公开(公告)号：US09190920B2

公开(公告)日：2015-11-17

申请号：US13571628

申请日：2012-08-10

Applicant: Huaguang Zhang ,  Dongsheng Yang ,  Guangru Zhang ,  Gang Wang ,  Le Li ,  Xinrui Liu ,  Yingchun Wang ,  Rijiang Wang ,  Yang Jiao

Inventor： Huaguang Zhang ,  Dongsheng Yang ,  Guangru Zhang ,  Gang Wang ,  Le Li ,  Xinrui Liu ,  Yingchun Wang ,  Rijiang Wang ,  Yang Jiao

IPC: H02M3/335 ,  H02M7/48 ,  H02M1/00

CPC classification number: H02M3/33569 ,  H02M7/4807 ,  H02M2001/007 ,  Y02E10/56

Abstract: An H-bridge micro inverter grid-connected device is invented to solve the problem that failure of any photovoltaic panel on the existing solar photovoltaic system cascade can cause efficiency reduction of the whole photovoltaic panel module. The H-bridge micro inverter grid-connected device comprises a single-chip microcomputer controller, a CPLD controller, a MOSFET full-bridge circuit, a high-frequency transformer, a half-bridge rectifying circuit, an SCR full-bridge circuit and a filter circuit, wherein the MOSFET full-bridge circuit is in the full-bridge type, the high-frequency transformer is a single-phase transformer with a central tap, and the SCR full-bridge circuit is applied. The integral structure above is characterized by the decreasing number of components, the reduction of power switches, and the simplification of the control circuits and driving circuits, so as to decrease the number of full-control switch components, improve the system reliability and reduce the system costs.

Abstract translation: 发明了一种H桥微逆变并网装置，以解决现有太阳能光伏发电系统级联的任何光伏面板的故障可能导致整个光伏面板组件的效率降低的问题。 H桥微逆变并网装置包括单片机控制器，CPLD控制器，MOSFET全桥电路，高频变压器，半桥整流电路，SCR全桥电路和 滤波电路，其中MOSFET全桥电路为全桥型，高频变压器为具有中央抽头的单相变压器，并采用SCR全桥电路。 上述整体结构的特征在于部件数量的减少，功率开关的减少以及控制电路和驱动电路的简化，从而减少了全控开关元件的数量，提高了系统的可靠性，并减少了 系统成本。

公开(公告)号：US20150295512A1

公开(公告)日：2015-10-15

申请号：US14685723

申请日：2015-04-14

Applicant: FRONIUS INTERNATIONAL GMBH

Inventor： Joachim DANMAYR ,  Johannes STARZINGER ,  Julian LANDAUER

IPC: H02M7/44

CPC classification number: H02M7/44 ,  H02M1/36 ,  H02M3/00 ,  H02M2001/007 ,  Y02E10/56

Abstract: 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).

Abstract translation: 用于将能量从光伏系统（1）的光伏模块（2）馈送到供电电网（5）或负载中的能量的方法将由逆变器中的光伏模块（2）产生的直流电压（UDC） 3），具有电容器（CZW）的中间电路（7）和具有DC / AC转换器（8）的AC电压（UAC），并且在馈入工作模式下，连接逆变器 与用于执行该方法的逆变器（3）一起通过开关装置（4）连接到电网（5）或负载。 为了保护开关器件（4），在测试过程中确定光伏模块（2）的输入功率（Pe），并且如果输入功率（Pe）被激活，则逆变器（3）的开关器件（4）被激活 ）大于或等于规定的最小输入功率（Pe，min）。

公开(公告)号：US20150263641A1

公开(公告)日：2015-09-17

申请号：US14636833

申请日：2015-03-03

Applicant: Sanyo Electric Co., Ltd.

Inventor： Yoshinori NORITAKE ,  Kiyoma YAMAGISHI

IPC: H02M7/06

CPC classification number: H02M7/06 ,  H02M1/44 ,  H02M7/48 ,  H02M2001/007 ,  Y02E10/56

Abstract: An inverter device, including: a booster circuit that includes a switch element and a booster coil, the booster circuit boosting a voltage of direct-current power by the switch element being driven using a first on-off signal; an inverter circuit that includes switch elements, the inverter circuit converting the direct-current power, which is outputted from the booster circuit, into alternating-current power by the switch elements being driven using a second on-off signal; a coil for filter through which the alternating-current power passes; and a control unit configured to drive (i) the switch element using the first on-off signal for which a duty cycle is changed according to a first frequency, and (ii) the switch elements using the second on-off signal generated based on a carrier wave having a second frequency higher than a first frequency and a modulation wave having a frequency which synchronizes to a frequency of a power grid.

