system includes several photovoltaic generators that are connected to the input end of the photovoltaic inverters. A central control and monitoring unit is connected between the photovoltaic inverters and the power grid. The control and monitoring unit has a grid monitoring device at the feeding point to the grid to measure one or more grid parameters. At least one communication link is provided between the individual photovoltaic inverters or the individual disconnecting devices and the connected central control and monitoring unit such that the connecting devices can disconnect the individual photovoltaic inverters from the power grid by means of a control instruction signal of the communication link. The central control and monitoring unit includes a load unbalance recognition component and a load unbalance regulation component, wherein the regulation includes limiting the power variation between the individual phases to a predetermined value.

    摘要翻译： 本发明涉及一种用于将三相电流馈送到电网的光伏系统，该电力系统包括若干单相或三相光伏逆变器，其可在输出端连接到电力网，并且在输出端分别装有断开装置 结束。 该系统包括连接到光伏逆变器的输入端的几个光伏发电机。 光伏逆变器和电网之间连接一个中央控制和监控单元。 控制和监测单元在电网的馈电点处具有网格监测装置，以测量一个或多个电网参数。 在各个光伏逆变器或单独的断路装置和连接的中央控制和监测单元之间提供至少一个通信链路，使得连接装置可以通过通信的控制指令信号将各个光伏逆变器与电网断开 链接。 中央控制和监测单元包括负载不平衡识别部件和负载不平衡调节部件，其中所述调节包括将各个相之间的功率变化限制到预定值。

    Photovoltaic system for feeding three-phase current into a power grid
    5.
    发明授权
    Photovoltaic system for feeding three-phase current into a power grid 有权
    用于将三相电流馈入电网的光伏系统

    公开(公告)号：US09018801B2

    公开(公告)日：2015-04-28

    申请号：US13204957

    申请日：2011-08-08

    申请人： Sven Bremicker ,  Frank Greizer ,  Joachim Laschinski ,  Matthias Victor ,  Peter Simon

    发明人： Sven Bremicker ,  Frank Greizer ,  Joachim Laschinski ,  Matthias Victor ,  Peter Simon

    IPC分类号： H02J1/00 ,  H02J3/38 ,  H01L31/02

    CPC分类号： H02J3/383 ,  H01L31/02021 ,  Y02E10/563 ,  Y10T307/707

    摘要： The invention relates to a photovoltaic system for feeding three-phase current to a power grid that includes several monophase or three-phase photovoltaic inverters that can be connected to the power grid at the output end and are each fitted with a disconnecting device at the output end. The system includes several photovoltaic generators that are connected to the input end of the photovoltaic inverters. A central control and monitoring unit is connected between the photovoltaic inverters and the power grid. The control and monitoring unit has a grid monitoring device at the feeding point to the grid to measure one or more grid parameters. At least one communication link is provided between the individual photovoltaic inverters or the individual disconnecting devices and the connected central control and monitoring unit such that the connecting devices can disconnect the individual photovoltaic inverters from the power grid by means of a control instruction signal of the communication link. The central control and monitoring unit includes a load unbalance recognition component and a load unbalance regulation component, wherein the regulation includes limiting the power variation between the individual phases to a predetermined value.

    摘要翻译： 本发明涉及一种用于将三相电流馈送到电网的光伏系统，该电力系统包括若干单相或三相光伏逆变器，其可在输出端连接到电力网，并且在输出端分别装有断开装置 结束。 该系统包括连接到光伏逆变器的输入端的几个光伏发电机。 光伏逆变器和电网之间连接一个中央控制和监控单元。 控制和监测单元在电网的馈电点处具有网格监测装置，以测量一个或多个电网参数。 在各个光伏逆变器或单独的断路装置和连接的中央控制和监测单元之间提供至少一个通信链路，使得连接装置可以通过通信的控制指令信号将各个光伏逆变器与电网断开 链接。 中央控制和监测单元包括负载不平衡识别部件和负载不平衡调节部件，其中所述调节包括将各个相之间的功率变化限制到预定值。

