公开(公告)号：US09543088B2

公开(公告)日：2017-01-10

申请号：US14302505

申请日：2014-06-12

申请人： SMA Solar Technology AG

发明人： Christopher Merz ,  Markus Hopf

IPC分类号： H01H9/54 ,  H01H9/42 ,  H01H33/16 ,  H02M1/32 ,  H02H3/02 ,  H02H3/087 ,  H01H33/59

CPC分类号： H01H9/42 ,  H01H9/541 ,  H01H33/161 ,  H01H33/596 ,  H01H2033/163 ,  H02H3/021 ,  H02H3/087 ,  H02M1/32

摘要： The disclosure relates to a circuit arrangement for suppressing an arc occurring during a switching process, wherein a current bypass path comprises a PTC resistor connected in series with a fuse. The current bypass path is provided in parallel with a switch. The disclosure also relates to a photovoltaic power plant with a photovoltaic generator which is connected to an inverter via DC lines. In this arrangement, such a circuit arrangement is arranged in at least one of the DC lines.

摘要翻译： 本公开涉及一种用于抑制在切换过程中发生的电弧的电路装置，其中电流旁路路径包括与保险丝串联连接的PTC电阻器。 当前旁路路径与开关并联提供。 本公开还涉及具有通过DC线连接到逆变器的光伏发电机的光伏电站。 在这种布置中，这种电路布置被布置在至少一条DC线中。

公开(公告)号：US09509134B2

公开(公告)日：2016-11-29

申请号：US14277390

申请日：2014-05-14

申请人： SMA Solar Technology AG

发明人： Matthew Bermingham ,  Michael Alexander

IPC分类号： H02H7/26 ,  H02J3/38

CPC分类号： H02H7/268 ,  H01L31/02021 ,  H02J3/383 ,  Y02E10/563

摘要： A disconnect unit and an associated method in a photovoltaic system includes a plurality of input power lines configured to receive power from a photovoltaic (PV) generator, and deliver the received power to an inverter. The disconnect unit further includes a sensor configured to determine a voltage at the plurality of input power lines, and a controller configured to selectively disconnect and reconnect one or more of the plurality of input power lines based on the determined voltage.

摘要翻译： 光伏系统中的断开单元和相关联的方法包括被配置为从光伏（PV）发生器接收功率并将接收的功率传送到逆变器的多个输入电力线。 断开单元还包括被配置为确定多个输入电力线处的电压的传感器，以及被配置为基于所确定的电压来选择性地断开和重新连接多个输入电力线中的一个或多个的控制器。

公开(公告)号：US09444365B2

公开(公告)日：2016-09-13

申请号：US14260741

申请日：2014-04-24

申请人： SMA Solar Technology AG

发明人： Martin Bock ,  Tobias Mueller ,  Thomas Ortmann ,  Alexander Unru

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

CPC分类号： H02M7/42 ,  G05F1/67 ,  Y02E10/58

摘要： 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.

摘要翻译： 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。

公开(公告)号：US09300209B2

公开(公告)日：2016-03-29

申请号：US14492137

申请日：2014-09-22

申请人： SMA Solar Technology AG

发明人： Burkard Mueller ,  Jens Friebe ,  Torsten Leifert

IPC分类号： H02M7/04 ,  H02M3/158 ,  H02M7/538 ,  H02M7/797 ,  H02M1/42

CPC分类号： H02M3/158 ,  H02M1/4233 ,  H02M7/538 ,  H02M7/797 ,  Y02B70/126

摘要： 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.

摘要翻译： 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：US09124183B2

公开(公告)日：2015-09-01

申请号：US13888795

申请日：2013-05-07

申请人： SMA Solar Technology AG

发明人： Hendrik Oldenkamp

IPC分类号： H02M3/335 ,  H02M7/48 ,  H02J3/38

CPC分类号： H02M3/33507 ,  H02J3/383 ,  H02M3/335 ,  H02M7/4807 ,  Y02E10/563

摘要： A power inverter includes two input terminals, two output terminals and a resonant converter that includes a high frequency transformer having a primary winding and a secondary winding, at least one high frequency switched semiconductor power switch that connects one end of the primary winding of the high frequency transformer to one of the input terminals to provide a current path through the primary winding to the other one of the input terminals. The power inverter further includes a resonant series circuit having an inductance and a capacitance, and a high frequency rectifier that rectifies a current through the secondary winding, two output lines, and an output converter connected between the output lines of the high frequency rectifier and the two output terminals.

