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    Variable-speed power generating system
    2.
    发明公开
    Variable-speed power generating system 失效
    变速发电系统

    公开(公告)号：EP0275953A3

    公开(公告)日：1989-03-15

    申请号：EP88100608.4

    申请日：1988-01-18

    申请人： HITACHI, LTD. ,  THE KANSAI ELECTRIC POWER CO., INC.

    发明人： Furukawa, Yosio ,  Yasaka, Yasuhiro ,  Nagura, Osamu ,  Haraguchi, Eiji ,  Nakagawa, Hiroto ,  Oono, Yasuteru

    IPC分类号： H02P9/48

    CPC分类号： H02P9/007 ,  H02P9/42 ,  H02P2101/10 ,  Y10T307/735

    摘要： A variable-speed power generating system comprises a variable-speed generator (5) electrically connected at its primary winding to an electric power system (1) and at its secondary winding to the electric power system through a frequency converter (9) and mechanically coupled to a driver (6) driving the secondary side thereof, a phase detector (8) generating an output signal representing a slip frequency in response to the application of a first input having a frequency component of an output generated from the primary winding of the variable-speed generator and a second input having a frequency component corresponding to the rotation speed of the driver, a controller (10) controlling the frequency onverter on the basis of a reference phase provided by the output signal of the phase detector, and regulating means (15, 16;) for controlling the frequency converter so that, when the variable-speed generator is disconnected from the electric power system, the frequency applied to the secondary winding of the variable-speed generator may not deviate from a predetermined allowable range of variable frequency operation of the frequency converter.

    Electric rotary machine, method for producing the same and hydro-electric power installation with the machine
    5.
    发明公开
    Electric rotary machine, method for producing the same and hydro-electric power installation with the machine 失效
    旋转电机，其制造方法，以及该含机器水力发电厂。

    公开(公告)号：EP0414129A2

    公开(公告)日：1991-02-27

    申请号：EP90115693.5

    申请日：1990-08-16

    申请人： HITACHI, LTD. ,  THE KANSAI ELECTRIC POWER CO., INC.

    发明人： Tsuji, Eiji ,  Nagura, Osamu ,  Kayukawa, Shigehiro ,  Yasaka, Yasuhiro ,  Hagiya, Koshi ,  Hakuta, Shinsaku ,  Kita, Eizo ,  Nakagawa, Hiroto ,  Oono, Yasuteru ,  Kuzusaka, Satoshi

    IPC分类号： H02K1/30 ,  H02K1/28 ,  H02K1/26 ,  H02K15/02 ,  H02K17/42

    CPC分类号： H02K1/32 ,  H02K1/30

    摘要： An electric rotating machine including a rotor (50) having a spider arm (1) which is fixedly mounted on a substantially vertical shaft (11) and has arms (14) ex­tending radially outwardly from the shaft (11), and an annular rotor rim (2) fixedly mounted on distal ends of the arms (14) of the spider arm (1). The laminated core (3) is fixedly mounted on an outer periphery of the rotor rim (2), and is composed of a plurality of fan-shaped thin core plates (31) of steel laminated and arranged in an an­nular shape. Slot grooves (32) are formed in an outer pe­riphery of the core plates. The rotor rim (2) is composed of laminated rim members (21) each made of an annular thick steel plate, and rim engaging grooves are formed in an outer periphery of the rim member at equal intervals. The core plate has core engaging grooves (33) opposed to the rim engaging grooves (26), respectively, in such a manner that the number of complete core engaging grooves is two. An axially-extending connecting key (8) is fitted in each mating pair of core engaging groove and rim en­gaging groove to fix the laminated core (3) to the rotor rim (2).

    摘要翻译： 在电动旋转电机包括转子（50），低具有蜘蛛（1）所有其固定地安装在大致竖直的轴（11），并具有臂（14）沿径向向外延伸，从所述轴（11），并且在环形设计转子轮缘 （2）固定地安装在蜘蛛臂（1）的臂（14）的远端。 叠片铁芯（3）固定地安装在设置于转子轮缘（2）的外周上，并且由钢层压的扇形薄芯板（31）的多个，并在环形设计形状布置英寸 槽沟（32）是在所述芯板形成外周。 转子磁轭（2）是由层压轮缘构件（21），各由一个环形设计厚钢板的，和轮缘啮合槽以相等的间隔在所述轮缘构件的外周形成英寸 芯板具有相对的分别与轮辋的卡合槽（26），在寻求的方式芯接合槽（33）做了完整的芯接合槽的数量为两个。 轴向延伸的连接键（8）装配在每个配合对芯接合槽和边缘卡合槽以固定层叠铁心（3）到所述转子轮辋（2）。

    Variable-speed power generating system
    6.
    发明公开
    Variable-speed power generating system 失效
    系统zum Erzeugen von Leistung bei wechselnder Drehzahl。

    公开(公告)号：EP0275953A2

    公开(公告)日：1988-07-27

    申请号：EP88100608.4

    申请日：1988-01-18

    申请人： HITACHI, LTD. ,  THE KANSAI ELECTRIC POWER CO., INC.