    Method of converting a direct current voltage from a source of direct current voltage, more specifically from a photovoltaic couse of direct current voltage, into a alternating current voltage
    6.
    发明申请
    Method of converting a direct current voltage from a source of direct current voltage, more specifically from a photovoltaic couse of direct current voltage, into a alternating current voltage 有权
    将来自直流电压源的直流电压更具体地从直流电压的光伏电池转换成交流电压的方法

    公开(公告)号：US20050286281A1

    公开(公告)日：2005-12-29

    申请号：US11154094

    申请日：2005-06-16

    申请人： Matthias Victor ,  Frank Greizer ,  Sven Bremicker ,  Uwe Hubler

    发明人： Matthias Victor ,  Frank Greizer ,  Sven Bremicker ,  Uwe Hubler

    IPC分类号： H02M7/48 ,  H02M7/537

    CPC分类号： H02M7/48 ,  H02J3/383 ,  Y02E10/563

    摘要： An inverter is devised to avoid high-frequency voltages at input terminals and to allow good efficiency thanks to its simple and cost-optimized circuit layout. This is achieved by a method of converting a direct current voltage, more specifically from a photovoltaic source of direct current voltage, into an alternating current voltage at a frequency through a bridge circuit comprising switching elements (V1-V4) and free-wheeling elements (D1-D4), said switching elements (V1-V4) being on the one side gated at the frequency and on the other side clocked at a high clock rate, a direct current voltage circuit, an alternating current voltage circuit and a plurality of free-wheeling phases being provided. It is provided that, during the free-wheeling phases, the alternating current voltage circuit is decoupled from the direct current voltage circuit by means of a switching element disposed in the direct current voltage circuit, a free-wheeling current flowing through one of the free-wheeling elements (D1) in the bridge circuit when in the decoupled state.

    摘要翻译： 设计了一种逆变器，以避免输入端子处的高频电压，并且由于其简单且成本优化的电路布局，可以实现高效率。 这是通过将直流电压更具体地从直流电压的光源转换成通过包括开关元件（V 1 -V 4）和续流的桥式电路的频率的交流电压的方法来实现的 元件（D 1 -D 4），所述开关元件（V 1 -V 4）在一侧以在高时钟频率时钟的频率和另一侧选通，直流电压电路，交流电压 电路和多个续流相。 规定在续流阶段期间，交流电压电路通过设置在直流电压电路中的开关元件与直流电压电路分离，流过自由电流之一的续流电流 （D1）在桥接电路中处于去耦状态。

    Inverter comprising normally conductive gate-controlled semiconductor switches
    7.
    发明授权
    Inverter comprising normally conductive gate-controlled semiconductor switches 有权
    逆变器包括正常导通的门控半导体开关

    公开(公告)号：US08194429B2

    公开(公告)日：2012-06-05

    申请号：US12643142

    申请日：2009-12-21

    申请人： Jens Friebe ,  Oliver Prior ,  Frank Greizer ,  Matthias Victor ,  Sven Bremicker

    发明人： Jens Friebe ,  Oliver Prior ,  Frank Greizer ,  Matthias Victor ,  Sven Bremicker

    IPC分类号： H02M7/5387

    CPC分类号： H03K17/063 ,  H02M1/32 ,  H03K17/162 ,  H03K17/20 ,  H03K2017/066 ,  H03K2017/6875 ,  Y02E10/56

    摘要： An inverter has two input lines; an inverter bridge connected between the input lines and including at least one half-bridge having two normally conductive gate-controlled semiconductor switches; a controller which supplies control voltages to the gates of the semiconductor switches in an operative state of the inverter; and a DC voltage source for supplying an auxiliary control voltage to the gates of the semiconductor switches in an inoperative state of the inverter so as to hold the inverter bridge in a non-conductive state between the input lines. The DC voltage source has a charging unit connected between the input lines in series with a further normally conductive gate-controlled semiconductor switch, and charging a storage unit for electric charge, which is connected to the gate of the further semiconductor switch such that this switch becomes non-conductive, when the storage unit has been sufficiently charged for providing the auxiliary control voltage.

