Method and system for monitoring the condition of generator end windings
    1.
    发明授权
    Method and system for monitoring the condition of generator end windings 有权
    用于监测发电机端绕组状况的方法和系统

    公开(公告)号:US08076909B2

    公开(公告)日:2011-12-13

    申请号:US12209333

    申请日:2008-09-12

    CPC classification number: H02K11/25 H02K11/20

    Abstract: A method and system for monitoring the operating conditions of an electric generator. The system includes a triad sensor array formed within a predetermined section of a fiber optic conductor. The triad sensor array is formed of a group of sensors including a first sensor including a Bragg grating for producing a first signal representative of strain in a stator bar of the generator, a second sensor including a Bragg grating for producing a second signal representative of temperature in the stator bar, and a third sensor including a Bragg grating for producing a third signal representative of vibration amplitude in the stator bar.

    Abstract translation: 一种用于监测发电机运行状况的方法和系统。 该系统包括形成在光纤导体的预定部分内的三元组传感器阵列。 三元组传感器阵列由一组传感器组成,包括第一传感器,其包括布拉格光栅,用于产生表示发生器的定子条中的应变的第一信号;第二传感器,包括用于产生代表温度的第二信号的布拉格光栅 以及包括布拉格光栅的第三传感器,用于产生代表定子条中振动振幅的第三信号。

    Method and System for Monitoring the Condition of Generator End Windings
    2.
    发明申请
    Method and System for Monitoring the Condition of Generator End Windings 有权
    发电机端绕组状况监测方法及系统

    公开(公告)号:US20100066315A1

    公开(公告)日:2010-03-18

    申请号:US12209333

    申请日:2008-09-12

    CPC classification number: H02K11/25 H02K11/20

    Abstract: A method and system for monitoring the operating conditions of an electric generator. The system includes a triad sensor array formed within a predetermined section of a fiber optic conductor. The triad sensor array is formed of a group of sensors including a first sensor including a Bragg grating for producing a first signal representative of strain in a stator bar of the generator, a second sensor including a Bragg grating for producing a second signal representative of temperature in the stator bar, and a third sensor including a Bragg grating for producing a third signal representative of vibration amplitude in the stator bar.

    Abstract translation: 一种用于监测发电机运行状况的方法和系统。 该系统包括形成在光纤导体的预定部分内的三元组传感器阵列。 三元组传感器阵列由一组传感器组成,包括第一传感器,其包括布拉格光栅,用于产生表示发生器的定子条中的应变的第一信号;第二传感器,包括用于产生代表温度的第二信号的布拉格光栅 以及包括布拉格光栅的第三传感器,用于产生代表定子条中振动振幅的第三信号。

    Cooling arrangement for the rotor of an electric machine
    3.
    发明授权
    Cooling arrangement for the rotor of an electric machine 失效
    电机转子冷却装置

    公开(公告)号:US4037124A

    公开(公告)日:1977-07-19

    申请号:US605536

    申请日:1975-08-18

    CPC classification number: H02K55/04 H02K3/24 Y02E40/625

    Abstract: A cooling arrangement for the rotor of an electric machine with longitudinal slots having disposed therein exciter winding sections which must be cooled to a low temperature, the arrangement having a feed and discharge line, in which a multiplicity of individual cooling canals running in the circumferential direction and a multiplicity of individual radial coolant feed lines and/or discharge lines are provided for each winding section over its axial length so that the cooling arrangement can be optimized with regard to the thermodynamic pressure losses of the coolant, its temperature rise and the heat transfer conditions while at the same time achieving a favorable space factor of the conductor material within the slots.

