Unified power flow controller utilizing energy saving devices at a point of power consumption

    公开(公告)号:US10326272B2

    公开(公告)日:2019-06-18

    申请号:US15361039

    申请日:2016-11-24

    Abstract: A system and method are provided for regulating voltage received from an electric utility grid. A unified power flow controller is provided at a point of power consumption and includes a terminal electrically coupled to a power source, which receives a grid alternating current and a grid alternating voltage from the electric utility grid. A power converter is electrically coupled to the terminal and includes an active rectifier that converts substantially all of the grid alternating current to a direct current and an inverter that converts the direct current to a load alternating current and a load alternating voltage, the load alternating voltage being less than the grid alternating voltage. A transformer is provided having first terminals electrically coupled to the power source and second terminals electrically coupled to an output of the inverter. The transformer injects the load alternating voltage in series with the grid alternating voltage.

    Meter/voltage regulator with volt-ampere reactive control positioned at customer site

    公开(公告)号:US10128768B2

    公开(公告)日:2018-11-13

    申请号:US14623796

    申请日:2015-02-17

    Abstract: A method and system are provided for sourcing and sinking reactive power to an electric grid. The control system includes a terminal electrically coupled to a power source that originates from an electric utility grid. The terminal receives a grid alternating current having a real power component and a reactive power component. A power converter is electrically coupled to the terminal, the power converter includes an active rectifier that converts substantially all of the grid alternating current to a direct current and an energy storage device that stores energy supplied by the direct current. The active rectifier sources the reactive power component and the stored energy through the terminal to the electric utility grid. The power converter further includes an inverter that converts the direct current to a load alternating current having at least one of a load real power component and a load reactive power component.

    METER/VOLTAGE REGULATOR WITH VOLT-AMPERE REACTIVE CONTROL POSITIONED AT CUSTOMER SITE
    3.
    发明申请
    METER/VOLTAGE REGULATOR WITH VOLT-AMPERE REACTIVE CONTROL POSITIONED AT CUSTOMER SITE 审中-公开
    带有电压反应控制的仪表/电压调节器定位在客户站点

    公开(公告)号:US20150236510A1

    公开(公告)日:2015-08-20

    申请号:US14623796

    申请日:2015-02-17

    Abstract: A method and system are provided for sourcing and sinking reactive power to an electric grid. The control system includes a terminal electrically coupled to a power source that originates from an electric utility grid. The terminal receives a grid alternating current having a real power component and a reactive power component. A power converter is electrically coupled to the terminal, the power converter includes an active rectifier that converts substantially all of the grid alternating current to a direct current and an energy storage device that stores energy supplied by the direct current. The active rectifier sources the reactive power component and the stored energy through the terminal to the electric utility grid. The power converter further includes an inverter that converts the direct current to a load alternating current having at least one of a load real power component and a load reactive power component.

    Abstract translation: 提供了一种方法和系统,用于向无功电力供电和吸收无功功率。 控制系统包括电连接到源自电力公用电网的电源的端子。 终端接收具有实际功率分量和无功功率分量的电网交流电。 功率转换器电耦合到端子,功率转换器包括有源整流器,其将基本上将所有的电网交流电转换成直流电,而储能装置存储由直流供电的能量。 有源整流器将无功功率分量和存储的能量通过端子馈送到电力公用电网。 功率转换器还包括将直流电转换成具有负载有功功率分量和负载无功功率分量中的至少一个的负载交流电的逆变器。

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