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21. 发明公开

EP2112742A3 Rotating electrical machine 有权转让
公开(公告)号：EP2112742A3
公开(公告)日：2011-06-15
申请号：EP09158652.9
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 (7) comprising a rotor core and a field winding wound round the rotor core; and a stator comprising a stator core (4) and a stator winding (6) wound round the stator core. The stator is arranged in opposition to the rotor with a predetermined spacing there between. The stator core is formed by punching a split piece, which comprises teeth for insertion of the stator winding there into and a core back on an outer periphery thereof, from a magnetic steel sheet, 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. The stator core is configured so that the magnetic steel sheets at the axial central region (11) thereof are higher in magnetic permeability in the diametrical direction than the magnetic steel sheets at the axial end region (10) thereof.

22. 发明公开

EP1333558A3 Rotor for rotating electric machine and method of fabricating the same, for gas turbine power plant 审中-公开
标题翻译：旋转电机的电枢，其制造方法为燃气涡轮发电设备
公开(公告)号：EP1333558A3
公开(公告)日：2005-01-26
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.

23. 发明授权

EP2362524B1 Rotating electrical machine 有权转让
公开(公告)号：EP2362524B1
公开(公告)日：2013-12-04
申请号：EP11167890.0
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

24. 发明授权

EP2112742B1 Rotating electrical machine 有权转让
标题翻译：电气车床
公开(公告)号：EP2112742B1
公开(公告)日：2013-06-12
申请号：EP09158652.9
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

25. 发明公开

EP1555749A3 Electrical rotating machine control unit and power generation system 审中-公开
标题翻译：的旋转电机的控制单元和发电系统
公开(公告)号：EP1555749A3
公开(公告)日：2008-09-24
申请号：EP04019398.9
申请日：2004-08-16
申请人： Hitachi, Ltd.
发明人： Kimura, Mamoru , Futami, Motoo , Ichinose, Masaya , Ide, Kazumasa , Imaie, Kazuhiro
IPC分类号： H02P9/00 , H02P9/42 , H02P21/00
CPC分类号： H02P21/14 , H02P9/007 , H02P9/42 , H02P21/24 , H02P2101/15 , H02P2207/073
摘要： Because of the necessity of resolver for detecting a rotating position, which is very expensive, and noise suppression of the rotating position signal line on a doubly-fed machine, cost increase of the generator and reduced reliability due to possible failures are inevitable. In order to solve such problem, a generation system in the present invention is equipped with an exciter (7) that estimates the slip frequency of the doubly-fed machine from each primary current I 1 and voltage V 1 and secondary current I 2 and voltage V 2 of the doubly-fed machine and excites the secondary of the doubly-fed machine at the estimated slip frequency.

26. 发明公开

EP1705783A1 Generator and electric generating system 有权转让
标题翻译：发电机和发电机系统
公开(公告)号：EP1705783A1
公开(公告)日：2006-09-27
申请号：EP06003405.5
申请日：2006-02-20
申请人： HITACHI, LTD.
发明人： Nakahara, Akihito , Ide, Kazumasa , Kimura, Mamoru , Takahashi, Kazuhiko
IPC分类号： H02K21/14 , H02K1/27 , H02K1/24
CPC分类号： H02K1/276 , H02K1/24 , H02K21/14
摘要： The object of the invention is to provide a generator easy to assemble even if there is an obstacle such as a turbine in the axial direction of the rotor (20; 1107; 1401) of the generator.
A generator comprising:
a rotor (20; 1107; 1401) having a permanent magnet (13; 1102; 1413) placed therein and supported to be rotatable, and a stator (7; 1106) having a field coil (C1-C24; 1105) wound thereon, characterized in that;
the rotor (20; 1107; 1401) is provided with a seating (24; 1104; 1424) made of a magnetic material for supporting the permanent magnet (13; 1102; 1413) and a pole shoe (12; 1109; 1412) made of a magnetic material placed in the outward radial direction (31) of the permanent magnet (13; 1102; 1413).
摘要翻译：本发明的目的是提供即使在发电机的转子（20; 1107; 1401）的轴向上存在涡轮等障碍物也容易组装的发电机。一种发电机，包括：转子（20; 1107; 1401），其具有放置在其中并被支撑为可旋转的永磁体（13; 1102; 1413）和具有励磁线圈（C1-C24; 1105）的定子（7; 1106）），其特征在于：所述转子（20; 1107; 1401）设置有由用于支撑永磁体（13; 1102; 1413）的磁性材料制成的座（24; 1104; 1424）和制成的极靴（12; 1109; 1412）放置在永磁体（13; 1102; 1413）的向外径向（31）上的磁性材料。

27. 发明授权

EP1128525B1 Rotating electric machine comprising an armature winding 有权
标题翻译：电机与电枢绕组
公开(公告)号：EP1128525B1
公开(公告)日：2005-11-23
申请号：EP00119127.9
申请日：2000-09-04
申请人： Hitachi, Ltd.
发明人： Wakui, Shinichi , Takahashi, Miyoshi , Ide, Kazumasa , Shiobara, Ryoichi , Otani, Hidenari , Semba, Akitomi , Sato, Junji
IPC分类号： H02K3/28
CPC分类号： H02K3/28

28. 发明公开

EP1128525A3 Armature winding and rotating electric machine using the same 有权
标题翻译： Ankerwicklung und drehende elektrische Maschine mit derselben
公开(公告)号：EP1128525A3
公开(公告)日：2002-06-05
申请号：EP00119127.9
申请日：2000-09-04
申请人： Hitachi, Ltd.
发明人： Wakui, Shinichi , Takahashi, Miyoshi , Ide, Kazumasa , Shiobara, Ryoichi , Otani, Hidenari , Semba, Akitomi , Sato, Junji
IPC分类号： H02K3/28
CPC分类号： H02K3/28
摘要： In order to make voltage unbalance between the winding circuitries of each phase small and to make edge structure of the armature winding simplified, in a rotating electric machine of four poles, having slot of 9n (1 ≦ n ≦ 7) pieces provided for the stator core with a double-layer winding per each slot, and the armature winding of three-phase and star connection being constituted with three winding circuitry connected in parallel in each phase, two of the four poles of each phase are constituted with only one of the three winding circuitries.
摘要翻译：为了使每相的绕组电路之间的电压不平衡变小，并使电枢绕组的边缘结构简化，在四极的旋转电机中具有9n（1≤n≤7）的槽为每个槽提供具有双层绕组的定子铁芯，并且三相和星形连接的电枢绕组由在每相中并联连接的三个绕组电路构成，每相的四个极中的两个由只有三个绕组电路之一。

29. 发明授权

EP0630094B1 Turbine generator 失效
标题翻译：汽轮发电机
公开(公告)号：EP0630094B1
公开(公告)日：1997-11-26
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

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