公开(公告)号：US20090201706A1

公开(公告)日：2009-08-13

申请号：US12378913

申请日：2009-02-20

申请人： Peter Zacharias ,  Benjamin Sahan

发明人： Peter Zacharias ,  Benjamin Sahan

IPC分类号： H02M7/00

CPC分类号： H02J3/383 ,  H02M7/48 ,  H02M7/487 ,  H02M2001/007 ,  Y02E10/563 ,  Y10T307/74

摘要： The apparatus for feeding electrical energy into a power grid (8) with a DC voltage converter (2) intended for connection to a DC voltage generator (1) and with an inverter (3) connected thereto and intended for connection to a power grid (8), wherein the inverter contains a bipolar voltage intermediate circuit with two capacitors (C1, C2) that are placed in series and are connected together at a ground terminal (E3) intended for connection to a terminal of the DC voltage generator (1). The DC voltage converter (2) comprises at least two diodes (D3, D4), one switch and one storage choke (16) which is charged by the DC voltage generator (1) when the switch is closed and is discharged via the capacitors (C1, C2) and the diodes (D3, D4) when the switch is open. On the one side, the storage choke (16) forms, together with two switches (S3, S4), a first electric circuit intended for charging said storage choke (16), the electric circuit being adapted for connection to the DC voltage generator (1) by closing the switches (S3, S4) and that, on the other side, it lies, together with the two diodes (D3, D4) and the two capacitors (C1, C2), in a second electric circuit intended for simultaneously discharging of the storage choke (16) via both capacitors (C1, C2) and diodes (D3, D4), the second electric circuit being made operative by opening the switches (S3, S4).

摘要翻译： 用于将电能馈送到具有用于连接到直流电压发生器（1）的直流电压转换器（2）和与其连接并用于连接到电网的逆变器（3）的电网（8）的装置 8，如权利要求8所述的逆变器，其特征在于，所述逆变器包含双极性电压中间电路，所述双极性电压中间电路具有串联放置并连接在所述直流电压发生器（1）的端子的接地端子（E3）上的两个电容器（C1，C2） 。 直流电压转换器（2）包括至少两个二极管（D3，D4），一个开关和一个存储扼流器（16），该开关和一个存储扼流器（16）在开关闭合时由直流电压发生器（1）充电并通过电容器 C1，C2）和二极管（D3，D4）。 一方面，存储扼流器（16）与两个开关（S3，S4）一起形成用于对所述存储扼流器（16）充电的第一电路，所述电路适于连接到所述直流电压发生器（ 1）通过闭合开关（S3，S4），另一侧与两个二极管（D3，D4）和两个电容器（C1，C2）一起放置在同时用于第二电路中 通过两个电容器（C1，C2）和二极管（D3，D4）对存储扼流器（16）进行放电，第二电路通过打开开关（S3，S4）而工作。

公开(公告)号：US20090180262A1

公开(公告)日：2009-07-16

申请号：US12315021

申请日：2008-11-25

申请人： Hannes Knopf ,  Frank Lampe

发明人： Hannes Knopf ,  Frank Lampe

IPC分类号： H05K1/18

CPC分类号： H02M7/003

摘要： The invention is directed to an inverter with a board for receiving electric and electronic component parts by arranging at least one DIN rail relay onto the board (5) of the inverter.

