公开(公告)号：USRE44901E1

公开(公告)日：2014-05-20

申请号：US13212811

申请日：2011-08-18

申请人： Holger Becker ,  Guenther Cramer ,  Sven Bremicker ,  Thorsten Dingel ,  Bernd Engel ,  Wilfried Groote ,  Frank Greizer ,  Ralf Joachim Laschinski ,  Matthias Victor ,  Torben Westphal

发明人： Holger Becker ,  Guenther Cramer ,  Sven Bremicker ,  Thorsten Dingel ,  Bernd Engel ,  Wilfried Groote ,  Frank Greizer ,  Ralf Joachim Laschinski ,  Matthias Victor ,  Torben Westphal

IPC分类号： H02J1/12 ,  H02J3/00 ,  H02J5/00 ,  H03K19/00 ,  H02J3/38 ,  H02J7/34 ,  H02J1/00 ,  G05D17/00 ,  G05D3/12 ,  G05D5/00 ,  G05D9/00 ,  G05D11/00

CPC分类号： H02J3/383 ,  H02J3/26 ,  Y02E10/563 ,  Y02E40/50 ,  Y10T307/505 ,  Y10T307/511 ,  Y10T307/707

摘要： A method of converting a direct voltage generated by a decentralized power supply system into three-phase alternating voltage by means of a plurality of single-phase inverters (WR1-WR3), said alternating voltage being provided for supplying an electric mains, is intended to avoid inadmissible load unbalances using single-phase inverters. This is achieved in that, upon failure of one inverter (WR1-WR3), an asymmetrical power supply distribution is reduced by limiting the output of the other inverters. The method makes it possible to simplify three-phase voltage monitoring.

摘要翻译： 一种通过多个单相逆变器（WR1-WR3）将由分散电源系统产生的直流电压转换为三相交流电压的方法，所述交流电压用于供电， 避免使用单相逆变器不允许负载不平衡。 这是通过一个逆变器（WR1-WR3）的故障来实现的，通过限制其他逆变器的输出来减小非对称的电源分配。 该方法可以简化三相电压监测。

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。

公开(公告)号：US20090097172A1

公开(公告)日：2009-04-16

申请号：US12286429

申请日：2008-09-30

申请人： Sven Bremicker ,  Stefan Buchhold ,  Frank Greizer ,  Gunther Cramer

发明人： Sven Bremicker ,  Stefan Buchhold ,  Frank Greizer ,  Gunther Cramer

IPC分类号： H01H9/30 ,  H02H3/00

CPC分类号： H01H33/596 ,  H01H9/542 ,  H01L31/02021 ,  Y02E10/50

摘要： The subject matter of the present invention is a load breaker arrangement (1) for switching on and off a DC current of a DC current circuit in a photovoltaic plant with a semiconductor switching element (4) to avoid a switching arc, there being provided an electronic control unit (5) configured such that one or more signals are received by the control unit, and the load breaker arrangement (1) being configured such that in at least one current-carrying line of the DC current circuit there is galvanic separation by a switching contact that is automatically controllable by the control unit (5) in the switched-off condition and one or more control signals being transmitted to the load breaker arrangement (1) and a semiconductor switching element (4) interrupting the DC current so that the switching contact is de-energized, whereby the signals are flaw signals that are received in case of a flaw in the PV generator, inverter or on the AC side, the DC current circuit being automatically switched on or off by the control signals in case of at least one flaw, said arrangement being configured such that, during switch off, said semiconductor switching element (4) is at first closed in a first step, the switching contacts (K1, K2) of a first switching means are opened in a second step for the DC current to flow through said semiconductor switching element (4), said semiconductor switching element (4) being again opened in a third step and switching contacts (K1, K2) of a second switching means being opened in order to cause galvanic separation to occur and that an additional manually operable load breaker (8) is connected, said manually operable load breaker (8) being a manually breakable DC current connecting system with plug contacts for photovoltaic plants that is provided with an electronic arc quenching system.

摘要翻译： 本发明的主题是一种用于在具有半导体开关元件（4）的光伏电站中接通和断开DC电流电路的DC电流的负载断路器装置（1），以避免开关电弧， 电子控制单元（5）被配置为使得一个或多个信号由控制单元接收，并且负载断路器装置（1）被配置为使得在DC电流电路的至少一个载流线路中存在电隔离 切换触点，其在关闭状态下由控制单元（5）自动控制，并且一个或多个控制信号被传送到负载断路器装置（1）以及中断DC电流的半导体开关元件（4），使得 开关触点被断电，由此信号是在PV发电机，逆变器或交流侧发生缺陷的情况下接收的缺陷信号，直流电流电路自动开启 在至少一个缺陷的情况下，通过控制信号进行打开或关闭，所述布置被配置为使得在关闭期间，所述半导体开关元件（4）在第一步骤中首先关闭，所述开关触点（K1，K2 第一开关装置在第二步骤中打开以使直流电流流过所述半导体开关元件（4），所述半导体开关元件（4）在第三步骤中再次断开，并且开关触点（K1，K2）为 打开第二开关装置以便发生电流分离，并且连接附加的可手动操作的负载断路器（8），所述可手动操作的负载断路器（8）是具有用于光伏电站的插头触点的手动可断开DC电流连接系统 设有电子灭弧系统。