    摘要翻译： 变频器有两条输入线; 连接在所述输入线之间并且包括具有两个正常导电的栅极控制的半导体开关的至少一个半桥的逆变桥; 控制器，其在所述逆变器的操作状态下向所述半导体开关的栅极提供控制电压; 以及直流电压源，用于在逆变器的非工作状态下向半导体开关的栅极提供辅助控制电压，以便将反相器桥保持在输入线之间的非导通状态。 直流电压源具有连接在与另一正常导电的栅极控制半导体开关串联的输入线之间的充电单元，并且对连接到另外的半导体开关的栅极的电荷的存储单元进行充电，使得该开关 当存储单元充分充电以提供辅助控制电压时，变得不导通。

    Inverter, more specifically for photovoltaic plants
    8.
    发明授权
    Inverter, more specifically for photovoltaic plants 有权
    逆变器，更专门用于光伏电站

    公开(公告)号：US07843714B2

    公开(公告)日：2010-11-30

    申请号：US12221125

    申请日：2008-07-31

    申请人： Sven Bremicker ,  Frank Greizer ,  Matthias Victor

    发明人： Sven Bremicker ,  Frank Greizer ,  Matthias Victor

    IPC分类号： H02M7/5387

    CPC分类号： H02M7/515 ,  H02M1/15 ,  H02M1/44 ,  H02M7/5387 ,  H02M7/5388 ,  Y02E10/56

    摘要： On an inverter (1) for converting an electric direct voltage, in particular of a photovoltaic direct voltage source into an alternating voltage with a direct voltage input with two terminals (DC+, DC−) and one alternating voltage output with two terminals (AC1, AC2) and with one bridge circuit including semiconductor switching elements (S1-S6), said bridge circuit comprising one first bridge branch (Z1) including four switching elements (S1-S4) and one second bridge branch (Z2) including two additional switching elements (S5, S6) as well as a freewheeling circuit provided with additional diodes (D7, D8), the efficiency is further increased without high frequency interferences and capacitive leakage currents having the possibility to occur on the generator side. This is achieved in that a respective one of the freewheeling diodes (D7, D8) forms a freewheeling branch together with a respective one of the switching elements (S2, S3) located in the first bridge branch (Z1), said freewheeling branch carrying a freewheeling current in a condition decoupled from the direct voltage.

    摘要翻译： 在用于将具有两个端子（DC +，DC-）的直流电压输入和具有两个端子（AC1，...）的一个交流电压输出的电压直接电压特别是光伏直流电压源转换为交流电压的逆变器（1） AC2），并且具有包括半导体开关元件（S1-S6）的一个桥接电路，所述桥接电路包括一个包括四个开关元件（S1-S4）和一个第二桥接支路（Z2）的第一桥接支路（Z1） （S5，S6）以及具有附加二极管（D7，D8）的续流电路，进一步增加了效率，而没有发生器侧可能发生的高频干扰和电容性泄漏电流。 这样实现的是，续流二极管（D7，D8）中的相应一个与位于第一桥接支路（Z1）中的开关元件（S2，S3）中的相应一个形成续流支路，所述续流支路 在与直流电压分离的条件下的续流电流。

    Inverter Comprising Normally Conductive Gate-Controlled Semiconductor Switches
    9.
    发明申请
    Inverter Comprising Normally Conductive Gate-Controlled Semiconductor Switches 有权
    逆变器包括通常的门控半导体开关

    公开(公告)号：US20100157639A1

    公开(公告)日：2010-06-24

    申请号：US12643142

    申请日：2009-12-21

    申请人： Jens Friebe ,  Oliver Prior ,  Frank Greizer ,  Matthias Victor ,  Sven Bremicker

    发明人： Jens Friebe ,  Oliver Prior ,  Frank Greizer ,  Matthias Victor ,  Sven Bremicker

