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公开(公告)号：US10530274B2
公开(公告)日：2020-01-07
申请号：US16294065
申请日：2019-03-06
Applicant: SMA Solar Technology AG
Inventor： Burkard Mueller , Klaus Rigbers , Wilfried Vogt
IPC: H02M7/5387 , H02M1/32 , H02J3/38
Abstract: A method for operating a transformerless inverter includes operating first and second half-bridges of the inverter using a unipolar clocking method as a first clocking method, determining a value of a grid-frequency stray current at the DC terminals of the inverter during the unipolar clocking method, and when a limit value is exceeded by the stray current value, operating the first and second half-bridges of the inverter using a stray-current-reducing clocking method as a second clocking method in which the first half-bridge provides an AC voltage at the first AC output, wherein an amplitude of the AC voltage is less than 50% of the amplitude of a voltage amplitude of the grid, and the second half-bridge provides a difference voltage between the grid voltage and the voltage provided by the first half-bridge at the first AC output.
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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
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。
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公开(公告)号：US20190207534A1
公开(公告)日：2019-07-04
申请号：US16294065
申请日：2019-03-06
Applicant: SMA Solar Technology AG
Inventor： Burkard Mueller , Klaus Rigbers , Wilfried Vogt
IPC: H02M7/5387 , H02J3/38
Abstract: A method for operating a transformerless inverter includes operating first and second half-bridges of the inverter using a unipolar clocking method as a first clocking method, determining a value of a grid-frequency stray current at the DC terminals of the inverter during the unipolar clocking method, and when a limit value is exceeded by the stray current value, operating the first and second half-bridges of the inverter using a stray-current-reducing clocking method as a second clocking method in which the first half-bridge provides an AC voltage at the first AC output, wherein an amplitude of the AC voltage is less than 50% of the amplitude of a voltage amplitude of the grid, and the second half-bridge provides a difference voltage between the grid voltage and the voltage provided by the first half-bridge at the first AC output.
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公开(公告)号：US09866023B2
公开(公告)日：2018-01-09
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
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.
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Patent Agency Ranking
公开(公告)号：US09755513B2
公开(公告)日：2017-09-05
申请号：US14610536
申请日：2015-01-30
Applicant: SMA Solar Technology AG
Inventor： Jens Friebe , Klaus Rigbers , Sebastian Lederer
CPC classification number: H02M3/158 , H02M3/1582 , H02M2001/0064 , Y02B70/1425
Abstract: The disclosure relates to a DC/DC converter including at least one clocked switching member and at least one inductor which is arranged between an input connection and an output connection of the DC/DC converter and is for intermediate storage of energy transferred by the DC/DC converter, wherein the inductor has a core with permanent magnetization. The DC/DC converter is configured for bidirectional operation, wherein, in a first energy transfer direction, the at least one switching member is switched in a first operating mode and, in a second energy transfer direction which is opposite to the first, the at least one switching member is switched in a second operating mode which deviates from the first. The disclosure also relates to an operating method for a DC/DC converter.
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公开(公告)号：US20220304184A1
公开(公告)日：2022-09-22
申请号：US17831867
申请日：2022-06-03
Applicant: SMA Solar Technology AG
Inventor： Klaus Rigbers , Thomas Wappler , Gerrit Braun , Andreas Knobloch , Matthias Rehbein
Abstract: An inverter with a rated power of at least 3 kVA includes a first assembly which includes a first printed circuit board and a DC/AC converter stage, and a second assembly which includes a second printed circuit board and an EMC filter for the DC/AC converter stage. The first printed circuit board is mounted on a heat sink and lies substantially flat on the heat sink, and the DC/AC converter stage has converter components which comprise power semiconductors, chokes and link circuit capacitors. The chokes and the link circuit capacitors are arranged together on one side of the first printed circuit board, and the heat sink is arranged on the opposite side of the first printed circuit board, and the chokes and/or the power semiconductors are thermally connected to the heat sink via the first printed circuit board and a thermally conductive material arranged between the first printed circuit board and the heat sink. The second printed circuit board is arranged on the side of the first printed circuit board opposite the heat sink, and a metal sheet is arranged between the first assembly and the second assembly, and the second printed circuit board is mounted on the metal sheet.