摘要翻译： 本发明涉及一种具有板的逆变器，该板用于通过将至少一个DIN导轨继电器布置在逆变器的板（5）上来接收电​​和电子部件。

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：US20090034304A1

公开(公告)日：2009-02-05

申请号：US12218018

申请日：2008-07-10

申请人： Bernd Engel ,  Regine Mallwitz ,  Peter Zacharias

发明人： Bernd Engel ,  Regine Mallwitz ,  Peter Zacharias

IPC分类号： H02M7/48

CPC分类号： H02J3/383 ,  H02M3/158 ,  H02M2001/007 ,  H02M2001/009 ,  Y02B70/1425 ,  Y02E10/563

摘要： An inverter (1) for a grounded direct voltage source, in particular for a photovoltaic generator (2), a battery or a fuel cell, for converting the direct voltage into an alternative voltage with a DC-DC converter (3) and a pulse inverter that is supplied by said DC-DC converter (3), said DC-DC converter (3) being configured to be an oscillating circuit inverter and comprising a series resonant oscillating circuit, said DC-DC converter (3), which is configured to be an oscillating circuit inverter, being configured to be a series-compensated oscillating circuit inverter with a choke (L1) and a series-mounted capacitor array consisting of two or several oscillating circuit capacitors, a rectifier bridge branch including 2 diodes (D3, D4; D5, D6, . . . ), being connected to each of the partial oscillating circuit capacitors, said rectifier bridge branch being connected with its positive or its negative pole to output side intermediate circuit capacitors which are preferably connected in series so that said DC-DC converter (3) delivers at least two bipolar output voltages and is combined with the pulse inverter (4) with a divided voltage intermediate circuit that is supplied from the oscillating circuit inverter.

摘要翻译： 一种用于接地的直流电压源的逆变器（1），特别是用于光伏发电机（2），电池或燃料电池，用于利用DC-DC转换器（3）将脉冲转换为替代电压 由所述DC-DC转换器（3）提供的逆变器，所述DC-DC转换器（3）被配置为振荡电路逆变器，并且包括串联谐振振荡电路，所述DC-DC转换器（3）被配置 作为具有扼流圈（L1）和由两个或多个振荡电路电容器组成的串联安装的电容器阵列的串联补偿的振荡电路逆变器，包括2个二极管（D3， D4; D5，D6 ...），连接到每个部分振荡电路电容器，所述整流桥分支与其正极或负极连接到输出侧中间电路电容器，其优选地以s连接 使得所述DC-DC转换器（3）输送至少两个双极性输出电压，并且与从脉冲电路逆变器提供的分压电压中间电路与脉冲逆变器（4）组合。

公开(公告)号：US07463489B2

公开(公告)日：2008-12-09

申请号：US11788341

申请日：2007-04-19

申请人： Andreas Falk ,  Nafiz Yasat

发明人： Andreas Falk ,  Nafiz Yasat

IPC分类号： H05K7/20

CPC分类号： H05K7/209 ,  H05K1/144 ,  H05K7/20418

摘要： The object of the invention is a power inverter, the bottom of the housing (1) of the power inverter being configured to be stepped, cooling bodies (10, 11) being disposed on the exterior face of the stepped bottom, at least two printed circuit boards (6, 8) that overlap each other and communicate with the respective one of the cooling bodies (10, 11) through semiconductor components being provided.

摘要翻译： 本发明的目的是电力逆变器，电力逆变器的壳体（1）的底部被构造为阶梯状，设置在阶梯状底部的外表面上的冷却体（10,11），至少两个印刷 电路板（6,8）彼此重叠并且通过提供的半导体部件与相应的一个冷却体（10,11）连通。

公开(公告)号：US12132443B2

公开(公告)日：2024-10-29

申请号：US17865606

申请日：2022-07-15

申请人： SMA Solar Technology AG

发明人： Marcel Kratochvil ,  Rainer Schmitt ,  Torsten Otto ,  Sybille Pape

IPC分类号： G01R31/66 ,  H02J3/14 ,  H02J3/38 ,  H02S40/32 ,  H02S40/36 ,  H02S50/00

CPC分类号： H02S50/00 ,  G01R31/66 ,  H02J3/14 ,  H02J3/381 ,  H02S40/32 ,  H02S40/36 ,  H02J2300/24

摘要： The disclosure describes a method for detecting an arc in a direct-current (DC) circuit comprising a DC load, a DC source supplying the DC load, and a circuit arrangement arranged between the DC source and the DC load. A power flow P between an input and an output of the circuit arrangement is suppressed by means of a switching circuit through cyclical interruption such that the power flow P is enabled in an active time window with the first period Δt1 and the power flow P is suppressed in an inactive time window with the second period Δt2. Via detection of an input current Iin flowing at the input and/or an input voltage Uin applied to the input and comparison of values of the input current Iin and/or input voltage Uin detected in the inactive time window with a current threshold value ITH or a voltage threshold value UTH an arc presence criterion is signaled if the input current Iin detected in the inactive time window falls below the current threshold value ITH and/or the input voltage Uin detected in the inactive time window does not exceed the voltage threshold value UTH. The application also describes a circuit arrangement for detecting an arc and a photovoltaic (PV) inverter including such a circuit arrangement.