Abstract translation: 一种逆变器装置，包括：升压电路，包括开关元件和升压线圈，所述升压电路使用第一开关信号驱动所述开关元件来提升直流电力的电压; 逆变器电路，其包括开关元件，所述逆变器电路将由升压电路输出的直流电力转换为通过使用第二开关信号驱动的开关元件的交流电力; 交流电通过的滤波器线圈; 以及控制单元，被配置为使用根据第一频率改变占空比的第一开 - 关信号来驱动（i）开关元件，以及（ii）使用基于第一频率产生的第二开 - 关信号的开关元件 具有高于第一频率的第二频率的载波和具有与电力网频率同步的频率的调制波。

公开(公告)号：US20150214889A1

公开(公告)日：2015-07-30

申请号：US14479148

申请日：2014-09-05

Applicant: LG ELECTRONICS INC.

Inventor： Hyukjin NAM ,  Jungguen KIM ,  Joonho JEON ,  Jinyoung CHO ,  Daehyun SHIN ,  Byungwook WOO ,  Hyunrok MUN

IPC: H02S40/32 ,  H02M3/335 ,  H02S40/36 ,  H02S30/10 ,  H02S40/34

CPC classification number: H02S40/32 ,  H02M3/33507 ,  H02M7/5387 ,  H02S30/10 ,  H02S40/34 ,  H02S40/36 ,  Y02E10/56

Abstract: Discussed is a solar cell module including a solar cell panel, a frame fixed to an outer rim portion of the solar cell panel, an integral inverter including a terminal connected to the solar cell panel to receive direct current, an inverter member electrically connected to the terminal to convert the direct current into alternating current and an alternating current (AC) output cable configured to transmit the alternating current and a trunk cable connected to the AC output cable and fixed to the integral inverter, at least a portion of the trunk cable being located in a space inside the frame.

Abstract translation: 讨论了一种太阳能电池模块，其包括太阳能电池板，固定到太阳能电池板的外缘部分的框架，整体逆变器，包括连接到太阳能电池板以接收直流电的端子，逆变器部件电连接到 终端将直流电转换为交流电;以及交流（AC）输出电缆，其被配置为传送交流电，以及连接到AC输出电缆并固定到整体逆变器的中继电缆，所述主干电缆的至少一部分 位于框架内的空间中。

公开(公告)号：US20150200623A1

公开(公告)日：2015-07-16

申请号：US14479179

申请日：2014-09-05

Applicant: LG ELECTRONICS INC.

Inventor： Younjong KANG ,  Myonghwan KIM ,  Myungsoo HAM ,  Wontae HAM ,  Giyob PARK ,  Byoungsu YOON

IPC: H02S40/32 ,  H02J7/35 ,  H02S40/34

CPC classification number: H02S40/32 ,  H02J7/35 ,  H02M1/14 ,  H02M3/335 ,  H02M7/493 ,  H02M7/5387 ,  H02S40/34 ,  Y02E10/56

Abstract: A photovoltaic module is discussed. The photovoltaic module includes a solar cell module including a plurality of solar cells and a junction box attached to a rear surface of the solar cell module, the junction box including a power conversion module to convert direct current (DC) voltage supplied from the solar cell module into alternating current (AC) voltage and to output the AC voltage, wherein the power conversion module included at least one bypass diode to receive the DC voltage from the solar cell module, a converter unit to power-convert the DC voltage from the at least one bypass diode, the converter unit including at least three interleaving converters, a capacitor to store voltage output from the converter unit, and an inverter unit to output the AC voltage using the voltage stored in the capacitor. Consequently, it is possible to stably output AC voltage.

