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公开(公告)号：US20200301493A1
公开(公告)日：2020-09-24
申请号：US16893250
申请日：2020-06-04
Applicant: SMA Solar Technology AG
Inventor： Stefan Buchhold , Jens Friebe , Michael Kotthaus , Ephraim Moeser , Torsten Soederberg , Thomas Wappler
Abstract: The application relates to a photovoltaic system having a photovoltaic generator, an inverter and a communication interface configured for connecting an external electrical unit. The communication interface is configured for bidirectional power interchange with the external electrical unit. The inverter can include the communication interface. Furthermore, the description relates to a method for operating such a photovoltaic system.
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公开(公告)号：US11146072B2
公开(公告)日：2021-10-12
申请号：US16661037
申请日：2019-10-23
Applicant: SMA Solar Technology AG
Inventor： Stefan Buchhold , Jens Friebe , Michael Kotthaus , Torsten Soederberg , Thomas Wappler , Ephraim Moeser
Abstract: The disclosure relates to an inverter with at least one inverter bridge and at least two galvanically isolating DC/DC converters, outputs of the DC/DC converters being connected in parallel with one another and being connected to inputs of the inverter bridge. At least two of the DC/DC converters are intercoupled on the input side via a diode, such that the diode is connected with its terminals to one of the inputs of the two direct voltage converters in each case. The disclosure also relates to a use for such an inverter.
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公开(公告)号：US11025055B2
公开(公告)日：2021-06-01
申请号：US16661318
申请日：2019-10-23
Applicant: SMA Solar Technology AG
Inventor： Stefan Buchhold , Jens Friebe , Michael Kotthaus , Torsten Soederberg , Thomas Wappler , Ephraim Moeser
Abstract: The disclosure relates to an inverter with at least one inverter bridge and at least two DC converters, the outputs of the DC converters being connected to inputs of the inverter. The inverter includes an exchangeable adapter having input terminals for connection to power sources or loads and output terminals connected via input terminals to inputs of the DC-DC converters. Within the adapter each of the output terminals is connected to one of the input terminals and/or another of the output terminals.
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公开(公告)号：US12262515B2
公开(公告)日：2025-03-25
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：US11522494B2
公开(公告)日：2022-12-06
申请号：US16901179
申请日：2020-06-15
Applicant: SMA Solar Technology AG
Inventor： Stefan Buchhold , Jens Friebe , Michael Kotthaus , Ephraim Moeser , Torsten Soederberg , Thomas Wappler
Abstract: An inverter for a photovoltaic system includes a substantially planar baseplate having a front and a rear, wherein the rear forms an outer rear wall of the inverter, and having at least one platform-like elevation that rises in the direction of the front of the baseplate. The inverter also includes a printed circuit board having one or more heat-generating components mounted thereon, wherein the printed circuit board is installed on the baseplate such that the one or more heat-generating components are arranged on the printed circuit board in the region of the platform-like elevation and are in thermal contact with the platform-like elevation. The inverter further includes a potting compound that fills a space on the front of the baseplate and surrounds at least partially the printed circuit board, and a cover arranged on or in the potting compound that adjoins the baseplate, so that the baseplate and the cover surrounding at least part of the potting compound form a housing. The inverter also includes at least four DC connectors that are arranged in pairs on at least one of the lateral end faces of the housing and at least part of which is cast in the potting compound, and an AC connector that is arranged on one of the lateral end faces of the housing, wherein electrical contacts of the AC connector are connected to the printed circuit board.
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Patent Agency Ranking
6.发明授权公开(公告)号：US11289994B2
公开(公告)日：2022-03-29
申请号：US16862954
申请日：2020-04-30
Applicant: SMA Solar Technology AG
Inventor： Jens Friebe , Oliver Prior , Thomas Wappler
Abstract: A circuit arrangement includes a power semiconductor switch, a freewheeling diode, and a storage choke having a core and a winding coupled between a first choke terminal and a second choke terminal. The storage choke is configured to conduct a current flowing across the power semiconductor switch. The arrangement also includes a driver circuit configured to drive the power semiconductor switch via the control terminal thereof.
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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：US20200313607A1
公开(公告)日：2020-10-01
申请号：US16901179
申请日：2020-06-15
Applicant: SMA Solar Technology AG
Inventor： Stefan Buchhold , Jens Friebe , Michael Kotthaus , Ephraim Moeser , Torsten Soederberg , Thomas Wappler
Abstract: An inverter for a photovoltaic system includes a substantially planar baseplate having a front and a rear, wherein the rear forms an outer rear wall of the inverter, and having at least one platform-like elevation that rises in the direction of the front of the baseplate. The inverter also includes a printed circuit board having one or more heat-generating components mounted thereon, wherein the printed circuit board is installed on the baseplate such that the one or more heat-generating components are arranged on the printed circuit board in the region of the platform-like elevation and are in thermal contact with the platform-like elevation. The inverter further includes a potting compound that fills a space on the front of the baseplate and surrounds at least partially the printed circuit board, and a cover arranged on or in the potting compound that adjoins the baseplate, so that the baseplate and the cover surrounding at least part of the potting compound form a housing, The inverter also includes at least four DC connectors that are arranged in pairs on at least one of the lateral end faces of the housing and at least part of which is cast in the potting compound, and an AC connector that is arranged on one of the lateral end faces of the housing, wherein electrical contacts of the AC connector are connected to the printed circuit board.
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公开(公告)号：US20200259419A1
公开(公告)日：2020-08-13
申请号：US16862954
申请日：2020-04-30
Applicant: SMA Solar Technology AG
Inventor： Jens Friebe , Oliver Prior , Thomas Wappler
Abstract: A circuit arrangement includes a power semiconductor switch, a freewheeling diode, and a storage choke having a core and a winding coupled between a first choke terminal and a second choke terminal. The storage choke is configured to conduct a current flowing across the power semiconductor switch. The arrangement also includes a driver circuit configured to drive the power semiconductor switch via the control terminal thereof.
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公开(公告)号：US10447175B2
公开(公告)日：2019-10-15
申请号：US15467397
申请日：2017-03-23
Applicant: SMA Solar Technology AG
Inventor： Jens Friebe , Oliver Prior , Thomas Wappler
IPC: H02M7/537 , H02M3/04 , H02M1/04 , H02J3/38 , H02M1/12 , H02M1/15 , H02M3/158 , H02M7/487 , H02M7/538 , H02M7/5387 , H02M1/14 , H02M1/00
Abstract: The disclosure relates to an inverter for supplying a power provided as a DC voltage at a DC input to an AC mains connectable to an AC output. In this case, the inverter includes a switching network with a plurality of semiconductor switches and a digital control unit for producing a digital switching pattern for digitally operated semiconductor switches of the switching network that are able to be used to produce a first output voltage (Uout,dig). The inverter additionally includes a linear control unit for producing signals for actuating at least one semiconductor switch of the switching network in a linear mode, wherein the linear control unit is set up to produce a voltage drop (Uout,lin) across and/or a current (Iout,lin) through the at least one linearly operated semiconductor switch to a target value that is dependent on an instantaneous difference between the first output voltage (Uout,dig) and a voltage (UAC) of the AC mains. The disclosure additionally relates to a control method for such an inverter and a photovoltaic (PV) installation having such an inverter.
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