    发明人： Furukawa, Yosio ,  Yasaka, Yasuhiro ,  Nagura, Osamu ,  Haraguchi, Eiji ,  Nakagawa, Hiroto ,  Oono, Yasuteru

    IPC分类号： H02P9/48

    CPC分类号： H02P9/007 ,  H02P9/42 ,  H02P2101/10 ,  Y10T307/735

    摘要： A variable-speed power generating system comprises a variable-speed generator (5) electrically connected at its primary winding to an electric power system (1) and at its secondary winding to the electric power system through a frequency converter (9) and mechanically coupled to a driver (6) driving the secondary side thereof, a phase detector (8) generating an output signal representing a slip frequency in response to the application of a first input having a frequency component of an output generated from the primary winding of the variable-speed generator and a second input having a frequency component corresponding to the rotation speed of the driver, a controller (10) controlling the frequency onverter on the basis of a reference phase provided by the output signal of the phase detector, and regulating means (15, 16;) for controlling the frequency converter so that, when the variable-speed generator is disconnected from the electric power system, the frequency applied to the secondary winding of the variable-speed generator may not deviate from a predetermined allowable range of variable frequency operation of the frequency converter.

    摘要翻译： 变速发电系统包括：变速发电机（5），其在其初级绕组处电连接到电力系统（1），并且其次级绕组通过变频器（9）电连接到电力系统，并机械耦合 驱动其次级侧的驱动器（6），相位检测器（8），响应于应用具有从所述变量的初级绕组产生的输出的频率分量的第一输入，产生表示转差频率的输出信号 速度发生器和具有与驱动器的转速对应的频率分量的第二输入;控制器（10），其基于由相位检测器的输出信号提供的参考相位来控制变频器;以及调节装置（ 15,16;），用于控制变频器，使得当变速发电机与电力系统断开时，施加到第二次的频率 变速发电机的二次绕组可能不偏离变频器的可变频率运行的预定容许范围。

    Method of assembling wound rotor of vertical type adjustable speed hydroelectric rotating machine at its installation site
    7.
    发明公开
    Method of assembling wound rotor of vertical type adjustable speed hydroelectric rotating machine at its installation site 失效
    装配在其安装位置垂直型速度可调的和水力发电旋转机的绕线转子的方法。

    公开(公告)号：EP0358945A2

    公开(公告)日：1990-03-21

    申请号：EP89114667.2

    申请日：1989-08-08

    申请人： HITACHI, LTD.

    发明人： Hakuta, Shinsaku ,  Yasaka, Yasuhiro ,  Nagura, Osamu ,  Tsuji, Eiji ,  Suzuki, Makoto ,  Akagawa, Hirotaka

    IPC分类号： H02K15/00 ,  H02K15/06

    CPC分类号： H02K15/063 ,  H02K15/00 ,  Y02E10/22 ,  Y10T29/49012

    摘要： A method of assembling a wound rotor of an adjustable speed electric rotating machine comprises the step of laying down a rotor body (10) on its side into a pit (1a) in a power house of a hydroelectric power plant, but protruding its circum­ference top surface from the pit (1a) to facilitate working personnels to carry out field coil assembling operations from the foundation of the power house. Thus, an increase in height of the power house is limited to the sum of the axial length of the assembled wound rotor (15) and the height of the lift­ing jig of a crane (50).

    摘要翻译： 组装可调节速度旋转电机的绕线转子的方法，包括在其侧面上的转子体（10）铺设在坑里（1a）的植物在一个水力发电的重地，但突出其圆周顶部的步骤 从坑（1a）的表面，以便于工作人员从厂房地基进行励磁线圈装配操作。 因此，为了增加在厂房高度被限制在组装绕线转子（15）和一个起重机（50）的提升夹具的高度的轴向长度的总和。