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1. 发明授权

EP2362523B1 Rotating electrical machine 有权转让
公开(公告)号：EP2362523B1
公开(公告)日：2013-12-11
申请号：EP11167880.1
申请日：2009-04-23
申请人： Hitachi, Ltd.
发明人： Nakahara, Akihito , Mikami, Hiroyuki , Ide, Kazumasa , Takahashi, Kazuhiko , Hattori, Kenichi
IPC分类号： H02K1/02
CPC分类号： H02K1/20 , H02K1/02 , H02K1/16

2. 发明公开

EP1548913A3 Armature windings and dynamo-electric machine using the same 审中-公开
标题翻译：电枢绕组和电动发电机与这样的
公开(公告)号：EP1548913A3
公开(公告)日：2008-03-05
申请号：EP04027776.6
申请日：2004-11-23
申请人： Hitachi, Ltd.
发明人： Hattori, Kenichi , Takahashi, Kazuhiko , Ide, Kazumasa , Shibata, Takashi , Watanabe, Takashi
IPC分类号： H02K3/14
CPC分类号： H02K3/14 , H02K3/24
摘要： An armature winding includes a plurality of strand groups (1, 2) each having strands (11 to 1n; 21 to 2n) transposed and bound in at least two rows and multiple tiers, and a main insulator (4) for covering the strand group. A flow resistance of a current passing though the strands on an upper and a lower side in the cross-section of the strand group is set larger than a flow resistance of a current which passes through the strands in a central portion, or a flow resistance of a current passing through at least one of the plurality of strand groups is set larger than a flow resistance of a current passing through the remaining strand groups.

3. 发明公开

EP1341287A3 Rotor for rotating electric machine 审中-公开
标题翻译：转子电动机
公开(公告)号：EP1341287A3
公开(公告)日：2005-11-09
申请号：EP03003274.2
申请日：2003-02-24
申请人： Hitachi, Ltd.
发明人： Komura, Akiyoshi , Ide, Kazumasa , Watanabe, Takashi , Hattori, Kenichi , Tsunoda, Tomoya , Odajima, Shinya , Aoyama, Hiroshi
IPC分类号： H02K3/24
CPC分类号： H02K3/24 , Y10T29/49073
摘要： A rotor for a rotating electric machine comprises a rotor core (1), and a plurality of rotor conductors (3) wound on the rotor core. At least one of the rotor conductors is provided with a cooling groove (10), and edges of at least one of the cooling grooves are rounded by a radius process to reduce peak stresses that may be induced around the edges of the cooling groove.
摘要翻译：用于旋转电机的转子包括转子芯（1）和缠绕在转子芯上的多个转子导体（3）。至少一个转子导体设置有冷却槽（10），并且至少一个冷却槽的边缘通过半径过程被倒圆，以减少可能在冷却槽的边缘周围引起的峰值应力。

4. 发明公开

EP1333558A2 Rotor for rotating electric machine and method of fabricating the same, for gas turbine power plant 审中-公开
标题翻译： Ankers einer elektrischen drehenden Maschine，Herstellungsverfahren derselbenfürGasturbinenkraftwerk
公开(公告)号：EP1333558A2
公开(公告)日：2003-08-06
申请号：EP03002098.6
申请日：2003-01-30
申请人： Hitachi, Ltd.
发明人： Komura, Akiyoshi , Takahashi, Miyoshi , Ide, Kazumasa , Kimura, Mamoru , Mori, Takanobu , Yamaguchi, Kiyoshi , Matsunobu, Takashi
IPC分类号： H02K1/27
CPC分类号： H02K1/2733 , Y10T29/49012
摘要： A rotor for a rotating electric machine comprises a shaft (1), a cylindrical permanent magnet (2) put on the shaft, and a holding ring (3, 3a, 3b) fixedly put on the permanent magnet. The permanent magnet is magnetized by Halbach magnetization, and the holding ring is formed by circumferentially alternately arranging nonmagnetic segments (3a) of a nonmagnetic material and magnetic segments (3b) of a magnetic material. Another rotor for a rotating electric machine comprises a solid, cylindrical permanent magnet (2a), and a cylindrical holding ring put on the permanent magnet, wherein the permanent magnet is magnetized by Halbach magnetization, and the holding ring is formed by circumferentially alternately arranging nonmagnetic segments of a nonmagnetic material and magnetic segments of a magnetic material. A rotating electric machine is provided with one of the foregoing rotors, and a gas turbine power plant is equipped with a rotating electric machine including one of the foregoing rotors. A rotor capable of reducing stator core loss and vibrations when rotated, of providing high output and of being formed in a small size for a rotating electric machine, a method of fabricating the rotor, a rotating electric machine, and a gas turbine power plant are provided.
摘要翻译：一种用于旋转电机的转子包括轴（1），放置在轴上的圆柱形永磁体（2）和固定地放置在永磁体上的保持环（3,3a，3b）。永磁体通过Halbach磁化磁化，并且保持环通过周向地交替布置非磁性材料的非磁性部分（3a）和磁性材料的磁性段（3b）而形成。用于旋转电机的另一转子包括固体圆柱形永磁体（2a）和放置在永磁体上的圆柱形保持环，其中永磁体通过Halbach磁化磁化，并且保持环由周向交替排列形成非磁性非磁性材料的片段和磁性材料的磁性片段。旋转电机设置有上述转子之一，燃气轮机发电厂配备有包括前述转子之一的旋转电机。一种转子，其能够在旋转时减小定子铁芯损耗和振动，提供高输出并且为旋转电机形成小尺寸的转子，制造转子的方法，旋转电机和燃气轮机发电厂的转子，提供。