摘要翻译： 功率逆变器包括两个输入端子，两个输出端子和一个谐振变换器，其包括具有初级绕组和次级绕组的高频变压器，至少一个高频开关半导体功率开关，其将高次谐波的初级绕组的一端 变频器连接到一个输入端子，以提供通过初级绕组到另一个输入端子的电流路径。 电力逆变器还包括具有电感和电容的谐振串联电路和对通过次级绕组的电流进行整流的高频整流器，两个输出线和连接在高频整流器的输出线和 两个输出端子。

公开(公告)号：US09071028B2

公开(公告)日：2015-06-30

申请号：US13875678

申请日：2013-05-02

申请人： SMA Solar Technology AG

发明人： Andreas Falk ,  Philipp Werb

IPC分类号： H01R4/44 ,  H01R25/16 ,  H01G4/228

CPC分类号： H01R25/162 ,  H01G4/228 ,  H01R4/44

摘要： The disclosure relates to an electrical connection between two busbars made of flat conductors and an insulating layer disposed between the conductors at the opposite longitudinal edges of the two busbars. The two conductors of each busbar run parallel to each other at a distance on the longitudinal edge thereof, wherein a molded part made of electrically insulating material bridges the distances between the conductors of the two busbars. Electrically conductive contact elements, forced against each other but electrically insulated from each other, each contact one of the conductors of each busbar by means of structured contact surfaces and clamp the same between the element and the molded part, wherein the contact surfaces for the conductors of the two busbars including clamping protrusions running parallel to the longitudinal edges.

摘要翻译： 本公开涉及由扁平导体制成的两个母线之间的电连接以及设置在两个汇流条的相对纵向边缘处的导体之间的绝缘层。 每个母线的两个导体在其纵向边缘上一定距离地平行地延伸，其中由电绝缘材料制成的模制部件桥接两个母线的导体之间的距离。 导电接触元件彼此强制相互电绝缘，每个通过结构化接触表面接触每个母线的导体之一，并将其​​夹在元件和模制部件之间，其中导体的接触表面 两个母线包括平行于纵向边缘延伸的夹紧突起。

公开(公告)号：US09066454B2

公开(公告)日：2015-06-23

申请号：US13419905

申请日：2012-03-14

申请人： Andreas Donth ,  Thorsten Hobein ,  Bernd Gebert

发明人： Andreas Donth ,  Thorsten Hobein ,  Bernd Gebert

IPC分类号： H05K7/20 ,  H02M7/00 ,  H01L23/473

CPC分类号： H05K7/20909 ,  H02M7/003

摘要： The invention relates to an inverter with an enclosure that includes a removable hand plug which, when inserted inside the enclosure, shares an electrical connection with the inverter. The hand plug includes a fan configured to cool at least a portion of the inverter enclosure.

摘要翻译： 本发明涉及一种具有外壳的逆变器，该外壳包括可拆卸的手动插头，当插入到外壳内时，该插头与逆变器共用电气连接。 手插头包括被配置为冷却逆变器外壳的至少一部分的风扇。

公开(公告)号：US09048745B2

公开(公告)日：2015-06-02

申请号：US13425613

申请日：2012-03-21

申请人： Christian Seel ,  Lars Bethke

发明人： Christian Seel ,  Lars Bethke

IPC分类号： H02M3/335 ,  H02M1/36 ,  H02M7/48 ,  H02J3/38

CPC分类号： H02M1/36 ,  H02J3/383 ,  H02M3/33569 ,  H02M7/4807 ,  Y02E10/563

摘要： During startup of a DC/DC converter having a high-frequency transformer whose primary winding is supplied with current from an input-side DC link via an inverter bridge having pulsed switches and whose secondary winding is used to charge an output-side DC link via a rectifier bridge. The switches of the inverter bridge are operated to load the output-side DC link, in a manner that deviates from a normal operation of the switches in order to limit the currents that flow in the DC/DC converter during startup of the DC/DC converter. Particularly, the switches of the inverter bridge are operated during startup of the DC/DC converter at a pulse width that is fixed during each of a limited number of stages of the startup, and have a duty cycle that is not more than 5 percent during each of the stages of the startup.