    Abstract translation: 具有纵向狭槽的电机的转子的冷却装置,其中设置有必须冷却到低温的激振器绕组部分,该装置具有进给和排出管线,其中多个单独的冷却通道沿圆周方向 并且在其轴向长度上为每个卷绕部分提供多个单独的径向冷却剂供给管线和/或排出管线,使得冷却装置可以针对冷却剂的热力学压力损失,其温度升高和热传递 同时在槽内实现导体材料的有利空间因子。

    Device for coupling two shafts of a rotating machine for heat transfer
and sealing
    4.
    发明授权
    Device for coupling two shafts of a rotating machine for heat transfer and sealing 失效
    用于连接旋转机器的两个轴用于传热和密封的装置

    公开(公告)号:US4577871A

    公开(公告)日:1986-03-25

    申请号:US706045

    申请日:1985-02-27

    CPC classification number: H02K55/04 Y02E40/625 Y10S277/912 Y10T403/31

    Abstract: A device for coupling two shafts of a rotating machine for permitting simultaneously a thermal dilatation and a sealing of the shafts with respect to each other, in combination with the shafts, includes inner and outer normally synchronously rotating mutually concentric shafts defining a ring gap therebetween, at least the outer shaft being hollow defining a space between the shafts, an expansion compensator with a given maximal permissible twist disposed between the inner periphery of the outer shaft with one end and the outer periphery of the inner shaft with its other end sealing the space between the shafts and permitting relative axial, radial and tangential motion between the shafts, a holding ring rotatably and sealingly supported on the inner shaft connected sealingly to said other end of the expansion compensator thereby permitting a twisting movement thereof with respect to the inner shaft, and at least one driver element attached to the outer shaft engaging the inner shaft via the holding ring with tangential play (S.sub.2) between the shafts being smaller than the given maximal permissible twist, the driver element mechanically connecting the holding ring, and the other end of said expansion compensator to the outer shaft when twists of the expansion compensator exceed the tangential play (S.sub.2).

    Abstract translation: 一种用于联接旋转机器的两个轴的装置,用于同时使轴彼此相对于热轴膨胀和密封,与轴组合包括内外正常同步旋转的相互同心的轴,在其间限定了环形间隙, 至少所述外轴是中空的,在所述轴之间形成空间,膨胀补偿器具有设置在所述外轴的内周与所述内轴的外周之间的给定的最大允许扭转,其另一端密封所述空间 在所述轴之间并且允许所述轴之间的相对轴向,径向和切向运动,保持环可旋转并密封地支撑在所述内轴上,所述内轴密封地连接到所述膨胀补偿器的所述另一端,从而允许其相对于所述内轴的扭转运动, 并且附接到外轴的至少一个驱动元件接合内轴v 在所述轴之间的切向游隙(S2)小于给定的最大允许扭矩的保持环上,当膨胀补偿器的扭曲超过时,驱动元件将保持环机械连接到膨胀补偿器的另一端到外轴 切向戏(S2)。

    Coolant replenishing system for superconducting field windings
    5.
    发明授权
    Coolant replenishing system for superconducting field windings 失效
    超导励磁绕组冷却液补充系统

    公开(公告)号:US4365479A

    公开(公告)日:1982-12-28

    申请号:US203967

    申请日:1980-11-04

    CPC classification number: H02K55/04 H02K9/193 H02K9/20 Y02E40/625 Y10S505/888

    Abstract: A coolant replenishing system for cooling the superconducting field winding of a machine, illustratively a turbo-generator. The machine is provided with a rotating antechamber in which is disposed a coolant in liquid and gaseous phases. Liquid coolant is delivered to the antechamber from a supply tank by a coolant supply line. The discharge opening of the coolant supply line in the antechamber is oriented away from the axis of rotation of the machine, and disposed at a predetermined radius with respect to the axis so that the input pressure of the coolant at the opening of the coolant feed line is in equilibrium with the pressure of the liquid coolant in the rotating antechamber.

    Abstract translation: 用于冷却机器的超导场绕组的冷却剂补充系统,例如涡轮发电机。 该机器设置有旋转前室,其中将冷却剂设置在液相和气相中。 液体冷却液通过冷却剂供应管线从供应罐输送到前厅。 前厅中的冷却剂供应管线的排放开口定向为远离机器的旋转轴线,并且相对于轴线以预定的半径设置,使得冷却剂在冷却剂供给线的开口处的输入压力 与旋转前厅中的液体冷却剂的压力平衡。

    Rotor containing a field winding cooled to a low temperature
    6.
    发明授权
    Rotor containing a field winding cooled to a low temperature 失效
    转子含有冷却至低温的励磁绕组

    公开(公告)号:US4063122A

    公开(公告)日:1977-12-13

    申请号:US566839

    申请日:1975-04-10

    CPC classification number: H02K55/04 Y02E40/625 Y10S505/878

    Abstract: An improved rotor for an electric machine, particularly for a synchronous machine, comprising a field winding cooled to a low temperature in which the rotor includes a concentric, hollow, cylindrical support body having internal slots on its inside for accommodating the field winding so that the winding can be placed in the slots in a simple manner and the windings retained more securely therein.