5. 发明公开

EP0630094A3 Turbine generator 失效
标题翻译：汽轮发电机组。
公开(公告)号：EP0630094A3
公开(公告)日：1995-08-02
申请号：EP94304355.4
申请日：1994-06-16
申请人： HITACHI, LTD.
发明人： Wakui, Shinichi , Ide, Kazumasa , Koharagi, Haruo , Takahashi, Miyoshi , Miyakawa, Kado , Yagi, Yasuomi
IPC分类号： H02K1/26 , H02K3/487 , H02K3/16 , H02K19/00
CPC分类号： H02K3/487 , H02K1/265 , H02K3/16 , H02K19/26
摘要： The rotor 2 of a rotating field type turbine generator is provided with slots 3 for accommodating the field windings, wedges 4 positioned at the portions of the magnetic poles on the rotor 2 for holding the field windings and wedges 5 positioned between the magnetic poles on the rotor. These wedges 4 and 5 are constituted by metal bars without joints to enhance damper effect thereby. Magnetomotive forces due to higher harmonics, which causes temperature rise of the rotor 2 and torque ripple during starting with thyristors, induces an elliptic rotating magnetic field having the longer diameter on d axis extending in the direction of magnetomotive force induced by the field windings and the shorter diameter on q axis perpendicular to d axis, and thus a larger eddy current is induced flowing along q axis on the rotor 2 than that flowing along d axis. Therefore the thickness d' in radial direction of the wedges 5 positioned between the magnetic poles on the rotor 2 is determined larger than the thickness d in radial direction of the wedges 4 positioned at the portions of the magnetic poles on the rotor 2 to reduce the resistance of the wedges 5 and to easily lead the eddy current flowing in the axial direction of the rotor 2, thereby a good thermal balance over the entire portions on the rotor 2 is achieved.

6. 发明授权

EP2372106B1 Turbogenerator 有权转让
标题翻译：汽轮发电机
公开(公告)号：EP2372106B1
公开(公告)日：2012-11-21
申请号：EP11002470.0
申请日：2005-08-17
申请人： Hitachi, Ltd.
发明人： Nakahara, Akihito , Takahashi, Kazuhiko , Ide, Kazumasa , Kimura, Mamoru
IPC分类号： F01D15/10 , F02C7/268 , H02P9/08
CPC分类号： F02C7/268 , F01D15/10

7. 发明公开

EP2372106A1 Turbogenerator 有权转让
标题翻译：汽轮发电机
公开(公告)号：EP2372106A1
公开(公告)日：2011-10-05
申请号：EP11002470.0
申请日：2005-08-17
申请人： Hitachi, Ltd.
发明人： Nakahara, Akihito , Takahashi, Kazuhiko , Ide, Kazumasa , Kimura, Mamoru
IPC分类号： F01D15/10 , F02C7/268 , H02P9/08
CPC分类号： F02C7/268 , F01D15/10
摘要： 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 )
摘要翻译：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）

8. 发明公开

EP2362523A1 Rotating electrical machine 有权转让
标题翻译：旋转电机
公开(公告)号：EP2362523A1
公开(公告)日：2011-08-31
申请号：EP11167880.1
申请日：2009-04-23
申请人： Hitachi, Ltd.
发明人： Nakahara, Akihito , Mikami, Hiroyuki , Ide, Kazumasa , Takahashi, Kazuhiko , Hattori, Kenichi
IPC分类号： H02K1/02
CPC分类号： H02K1/20 , H02K1/02 , H02K1/16
摘要： 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.
摘要翻译：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。

9. 发明授权

EP2088410B1 Rotary electric machine 有权
公开(公告)号：EP2088410B1
公开(公告)日：2010-05-26
申请号：EP08002305.4
申请日：2008-02-07
申请人： Hitachi, Ltd.
发明人： Nakahara, Akihito , Komura, Akiyoshi , Ide, Kazumasa , Takahashi, Kazuhiko , Iwashige, Kengo , Hattori, Kenichi
IPC分类号： G01K1/02 , H02K9/08 , H02K9/24 , H02K11/00
CPC分类号： G01K13/08 , G01K7/42 , G01K2213/00 , H02K9/12 , H02K11/25

10. 发明公开

EP2088410A1 Rotary electric machine 有权
标题翻译： Drehende elektrische Maschine
公开(公告)号：EP2088410A1
公开(公告)日：2009-08-12
申请号：EP08002305.4
申请日：2008-02-07
申请人： Hitachi, Ltd.
发明人： Nakahara, Akihito , Komura, Akiyoshi , Ide, Kazumasa , Takahashi, Kazuhiko , Iwashige, Kengo , Hattori, Kenichi
IPC分类号： G01K1/02 , H02K9/08 , H02K9/24 , H02K11/00
CPC分类号： G01K13/08 , G01K7/42 , G01K2213/00 , H02K9/12 , H02K11/25
摘要： 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.
摘要翻译：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。

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