Universal power supply for discharge lamps
    11.
    发明授权
    Universal power supply for discharge lamps 失效
    放电灯通用电源

    公开(公告)号:US6081077A

    公开(公告)日:2000-06-27

    申请号:US109138

    申请日:1998-07-02

    摘要: A power supply circuit for discharge lamps having a load circuit with at least one discharge lamp and controlled switches with a switching control means which control the opening and closing of the switches to supply the load circuit with a high-frequency alternating signal. A recognition circuit, which recognizes the type of lamp connected to the load circuit by the power rating of the lamp, is provided. Control means which modify the switching conditions of the switches according to the type of lamp connected to the load circuit are also provided.

    摘要翻译: 一种用于具有至少一个放电灯的负载电路和具有开关控制装置的控制开关的放电灯的电源电路,其控制开关的打开和闭合以向负载电路提供高频交替信号。 提供了通过灯的额定功率来识别连接到负载电路的灯的类型的识别电路。 还提供了根据连接到负载电路的灯的类型来修改开关的开关条件的控制装置。

    Method and system for extracting electric power from a renewable power source
    12.
    发明授权
    Method and system for extracting electric power from a renewable power source 有权
    从可再生能源提取电力的方法和系统

    公开(公告)号:US08937827B2

    公开(公告)日:2015-01-20

    申请号:US13143627

    申请日:2009-01-07

    IPC分类号: H02M5/42 G05F1/67

    CPC分类号: G05F1/67 Y10S323/906

    摘要: The plant comprises: a DC-voltage electric power source (3), whose operating conditions vary as a function of at least one uncontrollable quantity, for each value of the uncontrollable quantity the source presenting a characteristic curve of the supplied power as a function of a controlled quantity, wherein each characteristic curve presents a maximum for an optimal value of said controlled quantity; a power conditioning circuit (5); a regulation loop (9) to adjust the controlled quantity maximizing the power supplied by the source when said uncontrollable quantity varies. The regulation loop is de-signed in such a way as to determine whether, for the actual value of said uncontrollable quantity, the actual value of the controlled quantity (V.in) is greater or lower than the optimal value and to generate a regulation signal (V.in-REF) to modify the actual value of the controlled quantity towards the optimal value.

    摘要翻译: 该工厂包括:对于不可控量的每个值,其作为至少一个不可控量的函数的操作条件变化的直流电压电源(3),其呈现作为供应电力的函数的所提供功率的特性曲线 控制量,其中每个特征曲线呈现所述受控量的最佳值的最大值; 功率调节电路(5); 调节回路(9),用于当所述不可控数量变化时,调节受控量使得由源提供的功率最大化。 调节循环以这样一种方式进行解码,以确定对于所述不可控量的实际值,控制量(V.in)的实际值是否大于或低于最佳值,并且产生调节 信号(V.in-REF)将受控数量的实际值修改为最优值。

    Dock leveler blanket
    13.
    发明授权
    Dock leveler blanket 有权
    码头平整机毯

    公开(公告)号:US08214956B2

    公开(公告)日:2012-07-10

    申请号:US12503477

    申请日:2009-07-15

    IPC分类号: E04B1/74

    CPC分类号: B65G69/2876

    摘要: An insulative blanket is sized and shaped to cover a dock leveler deck and the gaps between the deck and a surrounding dock platform to prevent the transfer of heat through the deck or across the gaps. A batten structure is combined with the blanket such that the combination forms a relatively rigid structure which can be easily placed and maintained in its desired position. The combination is raised and lowered by an attached line and a suspended overhead container is provided to further collapse the combination as it is raised and stored within the container.

    摘要翻译: 绝缘毯的尺寸和形状被设计成覆盖码头矫直机甲板以及甲板和周围的码头平台之间的间隙,以防止热量通过甲板或间隙传递。 板条结构与毯子组合,使得组合形成相对刚性的结构,其可以容易地放置并保持在其期望的位置。 组合通过连接线升高和降低,并且提供悬浮的顶部容器以在组合被升高并存储在容器内时进一步使组合件折叠。

    Method and device for the control of a three-phase inverter
    14.
    发明授权
    Method and device for the control of a three-phase inverter 有权
    用于控制三相逆变器的方法和装置

    公开(公告)号:US07760526B2

    公开(公告)日:2010-07-20

    申请号:US11349620

    申请日:2006-02-08

    IPC分类号: H02M3/24 H02M7/44

    摘要: A method of controlling an inverter to includes determining the components of a phasor representing the output current from the inverter in a fixed reference system; determining the components of the current phasor in a reference system rotating at a velocity equal to the velocity of rotation of the phasor representing the grid voltage; and comparing the components of the current phasor in the rotating reference system with a reference, again expressed in the rotating reference system, to determine an error signal, by means of which the inverter is controlled.

