-
1.发明申请CIRCUITRY ARRANGEMENT FOR A SOLAR POWER PLANT COMPRISING A DC VOLTAGE SOURCE FOR AN OFFSET VOLTAGE 有权一个包含用于偏置电压的直流电压源的太阳能发电厂的电路布置公开(公告)号：US20130088086A1
公开(公告)日：2013-04-11
申请号：US13645620
申请日：2012-10-05
Applicant: SMA Solar Technology AG
Inventor： Stephanie Coors , Michael Viotto
IPC: H02J4/00
CPC classification number: H02J1/10 , H02J1/00 , H02J3/383 , H02J5/00 , Y02E10/563 , Y10T307/658
Abstract: A circuitry arrangement for a solar power plant includes a transformerless inverter for feeding electric power from at least one photovoltaic generator into an alternating power grid, a galvanic separation of all lines carrying current between the inverter and the power grid, and a DC voltage source in an offset path between one electric line at the input side of the galvanic separation and a reference potential. The DC voltage source provides an offset voltage. The offset path includes a DC branch and an AC branch connected in parallel. The direct voltage source is connected in series with a current sensor in the DC branch, and at least one capacitor is arranged in the AC branch. Further, a DC contactor triggered by the current sensor is arranged in the offset path.
Abstract translation: 一种用于太阳能发电厂的电路装置包括一个无变压器逆变器，用于将来自至少一个光伏发电机的电力馈送到交流电网中，在逆变器和电力网之间电流分离所有负载电流的线路，以及直流电压源 在电隔离的输入侧的一条电线与参考电位之间的偏移路径。 直流电压源提供偏移电压。 偏移路径包括并行连接的DC分支和AC分支。 直流电源与DC分支中的电流传感器串联连接，并且至少一个电容器布置在AC分支中。 此外，由电流传感器触发的DC接触器布置在偏移路径中。
-
公开(公告)号：US20220109401A1
公开(公告)日：2022-04-07
申请号：US17553865
申请日：2021-12-17
Applicant: SMA Solar Technology AG
Inventor： Michael Viotto , Markus Hopf , Bernhard Schropp
Abstract: The disclosure relates to a method for determining a characteristic curve for a photovoltaic (PV) string of a photovoltaic system having an inverter which is connected to the photovoltaic string and to a power supply network. The photovoltaic string includes a series connection of a plurality of photovoltaic modules, in which series connection at least one of the photovoltaic modules is integrated into the series connection of the photovoltaic modules via a DC/DC converter. The at least one DC/DC converter operates the photovoltaic module assigned thereto in a first operating mode M1 at a maximum power point by varying, over time, a conversion ratio of output voltage (UOut) to input voltage (UIn), and operates the photovoltaic module in a second operating mode M2 with a conversion ratio of output voltage (UOut) to input voltage (UIn) that is constant over time. The method includes operating the at least one DC/DC converter in the second operating mode M2 in response to a current signature for the current (IStr) through the photovoltaic string, determining the characteristic curve by varying the current IStr or the voltage UStr of the photovoltaic string by the inverter, and detecting values assigned to one another for current IStr and voltage UStr of the photovoltaic string in the second operating mode M2 of the DC/DC converter.
-
公开(公告)号：US20220373613A1
公开(公告)日：2022-11-24
申请号：US17838630
申请日：2022-06-13
Applicant: SMA Solar Technology AG
Inventor： Michael Viotto , Martin Putz , Christian Tschendel
Abstract: A fail-safe operating method for a decentralized power generation plant DG includes determining a leakage capacitance of a generator of the DG before connecting the DG. The method also includes comparing the determined leakage capacitance with a predetermined first limit value, and connecting the DG to a grid only if the determined leakage capacitance is smaller than the predetermined first limit value. A decentralized power generation plant is configured to perform the method.
-
公开(公告)号：US09435845B2
公开(公告)日：2016-09-06
申请号：US14230423
申请日：2014-03-31
Applicant: SMA Solar Technology AG
Inventor： Johannes Lang , Thomas Wegener , Marcel Kratochvil , Holger Behrends , Michael Viotto
CPC classification number: G01R31/025 , G01R31/333 , H01H9/50 , H01H33/26 , H01H83/20 , H02H1/0015 , H02H7/205
Abstract: The disclosure relates to a method for detecting an arc in a DC circuit. The method includes measuring and analyzing an AC component (IAC) of a current (I) flowing in the circuit and determining at least one parameter of the AC component (IAC). The level of a DC component (IDC) of the current (I) is varied and a degree of correlation between the level of the DC component (IDC) of the current (I) flowing in the DC circuit and the at least one parameter of the AC component (IAC) is determined. An arc is detected and selectively signaled based on the degree of the determined correlation. The disclosure also relates to an apparatus for carrying out the method and to an inverter comprising such an apparatus.
