公开(公告)号：US20160301312A1

公开(公告)日：2016-10-13

申请号：US15185756

申请日：2016-06-17

Applicant: SMA Solar Technology AG

Inventor： Alexander Unru ,  Martin Bock

IPC: H02M3/158 ,  H02M7/537

CPC classification number: H02M3/158 ,  H02J3/385 ,  H02M1/32 ,  H02M3/156 ,  H02M7/537 ,  H02M7/53871 ,  H02M2001/007 ,  H02M2001/327 ,  Y02E10/58

Abstract: A method and corresponding system for operating an inverter includes setting an input voltage (UPV) of the inverter by an input-side DC-DC converter and/or an output-side inverter bridge, wherein the input voltage (UPV) corresponds to an MPP voltage (UMPP) at which a generator connectable on the input side outputs a maximum electrical power, and determining a first temperature value (TDCDC) in the DC-DC converter and a second temperature value (TDCAC) in the inverter bridge. The method or corresponding system further includes changing the input voltage (UPV) of the inverter with respect to the MPP voltage (UMPP) if at least one of the determined temperature values (TDCDC, TDCAC) exceeds a limit value (Tmax,DCDC, Tmax,DCAC) assigned to the respective temperature values (TDCDC, TDCAC), increasing the input voltage (UPV) with respect to the MPP voltage (UMPP) if an exceedance of the limit value (Tmax,DCDC) for the first temperature value (TDCDC) in the DC-DC converter is determined and/or the MPP voltage (UMPP) lies below a predefined limit voltage (Ulimit), and otherwise reducing the input voltage (UPV) ith respect to the MPP voltage (UMPP).

Abstract translation: 用于操作逆变器的方法和相应的系统包括通过输入侧DC-DC转换器和/或输出侧逆变桥来设置逆变器的输入电压（UPV），其中输入电压（UPV）对应于MPP 电压（UMPP），其中在输入侧可连接的发电机输出最大电力，并确定DC-DC转换器中的第一温度值（TDCDC）和逆变器桥中的第二温度值（TDCAC）。 如果所确定的温度值（TDCDC，TDCAC）中的至少一个超过极限值（Tmax，DCDC，Tmax），则该方法或对应系统还包括相对于MPP电压（UMPP）改变逆变器的输入电压（UPV） 分配给相应温度值（TDCDC，TDCAC）的DCAC），相对于MPP电压（UMPP）增加输入电压（UPV），如果超过第一温度值（TDCDC）的极限值（Tmax，DCDC） ）和/或MPP电压（UMPP）低于预定极限电压（Ulimit），否则降低相对于MPP电压（UMPP）的输入电压（UPV）。

公开(公告)号：US20160254783A1

公开(公告)日：2016-09-01

申请号：US15154136

申请日：2016-05-13

Applicant: SMA SOLAR TECHNOLOGY AG

Inventor： ALEXANDER UNRU ,  HARALD DRANGMEISTER ,  TOBLAS MUELLER ,  PABLO CORREA VASQUEZ

IPC: H02S50/00 ,  G01R31/42 ,  G01R31/02

CPC classification number: H02S50/00 ,  G01R31/028 ,  G01R31/42 ,  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).

Abstract translation: 一种用于确定包括多相逆变器的光伏系统的电容的电容值的方法，所述多相逆变器在其交流电流侧包括输出电流滤波器，并且经由开关元件连接到多相能量供应网络，并且与至少一个中间电路 提供其直流侧的电容。 该方法包括通过打开开关元件将光伏系统与能量供应网络断开; 操作所述逆变器以在所述断开连接之后建立岛状网络，其中将同相AC电压施加到所述多相逆变器的逆变器桥的至少两个输出端，并且在所述至少一个中间电路电容 和所述输出电流滤波器的至少一个滤波电容; 测量在逆变器桥的输出处流动的电流（Ia，Ib，Ic）和存在于电容之一处的至少一个电压，以及使用所确定的电压和测量的电流来确定至少一个电容的电容值（ Ia，Ib，Ic）。

公开(公告)号：US09420732B2

公开(公告)日：2016-08-16

申请号：US14568233

申请日：2014-12-12

Applicant: SMA SOLAR TECHNOLOGY AG

Inventor： Piyush Chandrakant Desai ,  Stephen Ray Larsen ,  Orges Gjini ,  Matthew Donovan Gray

IPC: H05K7/20 ,  H05K7/14 ,  H02S40/34 ,  H02M7/00

CPC classification number: H05K7/20927 ,  H02M7/003 ,  H02S40/345 ,  H05K7/1432 ,  H05K7/20263 ,  H05K7/20272

Abstract: A solar inverter is provided having a cooling module, a DC module, an inverter module and an AC module provided side-by-side within a chassis. The DC module includes an input accessible from a first side of the chassis and a disconnection switch on a second side of the chassis, with the input being configured to be connected to a DC solar power source. The AC module includes an output accessible from the first side of the chassis and a disconnection switch provided on the second side of the chassis. The cooling module is configured to pump a liquid coolant around the solar inverter in order to cool elements of the DC module, the inverter module and/or the AC module.