    摘要翻译: 一种控制逆变器的方法,包括在固定参考系统中确定代表来自逆变器的输出电流的相量的分量; 确定参考系中的当前相量的分量,其以等于表示电网电压的相量的旋转速度的速度旋转; 并且将旋转参考系中的当前相量的分量与在旋转参考系中再次表示的参考进行比较,以确定误差信号,由此控制逆变器。

    DOCK LEVELER INSULATION
    15.
    发明申请
    DOCK LEVELER INSULATION 审中-公开
    锁定保险丝

    公开(公告)号:US20100017976A1

    公开(公告)日:2010-01-28

    申请号:US12177514

    申请日:2008-07-22

    IPC分类号: E01D1/00

    CPC分类号: B65G69/287

    摘要: The bottom surface of a dock leveler is insulated by attaching sheets of insulative material between adjacent support beams. Attachment is by way of magnet attached to the bottom surface of the deck to hold downwardly projecting spikes that penetrate the insulative material, with a self locking washer then being placed over the spike in order to secure the sheet of material in place. Installation with variable widths between adjacent support beams is facilitated by pre-perforating the sheets of insulative material along longitudinal lines to thereby allow easy separation and width adjustment to match the variable widths between the support beams.

    摘要翻译: 通过在相邻的支撑梁之间连接一层绝缘材料来使船舶矫直机的底面绝缘。 附件是通过附着到甲板底面的磁体,以保持穿过绝缘材料的向下突出的钉,随后将自锁垫圈放置在钉上,以将材料片固定就位。 通过沿着纵向线预穿孔绝缘材料来促进相邻支撑梁之间的可变宽度的安装,从而允许容易的分离和宽度调整以匹配支撑梁之间的可变宽度。

    Method and device for the control of a three-phase inverter
    16.
    发明申请
    Method and device for the control of a three-phase inverter 有权
    用于控制三相逆变器的方法和装置

    公开(公告)号:US20060186855A1

    公开(公告)日:2006-08-24

    申请号:US11349620

    申请日:2006-02-08

    IPC分类号: H02P27/04

    摘要: A method of controlling an inverter to includes determining the components of a phasor representing the output current from the inverter in a fixed reference system; determining the components of the current phasor in a reference system rotating at a velocity equal to the velocity of rotation of the phasor representing the grid voltage; and comparing the components of the current phasor in the rotating reference system with a reference, again expressed in the rotating reference system, to determine an error signal, by means of which the inverter is controlled.

    摘要翻译: 一种控制逆变器的方法,包括在固定参考系统中确定代表来自逆变器的输出电流的相量的分量; 确定参考系中的当前相量的分量,其以等于表示电网电压的相量的旋转速度的速度旋转; 并且将旋转参考系中的当前相量的分量与在旋转参考系中再次表示的参考进行比较,以确定误差信号,由此控制逆变器。

    Emergency power generating unit for trains and train comprising said unit
    17.
    发明申请
    Emergency power generating unit for trains and train comprising said unit 审中-公开
    包括所述单元的列车和列车的应急发电机组

    公开(公告)号:US20060144284A1

    公开(公告)日:2006-07-06

    申请号:US10534792

    申请日:2003-11-19

    IPC分类号: B61C7/04

    CPC分类号: B61C3/00

    摘要: An emergency power generating unit (2), comprising a gas turbine (23) to supply a train on-board systems in the event of a failure of the main electrical power supply. Specifically the power generated by the turbine is used to run an electrical energy generator (29) for powering an air conditioning system (77).

    摘要翻译: 一种紧急发电单元(2),包括在主电源发生故障的情况下提供车载系统的燃气轮机(23)。 具体地,由涡轮产生的动力用于运行用于为空调系统(77)供电的电能发生器(29)。

    Control of Leakage Currents in Systems with a Plurality of Parallel Inverters
    20.
    发明申请
    Control of Leakage Currents in Systems with a Plurality of Parallel Inverters 有权
    控制多个并联逆变器系统中的泄漏电流

    公开(公告)号:US20150171766A1

    公开(公告)日:2015-06-18

    申请号:US14238170

    申请日:2011-08-12

    IPC分类号: H02M7/493 H02J3/38

    摘要: There is described an electrical energy conversion system comprising: at least a first inverter (1) and at least a second inverter (2), whose outputs are connected in parallel; at least a first DC voltage source (PV1) connected to the input of the first inverter (1) and a second DC voltage source (PV2) connected to the input of the second inverter (2); a ground connection of the first inverter (1) and a ground connection of the second inverter (2). The ground connection of said inverters comprises a ground connection branch (1G; 2G) with a current sensor (5/1; 5/2) which supplies a signal proportional to a leakage grounding current (Ileak) measured in said ground connection branch (1G; 2G). Through the signal proportional to the leakage current measured a feedback signal is generated to control the leakage current (Ileak).

    摘要翻译: 描述了一种电能转换系统,包括:至少第一逆变器(1)和至少第二逆变器(2),其输出并联连接; 至少连接到第一逆变器(1)的输入的第一直流电压源(PV1)和连接到第二逆变器(2)的输入的第二直流电压源(PV2); 第一逆变器(1)的接地连接和第二逆变器(2)的接地连接。 所述逆变器的接地连接包括具有电流传感器(5/1; 5/2)的接地连接分支(1G; 2G),其提供与在所述接地连接支路(1G)中测量的泄漏接地电流(Ileak)成比例的信号 ; 2G)。 通过与泄漏电流成比例的信号,产生反馈信号来控制漏电流(Ileak)。