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1. 发明授权

US09297847B2 Method for checking a separation point between a photovoltaic inverter and power supply network and photovoltaic inverter 有权
标题翻译：用于检查光伏逆变器和电源网络与光伏逆变器之间的分离点的方法
公开(公告)号：US09297847B2
公开(公告)日：2016-03-29
申请号：US14178456
申请日：2014-02-12
申请人： Fronius International GmbH
发明人： Friedrich Oberzaucher , Joachim Danmayr
IPC分类号： G01R31/04 , H02M7/58 , G01R31/327
CPC分类号： G01R31/04 , G01R31/3278 , H02M7/58
摘要： The invention relates to a method for checking a separation point (14) between a photovoltaic inverter (1) and a power supply network (7) having multiple phases (L1, L2, L3) and a neutral conductor (N), wherein multiple switching contacts of the separation point (14) are controlled by the photovoltaic inverter (1), and to a photovoltaic inverter (1). To allow a simple and quick check of the functionality of the separation point (14), the switching contacts of the separation point (14) are each formed by single-pole relays (15-22) and switched in steps according to a switching pattern. For checking switching contacts, a voltage (26, 27, 28) is measured at at least one phase (L1, L2, L3) with respect to the neutral conductor (N), upstream of the separation point (14), and compared to voltage values assigned in accordance with the switching pattern, thereby to deduce the functionality of the switching contacts.
摘要翻译：本发明涉及一种用于检查光伏逆变器（1）和具有多相（L1，L2，L3）和中性导体（N）的电源网络（7）之间的分离点（14）的方法，其中多个开关分离点（14）的接触由光伏逆变器（1）和光伏逆变器（1）控制。为了简单快速地检查分离点（14）的功能，分离点（14）的开关触点各自由单极继电器（15-22）形成，并根据开关模式逐步切换。为了检查开关触点，在至少一相（L1，L2，L3）相对于中性导体（N）在分离点（14）的上游测量电压（26,27,28），并与根据切换模式分配的电压值，从而推断开关触点的功能。

2. 发明授权

US09800174B2 Power supply for an inverter and method for operating power supply for an inverter 有权
公开(公告)号：US09800174B2
公开(公告)日：2017-10-24
申请号：US14403867
申请日：2013-05-24
申请人： FRONIUS INTERNATIONAL GmbH
发明人： Joachim Danmayr , Stefan Bloechl , Andreas Luger , Dietmar Striegl , Martin Moertenhuber
IPC分类号： H02P27/00 , H02M7/46 , H02M7/48 , H02J9/06 , H02J3/38 , H02M1/00
CPC分类号： H02M7/46 , H02J3/38 , H02J9/062 , H02M7/48 , H02M2001/0006
摘要： Power supply for an inverter and method for operating power supply. Power supply includes a throttle arranged to connect an output end of the inverter to an electric power supply network; a secondary-side auxiliary winding that is arranged on the throttle to transmit an output voltage (UA) of the inverter to a secondary side of the throttle; and a comparator unit. The comparator unit compares a voltage (U1) of the electric supply network with the voltage (U2) of the secondary side of the throttle, to supply, depending upon a result of the comparison of the electric supply network voltage (U1) to the secondary side voltage (U2) of the throttle, electric power to the power supply either from the electric supply network or via the secondary-side auxiliary winding.

3. 发明申请

US20150146463A1 POWER SUPPLY FOR AN INVERTER 有权
标题翻译：电源用于逆变器
公开(公告)号：US20150146463A1
公开(公告)日：2015-05-28
申请号：US14403867
申请日：2013-05-24
申请人： FRONIUS INTERNATIONAL GMBH
发明人： Joachim Danmayr , Stefan Bloechl , Andreas Luger , Dietmar Striegl , Martin Moertenhuber
IPC分类号： H02M7/46 , H02J3/38
CPC分类号： H02M7/46 , H02J3/38 , H02J9/062 , H02M7/48 , H02M2001/0006
摘要： To be able to maintain the power supply of an inverter which is supplied with power from a supply network even in the event of a power failure, it is proposed according to the invention that in the event of a power failure, the electric power for the power supply (2) of the inverter (1) is obtained from a throttle (7) of the inverter (1) at the output end via an auxiliary winding (13).
摘要翻译：为了能够维持即使在发生电源故障的情况下也从供电网络供电的逆变器的电源，根据本发明提出，在电源故障的情况下，为了逆变器（1）的电源（2）通过辅助绕组（13）从输出端的逆变器（1）的节气门（7）获得。

