METHOD FOR PRODUCING A CONDUCTOR BAR
    31.
    发明申请
    METHOD FOR PRODUCING A CONDUCTOR BAR 审中-公开
    制造导线棒的方法

    公开(公告)号:WO2015154929A2

    公开(公告)日:2015-10-15

    申请号:PCT/EP2015054940

    申请日:2015-03-10

    CPC classification number: H02K15/12 H02K3/30 H02K3/345 H02K15/0421 H02K15/105

    Abstract: The present disclosure relates to the technical field of conductor bars, especially for assembly into electric machines. It is an object of the invention to provide an alternative method for fabricating a conductor bar with a vacuum pressure resin-rich process. Described is a method for producing a conductor bar comprising the steps of packing a conductive bar with a B-stage resin-rich main wall insulation into a layer of release tape, a layer of breather/ bleeder and thereon a layer of synthetic material which is forming a hermetical sealing around the pre-impregnated insulated conductive bar, placing the pre-impregnated insulated conductive bar with the layers described above into a vessel where the volume inside the synthetic layer is connected to a vacuum pump outside of the vessel and is evacuated while an overpressure is created inside the vessel with a heated compression gas causing a compacting and thermal curing of the resin-rich insulation around the conductive bar.

    Abstract translation: 本公开涉及导线棒的技术领域,特别是用于组装到电机中。 本发明的目的是提供一种用真空压力树脂富集工艺制造导体棒的替代方法。 描述了一种用于制造导体棒的方法,包括以下步骤:将具有B阶富树脂的主壁绝缘体的导电棒填充到剥离带层中,一层呼吸器/泄放器和一层合成材料层 在预浸渍的绝缘导电棒周围形成密封,将具有上述层的预浸渍绝缘导电棒放置在容器内,其中合成层内的体积连接到容器外部的真空泵并抽空,同时 在容器内产生超压,其中加热的压缩气体导致导电棒周围富含树脂的绝缘体的压实和热固化。

    VOLTAGE SOURCE CONVERTER AND CONTROL THEREOF
    32.
    发明申请
    VOLTAGE SOURCE CONVERTER AND CONTROL THEREOF 审中-公开
    电压源转换器及其控制

    公开(公告)号:WO2015144644A1

    公开(公告)日:2015-10-01

    申请号:PCT/EP2015/056139

    申请日:2015-03-23

    Abstract: This application describes a voltage source converter (300) of the controlled transition bridge type, having three phase limbs, each phase limb having a high side director switch (S w1 , S w3 , S w5 ) and a low side director switch (S W4 , S W6 , S W2 ) connecting a respective DC terminal (DC+, DC-) to an AC node (102a-c) for that phase limb. Chain- link circuits (101a-c) for each phase limb comprise a plurality of series connect cells (103), each cell having an energy storage element (105) that can be selectively connected in series or bypassed. The chain-link circuits are operated in a voltage mode to provide a defined voltage transition at the AC node during a transition between one director switch being turned off and the other directors switch being turned on. In embodiments of the invention the chain-link circuits (101a-c) are connected to a common node such that, in use, a current can flow from one phase limb to another via the respective chain-link circuits. A converter controller (900) operates a chain-link circuit of a phase limb in a current mode to provide a defined chain-link current for at least part of the time when that phase limb is not in a transition state. The defined current can allow correct circulation of the DC current and/or provide capacitor balancing of the capacitors of a chain-link circuit. Additional chain-link circuits (301, 302) are provided between the DC terminals and the common node to provide a DC current in a converter state where all the high side or low side director switches are off at the same time.

    Abstract translation: 该应用描述了具有三相肢的受控过渡桥型的电压源转换器(300),每个相位臂具有高侧控制开关(Sw1,Sw3,Sw5)和低侧控制开关(SW4,SW6,SW2) )将相应的直流端子(DC +,DC-)连接到用于该相位的AC节点(102a-c)。 每个相位臂的链式链路电路(101a-c)包括多个串联连接单元(103),每个单元具有能够选择性地串联或旁路连接的能量存储元件(105)。 链式电路在电压模式下工作,以在一个导向开关断开且另一导向开关导通之间的过渡期间在AC节点处提供限定的电压转换。 在本发明的实施例中,链式链路电路(101a-c)连接到公共节点,使得在使用中,电流可以经由相应的链式链路从一个相位流到另一个相位。 A转换器控制器(900)以当前模式操作相位支路的链式链路电路,以在该相位不处于转换状态的至少一部分时间提供定义的链式链路电流。 定义的电流可以允许DC电流的正确循环和/或提供链路电路的电容器的电容器平衡。 在DC端子和公共节点之间提供附加的链式链路电路(301,302),以在转换器状态下提供直流电流,其中所有的高侧或低端导向开关同时断开。

