VIRTUAL POWER GRID
    1.
    发明申请

    公开(公告)号:US20220352749A1

    公开(公告)日:2022-11-03

    申请号:US17864274

    申请日:2022-07-13

    Abstract: Distributed grid intelligence can enable a virtual power grid. Multiple consumer nodes can have local power sources, and be coupled to a same point of common coupling (PCC). The consumer nodes can be controlled by distributed control nodes at the consumer nodes. The control nodes control the distribution of power from the local power sources based on local power demand of each respective consumer node, and also based on distribution of power from the other respective control node. Thus, consumer nodes can share power generated locally, but operate independently without the need for central management or a central power plant.

    Hierarchical and distributed power grid control

    公开(公告)号:US11063431B2

    公开(公告)日:2021-07-13

    申请号:US14791429

    申请日:2015-07-04

    Abstract: A control node enables distributed grid control. The control node monitors power generation and power demand at a point of common coupling (PCC) between a utility power grid and all devices downstream from the PCC. The control node can have one or more consumer nodes, which can be or include customer premises, and one or more energy sources connected downstream. The control node monitors and controls the interface via the PCC from the same side of the PCC as the power generation and power demand. The control can include adjusting the interface between the control node and the central grid management via the PCC to maintain compliance with grid regulations at the PCC.

    Time deviation and inadvertent interchange correction for automatic
generation control
    9.
    发明授权
    Time deviation and inadvertent interchange correction for automatic generation control 失效
    时间偏差和无意间的交换校正,用于自动发电控制

    公开(公告)号:US4419733A

    公开(公告)日:1983-12-06

    申请号:US255610

    申请日:1981-04-20

    Inventor: Charles W. Ross

    CPC classification number: G06G7/635 Y10T307/576

    Abstract: A method for modifying an area control error signal for controlling the generation in each area of a multiple-area interconnected electric power system using net-interchange tie-line bias control where the area control error is calculated in accordance with the equationACE=.DELTA.P.sub.t1 -10B.times..DELTA.fwhere .DELTA.P.sub.t1 is the deviation of the measured net interchange from its scheduled value, .DELTA.f is the deviation of a system frequency from its set value, and B is the frequency bias of the area. The modification involves the integration of .DELTA.P.sub.t1 to produce a signal representing a measured value of the inadvertent interchange II'.sub.t1, and integration of .DELTA.f to produce a signal representing the time deviation TD'. The time deviation is multiplied by the value 10Bf.sub.o /3600 times 1/T where B is the area frequency bias and 1/T is the control weighting factor. The product of the multiplication is subtracted from the signal II'.sub.t1 and added to the area control error ACE to provide an error signal for correcting for inadvertent interchange and time deviation as well as for load changes. The integration of .DELTA.P.sub.t1 and .DELTA.f are periodically updated from accurate measurements of inadvertent interchange and time deviation.

    Abstract translation: 一种用于修改区域控制误差信号的方法,用于使用网络交换连线偏置控制来控制多区域互连电力系统的每个区域中的生成,其中根据等式ACE = DELTA Pt1计算面积控制误差 -10Bx DELTA f其中DELTA Pt1是测量的净互换与其调度值的偏差,DELTA f是系统频率与其设定值的偏差,B是该区域的频率偏差。 修改涉及DELTA Pt1的积分以产生表示无意间交换II't1的测量值的信号,以及DELTA f的积分以产生表示时间偏差TD'的信号。 时间偏差乘以10Bfo / 3600次1 / T的值,其中B是区域频率偏差,1 / T是控制权重因子。 乘法的乘积从信号II't1中减去,并加到区域控制误差ACE中,以提供错误信号,用于纠正意外交换和时间偏差以及负载变化。 DELTA Pt1和DELTA f的集成由不经意的交换和时间偏差的精确测量定期更新。

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