4. 发明授权

US09494659B2 Method for checking a separation point of a photovoltaic inverter, and photovoltaic inverter 有权
标题翻译：用于检查光伏逆变器和光伏逆变器的分离点的方法
公开(公告)号：US09494659B2
公开(公告)日：2016-11-15
申请号：US14395184
申请日：2013-06-11
申请人： Fronius International GmbH
发明人： Joachim Danmayr , Stefan Bloechl
IPC分类号： G01R31/40 , H01H47/00 , H02S50/10 , G01R31/327 , G01R31/42
CPC分类号： G01R31/40 , G01R31/327 , G01R31/42 , H01H47/002 , H02S50/00 , H02S50/10
摘要： The invention relates to a method for checking a photovoltaic inverter separator (14) between the photovoltaic inverter (1) and a power supply network (7), comprising multiple phases (L1, L2, L3) and a neutral conductor (N), wherein multiple switching contacts of the separator (14) are controlled by the photovoltaic inverter (1), and the invention also relates to a photovoltaic inverter (1). The aim of the invention is to allow a simple and quick check of the functionality of the separator (14). This is achieved in that the switching contacts of the separator (14) are connected and checked in steps according to a switching pattern. In each step, each voltage (30, 31, 32 and 33, 34, 35) is measured at at least one phase (L1, L2, L3) upstream and downstream of the separator (14) in relation to the neutral conductor (N), and the voltages are compared to one another.
摘要翻译：本发明涉及一种用于检查光伏逆变器（1）和电源网络（7）之间的光伏逆变器分离器（14）的方法，该方法包括多相（L1，L2，L3）和中性导体（N），其中分离器（14）的多个开关触点由光伏逆变器（1）控制，本发明还涉及光伏逆变器（1）。本发明的目的是允许简单快速地检查分离器（14）的功能。这是通过分离器（14）的开关触点根据切换模式进行连接和检查来实现的。在每个步骤中，每个电压（30,31,32,33,34,35）在分离器（14）的上游和下游相对于中性导体（N）的至少一个相（L1，L2，L3）），并将电压彼此进行比较。

5. 发明申请

US20150091604A1 METHOD FOR CHECKING A SEPARATION POINT OF A PHOTOVOLTAIC INVERTER, AND PHOTOVOLTAIC INVERTER 有权
标题翻译：检查光伏逆变器和光伏逆变器的分离点的方法
公开(公告)号：US20150091604A1
公开(公告)日：2015-04-02
申请号：US14395184
申请日：2013-06-11
申请人： Fronius International GmbH
发明人： Joachim Danmayr , Stefan Bloechl
IPC分类号： G01R31/40
CPC分类号： G01R31/40 , G01R31/327 , G01R31/42 , H01H47/002 , H02S50/00 , H02S50/10
摘要： The invention relates to a method for checking a photovoltaic inverter separator (14) between the photovoltaic inverter (1) and a power supply network (7), comprising multiple phases (L1, L2, L3) and a neutral conductor (N), wherein multiple switching contacts of the separator (14) are controlled by the photovoltaic inverter (1), and the invention also relates to a photovoltaic inverter (1). The aim of the invention is to allow a simple and quick check of the functionality of the separator (14). This is achieved in that the switching contacts of the separator (14) are connected and checked in steps according to a switching pattern. In each step, each voltage (30, 31, 32 and 33, 34, 35) is measured at at least one phase (L1, L2, L3) upstream and downstream of the separator (14) in relation to the neutral conductor (N), and the voltages are compared to one another.
摘要翻译：本发明涉及一种用于检查光伏逆变器（1）和电源网络（7）之间的光伏逆变器分离器（14）的方法，该方法包括多相（L1，L2，L3）和中性导体（N），其中分离器（14）的多个开关触点由光伏逆变器（1）控制，本发明还涉及光伏逆变器（1）。本发明的目的是允许简单快速地检查分离器（14）的功能。这是通过分离器（14）的开关触点根据切换模式进行连接和检查来实现的。在每个步骤中，每个电压（30,31,32,33,34,35）在分离器（14）的上游和下游相对于中性导体（N）的至少一个相（L1，L2，L3）），并将电压彼此进行比较。