公开(公告)号：US08482936B2

公开(公告)日：2013-07-09

申请号：US13273512

申请日：2011-10-14

申请人： Andreas Falk ,  Joachim Laschinski ,  Oliver Arend ,  Peter Simon ,  Wolfgang Reichenbaecher ,  Frank Greizer

发明人： Andreas Falk ,  Joachim Laschinski ,  Oliver Arend ,  Peter Simon ,  Wolfgang Reichenbaecher ,  Frank Greizer

IPC分类号： H02M5/42 ,  H02M3/24

CPC分类号： H02J3/383 ,  Y02E10/563

摘要： A method of connecting a photovoltaic device to an AC power grid through an inverter includes monitoring a DC voltage at an input of an inverter, and activating the inverter when the monitored DC voltage exceeds a first predetermined threshold. The method further includes synchronizing an output voltage of the inverter with a grid voltage, connecting an output of the inverter to the AC power grid upon synchronization if the monitored DC voltage exceeds second predetermined threshold, and deactivating the inverter if a detected power being fed through the inverter falls below a predetermined power threshold while maintaining the connection between the output of the inverter and the AC power grid. Lastly, the method includes disconnecting the output of the deactivated inverter from the grid if the monitored DC voltage falls below a third predetermined threshold. Further, an apparatus that performs such functionality is also provided.

摘要翻译： 通过逆变器将光伏器件连接到交流电网的方法包括：监视逆变器的输入端的直流电压，以及当所监视的直流电压超过第一预定阈值时启动逆变器。 该方法还包括使逆变器的输出电压与电网电压同步，如果所监视的直流电压超过第二预定阈值，则在同步时将逆变器的输出连接到交流电网，并且如果检测到的功率被馈送通过则停用逆变器 在保持逆变器的输出与交流电网之间的连接的同时，逆变器下降到预定功率阈值以下。 最后，如果所监视的直流电压低于第三预定阈值，则该方法包括将停用的反相器的输出与电网断开连接。 此外，还提供了执行这种功能的装置。

公开(公告)号：US08213133B2

公开(公告)日：2012-07-03

申请号：US12286429

申请日：2008-09-30

申请人： Stefan Buchhold ,  Sven Bremicker ,  Frank Greizer ,  Günther Cramer

发明人： Stefan Buchhold ,  Sven Bremicker ,  Frank Greizer ,  Günther Cramer

IPC分类号： H02H3/00 ,  H02H7/00

CPC分类号： H01H33/596 ,  H01H9/542 ,  H01L31/02021 ,  Y02E10/50

摘要： A load breaker arrangement includes first and second input terminals, respectively, and first and second output terminals. The arrangement also includes two relays connected in series with one another, wherein the two relays are coupled between the second input terminal and the second output terminal, a semiconductor switch connected in parallel with one of the two relays, and a third relay coupled between the first input terminal and the first output terminal. A control circuit, in a load breaker mode, turns on the semiconductor switch while the two relays and the third relay are closed, then opens the one of the two relays in parallel with the semiconductor switch, then opens the semiconductor switch to break a current between the second input and second output terminals, and then opens the other of the two relays not in parallel with the semiconductor switch and opens the third relay.

摘要翻译： 负载断路器装置分别包括第一和第二输入端子以及第一和第二输出端子。 该装置还包括彼此串联连接的两个继电器，其中两个继电器耦合在第二输入端和第二输出端之间，半导体开关与两个继电器之一并联连接，第三继电器耦合在 第一输入端和第一输出端。 在负载断路器模式下，控制电路在两个继电器和第三继电器闭合的同时接通半导体开关，然后将两个继电器中的一个与半导体开关并联，然后打开半导体开关以断开电流 在第二输入端和第二输出端之间，然后打开与半导体开关不并联的两个继电器中的另一个，并打开第三继电器。