    IPC分类号： H02M7/5387

    CPC分类号： H03K17/063 ,  H02M1/32 ,  H03K17/162 ,  H03K17/20 ,  H03K2017/066 ,  H03K2017/6875 ,  Y02E10/56

    摘要： An inverter comprises two input lines; an inverter bridge connected between the input lines and including at least one half-bridge comprising two normally conductive gate-controlled semiconductor switches; a controller which supplies control voltages to the gates of the semiconductor switches in an operative state of the inverter; and a DC voltage source for supplying an auxiliary control voltage to the gates of the semiconductor switches in an inoperative state of the inverter so as to hold the inverter bridge in a non-conductive state between the input lines. The DC voltage source has a charging unit connected between the input lines in series with a further normally conductive gate-controlled semiconductor switch, o and charging a storage unit for electric charge, which is connected to the gate of the further semiconductor switch such that this switch becomes non-conductive, when the storage unit has been sufficiently charged for providing the auxiliary control voltage.

    摘要翻译： 逆变器包括两条输入线; 连接在所述输入线之间且包括至少一个半桥的逆变桥，所述半桥包括两个正常导电的栅极控制半导体开关; 控制器，其在所述逆变器的操作状态下向所述半导体开关的栅极提供控制电压; 以及直流电压源，用于在逆变器的非工作状态下向半导体开关的栅极提供辅助控制电压，以便将反相器桥保持在输入线之间的非导通状态。 直流电压源具有连接在输入线之间的充电单元，该输入线与另一正常导通的栅极控制半导体开关串联，并且对与另一个半导体开关的栅极连接的电荷存储单元进行充电， 当存储单元充分充电以提供辅助控制电压时，开关变得不导通。

    Inverter, more specifically for photovoltaic plants
    10.
    发明申请
    Inverter, more specifically for photovoltaic plants 有权
    逆变器，更专门用于光伏电站

    公开(公告)号：US20090103340A1

    公开(公告)日：2009-04-23

    申请号：US12221125

    申请日：2008-07-31

    申请人： Sven Bremicker ,  Frank Greizer ,  Matthias Victor

    发明人： Sven Bremicker ,  Frank Greizer ,  Matthias Victor

    IPC分类号： H02M7/44

    CPC分类号： H02M7/515 ,  H02M1/15 ,  H02M1/44 ,  H02M7/5387 ,  H02M7/5388 ,  Y02E10/56

    摘要： On an inverter (1) for converting an electric direct voltage, in particular of a photovoltaic direct voltage source into an alternating voltage with a direct voltage input with two terminals (DC+, DC−) and one alternating voltage output with two terminals (AC1, AC2) and with one bridge circuit including semiconductor switching elements (S1-S6), said bridge circuit comprising one first bridge branch (Z1) including four switching elements (S1-S4) and one second bridge branch (Z2) including two additional switching elements (S5, S6) as well as a freewheeling circuit provided with additional diodes (D7, D8), the efficiency is further increased without high frequency interferences and capacitive leakage currents having the possibility to occur on the generator side. This is achieved in that a respective one of the freewheeling diodes (D7, D8) forms a freewheeling branch together with a respective one of the switching elements (S2, S3) located in the first bridge branch (Z1), said freewheeling branch carrying a freewheeling current in a condition decoupled from the direct voltage.

    摘要翻译： 在用于将具有两个端子（DC +，DC-）的直流电压输入和具有两个端子（AC1，...）的一个交流电压输出的电压直接电压特别是光伏直流电压源转换为交流电压的逆变器（1） AC2），并且具有包括半导体开关元件（S1-S6）的一个桥接电路，所述桥接电路包括一个包括四个开关元件（S1-S4）和一个第二桥接支路（Z2）的第一桥接支路（Z1） （S5，S6）以及具有附加二极管（D7，D8）的续流电路，进一步增加了效率，而没有发生器侧可能发生的高频干扰和电容性泄漏电流。 这样实现的是，续流二极管（D7，D8）中的相应一个与位于第一桥接支路（Z1）中的开关元件（S2，S3）中的相应一个形成续流支路，所述续流支路 在与直流电压分离的条件下的续流电流。