6. 发明授权

US11626792B2 Inverter with monitoring unit for intermediate circuit protection 有权
公开(公告)号：US11626792B2
公开(公告)日：2023-04-11
申请号：US17258526
申请日：2019-07-30
申请人： Fronius International GmbH
发明人： Friedrich Oberzaucher , Gerhard Wallisch , Joachim Danmayr , Andreas Luger
IPC分类号： H02M1/32 , H02M3/155 , H02M7/44 , H02M7/48 , H02M7/483 , H02M3/156
摘要： An inverter includes a DC/DC converter which converts a direct current received from a DC voltage source into an intermediate circuit voltage of an intermediate circuit, a DC/AC converter which converts the intermediate circuit voltage into an AC voltage, and a monitoring unit which monitors capacitors of the intermediate circuit for protection against overvoltages. If an overvoltage occurs at one of the capacitors of the intermediate circuit the overvoltage unit decouples the DC voltage source from the intermediate circuit by actuating the DC/DC converter.

7. 发明授权

US11125833B1 Method for testing a disconnection point of a photovoltaic inverter, and a photovoltaic inverter of this type 有权
公开(公告)号：US11125833B1
公开(公告)日：2021-09-21
申请号：US17274245
申请日：2019-10-03
申请人： Fronius International GmbH
发明人： Gerhard Wallisch , Joachim Danmayr
IPC分类号： G01R31/02 , G01R31/327 , G01R31/42 , H02S50/00 , H02S40/32 , G01R31/00 , H01H47/00 , H01H11/00
摘要： The invention relates to a method for testing a disconnection point (12) of a photovoltaic inverter (1) and to a photovoltaic inverter (1) of this type. According to the invention, in a testing mode, an auxiliary voltage (U_Lx) is applied between the input (E_Lx) of each line (Lx) of the disconnection point (12) and an intermediate circuit potential (M), in each case, the first switching contacts (SW_Lx,1) are closed and the second switching contacts (SW_Lx,2) are opened alternately and vice versa, according to a switching pattern, and, for each switching pattern, the voltages (U_Lx,GD; U_MN) between the output (A_Lx) of each line (Lx) of the disconnection point (12) and the intermediate circuit potential (M) are measured, and the functionality of each switching contact (SW_Lx,j) is derived from the measured voltages (U_Lx,GD; U_MN).

8. 发明申请

US20210143729A1 Inverter Comprising Intermediate Circuit Protection 有权
公开(公告)号：US20210143729A1
公开(公告)日：2021-05-13
申请号：US17258526
申请日：2019-07-30
申请人： Fronius International GmbH
发明人： Friedrich Oberzaucher , Gerhard Wallisch , Joachim Danmayr , Andreas Luger
IPC分类号： H02M1/32 , H02M3/155 , H02M7/44
摘要： Inverter (1) comprising a DC/DC converter (4) which converts a direct current received from a DC voltage source (3) into an intermediate circuit voltage of an intermediate circuit (5), a DC/AC converter (6) which converts the intermediate circuit voltage into an AC voltage, and comprising a monitoring unit (8) which monitors capacitors of the intermediate circuit (5) for protection against overvoltages, the over-voltage unit (8), if an overvoltage occurs at at least one of the capacitors of the intermediate circuit (5), decoupling the DC voltage source (3) from the intermediate circuit (5) by actuating the DC/DC converter (4).

9. 发明授权

US09929673B2 Method for feeding energy from photovoltaic modules of a photovoltaic system and inverter designed for executing this method 有权
公开(公告)号：US09929673B2
公开(公告)日：2018-03-27
申请号：US14685723
申请日：2015-04-14
申请人： FRONIUS INTERNATIONAL GMBH
发明人： Joachim Danmayr , Johannes Starzinger , Julian Landauer
IPC分类号： H02J1/10 , H02M7/44 , H02M1/36 , H02M3/00 , H02M1/00
CPC分类号： H02M7/44 , H02M1/36 , H02M3/00 , H02M2001/007 , Y02E10/56
摘要： A method for feeding energy from photovoltaic modules (2) of a photovoltaic system (1) into a supply grid (5), or to a load, converts the DC voltage (UDC) generated by the photovoltaic modules (2) in an inverter (3) with an intermediate circuit (7) with a capacitor (CZW) and with a DC/AC-converter (8) into an AC voltage (UAC), and in a feed-in mode of operation the inverter (3) is connected via a switching device (4) to the supply grid (5), or to the load, together with an inverter (3) for executing the method. For conservation of the switching device (4) the input power (Pe) of the photovoltaic modules (2) is determined in a test procedure, and the switching device (4) of the inverter (3) is activated if the input power (Pe) of the photovoltaic modules (2) as determined is greater than or equal to a specified minimum input power (Pe,min).

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