公开(公告)号：US08053930B2

公开(公告)日：2011-11-08

申请号：US12484558

申请日：2009-06-15

申请人： Guenther Cramer ,  Bernd Engel ,  Frank Greizer ,  Joachim Laschinski

发明人： Guenther Cramer ,  Bernd Engel ,  Frank Greizer ,  Joachim Laschinski

IPC分类号： H02J3/00 ,  H01F30/12 ,  H01F38/38

CPC分类号： H02J3/383 ,  Y02E10/563 ,  Y10T307/50 ,  Y10T307/707

摘要： A solar power plant with a plurality of photovoltaic modules for generating a power to be fed in a multi-phase grid, several photovoltaic strings, which are allocated to different phases, being connected to a primary side of a mains transformer and at least one inverter for converting the direct voltage generated by the photovoltaic modules into an alternating mains voltage conforming to the grid being provided and said mains transformer being provided with a neutral conductor and with a grounded terminal, is intended to be improved in such a manner that the life of the photovoltaic modules, in particular in case of thin-film modules, is increased, allowing for high conversion efficiency of the inverters at low wiring costs. This is achieved in that an additional direct voltage source is inserted between the neutral conductor and ground in such a manner that the potential of the photovoltaic strings is displaced and that a bias voltage is set, which is different from zero volt.

摘要翻译： 一种具有多个光伏模块的太阳能发电厂，其用于产生在多相电网中供电的功率，分配给不同相的几个光伏串连接到电力变压器的初级侧，并且至少一个逆变器 用于将由光伏模块产生的直流电压转换成符合提供的电网的交流电源电压，并且所述电源变压器设置有中性导体和接地端子，旨在以这样的方式改进： 特别是在薄膜模块的情况下，光伏模块被增加，从而能够以较低的布线成本实现逆变器的高转换效率。 这是通过在中性导体和地之间插入附加的直流电压源，使得光伏电池的电位发生偏移，并设定不同于零伏特的偏置电压。

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。

公开(公告)号：US08570692B2

公开(公告)日：2013-10-29

申请号：US13305101

申请日：2011-11-28

申请人： Andreas Jeppe ,  Henrik Wolf ,  Torben Westphal ,  Sven Bremicker ,  Frank Greizer ,  Adrian Haering

发明人： Andreas Jeppe ,  Henrik Wolf ,  Torben Westphal ,  Sven Bremicker ,  Frank Greizer ,  Adrian Haering

IPC分类号： H02H7/00

CPC分类号： H02H7/1222 ,  H02H3/04 ,  H02H9/042 ,  Y02E10/56

摘要： In an overvoltage protection apparatus before an inverter configured to feed electric energy from a DC voltage source into an AC power grid, the overvoltage protection apparatus includes a DC voltage input stage. The DC voltage input stage includes at least two current-carrying lines and an EMC filter including interference suppressing capacitors and interference suppressing inductors, and surge arrestors configured to divert overvoltages with respect to ground are connected to the current-carrying lines after the EMC filter, from a point of view of the DC voltage source.

摘要翻译： 在逆变器被配置为将电能从直流电压源馈送到交流电网中的过电压保护装置中，过电压保护装置包括直流电压输入级。 直流电压输入级包括至少两条载流线路和包括干扰抑制电容器和干扰抑制电感器的EMC滤波器，以及配置成将过电压相对于地面转移的浪涌抑制器在EMC滤波器之后连接到载流线路， 从直流电压源的角度来看。

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。

公开(公告)号：US20120001491A1

公开(公告)日：2012-01-05

申请号：US13228596

申请日：2011-09-09

申请人： Guenther Cramer ,  Bernd Engel ,  Frank Greizer ,  Joachim Laschinski

发明人： Guenther Cramer ,  Bernd Engel ,  Frank Greizer ,  Joachim Laschinski

IPC分类号： H02J1/00 ,  H02J1/10

CPC分类号： H02J3/383 ,  Y02E10/563 ,  Y10T307/50 ,  Y10T307/707

摘要： A solar power plant includes at least one photovoltaic module for generating power to be fed in a multi-phase grid. At least one inverter is provided for converting a direct voltage generated by the at least one photovoltaic module into an alternating mains voltage. A mains transformer is coupled to receive the alternating mains voltage from the inverter. The inverter is coupled to a primary side of the mains transformer. A direct voltage source coupled between an output of the at least one inverter and an input of the mains transformer such that a potential of the at least one photovoltaic module is displaced and that a bias voltage is set which is different from zero volts.

摘要翻译： 太阳能发电厂包括至少一个光伏模块，用于产生要在多相电网中馈电的功率。 提供至少一个逆变器用于将由至少一个光伏模块产生的直流电压转换成交流电源电压。 电源变压器被耦合以接收来自逆变器的交流电源电压。 逆变器耦合到电力变压器的初级侧。 耦合在所述至少一个逆变器的输出端和所述电源变压器的输入端之间的直流电压源，使得所述至少一个光伏组件的电位移位，并且设定不同于零伏特的偏置电压。