Abstract translation: 讨论了光伏组件。 光伏模块包括太阳能电池模块，该太阳能电池模块包括多个太阳能电池和连接到太阳能电池模块背面的接线盒，该接线盒包括一个电力转换模块，用于转换从太阳能电池提供的直流（DC）电压 模块转换为交流（AC）电压并输出交流电压，其中功率转换模块包括至少一个旁路二极管以接收来自太阳能电池模块的直流电压;转换器单元，用于从直流电压 至少一个旁路二极管，所述转换器单元包括至少三个交错转换器，用于存储来自所述转换器单元的电压输出的电容器;以及逆变器单元，用于使用所述电容器中存储的电压输出所述AC电压。 因此，可以稳定地输出交流电压。

公开(公告)号：US09083173B2

公开(公告)日：2015-07-14

申请号：US12544338

申请日：2009-08-20

Applicant: Stanton Kee Nethery, III

Inventor： Stanton Kee Nethery, III

IPC: H02J9/00 ,  H02H3/00 ,  H02H11/00

CPC classification number: H02J3/38 ,  H02H3/003 ,  H02H11/008 ,  H02J11/00 ,  H02J2003/388 ,  Y02B10/14 ,  Y02E10/56 ,  Y10T307/615 ,  Y10T307/636 ,  Y10T307/724

Abstract: A power generation and control system is easily installed in a consumer household, a business, or an end-user establishment for generating power and preventing power from flowing to a power grid from a consumer circuit during a power outage. A communications transceiver is adapted to transmit a permission signal for allowing power generation only after the control system has been installed. The control system can be adapted to replace an existing circuit breaker in a household circuit breaker box and prevents power from traveling from consumer power generators to the grid during a power outage. In the same manner that end-users can add appliances to existing circuits, end-users can easily add additional power generation devices without hiring a professional electrician and without worrying about causing harm to utility workman during power outages.

Abstract translation: 发电和控制系统易于安装在消费者家庭，企业或最终用户机构中，用于在停电期间发电并防止电力从消费电路流向电网。 通信收发器适于仅在安装控制系统之后发送允许发电的许可信号。 控制系统可以适用于替换家用断路器箱中的现有断路器，并且在停电期间防止电力从消费者发电机行进到电网。 以最终用户可以将电器添加到现有电路的方式，最终用户可以轻松添加额外的发电设备，而不需要聘请专业电工，也不用担心在停电期间对公用事业工人造成危害。

公开(公告)号：US09065345B2

公开(公告)日：2015-06-23

申请号：US13163940

申请日：2011-06-20

Applicant: Klaus Rigbers ,  Regine Mallwitz ,  Bernd Engel ,  Peter Zacharias

Inventor： Klaus Rigbers ,  Regine Mallwitz ,  Bernd Engel ,  Peter Zacharias

IPC: H02M7/537 ,  H02M3/335 ,  H02M1/00

CPC classification number: H02M3/33523 ,  H02M2001/0058 ,  Y02B70/1433 ,  Y02B70/1491 ,  Y02E10/56

Abstract: A transformerless inverter that serves to feed electricity from a DC current source into an AC power grid, has an inverter bridge and a DC/DC converter connected upstream of the inverter bridge. The DC/DC converter converts an input DC voltage that is present between two input lines of the inverter into a DC link voltage present between two input lines of the inverter bridge. The inverter bridge converts the DC link voltage present at the input lines thereof into an output AC voltage. The DC/DC converter includes at least one resonant circuit that has a resonance inductance and a resonance capacitance and is connected on its input side via at least two clocked switches to one of the two input lines of the inverter or an intermediate potential line carrying a potential in between. The input lines of the inverter and the input lines of the inverter bridge are galvanically isolated from one another by a capacitive method. The resonant circuit may be undivided and is connected alternately to the two input lines of the inverter bridge.

Abstract translation: 用于从直流电源馈入交流电网的无变压器逆变器具有逆变桥和连接在逆变桥上游的DC / DC转换器。 DC / DC转换器将存在于逆变器桥的两个输入线之间的直流链路电压中的逆变器的两个输入线之间存在的输入直流电压进行转换。 逆变桥将其输入线上存在的直流母线电压转换为输出交流电压。 DC / DC转换器包括至少一个谐振电路，其具有谐振电感和谐振电容，并且通过至少两个时钟控制的开关连接到其输入侧到逆变器的两个输入线之一或承载一个 之间的潜力。 逆变器的输入线和逆变桥的输入线通过电容法彼此电隔离。 谐振电路可以不分开，并且交替地连接到逆变器桥的两条输入线。

公开(公告)号：US20150103575A1

公开(公告)日：2015-04-16

申请号：US14108438

申请日：2013-12-17

Applicant: Delta Electronics, Inc.