    Abstract translation: 一种用于电机,特别是用于同步电机的改进的转子,包括冷却至低温的励磁绕组,其中转子包括同心的,中空的圆柱形支撑体,其内部具有用于容纳励磁绕组的内部狭槽, 绕组可以以简单的方式放置在槽中,并且绕组更牢固地保持在其中。

    Crysosorption pump for the rotor of an electric machine having a
superconducting exciter winding
    7.
    发明授权
    Crysosorption pump for the rotor of an electric machine having a superconducting exciter winding 失效
    用于具有超导励磁机绕组的电机的转子的接收泵

    公开(公告)号:US4727724A

    公开(公告)日:1988-03-01

    申请号:US23137

    申请日:1987-03-09

    CPC classification number: H02K55/04 F04B37/08 Y02E40/625

    Abstract: A cryosorption pump for perpetuating a thermal insulating vacuum in the superconducting rotor of an electric machine, in particular, a turbogenerator, is constructed in a co-rotating transfer part of the rotor along the axis of rotation thereof. The rotor comprises a superconducting exciter winding part which is to be cooled by a cryogenic coolant, and to which winding part the coolant is introduced via at least one appropriate coolant supply line. The chambers of the rotor winding part to be evacuated are directly connected to the cryosorption pump in the co-rotating transfer part. Furthermore, the cryosorption pump is thermally connected within the co-rotating transfer part with the at least one coolant supply line.

    Abstract translation: 一种用于在电动机的超导转子,特别是涡轮发电机中实现绝热真空的冷冻吸附泵,沿转子的轴线构成转子的同向转动部分。 转子包括将由低温冷却剂冷却的超导激振器绕组部分,并且通过至少一个适当的冷却剂供应管线将冷却剂引入到该绕组部分。 要抽真空的转子绕组部分的腔室直接连接到共旋转传递部分中的冷冻吸收泵。 此外,冷冻吸收泵在同转旋转传送部分内与至少一个冷却剂供应管线热连接。

    Arrangement for deep cooling a field winding in the rotor of an electric
machine
    8.
    发明授权
    Arrangement for deep cooling a field winding in the rotor of an electric machine 失效
    用于深冷冷却电机转子中的励磁绕组的装置

    公开(公告)号:US4368397A

    公开(公告)日:1983-01-11

    申请号:US148829

    申请日:1980-05-12

    CPC classification number: H02K9/20 H02K55/04 Y02E40/625

    Abstract: An arrangement for cooling the field winding of an electric machine to be deep cooled is provided with a rotating mixing chamber containing vaporous and liquid coolant and with a centrifugal pump between areas of different temperatures to pump gaseous coolant out of the mixing chamber. The maximum flow cross section of the colder line part of the centrifugal pump is at the most half the size of the maximum flow cross section of the warmer line parts and/or at least the end piece of the colder line part is thermally coupled to colder parts of the rotor to prevent pump instabilities caused by coolant convection.

    Abstract translation: 用于冷却要冷却的电机的励磁绕组的装置设置有旋转的混合室,其包含蒸汽和液体冷却剂,并且在不同温度的区域之间具有离心泵以将气态冷却剂泵出混合室。 离心泵的较冷线路部分的最大流动横截面是加热线路部件的最大流动横截面的最大一半的尺寸,和/或至少冷线部分的端部部件热耦合到较冷的 转子的部分,以防止由冷却剂对流引起的泵不稳定。