摘要翻译： 在具有高频变压器的DC / DC转换器的启动期间，其初级绕组通过具有脉冲开关的逆变桥从输入侧DC链路提供电流，并且其次级绕组用于对输出侧DC链路充电 整流桥。 操作逆变器桥的开关以以偏离开关的正常操作的方式加载输出侧DC链路，以限制在DC / DC启动期间在DC / DC转换器中流动的电流 转换器。 特别地，逆变桥的开关在启动时在DC / DC转换器的启动期间以在启动的有限次数期间固定的脉冲宽度运行，并且具有不大于5％的占空比 每个阶段的启动。

公开(公告)号：US08975899B2

公开(公告)日：2015-03-10

申请号：US13548356

申请日：2012-07-13

申请人： Henrik Wolf ,  Thomas Wegener ,  Daniel Clemens ,  Harald Drangmeister

发明人： Henrik Wolf ,  Thomas Wegener ,  Daniel Clemens ,  Harald Drangmeister

IPC分类号： G01R31/12 ,  H02M7/48 ,  G01R31/02 ,  G01R31/42 ,  H02H7/16 ,  H02J3/38

CPC分类号： H02M7/48 ,  G01R31/028 ,  G01R31/42 ,  H02H7/16 ,  H02J3/383 ,  Y02E10/563

摘要： An inverter device for feeding electrical energy from a DC-power source into a power grid includes a pair of bus lines to be connected to the DC-power source; a plurality of capacitors connected in series between the bus lines; a surveying topology surveying an integrity of the plurality of capacitors, and to provide a signal indicating a loss of integrity of one capacitor of the plurality of capacitors; a voltmeter measuring a voltage drop over the plurality of capacitors; a DC/AC-inverter; and a controller. in case of the signal indicating a loss of integrity of one capacitor of the plurality of capacitors, the controller compares the voltage drop over the plurality of capacitors to a lost integrity threshold voltage value, and reduces a current load to the plurality of capacitors by reducing the power uptake of the DC/AC-inverter, when the voltage drop exceeds the lost integrity threshold voltage value.

摘要翻译： 用于将电能从DC电源馈送到电网的逆变器装置包括要连接到DC电源的一对总线; 在总线之间串联连接的多个电容器; 测量多个电容器的完整性的测量拓扑，并且提供指示多个电容器中的一个电容器的完整性损失的信号; 测量多个电容器上的电压降的电压表; DC / AC逆变器; 和控制器。 在信号指示多个电容器中的一个电容器的完整性损失的情况下，控制器将多个电容器上的电压降与损失的完整性阈值电压值进行比较，并且通过减少对多个电容器的电流负载来减小 当电压降超过丢失的完整性阈值电压值时，DC / AC逆变器的功率摄取。

公开(公告)号：US08922048B2

公开(公告)日：2014-12-30

申请号：US12867227

申请日：2009-02-11

申请人： Bodo Giesler

发明人： Bodo Giesler

IPC分类号： H02J3/34 ,  H02J13/00 ,  H02J3/38 ,  H04B3/54

CPC分类号： H02J13/0082 ,  H02J3/383 ,  H04B3/54 ,  H04B2203/5416 ,  Y02E10/563 ,  Y02E40/72 ,  Y02E60/7815 ,  Y02E60/7892 ,  Y04S10/123 ,  Y04S40/121 ,  Y04S40/146 ,  Y10T307/685 ,  Y10T307/707 ,  Y10T307/944

摘要： A photovoltaic (PV) sub-generator junction box (1) for a PV system (100) comprises a plurality of electric terminals (11) for optionally connecting one respective PV string (2) of one or more serially connected PV modules (3). Said PV sub-generator junction box (1) further comprises a sub-generator line terminal (12) for connecting a PV sub-generator line (4) of a remote central PV inverter (5) or connecting a PV sub-generator line (4) of an inserted PV generator junction box (6). The PV sub-generator junction box (1) also comprises an electronic control unit (10) that is connected to a central control unit (7) of the PV inverter (5) in order to exchange data (DAT0). According to the invention, the PV sub-generator junction box (1) comprises a power line modem (8) for feeding and retrieving the data (DAT) via the PV sub-generator line (4).

摘要翻译： 用于PV系统（100）的光伏（PV）子发电机接线盒（1）包括多个电端子（11），用于可选地连接一个或多个串联的PV模块（3）的一个相应的PV串（2） 。 所述PV子发电机接线盒（1）还包括用于连接远程中央PV逆变器（5）的PV子发电机线（4）或连接PV子发电机线路（2）的子发电机线路终端（12） 4）插入的光伏发电机接线盒（6）。 PV子发生器接线盒（1）还包括电子控制单元（10），其连接到PV逆变器（5）的中央控制单元（7）以便交换数据（DAT0）。 根据本发明，PV子发生器接线盒（1）包括用于经由PV子发电机线（4）馈送和检索数据（DAT）的电力线调制解调器（8）。