Inventor： Chen-Wei KU ,  Wei-Lun HSIN

IPC: H02M7/5387

CPC classification number: H02M7/5387 ,  H02M7/48 ,  Y02E10/56

Abstract: A solar photovoltaic power conversion system is provided to convert a DC input voltage into an AC output voltage, which mainly includes an input capacitor bank, a first switching circuit, a second switching circuit, a first filtering circuit, a second filtering circuit, and a control circuit. The first switching circuit has a first power switch and a second power switch. The second switching circuit has a third power switch and a fourth power switch. The control circuit produces a first control signal, a second control signal, a third control signal, and a fourth control signal to respectively control the first power switch, the second power switch, the third power switch, and the fourth power switch so as to reduce leakage current of the DC input voltage caused by parasitic capacitance voltage.

Abstract translation: 提供一种将DC输入电压转换为AC输出电压的太阳能光伏电力转换系统，其主要包括输入电容器组，第一开关电路，第二开关电路，第一滤波电路，第二滤波电路和 控制电路。 第一开关电路具有第一电源开关和第二电源开关。 第二开关电路具有第三电源开关和第四电源开关。 控制电路产生第一控制信号，第二控制信号，第三控制信号和第四控制信号，以分别控制第一电源开关，第二电源开关，第三电源开关和第四电源开关，以便 降低由寄生电容电压引起的直流输入电压的漏电流。

公开(公告)号：US08929038B2

公开(公告)日：2015-01-06

申请号：US13778876

申请日：2013-02-27

Applicant: Ellenberger & Poesngen GmbH

Inventor： Christian Strobl ,  Markus Miklis

IPC: H02H3/00 ,  H02H1/00 ,  G01R31/40 ,  H02H7/20

CPC classification number: H02H1/0015 ,  G01R31/045 ,  H02H7/20 ,  H02S50/10 ,  Y02E10/56

Abstract: A method and a device for safely switching a direct-voltage system, in particular a photovoltaic system, in the event of an arc occurring on a direct-current side. Wherein the generated direct current and the produced direct voltage are set with regard to power guidance. In the event of a sensor-detected arc, the power guidance is adjusted and a power change of the arc is detected. In the event of a power drop of the arc, a serial or parallel arc is detected according to the adjustment direction of the power guidance. In the event of a serial arc a direct-current interruption is produced, and in the event of a parallel arc a short-circuit current is produced.

Abstract translation: 在直流侧发生电弧的情况下，用于安全地切换直流电压系统，特别是光伏系统的方法和装置。 其中生成的直流电流和产生的直流电压是关于功率引导设定的。 在传感器检测到的电弧的情况下，调整功率引导并检测电弧的功率变化。 在电弧掉电的情况下，根据电力引导的调整方向检测串联或并联电弧。 在串联电弧的情况下，产生直流中断，并且在并联电弧的情况下产生短路电流。

公开(公告)号：US20140347770A1

公开(公告)日：2014-11-27

申请号：US14453775

申请日：2014-08-07

Applicant: SMA Solar Technology AG

Inventor： Andreas Falk

IPC: H02H3/16 ,  G01R31/02

CPC classification number: H02H3/16 ,  G01R31/025 ,  H01L31/02021 ,  H02H7/20 ,  H02M2001/322 ,  Y02E10/56

Abstract: For protecting a photovoltaic generator comprising photovoltaic modules, having an open circuit voltage higher than an insulation design voltage of its photovoltaic modules and being connected to an AC power grid via an inverter against a surge voltage relative to ground resulting from a ground fault and exceeding the insulation design voltage, the photovoltaic generator is surveyed for the occurrence of the ground fault or the surge voltage. Upon the actual occurrence of the ground fault or the surge voltage, at first, the photovoltaic generator is separated from an input-side intermediate link capacitance of the inverter, and the inverter is separated from the AC power grid. Then, the intermediate link capacitance is discharged via a resistor, prior to permanently closing semiconductor switches of an inverter bridge of the inverter and to reconnecting the photovoltaic generator to the input-side intermediate link capacitance of the inverter to short circuit the photovoltaic generator.

Abstract translation: 为了保护包括光伏模块的光伏发电机，其具有高于其光伏模块的绝缘设计电压的开路电压，并且经由反相器相对于由接地故障产生的相对于地的浪涌电压而连接到AC电力网并且超过 绝缘设计电压，对发生接地故障或浪涌电压的光伏发电机进行了调查。 在实际发生接地故障或浪涌电压时，首先光伏发电机与逆变器的输入侧中间链路电容分离，逆变器与交流电网分离。 然后，在永久地关闭逆变器的逆变桥的半导体开关之前，通过电阻器对中间链路电容进行放电，并且将光伏发电机重新连接到逆变器的输入侧中间链路电容以使光伏发电机短路。