Inverter with asymmetric clocking and thermally isolated modules
    1.
    发明授权
    Inverter with asymmetric clocking and thermally isolated modules 有权
    具有不对称时钟和热隔离模块的逆变器

    公开(公告)号:US08094475B2

    公开(公告)日:2012-01-10

    申请号:US12477948

    申请日:2009-06-04

    IPC分类号: H02M7/5387

    摘要: On an inverter for feeding power of a direct voltage source, in particular of a photovoltaic generator (PVG), into an alternating voltage mains (N), with an asymmetrically clocked bridge circuit with at least two first switches (S1, S2) clocked at mains frequency and with at least two second switches (S3, S4) clocked at a higher clock frequency, the efficiency is intended to be improved at low cost. This is achieved in that slow speed switches (S1, S2) of equal temperature stability are utilized for the mains frequency and that fast speed switches (S3, S4) with steeper switching slopes and higher temperature stability are utilized for the higher clock frequency, the fast speed switches (S3, S4) being locally separated from the slow speed switches (S1, S2).

    摘要翻译: 在用于将直流电压源(特别是光伏发电机(PVG))的功率馈送到具有非对称时钟的桥式电路的逆变器中,所述桥式电路具有至少两个第一开关(S1,S2),时钟为 电源频率和以更高时钟频率计时的至少两个第二开关(S3,S4),效率旨在以低成本提高。 这是通过使用等温稳定性的低速开关(S1,S2)用于电源频率,并且用于更高时钟频率的具有更陡的开关斜率和更高的温度稳定性的快速开关(S3,S4), 快速开关(S3,S4)与慢速开关(S1,S2)在本地分离。

    TRANSFORMERLESS INVERTER COMPRISING A DC/DC CONVERTER
    2.
    发明申请
    TRANSFORMERLESS INVERTER COMPRISING A DC/DC CONVERTER 有权
    包含DC / DC转换器的无变换逆变器

    公开(公告)号:US20110267863A1

    公开(公告)日:2011-11-03

    申请号:US13163940

    申请日:2011-06-20

    IPC分类号: H02M7/5387

    摘要: 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.

    摘要翻译: 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。

    Inverter capable of providing reactive power
    3.
    发明授权
    Inverter capable of providing reactive power 有权
    逆变器能够提供无功功率

    公开(公告)号:US08638581B2

    公开(公告)日:2014-01-28

    申请号:US13439314

    申请日:2012-04-04

    IPC分类号: H02M7/5387

    摘要: In an inverter includes two input lines for connection to a DC voltage source, two half-bridges connecting the two input lines, and two output lines for connection to an alternating current load or an AC power grid. Each half-bridge includes two pulse-operated switches with reverse connected diodes, each output line is connected to a center point of one of the half-bridges via an inductance, and the two output lines are connected to the same one of the input lines via a further pulse-operated switch behind the inductance with respect to the associated half-bridge.

    摘要翻译: 在逆变器中包括用于连接到DC电压源的两条输入线,连接两条输入线的两条半桥,以及用于连接到交流电力或交流电网的两条输出线。 每个半桥包括两个具有反向连接二极管的脉冲操作开关,每个输出线经由电感连接到其中一个半桥的中心点,两条输出线连接到同一条输入线 通过相对于相关联的半桥的电感后面的另一脉冲操作开关。

    Inverter for grounded direct current source, more specifically for a photovoltaic generator
    4.
    发明申请
    Inverter for grounded direct current source, more specifically for a photovoltaic generator 有权
    逆变器用于接地的直流电源,更具体地说是用于光伏发电机

    公开(公告)号:US20090034304A1

    公开(公告)日:2009-02-05

    申请号:US12218018

    申请日:2008-07-10

    IPC分类号: H02M7/48

    摘要: An inverter (1) for a grounded direct voltage source, in particular for a photovoltaic generator (2), a battery or a fuel cell, for converting the direct voltage into an alternative voltage with a DC-DC converter (3) and a pulse inverter that is supplied by said DC-DC converter (3), said DC-DC converter (3) being configured to be an oscillating circuit inverter and comprising a series resonant oscillating circuit, said DC-DC converter (3), which is configured to be an oscillating circuit inverter, being configured to be a series-compensated oscillating circuit inverter with a choke (L1) and a series-mounted capacitor array consisting of two or several oscillating circuit capacitors, a rectifier bridge branch including 2 diodes (D3, D4; D5, D6, . . . ), being connected to each of the partial oscillating circuit capacitors, said rectifier bridge branch being connected with its positive or its negative pole to output side intermediate circuit capacitors which are preferably connected in series so that said DC-DC converter (3) delivers at least two bipolar output voltages and is combined with the pulse inverter (4) with a divided voltage intermediate circuit that is supplied from the oscillating circuit inverter.