Abstract translation: 提供了一种太阳能逆变器，其具有在底盘内并排设置的冷却模块，DC模块，逆变器模块和AC模块。 DC模块包括可从机箱的第一侧接入的输入和在机箱的第二侧的断开开关，其中输入被配置为连接到DC太阳能电源。 AC模块包括可从机箱的第一侧访问的输出和设置在机箱的第二侧上的断开开关。 冷却模块被配置为泵送围绕太阳能逆变器的液体冷却剂，以便冷却DC模块，逆变器模块和/或AC模块的元件。

公开(公告)号：USD756921S1

公开(公告)日：2016-05-24

申请号：US29503924

申请日：2014-09-30

Applicant: SMA Solar Technology AG

Designer： Alexander Benn ,  Christof Wetzel

公开(公告)号：US20150288185A1

公开(公告)日：2015-10-08

申请号：US14734354

申请日：2015-06-09

Applicant: SMA Solar Technology AG

Inventor： Florian Ellerkamp ,  Aleksandra-Sasa Bukvic-Schaefer ,  Klaus Rigbers ,  Claus Allert

IPC: H02J3/06 ,  H02J7/35

CPC classification number: H02J3/06 ,  H02J3/32 ,  H02J3/382 ,  H02J3/383 ,  H02J7/35 ,  H02J13/0062 ,  Y02E10/563 ,  Y02E10/566 ,  Y02E40/72 ,  Y02E60/722 ,  Y02E60/7838 ,  Y02E70/30 ,  Y04S10/123 ,  Y04S10/14 ,  Y04S40/124 ,  Y10T307/336

Abstract: An inverter apparatus includes an input stage receiving DC electric power from a DC power generator for loading a DC voltage link, a DC/AC converter connected to the DC voltage link and feeding AC electric power into a power grid. The apparatus further includes a bidirectional connection for loading a battery out of the DC voltage link and for loading the DC voltage link out of the battery, and a controller operating the DC/AC converter and the bidirectional connection. The controller receives present values of relevant parameters of the battery including working data at least related to a state of charge and safety data indicating a safety state of the battery from a battery monitoring unit. The controller, in operating the bidirectional connection, considers the working data and is commanded by the safety data.

Abstract translation: 逆变器装置包括从用于加载直流电压链的直流发电机接收直流电力的输入级，连接到直流电压链路的直流/交流转换器，并将交流电力馈送到电网中。 该装置还包括双向连接，用于将电池装载到直流电压链路外并将直流电压链路装载出电池，以及控制器操作DC / AC转换器和双向连接。 控制器从电池监视单元接收至少与充电状态有关的工作数据和指示电池的安全状态的安全数据的电池的相关参数的当前值。 控制器在操作双向连接时，考虑工作数据并由安全数据命令。

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。

公开(公告)号：US09136688B2

公开(公告)日：2015-09-15

申请号：US13974194

申请日：2013-08-23

Applicant: SMA Solar Technology AG

Inventor： Joachim Laschinski ,  Marcel Kratochvil ,  Markus Hopf ,  Andreas Falk

IPC: H02H3/00 ,  H02H1/00 ,  H02J3/38 ,  H02H3/16 ,  H01L31/02

CPC classification number: H02H1/0015 ,  H01L31/02021 ,  H02H3/16 ,  H02J3/383

Abstract: The method of detecting an arc fault in a power circuit includes determining a first signal related to current flowing in the power circuit is determined and analyzing the first signal to determine whether the signal indicates the presence of an electric arc in the power circuit. In case the first signal indicates the presence of an electric arc in the power circuit, means for suppressing an electric arc are activated. A second signal related to current flowing in the power circuit is then determined and analyzed. An occurrence of an arc fault in the power circuit is signaled if the second signal does not indicate the presence of an electric arc. The system for detecting an arc fault is designed to perform a corresponding method.