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公开(公告)号：US09368267B2
公开(公告)日：2016-06-14
申请号：US13975754
申请日：2013-08-26
Applicant: SMA Solar Technology AG
Inventor： Michael Viotto , Klaus Rigbers , Jens Friebe , Peter Zacharias
CPC classification number: H01F21/08 , H01F13/003 , H01F29/14 , H01F2003/103
Abstract: An inductor apparatus includes an inductor winding, a core defining a magnetic circuit for a magnetic flux generated by a current flowing through the inductor winding, at least one permanent magnet magnetically biasing the core by its permanent magnetization, and a magnetization device operable for adjusting a desired magnetization of the permanent magnet. The at least one permanent magnet is arranged within the magnetic circuit of the magnetic flux generated by the current flowing through the inductor winding. The magnetization device includes a magnetization winding and a circuitry configured to subject the magnetization winding to magnetization current pulses, thereby generating at a location of the permanent magnet a magnetic field which is able to change the permanent magnetization of the permanent magnet.
Abstract translation: 电感器设备包括电感器绕组，限定用于由流过电感器绕组的电流产生的磁通量的磁路的磁芯，至少一个通过其永久磁化磁化地偏压磁芯的永磁体，以及用于调节 永磁体需要磁化。 至少一个永久磁铁布置在由流过电感器绕组的电流产生的磁通的磁路内。 磁化装置包括磁化绕组和被配置为使磁化绕组受到磁化电流脉冲的电路，从而在永磁体的位置产生能够改变永磁体的永久磁化的磁场。
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8.发明申请公开(公告)号：US20150171751A1
公开(公告)日：2015-06-18
申请号：US14610536
申请日：2015-01-30
Applicant: SMA Solar Technology AG
Inventor： Jens Friebe , Klaus Rigbers , Sebastian Lederer
IPC: H02M3/158
CPC classification number: H02M3/158 , H02M3/1582 , H02M2001/0064 , Y02B70/1425
Abstract: The disclosure relates to a DC/DC converter including at least one clocked switching member and at least one inductor which is arranged between an input connection and an output connection of the DC/DC converter and is for intermediate storage of energy transferred by the DC/DC converter, wherein the inductor has a core with permanent magnetization. The DC/DC converter is configured for bidirectional operation, wherein, in a first energy transfer direction, the at least one switching member is switched in a first operating mode and, in a second energy transfer direction which is opposite to the first, the at least one switching member is switched in a second operating mode which deviates from the first. The disclosure also relates to an operating method for a DC/DC converter.
Abstract translation: 本公开涉及一种DC / DC转换器，其包括至少一个时钟控制开关元件和至少一个电感器，该至少一个电感器被布置在DC / DC转换器的输入连接和输出连接之间，并用于中间存储由DC / DC转换器，其中电感器具有具有永久磁化的磁芯。 DC / DC转换器被配置为用于双向操作，其中在第一能量传递方向上，所述至少一个切换构件以第一操作模式切换，并且在与第一操作模式相反的第二能量传递方向上 至少一个切换构件在与第一操作模式偏离的第二操作模式中切换。 本公开还涉及用于DC / DC转换器的操作方法。
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公开(公告)号：US20130335178A1
公开(公告)日：2013-12-19
申请号：US13975754
申请日：2013-08-26
Applicant: SMA Solar Technology AG
Inventor： Michael Viotto , Klaus Rigbers , Jens Friebe , Peter Zacharias
IPC: H01F21/08
CPC classification number: H01F21/08 , H01F13/003 , H01F29/14 , H01F2003/103
Abstract: An inductor apparatus includes an inductor winding, a core defining a magnetic circuit for a magnetic flux generated by a current flowing through the inductor winding, at least one permanent magnet magnetically biasing the core by its permanent magnetization, and a magnetization device operable for adjusting a desired magnetization of the permanent magnet. The at least one permanent magnet is arranged within the magnetic circuit of the magnetic flux generated by the current flowing through the inductor winding. The magnetization device includes a magnetization winding and a circuitry configured to subject the magnetization winding to magnetization current pulses, thereby generating at a location of the permanent magnet a magnetic field which is able to change the permanent magnetization of the permanent magnet.
Abstract translation: 电感器设备包括电感器绕组，限定用于由流过电感器绕组的电流产生的磁通量的磁路的磁芯，至少一个通过其永久磁化磁化地偏压磁芯的永磁体，以及用于调节 永磁体需要磁化。 至少一个永久磁铁布置在由流过电感器绕组的电流产生的磁通的磁路内。 磁化装置包括磁化绕组和被配置为使磁化绕组受到磁化电流脉冲的电路，从而在永磁体的位置产生能够改变永磁体的永久磁化的磁场。
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