    Cooling system for rotors of electric machines, especially for
turbo-generator rotors with a superconductive field winding
    9.
    发明授权
    Cooling system for rotors of electric machines, especially for turbo-generator rotors with a superconductive field winding 失效
    用于电机转子的冷却系统,特别适用于具有超导场绕组的涡轮发电机转子

    公开(公告)号:US4315172A

    公开(公告)日:1982-02-09

    申请号:US102647

    申请日:1979-12-12

    CPC classification number: H02K9/20 H02K55/04 Y02E40/625 Y10S505/878

    Abstract: Cooling system for a rotor of an electric machine having a superconductive field winding and formed of a rotor drum with at least one outer, substantially hollow cylindrical rotor body with a co-rotating cold shield, an inner hollow rotor body fastened at given locations within the outer rotor body so as to be thermally insulated and serving as a coil-winding support, the fastening locations at the outer rotor body being cooled, and a co-rotating mixing chamber located at the inner periphery of the inner hollow rotor body and containing a phase mixture of a coolant fed thereto from the outside, the phase mixture forming, during rotation of the rotor, a radially outwardly flung liquidring and a radially inner vapor column coaxial thereto, including channels for conducting a first coolant flow with liquid coolant from the mixing chamber for cooling the field winding and a second coolant flow with at least partly vaporized coolant for cooling the fastening locations and for returning the first coolant flow, after it has traversed the field winding, back to the mixing chamber and for discharging the second coolant flow out of the electric machine.

    Abstract translation: 一种具有超导场绕组并由具有至少一个具有同向旋转冷屏蔽的至少一个外部基本上中空的圆柱形转子体的转子鼓形成的电机的转子的冷却系统,内部中空转子体固定在 外转子本体被隔热并用作线圈绕组支撑件,外转子体的紧固位置被冷却,同时旋转的混合室位于内中空转子体的内周并且包含一个 从外部供给的冷却剂的相混合物,在转子旋转期间形成的相混合物,与其同轴的径向向外突出的液体冲击管和径向内部蒸汽塔,其包括用于从混合物中导入具有液体冷却剂的第一冷却剂流的通道 用于冷却励磁绕组的第二冷却剂流和具有至少部分蒸发的冷却剂的第二冷却剂流,用于冷却紧固位置并返回 在第一冷却剂流已经穿过励磁绕组之后,返回到混合室并且将第二冷却剂流排出电机。

    Process and device for monitoring the temperature of an electric
generator
    10.
    发明授权
    Process and device for monitoring the temperature of an electric generator 失效
    用于监测发电机温度的过程和装置

    公开(公告)号:US5701044A

    公开(公告)日:1997-12-23

    申请号:US599385

    申请日:1996-02-09

    CPC classification number: G01R31/343 G01K1/026

    Abstract: In order to monitor the temperature of an electric generator, the temperatures of a plurality of rods of a stator winding of the generator being cooled by a coolant, preferably a water-cooled stator winding, are detected. In order to detect a temperature deviation in each winding rod, a measured actual or real temperature value of each winding rod is compared with a reference value for the winding rod. The reference value is derived from parameters previously determined for the winding rod by reference measurement and from presently or currently detected, operation-relevant parameters of the generator. The parameters for each winding rod are derived from a temperature of the winding rod detected during the reference measurement and from a number of functions that corresponds to the number of parameters. The functions are derived from operation-relevant parameters detected during the reference measurement in different states of operation of the generator. The temperature may thus be monitored while operation-relevant influencing variables, such as the stator current of the generator, are taken into account.

    Abstract translation: 为了监测发电机的温度,检测发电机的定子绕组的多个杆的温度由冷却剂,优选水冷定子绕组冷却。 为了检测每个绕组中的温度偏差,将每个绕组的测量实际或实际温度值与绕组的参考值进行比较。 参考值是通过参考测量以及当前或当前检测到的发电机的运行相关参数从先前为绕组杆确定的参数导出的。 每个绕组杆的参数是从在参考测量期间检测到的绕组杆的温度和与参数数量相对应的多个功能得出的。 这些功能来自于在发电机的不同运行状态下在参考测量期间检测的操作相关参数。 因此,可以监视温度,同时考虑与发生器的定子电流等操作相关的影响变量。

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