SYNCHRONOUS COMPENSATOR PLANT
    22.
    发明申请
    SYNCHRONOUS COMPENSATOR PLANT 审中-公开
    同步补偿厂

    公开(公告)号:WO1997045922A1

    公开(公告)日:1997-12-04

    申请号:PCT/SE1997000884

    申请日:1997-05-27

    Abstract: The magnetic circuit of synchronous compensator plant is included in an electric machine which is directly connected to a high supply voltage of 20-800 kV, preferably higher than 36 kV. The electric machine is provided with solid insulation and its winding(s) is/are built up of a cable (6) intended for high voltage comprising one or more current-carrying conductors (31) with a number of strands (36) surrounded by at least one outer and one inner semiconducting layer (34, 32) and intermediate insulating layers (33). The outer semiconducting layer (34) is at earth potential. The phases of the winding are Y-connected, and the Y-point may be insulated and protected from over-voltage by means of surge arresters, or else the Y-point is earthed via a suppression filter. A procedure is used in the manufacture of a synchronous compensator for such plant, in which the cable used is threaded into the openings in the core for the magnetic circuit of the synchronous compensator.

    Abstract translation: 同步补偿装置的磁路包括在直接连接到20-800kV,优选高于36kV的高电源电压的电机中。 电机具有固体绝缘,其绕组由用于高电压的电缆(6)构成,其包括一个或多个载流导体(31),多个线束(36)被 至少一个外部和一个内部半导体层(34,32)和中间绝缘层(33)。 外部半导体层(34)处于地电位。 绕组的相位是Y形连接的,并且Y点可以通过避雷器进行绝缘和保护以免过电压,或者Y点通过抑制滤波器接地。 制造用于这种设备的同步补偿器的过程被使用,其中使用的电缆被螺纹连接到用于同步补偿器的磁路的磁芯中的开口中。

    IMPROVED CONTROL OF A POWER TRANSMISSION SYSTEM
    25.
    发明申请
    IMPROVED CONTROL OF A POWER TRANSMISSION SYSTEM 审中-公开
    改进电力传输系统的控制

    公开(公告)号:WO2010142340A1

    公开(公告)日:2010-12-16

    申请号:PCT/EP2009/057248

    申请日:2009-06-11

    CPC classification number: H02J3/24

    Abstract: The invention provides improved control of a power transmission system having a first group of measurement units (10, 12, 14) in a first geographical area (A_1) providing a first set of phasors and a second group of measurement units (16, 18) in a second geographical area (A_2) providing a second set of phasors, where the phasors in the sets are generated at the same instant in time. In this system the power control device (32) includes a phasor aligning unit (30) that time aligns the first and second sets of phasors and a control unit (33) that compares each set of phasors with a corresponding phasor number threshold, determines that a first control condition is fulfilled if each phasor number threshold has been exceeded and enables the provision of a common signal if the first control condition is fulfilled. The common signal is based on the obtained phasors in the first and second sets.

    Abstract translation: 本发明提供了在提供第一组相量的第一地理区域(A_1)中具有第一组测量单元(10,12,14)和第二组测量单元(16,18)的电力传输系统的改进的控制, 在第二地理区域(A_2)中提供第二组相量,其中集合中的相量在相同时刻产生。 在该系统中,功率控制装置(32)包括时间对准第一和第二组相量的相量对准单元(30)和将每组相量与相应的相量数阈值进行比较的控制单元(33),确定 如果已经超过每个相量数阈值,则满足第一控制条件,并且如果满足第一控制条件则能够提供公共信号。 公共信号基于第一和第二组中获得的相量。

    DETERMINATION AND USE OF POWER SYSTEM SENSITIVITIES FOR POWER FLOW CONTROL
    26.
    发明申请
    DETERMINATION AND USE OF POWER SYSTEM SENSITIVITIES FOR POWER FLOW CONTROL 审中-公开
    电力系统敏感性的动力流量控制的确定和使用

    公开(公告)号:WO2008040713A1

    公开(公告)日:2008-04-10

    申请号:PCT/EP2007/060412

    申请日:2007-10-02

    CPC classification number: H02J3/24 H02J3/005 Y02E60/728 Y04S10/265

    Abstract: The present invention is concerned with the computation of power system sensitivities from power flow parameters and control parameters of a Power Flow Control Device (PFC). To this end, control parameter variations are applied to or generated by a PFC (20), and comprise variations in a control input u, a control effort e (injected series voltage, inserted series reactance), or a control effect q (power flow, active power transfer, phase-shift, current). A power flow response measuring unit (40) measures a variation of a power flow response such as current, active or apparent power, in a way sufficiently synchronized with the control parameter variation to allow establishing an unambiguous causal relationship or correspondence in the form of a power system sensitivity. The latter may be on-line adapted to continuously reflect an updated aspect of the power system behaviour, and thus enable an improved, fast and reliable power flow control in power systems comprising a meshed power network with two parallel flow paths or corridors connecting two areas or sub-systems.

    Abstract translation: 本发明涉及从功率流量参数和功率流量控制装置(PFC)的控制参数的功率系统灵敏度的计算。 为此,控制参数变化应用于PFC(20)或由PFC(20)产生,并且包括控制输入u,控制力e(注入的串联电压,插入的串联电抗)或控制效应q(功率流) ,有功功率传输,相移,电流)。 功率流响应测量单元(40)以与控制参数变化充分同步的方式测量功率流响应(例如电流,有功或视在功率)的变化,以允许建立明确的因果关系或以 电力系统灵敏度。 后者可以在线适应以连续反映电力系统行为的更新方面,并且因此能够在电力系统中实现改进的,快速和可靠的功率流控制,其包括具有两个平行流动路径的网状电力网络或连接两个区域的走廊 或子系统。

    A DC GRID AND A METHOD OF LIMITING THE EFFECTS OF A FAULT IN A DC GRID
    30.
    发明申请
    A DC GRID AND A METHOD OF LIMITING THE EFFECTS OF A FAULT IN A DC GRID 审中-公开
    直流电网和限制直流电网故障影响的方法

    公开(公告)号:WO2012123015A1

    公开(公告)日:2012-09-20

    申请号:PCT/EP2011/053746

    申请日:2011-03-11

    CPC classification number: H02H9/02 H02H7/268

    Abstract: A DC grid (100) comprising a plurality of AC/DC converters (105) which are interconnected via DC lines (115) is provided, wherein, in order to limit the effects of a fault in the DC grid, the DC grid is divided into at least two zones (200) by means of at least one current limiter (205) in a manner so that a current limiter is connected in each of the DC line(s) (115z) by which two zones are interconnected. A method of limiting the effects of a fault in a DC grid by dividing the DC grid into at least two zones is also provided.

    Abstract translation: 提供了包括通过DC线路(115)互连的多个AC / DC转换器(105)的DC电网(100),其中为了限制DC电网中的故障的影响,DC电网被分割 通过至少一个限流器(205)以至少两个区域(200)的方式进入至少两个区域(200),使得限流器连接在两个区域相互连接的每条直流线路(115z)中。 还提供了通过将DC网格划分成至少两个区域来限制DC网格中的故障的影响的方法。

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