    VOLTAGE SOURCE CONVERTER
    33.
    发明申请
    VOLTAGE SOURCE CONVERTER 审中-公开
    电压源转换器

    公开(公告)号:WO2015132310A1

    公开(公告)日:2015-09-11

    申请号:PCT/EP2015/054546

    申请日:2015-03-04

    Abstract: A voltage source converter (30) comprises first and second DC terminals (32,34) for connection to a DC network (58). The voltage source converter (30) further includes at least one limb connected between the first and second DC terminals (32,34). The or each limb includes: a phase element (36) including two parallel-connected sets of series-connected switching elements (40) connected in an H-bridge to define first and second diagonal switching pairs, a respective junction between each set of series-connected switching elements (36) defining an AC terminal (40) for connection to an AC network (50); and a sub-converter (38,39) configured to be controllable to act as a voltage waveform synthesiser; wherein the voltage source converter (30) further includes a controller (60) to operate the sub-converter (38,39) to selectively synthesise a driving commutation voltage to modify a DC side current at a DC side of the H-bridge so as to minimise any differences in magnitude and direction between the DC side current and an AC side current at an AC side of the H-bridge and thereby carry out commutation of current from one of the first and second diagonal switching pairs to the other of the first and second diagonal switching pairs.

    Abstract translation: 电压源转换器(30)包括用于连接到DC网络(58)的第一和第二DC终端(32,34)。 电压源转换器(30)还包括连接在第一和第二DC端子(32,34)之间的至少一个支路。 所述肢体或每个肢体包括:相位元件(36),包括连接在H桥中的两个并联的串联的开关元件组,用于限定第一和第二对角线开关对,每组串联 连接的开关元件(36)限定用于连接到AC网络(50)的AC端子(40); 以及子转换器(38,39),被配置为可控制以用作电压波形合成器; 其中所述电压源转换器(30)还包括用于操作所述子转换器(38,39)以选择性地合成驱动换向电压以修改所述H桥的DC侧的DC侧电流的控制器(60),以便 以最小化在H桥的AC侧的DC侧电流和AC侧电流之间的大小和方向上的差异,从而执行电流从第一和第二对角线切换对之一到第一 和第二对角线开关对。

    BALANCING AND/OR DISCHARGE RESISTOR ARRANGEMENTS
    34.
    发明申请
    BALANCING AND/OR DISCHARGE RESISTOR ARRANGEMENTS 审中-公开
    平衡和/或放电电阻安排

    公开(公告)号:WO2015128377A1

    公开(公告)日:2015-09-03

    申请号:PCT/EP2015/053934

    申请日:2015-02-25

    Abstract: Circuits comprising at least one energy storage device (120), a resistor (206) and switch (204) arranged in series with the resistor (206) are described. The energy storage device is arranged in parallel with the series connection of the switch (204) and the resistor (206), and the switch (204) is arranged to selectively switch the resistor (206) into a parallel connection to the energy storage device (120). In some examples, the switch (204) comprises a series connection of semiconductor switching elements (202). In some examples, the circuit may comprise a sub-module (200) for use in a multilevel modular converter (300).

    Abstract translation: 描述了包括与电阻器(206)串联布置的至少一个能量存储装置(120),电阻器(206)和开关(204)的电路。 能量存储装置与开关(204)和电阻器(206)的串联连接并联布置,并且开关(204)被布置成选择性地将电阻器(206)切换到与能量存储装置 (120)。 在一些示例中,开关(204)包括半导体开关元件(202)的串联连接。 在一些示例中,电路可以包括用于多电平模块转换器(300)的子模块(200)。

    MODULAR MULTILEVEL CONVERTER LEG WITH FLAT-TOP PWM MODULATION, CONVERTER AND HYBRID CONVERTER TOPOLOGIES
    36.
    发明申请
    MODULAR MULTILEVEL CONVERTER LEG WITH FLAT-TOP PWM MODULATION, CONVERTER AND HYBRID CONVERTER TOPOLOGIES 审中-公开
    具有平面PWM调制,转换器和混合转换器拓扑的模块化多电平转换器