    摘要翻译: 一种用于接地的直流电压源的逆变器(1),特别是用于光伏发电机(2),电池或燃料电池,用于利用DC-DC转换器(3)将脉冲转换为替代电压 由所述DC-DC转换器(3)提供的逆变器,所述DC-DC转换器(3)被配置为振荡电路逆变器,并且包括串联谐振振荡电路,所述DC-DC转换器(3)被配置 作为具有扼流圈(L1)和由两个或多个振荡电路电容器组成的串联安装的电容器阵列的串联补偿的振荡电路逆变器,包括2个二极管(D3, D4; D5,D6 ...),连接到每个部分振荡电路电容器,所述整流桥分支与其正极或负极连接到输出侧中间电路电容器,其优选地以s连接 使得所述DC-DC转换器(3)输送至少两个双极性输出电压,并且与从脉冲电路逆变器提供的分压电压中间电路与脉冲逆变器(4)组合。

    Transformerless inverter comprising a DC/DC converter
    5.
    发明授权
    Transformerless inverter comprising a DC/DC converter 有权
    包括DC / DC转换器的无变压器逆变器

    公开(公告)号:US09065345B2

    公开(公告)日:2015-06-23

    申请号:US13163940

    申请日:2011-06-20

    IPC分类号: H02M7/537 H02M3/335 H02M1/00

    摘要: 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.

    摘要翻译: 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。

    INVERTER CAPABLE OF PROVIDING REACTIVE POWER
    6.
    发明申请
    INVERTER CAPABLE OF PROVIDING REACTIVE POWER 有权
    具有提供反应能力的逆变器

    公开(公告)号:US20120236616A1

    公开(公告)日:2012-09-20

    申请号:US13439314

    申请日:2012-04-04

    IPC分类号: H02M7/5387

    摘要: In an inverter includes two input lines for connection to a DC voltage source, two half-bridges connecting the two input lines, and two output lines for connection to an alternating current load or an AC power grid. Each half-bridge includes two pulse-operated switches with reverse connected diodes, each output line is connected to a center point of one of the half-bridges via an inductance, and the two output lines are connected to the same one of the input lines via a further pulse-operated switch behind the inductance with respect to the associated half-bridge.

    摘要翻译: 在逆变器中包括用于连接到DC电压源的两条输入线,连接两条输入线的两条半桥,以及用于连接到交流电力或交流电网的两条输出线。 每个半桥包括两个具有反向连接二极管的脉冲操作开关,每个输出线经由电感连接到其中一个半桥的中心点,两条输出线连接到同一条输入线 通过相对于相关联的半桥的电感后面的另一脉冲操作开关。

    Inverter for grounded direct current source, more specifically for a photovoltaic generator
    7.
    发明授权
    Inverter for grounded direct current source, more specifically for a photovoltaic generator 有权
    逆变器用于接地的直流电源,更具体地说是用于光伏发电机

    公开(公告)号:US08023288B2

    公开(公告)日:2011-09-20

    申请号:US12218018

    申请日:2008-07-10

    IPC分类号: H02M3/335

    摘要: An inverter (1) for a grounded direct voltage source, in particular for a photovoltaic generator (2), a battery or a fuel cell, for converting the direct voltage into an alternative voltage with a DC-DC converter (3) and a pulse inverter that is supplied by said DC-DC converter (3), said DC-DC converter (3) being configured to be an oscillating circuit inverter and comprising a series resonant oscillating circuit, said DC-DC converter (3), which is configured to be an oscillating circuit inverter, being configured to be a series-compensated oscillating circuit inverter with a choke (L1) and a series-mounted capacitor array consisting of two or several oscillating circuit capacitors, a rectifier bridge branch including 2 diodes (D3, D4; D5, D6, . . . ), being connected to each of the partial oscillating circuit capacitors, said rectifier bridge branch being connected with its positive or its negative pole to output side intermediate circuit capacitors which are preferably connected in series so that said DC-DC converter (3) delivers at least two bipolar output voltages and is combined with the pulse inverter (4) with a divided voltage intermediate circuit that is supplied from the oscillating circuit inverter.

    摘要翻译: 一种用于接地的直流电压源的逆变器(1),特别是用于光伏发电机(2),电池或燃料电池,用于利用DC-DC转换器(3)将脉冲转换为替代电压 由所述DC-DC转换器(3)提供的逆变器,所述DC-DC转换器(3)被配置为振荡电路逆变器,并且包括串联谐振振荡电路,所述DC-DC转换器(3)被配置 作为具有扼流圈(L1)和由两个或多个振荡电路电容器组成的串联安装的电容器阵列的串联补偿的振荡电路逆变器,包括2个二极管(D3, D4; D5,D6 ...),连接到每个部分振荡电路电容器,所述整流桥分支与其正极或负极连接到输出侧中间电路电容器,其优选地以s连接 使得所述DC-DC转换器(3)输送至少两个双极性输出电压,并且与从脉冲电路逆变器提供的分压电压中间电路与脉冲逆变器(4)组合。