公开(公告)号：US12081031B2

公开(公告)日：2024-09-03

申请号：US17993007

申请日：2022-11-23

申请人： SMA Solar Technology AG

发明人： Andreas Knobloch

IPC分类号： H02J3/38 ,  H02J1/10 ,  H02J1/14 ,  H02J3/32 ,  H02J7/35

CPC分类号： H02J3/381 ,  H02J1/102 ,  H02J1/14 ,  H02J3/32 ,  H02J7/35 ,  H02J2300/26 ,  H02J2300/28

摘要： A method is disclosed for stabilizing a DC voltage in a DC grid that includes a DC bus connected to a higher-order grid and to which an energy generating system and at least one load are connected.

公开(公告)号：US20240235195A1

公开(公告)日：2024-07-11

申请号：US18612637

申请日：2024-03-21

申请人： SMA Solar Technology AG

发明人： Sebastian Umlauf

IPC分类号： H02J3/01 ,  H01F27/26 ,  H01F27/28 ,  H01F27/40 ,  H02J3/24 ,  H02J3/26 ,  H02J3/36 ,  H02J3/38 ,  H02M7/44

CPC分类号： H02J3/01 ,  H01F27/26 ,  H01F27/28 ,  H01F27/40 ,  H02J3/241 ,  H02J3/26 ,  H02J3/38 ,  H02M7/44 ,  H02J3/36

摘要： The disclosure relates to a power electronics device having at least two inverters and a transformer apparatus having a core arrangement, at least one primary winding and at least one secondary winding that wind around the core arrangement at least in sections.

公开(公告)号：US20240146241A1

公开(公告)日：2024-05-02

申请号：US18407589

申请日：2024-01-09

申请人： SMA Solar Technology AG

发明人： Martin Jilg

IPC分类号： H02S50/10 ,  H02J3/38 ,  H02J3/46 ,  H02M1/32 ,  H02S40/32

CPC分类号： H02S50/10 ,  H02J3/381 ,  H02J3/46 ,  H02M1/32 ,  H02S40/32 ,  H02J2300/24

摘要： A method for acquiring a characteristic curve of a PV generator is disclosed. In a power generation installation, an output side of each PV generator is connected via an assigned DC-DC converter, in parallel to a DC link as the input element of a DC-AC converter. The method includes reducing a cumulative output power of those DC-DC converters for which the associated PV generators are not intended for acquiring the characteristic curve during the acquisition of the characteristic curve of the PV generator to be scanned to ensure that the sum of the reduced cumulative output power and of the expected maximum power of the PV generator to be scanned does not exceed a nominal power of the DC-AC converter, and subsequently acquiring the characteristic curve of the PV generator to be scanned.

公开(公告)号：US20230396078A1

公开(公告)日：2023-12-07

申请号：US18452593

申请日：2023-08-21

申请人： SMA Solar Technology AG

发明人： Claus Allert ,  Aleksandra-Sasa Bukvic-Schäfer

IPC分类号： H02J7/00 ,  H01M10/42 ,  H01M10/44

CPC分类号： H02J7/0014 ,  H02J7/00032 ,  H02J7/0048 ,  H01M10/425 ,  H01M10/441 ,  H02J2207/20 ,  H01M2010/4271

摘要： The application describes a transfer circuit or system with a first DC bus for connecting a plurality of battery racks to an inverter bridge for a first power exchange with an AC grid. The transfer circuit or system has a second DC bus which is connected to the first DC bus via a DC/DC converter. The transfer circuit or system is arranged to disconnect at least one battery rack of the plurality of battery racks from the first DC bus and to connect it to the second DC bus for performing an intra-battery equalization process. The application also describes a system with a transfer unit and a method for performing an intra-battery equalization process.