    公开(公告)号:WO2015097048A1

    公开(公告)日:2015-07-02

    申请号:PCT/EP2014/078339

    申请日:2014-12-17

    Abstract: A voltage source converter (30), for interconnecting first and second electrical networks (44, 46), comprising: first and second terminals (32, 34) for connection to the first electrical network (44); and a primary converter limb (36a) extending between the first and second terminals (32, 34), the primary converter limb (36a) including first and second primary limb portions (38, 40) separated by a third terminal (42), the third terminal (42) being connectable to the second electrical network (46), each primary limb portion (38, 40) including at least one switching element (50) and/or a first chain-link converter, each primary limb portion (38, 40) being operable to be switched into and out of circuit between the third terminal (42) and a respective one of the first and second terminals (32, 34), each primary limb portion (38, 40) being operable to transfer power between the third terminal (42) and a respective one of the first and second terminals (32, 34); at least one second chain-link converter (58) connected to the third terminal (42), the or each chain-link converter (58) comprising a plurality of chain-link modules (60), each of the plurality of chain-link modules (60) being operable to selectively provide a voltage source, wherein the or each chain-link converter (58) includes a control unit configured to selectively operate the plurality of chain-link modules (60) to generate a discontinuous pulse width modulation voltage waveform; and a controller (62) configured to selectively operate the or each chain-link converter (58) to control the configuration of a discontinuous pulse width modulation voltage waveform at the third terminal (42), the controller (62) including the or each control unit, the controller (62) being configured to selectively control switching of each primary limb portion (38, 40) into circuit between the third terminal (42) and a respective one of the first and second terminals (32, 34) during a respective unmodulated period of the discontinuous pulse width modulation voltage waveform, the controller (62) being configured to selectively coordinate operation of the primary limb portions (38, 40) and the or each second chain-link converter (58) to control the configuration of the discontinuous pulse width modulation voltage waveform at the third terminal (42).

    Abstract translation: 一种用于互连第一和第二电网(44,46)的电压源转换器(30),包括:用于连接到第一电网(44)的第一和第二端子(32,34)。 以及在所述第一和第二端子(32,34)之间延伸的初级转换器分支(36a),所述初级转换器分支(36a)包括由第三端子(42)分开的第一和第二主要分支部分(38,40) 第三端子(42)可连接到第二电网(46),每个主要肢体部分(38,40)包括至少一个开关元件(50)和/或第一链条转换器,每个主要肢体部分(38) ,40)可操作以在所述第三端子(42)与所述第一和第二端子(32,34)中的相应一个之间切换和断开电路,每个初级臂部分(38,40)可操作以传递功率 在第三端子(42)与第一和第二端子(32,34)中的相应一个之间。 连接到第三终端(42)的至少一个第二链式链接转换器(58),所述链路转换器(58)包括多个链节模块(60),多个链节模块 模块(60)可操作以选择性地提供电压源,其中所述或每个链节转换器(58)包括控制单元,所述控制单元被配置为选择性地操作所述多个链式链接模块(60)以产生不连续的脉冲宽度调制电压 波形; 以及控制器(62),其被配置为选择性地操作所述链路转换器(58)以控制所述第三终端(42)处的不连续脉宽调制电压波形的配置,所述控制器(62)包括所述或每个控制 单元,所述控制器(62)被配置为在相应的所述第一和第二端子(32,34)中选择性地控制每个所述主要肢体部分(38,40)到所述第三端子(42)与所述第一和第二端子(32,34)中的相应一个之间的电路的切换 所述控制器(62)被配置为选择性地协调所述主要肢体部分(38,40)和所述或每个第二链式转换器(58)的操作,以控制所述不连续脉宽调制电压波形的结构, 第三端子处的不连续脉宽调制电压波形(42)。

    COMBINED CYCLE SYSTEM
    37.
    发明申请
    COMBINED CYCLE SYSTEM 审中-公开
    组合循环系统

    公开(公告)号:WO2015082364A1

    公开(公告)日:2015-06-11

    申请号:PCT/EP2014/076025

    申请日:2014-11-28

    Abstract: The invention relates to a combined cycle system, which comprises a gas turbine, a steam turbine and a heat recovery steam generator, wherein the steam discharged from the water separation unit is routed through a high pressure outlet line to the set of super-heaters and discharged from the set of super-heaters through a main outlet line of the heat recovery steam generator to be introduced into the steam turbine, an attemperating line is connected between the high pressure outlet line and the main outlet line of the heat recovery steam generator to introduce a portion of steam that is discharged from the water separation unit into the steam discharged from the set of super-heaters, and that a control valve is disposed in the attemperating line. With the solution of the present invention, pressure difference across control valve for steam temperature remains low in low load or high load application of the combined cycle system.