    System and method for a power converter having a resonant circuit
    8.
    发明授权
    System and method for a power converter having a resonant circuit 有权
    具有谐振电路的功率转换器的系统和方法

    公开(公告)号:US08264857B2

    公开(公告)日:2012-09-11

    申请号:US12498478

    申请日:2009-07-07

    IPC分类号: H02M3/335

    摘要: A direct current-direct current (DC/DC) converter operated in the resonant mode of operation for converting a direct input voltage into a direct output voltage with a bridge circuit located on the input side and incorporating switching elements, with a resonance circuit incorporating a resonance inductance and a resonance capacitance as well as with a high-frequency transformer for galvanic separation is disclosed, the transformer incorporates at least one primary winding and at least one secondary winding with at least two winding terminals each. The alternating current (AC) output of the bridge circuit is connected to the primary winding and a rectifier bridge with diodes to the secondary winding. A voltage boosting circuit array is connected downstream of the resonant circuit in such a manner that at least one additionally controllable switching element is contained, which is connected in parallel or in series to at least one additional diode or to at least one diode of the rectifier bridge on the secondary side, this array being connected in parallel to the high-frequency transformer so that the additional switching element short-circuits the resonance circuit in a triggered condition so that energy is stored in the resonance inductance and is delivered in the non-triggered condition.

    摘要翻译: 一种直流电直流(DC / DC)转换器,其工​​作在谐振工作模式,用直接输入电压转换为直接输出电压,桥接电路位于输入侧并结合有开关元件,谐振电路包含一个 公开了谐振电感和谐振电容以及用于电流分离的高频变压器,变压器包括至少一个初级绕组和至少一个次级绕组,每个次级绕组具有至少两个绕组端子。 桥式电路的交流(AC)输出连接到初级绕组和具有二极管的次级绕组的整流桥。 电压升压电路阵列以这样的方式连接在谐振电路的下游,使得至少一个另外可控的开关元件被包含,该开关元件并联或串联连接到至少一个额外的二极管或整流器的至少一个二极管 桥接在次级侧,该阵列并联连接到高频变压器,使得额外的开关元件在触发条件下使谐振电路短路,从而将能量存储在谐振电感中, 触发条件。

    DC/DC converter
    9.
    发明授权
    DC/DC converter 有权
    DC / DC转换器

    公开(公告)号:US08138638B2

    公开(公告)日:2012-03-20

    申请号:US12498513

    申请日:2009-07-07

    IPC分类号: G05F3/06

    摘要: The object of the invention is a high-efficiency DC/DC converter, in particular for photovoltaic plants, incorporating a transformerless DC/DC converter operated in the resonant mode of operation for converting a unipolar direct input voltage with an associated positive pole (+) and with a negative pole (−). There is imposed a resonance circuit incorporating at least one resonance inductance and at least one resonance capacitance, each resonance capacitance being connected to a respective one of the rectifier circuit arrangements in such a manner that the bipolar direct output voltage is provided, a voltage boosting circuit arrangement being connected to each resonance capacitance and to the rectifier circuit arrangement.

    摘要翻译: 本发明的目的是一种高效率DC / DC转换器,特别是用于光伏电站的并入无谐振DC / DC转换器的高效率DC / DC转换器,其工​​作在谐振工作模式下,用于转换具有相关正极(+)的单极直接输入电压 并带负极( - )。 施加了包括至少一个谐振电感和至少一个谐振电容的谐振电路,每个谐振电容以提供双极直接输出电压的方式连接到相应的一个整流器电路装置,升压电路 连接到每个谐振电容和整流电路装置。

    Inverter
    10.
    发明授权
    Inverter 有权
    逆变器

    公开(公告)号:US07957168B2

    公开(公告)日:2011-06-07

    申请号:US12221124

    申请日:2008-07-31

    IPC分类号: H02M7/5387 H02M7/493

    摘要: An inverter (1) for feeding electric power into a utility grid (7) or into a load is described. The inverter (1) contains two direct voltage inputs (2, 3), one first intermediate circuit (8) connected thereto and comprising two series connected capacitors (C1, C2) that are connected together at a ground terminal (14), two alternating voltage outputs (5, 6) of which one at least is provided with a grid choke (L1) and one bridge section (10). In accordance with the invention, a second intermediate circuit (9) that is devised at least for selectively boosting the direct voltage and is intended for supplying the bridge section (10) with positive and negative voltage is interposed between the first intermediate circuit (8) and the bridge section (10).

    摘要翻译: 描述了用于将电力馈送到公用电网(7)或负载中的逆变器(1)。 逆变器(1)包含两个直流电压输入(2,3),一个连接到其上的第一中间电路(8),并包括在接地端子(14)处连接在一起的两个串联电容器(C1,C2),两个交替 电压输出(5,6)至少具有栅极(L1)和一个桥接部分(10)。 根据本发明,至少设计用于选择性地升压直流电压并且用于向桥接部分(10)提供正和负电压的第二中间电路(9)插入在第一中间电路(8) 和桥接部分(10)。