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    • 24. 发明公开
    • Turbogenerator
    • 汽轮发电机
    • EP2372106A1
    • 2011-10-05
    • EP11002470.0
    • 2005-08-17
    • Hitachi, Ltd.
    • Nakahara, AkihitoTakahashi, KazuhikoIde, KazumasaKimura, Mamoru
    • F01D15/10F02C7/268H02P9/08
    • F02C7/268F01D15/10
    • A turbogenerator comprises a rotor over which a field winding (21) is disposed;
      a permanent magnet (13) disposed on said rotor; a generator for alternating-current excitation generating a current with a magnetic field produced by said permanent magnet (13) ; an exciter (4) for supplying a current to the field winding (21) of said rotor based on the current generated by said generator for alternating-current excitation; and a turbine for producing motive power to rotate said rotor. The permanent magnet (13) of said generator for alternating-current excitation is disposed between a pole shoe (12) and a rotating shaft (1) of said rotor. ( Fig. 8 )
    • 涡轮发电机包括转子,其上设置有励磁绕组(21); 设置在所述转子上的永磁体(13) 用于产生具有由所述永磁体(13)产生的磁场的电流的交流激励发生器; 基于由所述发电机产生的用于交流励磁的电流向所述转子的励磁绕组(21)提供电流的励磁机(4); 以及用于产生用于旋转所述转子的动力的涡轮机。 用于交流励磁的所述发电机的永磁体(13)设置在所述转子的极靴(12)和转轴(1)之间。 (图8)
    • 25. 发明公开
    • Rotating electrical machine
    • 旋转电机
    • EP2362523A1
    • 2011-08-31
    • EP11167880.1
    • 2009-04-23
    • Hitachi, Ltd.
    • Nakahara, AkihitoMikami, HiroyukiIde, KazumasaTakahashi, KazuhikoHattori, Kenichi
    • H02K1/02
    • H02K1/20H02K1/02H02K1/16
    • A rotating electrical machine includes: a rotor comprising a rotor core and a field winding wound round the rotor core; and a stator (4) comprising a stator core (4) and a stator winding (6) wound round the stator core, the stator being arranged in opposition to the rotor with a predetermined spacing therebetween, and wherein the stator core is formed by punching a split piece, which comprises teeth for insertion of the stator winding thereinto and a core back on an outer periphery thereof, from a magnetic steel sheet (10,11), and laminating a plurality of those circular configurations in an axial direction, in which a plurality of the split pieces are arranged in a circle in a circumferential direction, a plurality of cooling ducts (5) for flowing of a cooling medium in a diametrical direction are formed midway of the axial direction of the stator core, and wherein the axial end region and the axial central region of the stator core are different from each other in axial spacing between the cooling ducts, and portions having different axial spacing between the cooling ducts (5) are different in kind of magnetic steel sheets (10) as laminated.
    • 一种旋转电机,包括:转子,该转子包括转子芯和围绕该转子芯缠绕的励磁绕组; 和包括定子铁芯(4)和缠绕在定子铁芯上的定子绕组(6)的定子(4),所述定子以预定间隔与所述转子相对设置,并且其中所述定子铁芯通过冲压 其包括用于将定子绕组插入其中并且在其外周上具有铁芯背部的齿的分裂片,其由电磁钢片(10,11)构成,并且在轴向方向上层叠多个这些圆形构造,其中, 多个所述分割片在圆周方向上排列成圆形,在所述定子铁心的轴向中途形成有用于使冷却介质沿径向流动的多个冷却导管(5),并且所述轴向 所述定子芯的端部区域和轴向中央区域在所述冷却管道之间的轴向间隔中彼此不同,并且所述冷却管道(5)之间具有不同轴向间隔的部分的种类不同 电磁钢板(10)层压而成。
    • 27. 发明公开
    • Rotary electric machine
    • Drehende elektrische Maschine
    • EP2088410A1
    • 2009-08-12
    • EP08002305.4
    • 2008-02-07
    • Hitachi, Ltd.
    • Nakahara, AkihitoKomura, AkiyoshiIde, KazumasaTakahashi, KazuhikoIwashige, KengoHattori, Kenichi
    • G01K1/02H02K9/08H02K9/24H02K11/00
    • G01K13/08G01K7/42G01K2213/00H02K9/12H02K11/25
    • A rotary electric machine which is smoothly operated with high efficiency by adequately controlling the cooling gas flow as needed to keep the highest temperature inside the rotary electric machine below a predetermined limit, includes a stator with armature windings wound around a stator core, a rotor placed inside the stator in a rotatable manner, and a cooling device for controlling cooling gas flow. The rotary electric machine further includes a device for measuring an ambient temperature and a device for detecting armature voltage and/or armature current and/or field current. The temperature inside the rotary electric machine is calculated from the measured ambient temperature, detection value by the detecting device and an directive value of cooling gas flow. And a calculated suitable value of cooling gas flow is determined according to the calculated temperature inside the rotary electric machine.
    • 通过适当地控制冷却气体流动使旋转电机内部的最高温度保持在预定极限以下,可以高效地平稳地运转的旋转电机包括:定子,其具有缠绕在定子芯上的电枢绕组,转子放置 可旋转的方式在定子内部,以及用于控制冷却气流的冷却装置。 旋转电机还包括用于测量环境温度的装置和用于检测电枢电压和/或电枢电流和/或场电流的装置。 旋转电机内的温度由测量的环境温度,检测装置的检测值和冷却气体流量的指示值计算。 根据计算出的旋转电机内的温度,确定冷却气体流量的合适值。