    Abstract translation: 本发明涉及一种联合循环系统,其包括燃气轮机,蒸汽涡轮机和热回收蒸汽发生器,其中从水分离单元排出的蒸汽通过高压出口管线路由到一组超级加热器, 通过热回收蒸汽发生器的主出口管路从超声波发生器排出,引入蒸汽轮机,在热回收蒸汽发生器的高压出口管路和主出口管路之间连接调温管线, 将从水分离单元排出的蒸汽的一部分引入从一组超级加热器排出的蒸汽中,并且在调温管路中设置控制阀。 通过本发明的解决方案,用于蒸汽温度的控制阀之间的压力差在组合循环系统的低负载或高负载应用中保持较低。

    POWER TRANSFORMERS USING OPTICAL CURRENT SENSORS
    39.
    发明申请
    POWER TRANSFORMERS USING OPTICAL CURRENT SENSORS 审中-公开
    使用光电流传感器的电力变压器

    公开(公告)号:WO2015073510A1

    公开(公告)日:2015-05-21

    申请号:PCT/US2014/065174

    申请日:2014-11-12

    CPC classification number: G01R15/24 G01R15/246 G01R31/027 G01R31/04

    Abstract: Systems and methods according to these exemplary embodiments provide for methods and systems related to optical current sensors used to monitor standby power transformers, specifically fiber optical current and voltage sensors and, more particularly, to applications involving filters for use in such sensors, such as frequency tracking comb filters. According to one embodiment, a method for monitoring a connection condition of a stand by power transformer includes the steps of measuring a current flowing through a high voltage side of the standby power transformer using at least one optical current sensor disposed proximate to a current flow path of the high voltage side, using a comb filter to filter the measured current, determining whether the filtered, measured current is less than a predetermined threshold value; and generating an alarm indication that the high voltage side of the standby power transformer is unconnected.

    Abstract translation: 根据这些示例性实施例的系统和方法提供了与用于监视备用电力变压器,特别是光纤电流和电压传感器的光电流传感器相关的方法和系统,更具体地,涉及涉及用于这种传感器的滤波器的应用,例如频率 跟踪梳状滤波器 根据一个实施例,一种用于监测电力变压器的支架的连接状态的方法包括以下步骤:使用至少一个光电流传感器来测量流过待机电力变压器的高压侧的电流,该光电流传感器设置在电流流路 使用梳状滤波器对所测量的电流进行滤波,确定滤波后的测量电流是否小于预定阈值; 并产生备用电力变压器的高压侧未连接的报警指示。

    AERATING SYSTEM FOR HYDRAULIC TURBINE
    40.
    发明申请
    AERATING SYSTEM FOR HYDRAULIC TURBINE 审中-公开
    液压涡轮增压系统

    公开(公告)号:WO2015071094A1

    公开(公告)日:2015-05-21

    申请号:PCT/EP2014/073138

    申请日:2014-10-28

    Abstract: Aerating system (100) for the runner (10) of a hydraulic turbine, the runner (10) comprising a plurality of blades (2), such that inter-blade canals (11) are configured between each pair of blades (2) for the admission of air in the water flow circulating through the hydraulic turbine, such that the aerating system (100) comprises at least one hydrofoil (12) located in the inter-blade canal (11) of the runner (10) contacting the pair of blades (2) configuring the inter-blade canal (11) where the hydrofoil (12) is located, such that the hydrofoil (12) has a non-axis symmetrical profile, and such that at least one of the blades (2) in contact with the hydrofoil (12) comprises an aerating canal (20) delivering air to the hydrofoil (12).

    Abstract translation: 用于水轮机的转轮(10)的充气系统(100),所述转轮(10)包括多个叶片(2),使得在每对叶片(2)之间配置刀片间通道(11),用于 允许在水力涡轮机中循环的水流中的空气进入,使得充气系统(100)包括至少一个位于流道(10)的叶片间通道(11)中的水翼(12),所述水翼(12)与所述一对 叶片(2)构造水翼(12)所在的叶片间叶片(11),使得水翼(12)具有非轴对称轮廓,并且使得叶片(2)中的至少一个在 与水翼(12)的接触包括将空气输送到水翼(12)的通气道(20)。

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