Abstract translation: 检测电源电路中的电弧故障的方法包括：确定与在电源电路中流动的电流相关的第一信号，并分析第一信号，以确定信号是否指示电源电路中存在电弧。 在第一信号表示在电源电路中存在电弧的情况下，激活用于抑制电弧的装置。 然后确定和分析与在电源电路中流动的电流有关的第二信号。 如果第二信号不表示电弧的存在，则发出电源电路中的电弧故障的发生。 用于检测电弧故障的系统被设计成执行相应的方法。

公开(公告)号：US09046588B2

公开(公告)日：2015-06-02

申请号：US14105377

申请日：2013-12-13

Applicant: SMA Solar Technology AG

Inventor： Holger Behrends ,  Sebastian Bieniek ,  Thorsten Buelo ,  Markus Hopf ,  Gerd Bettenwort ,  Marcel Kratochvil ,  Christopher Merz ,  Oliver Prior

IPC: H02H3/00 ,  G01R31/40 ,  H02H1/00 ,  H01L31/02 ,  H02S50/10 ,  H02H7/20

CPC classification number: G01R31/40 ,  H01L31/02021 ,  H02H1/0015 ,  H02H7/20 ,  H02S50/10 ,  Y02E10/50

Abstract: A method for detecting an arc fault in a photovoltaic power circuit includes operating a photovoltaic generator at a first working point. A first signal related to a DC-current and/or a DC-voltage in the power circuit is determined. The first signal is analyzed and it is determined whether the signal indicates the presence of an electric arc in the power circuit. If so, the photovoltaic generator is operated at a second working point and a second signal related to the DC-current and/or the DC-voltage is determined. The first and second signals are then compared; and the occurrence of an arc fault in the power circuit is selectively signaled based on the comparison.

Abstract translation: 一种用于检测光伏电力电路中的电弧故障的方法包括在第一工作点处操作光伏发电机。 确定与电源电路中的直流电流和/或直流电压有关的第一信号。 对第一信号进行分析，确定信号是否指示电源电路中存在电弧。 如果是这样，则光伏发电机在第二工作点运行，并且确定与DC电流和/或DC电压相关的第二信号。 然后比较第一和第二信号; 并且基于该比较选择性地发信号通知电力电路中的电弧故障。

公开(公告)号：US20150085550A1

公开(公告)日：2015-03-26

申请号：US14492137

申请日：2014-09-22

Applicant: SMA Solar Technology AG

Inventor： Burkard Mueller ,  Jens Friebe ,  Torsten Leifert

IPC: H02M3/158 ,  H02M7/797

CPC classification number: H02M3/158 ,  H02M1/4233 ,  H02M7/538 ,  H02M7/797 ,  Y02B70/126

Abstract: A half-bridge of a bidirectional converter is divided into a first and a second conduction path connected in parallel. In each of the conduction paths a switching element and a freewheeling diode are connected in series, and the center points of the conduction paths are connected via a second inductor. The second inductor is connected in series with a first inductor which is connected to the center point of the second conduction path. The half-bridge has two operating modes. In each of the two operating modes the switching element in one of the two conduction paths is clocked at a high frequency to cause a flow of energy in one of two directions between a pair of high voltage-side connections and a pair of low voltage-side connections to the half-bridge. The two switching elements are of different types, the switching element in the first conduction path causing higher switching losses.

Abstract translation: 双向转换器的半桥被分成并联连接的第一和第二导电路径。 在每个导通路径中，开关元件和续流二极管串联连接，并且导通路径的中心点经由第二电感器连接。 第二电感器与连接到第二导电路径的中心点的第一电感器串联连接。 半桥有两种操作模式。 在两种操作模式中的每一种中，两个传导路径中的一个中的开关元件以高频率计时，以在一对高压侧连接和一对低电压侧连接之间的两个方向中的一个方向上产生能量流， 侧连接到半桥。 两个开关元件是不同类型的，第一导电路径中的开关元件导致较高的开关损耗。

公开(公告)号：US20150053251A1

公开(公告)日：2015-02-26

申请号：US14528353

申请日：2014-10-30

Applicant: SMA Solar Technology AG

Inventor： Markus Hopf

IPC: H05K5/02 ,  H05K5/00 ,  H02S40/34

CPC classification number: H05K5/0247 ,  H01R4/24 ,  H01R4/2433 ,  H01R9/2425 ,  H01R13/501 ,  H01R13/5216 ,  H02G3/16 ,  H02S40/34 ,  H05K5/0004 ,  H05K5/0221 ,  H05K5/0226

Abstract: The disclosure relates to an apparatus including a multi-part housing to be assembled around two lines and conducting a power current generated by a solar module, and an electric circuitry arranged within the housing. The apparatus further includes connection devices for connecting the electric circuitry to the two lines such that at least one component of the electric circuitry is connected in parallel to the solar module. The connection devices include insulation displacement terminals which electrically contact the two lines, and at least one cutting blade made of an electrically insulating material cutting through at least one of the two lines in assembling the multi-part housing.

Abstract translation: 本发明涉及一种装置，包括要组装在两条线上并传导由太阳能模块产生的电力电流的多部分壳体和布置在壳体内的电路。 该装置还包括用于将电路连接到两条线的连接装置，使得电路的至少一个部件与太阳能模块并联连接。 连接装置包括与两条线电接触的绝缘位移端子，以及至少一个由电绝缘材料制成的切割刀片，以在组装多部件壳体时切穿两条线中的至少一条线。