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公开(公告)号：US20210317588A1
公开(公告)日：2021-10-14
申请号：US17355565
申请日：2021-06-23
Applicant: SMA Solar Technology AG
Inventor： Andreas Falk , Christian Hardt
Abstract: A method for operating an electrolysis device, having a converter which is connected on an AC voltage side to an AC voltage grid via a decoupling inductance and draws an AC active power from the AC voltage grid, and an electrolyzer, which is connected to the converter on the DC voltage side, is provided. The method includes operating the electrolysis device, when a grid frequency corresponds to a nominal frequency of the ACT voltage grid and is substantially constant over a time period, with an electrical power which is between 50% and 100% of a nominal power of the electrolyzer, and operating the converter in a voltage-impressing manner, such that an AC active power drawn from the AC voltage grid is changed on the basis of a change and/or a rate of change of the grid frequency in the AC voltage grid.
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公开(公告)号：US11075601B2
公开(公告)日：2021-07-27
申请号：US15905002
申请日：2018-02-26
Applicant: SMA Solar Technology AG
Inventor： Andreas Falk
Abstract: A solar module includes one or more photovoltaic (PV) modules, a short-circuit switch connected in parallel with at least one of the one or PV modules, and a control unit connected in parallel with the short-circuit switch. The at least one of the one or more PV modules supplies electrical power to the control unit and is connectable via a first and a second module terminal to further solar modules to form a string. The control unit is configured to actuate the short-circuit switch depending on an insulation voltage dropped between a ground potential reference terminal of the solar module and one of the first and second module terminals.
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公开(公告)号：US20180191293A1
公开(公告)日：2018-07-05
申请号：US15905002
申请日：2018-02-26
Applicant: SMA Solar Technology AG
Inventor： Andreas Falk
Abstract: A solar module includes one or more photovoltaic (PV) modules, a short-circuit switch connected in parallel with at least one of the one or PV modules, and a control unit connected in parallel with the short-circuit switch. The at least one of the one or more PV modules supplies electrical power to the control unit and is connectable via a first and a second module terminal to further solar modules to form a string. The control unit is configured to actuate the short-circuit switch depending on an insulation voltage dropped between a ground potential reference terminal of the solar module and one of the first and second module terminals.
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54.发明申请公开(公告)号：US20180026448A1
公开(公告)日：2018-01-25
申请号：US15715573
申请日：2017-09-26
Applicant: SMA Solar Technology AG
Inventor： Andreas Falk
CPC classification number: H02J3/383 , G05F1/10 , H02M7/54 , Y02E10/563
Abstract: A method for connecting an energy generation installation to a medium-voltage grid includes determining a calibration factor for adjusting first voltage values to second voltage values by a controller of the energy generation installation. During an idle state of a medium-voltage transformer, the first voltage values are detected at a capacitive voltage divider, arranged on the medium-voltage side of the medium-voltage transformer, and the second voltage values are detected by a voltage detection means, arranged on the low-voltage side of the medium-voltage transformer. The method further includes closing a circuit breaker arranged on the medium-voltage side of the medium-voltage transformer by the controller of the energy generation installation, when voltage values determined at the capacitive voltage divider exceed a first threshold value after the calibration factor has been applied.
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Patent Agency Ranking
55.发明授权Distributed detection of leakage current and fault current, and detection of string faults 有权泄漏电流和故障电流的分布式检测，以及串故障检测公开(公告)号：US09594126B2
公开(公告)日：2017-03-14
申请号：US14607151
申请日：2015-01-28
Applicant: SMA Solar Technology AG
Inventor： Andreas Falk , Mario Willenberg
CPC classification number: G01R31/40 , G01R31/025 , H01L31/02021 , H02H3/337 , H02H7/122 , H02H7/20 , H02S50/00 , H02S50/10 , Y02E10/50
Abstract: For monitoring an inverter that includes separate input-side connectors for multiple direct-current generators with regard to the occurrence of a critical fault current, differential currents in at last two pairs of input lines are measured separately in the inverter. The at last two pairs of input lines conduct the currents that are fed in at different input-side connectors, and all pairs of input lines in their entirety transmit all currents that are fed in at the connectors. The differential currents are compared with a limit value separately for each pair of input lines. A case of the limit value being exceeded is recognized as a fault. In addition, a sum of simultaneously occurring differential currents in all pairs of input lines is determined and the sum is compared with a further limit value, wherein a case of the further limit value being exceeded is also recognized as a fault.