Abstract translation: 本公开涉及一种用于检测直流电路中的电弧的方法。 该方法包括测量和分析在电路中流动的电流（I）的AC分量（IAC）并确定AC分量（IAC）的至少一个参数。 电流（I）的DC分量（IDC）的电平变化，并且在直流电路中流动的电流（I）的直流分量（IDC）的电平与至少一个参数 AC分量（IAC）被确定。 基于所确定的相关度的程度来检测并选择性地发出电弧。 本公开还涉及一种用于执行该方法的装置以及包括这种装置的逆变器。
-
公开(公告)号：US20140210485A1
公开(公告)日：2014-07-31
申请号：US14230423
申请日：2014-03-31
Applicant: SMA Solar Technology AG
Inventor： Johannes Lang , Thomas Wegener , Marcel Kratochvil , Holger Behrends , Michael Viotto
IPC: G01R31/02
CPC classification number: G01R31/025 , G01R31/333 , H01H9/50 , H01H33/26 , H01H83/20 , H02H1/0015 , H02H7/205
Abstract: The disclosure relates to a method for detecting an arc in a DC circuit. The method includes measuring and analyzing an AC component (IAC) of a current (I) flowing in the circuit and determining at least one parameter of the AC component (IAC). The level of a DC component (IDC) of the current (I) is varied and a degree of correlation between the level of the DC component (IDC) of the current (I) flowing in the DC circuit and the at least one parameter of the AC component (IAC) is determined. An arc is detected and selectively signaled based on the degree of the determined correlation. The disclosure also relates to an apparatus for carrying out the method and to an inverter comprising such an apparatus.
Abstract translation: 本公开涉及一种用于检测直流电路中的电弧的方法。 该方法包括测量和分析在电路中流动的电流（I）的AC分量（IAC）并确定AC分量（IAC）的至少一个参数。 电流（I）的DC分量（IDC）的电平变化，并且在直流电路中流动的电流（I）的直流分量（IDC）的电平与至少一个参数 AC分量（IAC）被确定。 基于所确定的相关度的程度来检测并选择性地发出电弧。 本公开还涉及一种用于执行该方法的装置以及包括这种装置的逆变器。
-
Patent Agency Ranking
公开(公告)号：US12216178B2
公开(公告)日：2025-02-04
申请号：US17838630
申请日：2022-06-13
Applicant: SMA Solar Technology AG
Inventor： Michael Viotto , Martin Putz , Christian Tschendel
Abstract: A fail-safe operating method for a decentralized power generation plant DG includes determining a leakage capacitance of a generator of the DG before connecting the DG. The method also includes comparing the determined leakage capacitance with a predetermined first limit value, and connecting the DG to a grid only if the determined leakage capacitance is smaller than the predetermined first limit value. A decentralized power generation plant is configured to perform the method.
-
公开(公告)号：US20230187967A1
公开(公告)日：2023-06-15
申请号：US18108840
申请日：2023-02-13
Applicant: SMA Solar Technology AG
Inventor： Raimund Thiel , Michael Viotto
Abstract: The disclosure relates to a method for setting a power class of an inverter, wherein the inverter has a device type plate containing information about the inverter which is device-specific and independent of the selected power class, and wherein the inverter has a class plate which is selected from a plurality of power class-specific class plates each assigned to one power class from a plurality of power classes and contains information about the assigned power class. The method includes capturing an image of the device type plate and the class plate and reading out the device-specific information and the information about the assigned power class from the data captured as an image,—transferring a setting sequence to the inverter, wherein the setting sequence has the information about the assigned power class,—setting the power class of the inverter using the setting sequence following authentication of the read-out information. The disclosure also relates to an inverter having a power class that can be set.
-
公开(公告)号：US11360157B2
公开(公告)日：2022-06-14
申请号：US16893276
申请日：2020-06-04
Applicant: SMA Solar Technology AG
Inventor： Michael Viotto , Martin Putz , Christian Tschendel
Abstract: A fail-safe operating method for a decentralized power generation plant DG includes determining a leakage capacitance of a generator of the DG before connecting the DG. The method also includes comparing the determined leakage capacitance with a predetermined first limit value, and connecting the DG to a grid only if the determined leakage capacitance is smaller than the predetermined first limit value. A decentralized power generation plant is configured to perform the method.
-
公开(公告)号：US20200300924A1
公开(公告)日：2020-09-24
申请号：US16893276
申请日：2020-06-04
Applicant: SMA Solar Technology AG
Inventor： Michael Viotto , Martin Putz , Christian Tschendel
Abstract: A fail-safe operating method for a decentralized power generation plant DG includes determining a leakage capacitance of a generator of the DG before connecting the DG. The method also includes comparing the determined leakage capacitance with a predetermined first limit value, and connecting the DG to a grid only if the determined leakage capacitance is smaller than the predetermined first limit value. A decentralized power generation plant is configured to perform the method.
-
公开(公告)号：US11888439B2
公开(公告)日：2024-01-30
申请号：US17553865
申请日：2021-12-17
Applicant: SMA Solar Technology AG
Inventor： Michael Viotto , Markus Hopf , Bernhard Schropp
Abstract: The disclosure relates to a method for determining a characteristic curve for a photovoltaic (PV) string of a photovoltaic system having an inverter which is connected to the photovoltaic string and to a power supply network. The photovoltaic string includes a series connection of a plurality of photovoltaic modules, in which series connection at least one of the photovoltaic modules is integrated into the series connection of the photovoltaic modules via a DC/DC converter. The at least one DC/DC converter operates the photovoltaic module assigned thereto in a first operating mode M1 at a maximum power point by varying, over time, a conversion ratio of output voltage (UOut) to input voltage (UIn), and operates the photovoltaic module in a second operating mode M2 with a conversion ratio of output voltage (UOut) to input voltage (UIn) that is constant over time. The method includes operating the at least one DC/DC converter in the second operating mode M2 in response to a current signature for the current (IStr) through the photovoltaic string, determining the characteristic curve by varying the current IStr or the voltage UStr of the photovoltaic string by the inverter, and detecting values assigned to one another for current IStr and voltage UStr of the photovoltaic string in the second operating mode M2 of the DC/DC converter.
-
-
-
-
-
-
-
-
-
Search Results
13
records
(took 0.012 seconds)
