Energy supply system having a coupling device

    公开(公告)号:US12003104B2

    公开(公告)日:2024-06-04

    申请号:US17584982

    申请日:2022-01-26

    Inventor: Claus Allert

    CPC classification number: H02J3/0073 H02J3/32 H02J3/388 H02J9/062

    Abstract: A local power supply system having a grid transfer point for the connection of an energy supply grid has a first transmission line for transmitting electrical energy from the grid transfer point to a first terminal for connecting an arrangement of consumers, and a second transmission line for transmitting electrical energy between the grid transfer point and a second terminal for connecting an arrangement of energy stores. A first disconnector is arranged in the first transition line between the grid transfer point and the first terminal, and a second disconnector is arranged in the second transmission line between the grid transfer point and the second terminal. A coupling device, which electrically connects the first terminal and the second terminal, has a first switch and a second switch connected in series thereto, wherein a coupling element is arranged between the two switches connected in series, which coupling element has a grounding apparatus, a phase connection apparatus, a neutral conductor connection apparatus, a connection to a diesel generator and/or an apparatus for generating a neutral conductor potential. The disclosure also relates to a method for operating such a system.

    System for distributing locally generated energy to multiple load units

    公开(公告)号:US11527887B2

    公开(公告)日:2022-12-13

    申请号:US17340442

    申请日:2021-06-07

    Abstract: A system for distributing locally generated energy from at least one renewable DC source to a plurality of local load units of the system, including, for each load unit: an input terminal configured to connect to a grid, and an output terminal configured to connect to at least one load. Further for each load the system includes an inverter including an inverter input and an inverter output, wherein the inverter input is connected to the at least one renewable DC source and the inverter output is connected to the input terminal and to the output terminal of the respective load unit, and wherein the inverter is configured to convert a direct current at the inverter input into an alternating current at the inverter output. The system also includes a power meter including a power meter input connected to the input terminal of the respective load unit, wherein the power meter is configured to determine a current power consumption from the grid, and wherein the power meter includes a power meter output connected to the inverter of the respective load unit, and wherein the power meter is configured to transmit data relating to the current power consumption from the grid to the inverter. The inverter of the respective load unit is configured to determine an input DC voltage applied to its inverter input and to determine a power to be currently converted from the applied input DC voltage and the current power consumption data transmitted thereto.

    Grid Diagram Creation and Operation Control
    3.
    发明申请
    Grid Diagram Creation and Operation Control 审中-公开
    网格图创建和操作控制

    公开(公告)号:US20150153153A1

    公开(公告)日:2015-06-04

    申请号:US14571386

    申请日:2014-12-16

    Abstract: For determining the topology of a grid section of an AC power grid, the grid section comprising a grid connection point, at least one branch branching off from the grid connection point and including a plurality of energy consumption and/or energy generation units, and at least one measurement point in the at least one branch, dependencies of variations of a grid voltage measured at the at least one measurement point based on variations of connection power values of at least some individual ones of the energy consumption and/or energy generation units are determined.

    Abstract translation: 为了确定交流电网的电网部分的拓扑,电网部分包括电网连接点,至少一个分支从电网连接点分支并包括多个能量消耗和/或能量产生单元,以及 至少一个分支中的至少一个测量点,基于能量消耗和/或能量产生单元中的至少一些个体的连接功率值的变化,在至少一个测量点测量的电网电压的变化的依赖性是 决心。

    Device for connecting a sub-network to an alternating voltage network and method for controlling an electrical power

    公开(公告)号:US11563383B2

    公开(公告)日:2023-01-24

    申请号:US17005783

    申请日:2020-08-28

    Abstract: A method for controlling an electrical power which flows into or out of an electrical subnetwork via a connection point is disclosed. The subnetwork has at least one electrical load, and the electrical load is connected to a control device via a communication connection, the electrical power flowing via the connection point is measured and a maximum power consumption of the electrical load is set by means of the control device on the basis of the electrical power flowing via the connection point. A device for connecting a multiphase subnetwork, which has an energy production installation and an energy store, to a superordinate multiphase alternating voltage network is configured to transmit electrical power between the alternating voltage network and the subnetwork and comprises an AC/AC converter having a network connection, two inverter bridge circuits with an interposed intermediate circuit and a subnetwork connection. The device also comprises a control device which is configured to set the electrical powers flowing via the individual phases of the subnetwork connection on the basis of power values of the energy production installation and/or of the energy store by suitably controlling the inverter bridge circuits of the AC/AC converter.

    SYSTEM FOR DISTRIBUTING LOCALLY GENERATED ENERGY TO MULTIPLE LOAD UNITS

    公开(公告)号:US20210296891A1

    公开(公告)日:2021-09-23

    申请号:US17340442

    申请日:2021-06-07

    Abstract: A system for distributing locally generated energy from at least one renewable DC source to a plurality of local load units of the system, including, for each load unit: an input terminal configured to connect to a grid, and an output terminal configured to connect to at least one load. Further for each load the system includes an inverter including an inverter input and an inverter output, wherein the inverter input is connected to the at least one renewable DC source and the inverter output is connected to the input terminal and to the output terminal of the respective load unit, and wherein the inverter is configured to convert a direct current at the inverter input into an alternating current at the inverter output. The system also includes a power meter including a power meter input connected to the input terminal of the respective load unit, wherein the power meter is configured to determine a current power consumption from the grid, and wherein the power meter includes a power meter output connected to the inverter of the respective load unit, and wherein the power meter is configured to transmit data relating to the current power consumption from the grid to the inverter. The inverter of the respective load unit is configured to determine an input DC voltage applied to its inverter input and to determine a power to be currently converted from the applied input DC voltage and the current power consumption data transmitted thereto.

    Standby power supply system and methods for isolating a local power distribution network from a superordinate power supply network

    公开(公告)号:US09716407B2

    公开(公告)日:2017-07-25

    申请号:US14743313

    申请日:2015-06-18

    Inventor: Claus Allert

    CPC classification number: H02J9/061 H02J3/38 Y10T307/615

    Abstract: The disclosure relates to a standby power supply system for connection to a superordinate power supply network and a local power distribution network, having a network isolation device for connecting the local power distribution network to the superordinate power supply network by means of at least two series-connected switching elements with respectively associated switching contacts and having a local power supply device with a separate-network detector for identifying a separation situation for the local power distribution network. A first of the two switching elements is connected to the superordinate power supply network and the second of the two switching elements is connected to the local power supply device. The disclosure furthermore relates to methods for isolating a local power distribution network from a superordinate power supply network.

    Changeover device, retrofit kit and method for supplying electrical power to a load

    公开(公告)号:US12074473B2

    公开(公告)日:2024-08-27

    申请号:US17866741

    申请日:2022-07-18

    Inventor: Claus Allert

    Abstract: A changeover device for selectively supplying power to at least one load from a grid or a bidirectional inverter includes an input having a grid neutral conductor connection and a grid phase conductor connection for connection to the grid. The changeover device further includes a first output having an inverter neutral conductor connection and an inverter phase conductor connection for connecting the bidirectional inverter, a second output having a load neutral conductor connection and a load phase conductor connection for connecting the load and a switching circuit, the actuator of which is connected to an actuator input of the changeover device. The switching circuit includes a first and a second normally closed contact and a normally open contact that are connected in an interconnection to the grid phase conductor connection, the inverter phase conductor connection, and the load phase conductor connection. An associated method is also disclosed.

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