Abstract translation: 为了监测一个逆变器，包括关于发生临界故障电流的多个直流发电机的单独的输入侧连接器，最后两对输入线路中的差分电流在逆变器中单独测量。 最后两对输入线传导在不同输入侧连接器馈送的电流，并且所有输入线对全部传输在连接器处馈送的所有电流。 差分电流与每对输入线分别与极限值进行比较。 超过极限值的情况被认定为故障。 此外，确定所有输入线对中同时出现的差分电流的总和，并将和与另外的限制值进行比较，其中超过另外的限制值的情况也被认为是故障。
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公开(公告)号：US20160006371A1
公开(公告)日：2016-01-07
申请号：US14856831
申请日：2015-09-17
Applicant: SMA Solar Technology AG
Inventor： Karl Nesemann , Andreas Falk , Henning Schneider
Abstract: An inverter has an inverter bridge connected between two DC busbars on the input side and connected to an AC output on the output side. The two DC busbars run, in a manner overlapping one another, in planes which are parallel to one another. The inverter bridge has a subcircuit having a plurality of semiconductor switches between the AC output and each DC busbar. Semiconductor modules which form the two subcircuits are connected, in a manner arranged beside one another, to the two DC busbars and to the AC output via connections. A connection element which leads to the AC output begins on that side of the DC busbar which faces the semiconductor modules in a region overlapped by the DC busbars and connects the semiconductor modules of the two subcircuits to one another there.
Abstract translation: 逆变器具有连接在输入侧的两个直流母线之间并连接到输出侧的交流输出的逆变桥。 两个直流母线以彼此重叠的方式在彼此平行的平面中运行。 逆变桥具有在AC输出和每个DC母线之间具有多个半导体开关的子电路。 形成两个子电路的半导体模块以彼此排列的方式被连接到两个DC母线和经由连接到AC输出端。 导致AC输出的连接元件从与DC母线重叠的区域中的面向半导体模块的DC母线的一侧开始，并将两个子电路的半导体模块彼此连接。
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57.发明授权Electrical connection between two busbars made of flat conductors and of an insulating layer disposed between the conductors 有权由扁平导体制成的两个汇流排与布置在导体之间的绝缘层之间的电气连接公开(公告)号：US09071028B2
公开(公告)日：2015-06-30
申请号：US13875678
申请日：2013-05-02
Applicant: SMA Solar Technology AG
Inventor： Andreas Falk , Philipp Werb
CPC classification number: H01R25/162 , H01G4/228 , H01R4/44
Abstract: 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.
Abstract translation: 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。
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58.发明申请DISTRIBUTED DETECTION OF LEAKAGE CURRENT AND FAULT CURRENT, AND DETECTION OF STRING FAULTS 有权泄漏电流和故障电流的分布式检测，以及检测到的故障公开(公告)号：US20150137850A1
公开(公告)日：2015-05-21
申请号：US14607151
申请日：2015-01-28
Applicant: SMA Solar Technology AG
Inventor： Andreas Falk , Mario Willenberg
CPC classification number: G01R31/40 , G01R31/025 , H01L31/02021 , H02H3/337 , H02H7/122 , H02H7/20 , H02S50/00 , H02S50/10 , Y02E10/50
Abstract: For monitoring an inverter that includes separate input-side connectors for multiple direct-current generators with regard to the occurrence of a critical fault current, differential currents in at last two pairs of input lines are measured separately in the inverter. The at last two pairs of input lines conduct the currents that are fed in at different input-side connectors, and all pairs of input lines in their entirety transmit all currents that are fed in at the connectors. The differential currents are compared with a limit value separately for each pair of input lines. A case of the limit value being exceeded is recognized as a fault. In addition, a sum of simultaneously occurring differential currents in all pairs of input lines is determined and the sum is compared with a further limit value, wherein a case of the further limit value being exceeded is also recognized as a fault.
Abstract translation: 为了监测一个逆变器，包括关于发生临界故障电流的多个直流发电机的单独的输入侧连接器，最后两对输入线路中的差分电流在逆变器中单独测量。 最后两对输入线传导在不同输入侧连接器馈送的电流，并且所有输入线对全部传输在连接器处馈送的所有电流。 差分电流与每对输入线分别与极限值进行比较。 超过极限值的情况被认定为故障。 此外，确定所有输入线对中同时出现的差分电流的总和，并将和与另外的限制值进行比较，其中超过另外的限制值的情况也被认为是故障。
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59.发明申请公开(公告)号：US20130271888A1
公开(公告)日：2013-10-17
申请号：US13862638
申请日：2013-04-15
Applicant: SMA SOLAR TECHNOLOGY AG
Inventor： Andreas Falk , Gerold Schulze , Volker Bergs
IPC: H02H3/02
CPC classification number: H02H3/02 , H01L31/02021 , H02H3/18 , H02H9/041 , Y02E10/50
Abstract: The disclosure relates to a PV system including at least one inverter coupled to a grid via an AC disconnecting element and at least one transformer. The PV system includes at least one PV sub-generator having at least one PV string connected to a DC connection region of the inverter via DC lines. The PV system includes protection devices including a DC short-circuiting switch for short-circuiting the at least one PV string and a reverse-current protection element connected downstream thereof. The protection device includes an AC short-circuiting switch arranged upstream of the AC disconnecting element.
Abstract translation: 本公开涉及一种PV系统，其包括经由AC断开元件和至少一个变压器耦合到电网的至少一个逆变器。 PV系统包括至少一个PV子发生器，其具有经由DC线路连接到逆变器的DC连接区域的至少一个PV串。 PV系统包括保护装置，包括用于短路至少一个PV串的DC短路开关和与其下游连接的反向电流保护元件。 保护装置包括设置在交流隔离元件上游的交流短路开关。
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