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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

EP1703623B1 An electrical rotation machine and a wind turbine system 有权
标题翻译：一种旋转电机及风力涡轮机系统
公开(公告)号：EP1703623B1
公开(公告)日：2014-12-24
申请号：EP06003063.2
申请日：2006-02-15
申请人： HITACHI, LTD.
发明人： Kimura, Mamoru , Ide, Kazumasa , Nishihama, Kazuo , Fujigaki, Tetsuo , Mizutani, Shuji
IPC分类号： H02K21/16 , H02K1/27
CPC分类号： H02K1/276 , H02K21/16 , Y02E10/725

7. 发明公开

EP2112742A2 Rotating electrical machine 有权转让
标题翻译：旋转电机
公开(公告)号：EP2112742A2
公开(公告)日：2009-10-28
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.
摘要翻译：一种旋转电机，包括：转子（7），其包括转子铁芯和缠绕在转子铁芯上的励磁绕组; 以及定子，该定子包括定子芯（4）和缠绕在定子芯上的定子绕组（6）。定子与转子相对设置，两者之间具有预定间距。定子铁芯是由电磁钢片冲裁出一个分裂片而形成的，该分裂片包括用于将定子绕组插入其中的齿以及在其外周上的铁芯背部的分离片，并且将多个这些圆形构造沿轴向层叠其中多个分割片在圆周方向上排列成圆形。定子铁心被构成为，其轴向中央区域（11）的电磁钢板的直径方向的导磁率比轴向端部区域（10）的磁性钢板高。

8. 发明公开

EP1703623A3 An electrical rotation machine and a wind turbine system 有权
标题翻译：一种旋转电机及风力涡轮机系统
公开(公告)号：EP1703623A3
公开(公告)日：2008-08-27
申请号：EP06003063.2
申请日：2006-02-15
申请人： HITACHI, LTD.
发明人： Kimura, Mamoru , Ide, Kazumasa , Nishihama, Kazuo , Fujigaki, Tetsuo , Mizutani, Shuji
IPC分类号： H02K21/16 , H02K1/27
CPC分类号： H02K1/276 , H02K21/16 , Y02E10/725
摘要： An electric rotation machine (121) for windmill power generation equipped with a stator slot structure having distributed windings and a rotor pole structure having permanent magnets (3), wherein
the number of slots per pole per phase (Nspp) is undividable by 3 times P (where P is the number of poles), and
pole width rate Pw obtained by dividing pole piece width Tp by pole pitch Tr at the outermost diameters of the adjoining poles of the rotor (2) is satisfied any of Pw ≤ 0.6, 0.67 ≤ pw ≤ 0.71, and 0.78 ≤ Pw.
The distortion factors of induced voltages in a permanent magnet type electrical rotation machine (121), particularly for windmill power generation, can be reduced.

9. 发明公开

EP1703623A2 An electrical rotation machine and a wind turbine system 有权
标题翻译： Rotierende elektrische Maschine und Windturbinensystem
公开(公告)号：EP1703623A2
公开(公告)日：2006-09-20
申请号：EP06003063.2
申请日：2006-02-15
申请人： HITACHI, LTD.
发明人： Kimura, Mamoru , Ide, Kazumasa , Nishihama, Kazuo , Fujigaki, Tetsuo , Mizutani, Shuji
IPC分类号： H02K21/16 , H02K1/27
CPC分类号： H02K1/276 , H02K21/16 , Y02E10/725
摘要： An electric rotation machine (121) for windmill power generation equipped with a stator slot structure having distributed windings and a rotor pole structure having permanent magnets (3), wherein
the number of slots per pole per phase (Nspp) is undividable by 3 times P (where P is the number of poles), and
pole width rate Pw obtained by dividing pole piece width Tp by pole pitch Tr at the outermost diameters of the adjoining poles of the rotor (2) is satisfied any of Pw ≤ 0.6, 0.67 ≤ pw ≤ 0.71, and 0.78 ≤ Pw.
The distortion factors of induced voltages in a permanent magnet type electrical rotation machine (121), particularly for windmill power generation, can be reduced.
摘要翻译：一种用于风力发电的电动旋转机器（121），其具有分布绕组的定子槽结构和具有永磁体（3）的转子磁极结构，其中每相极数（Nspp）的每个极数不可分3倍P （其中P是极数）和通过将转子（2）的相邻极的最外径处的极靴宽度Tp除以极间距Tr获得的极宽率Pw满足Pw‰0.6,0.67‰ pw 0.71，0.78‰Pw。永磁式电动旋转机（121）中的感应电压的失真因数，特别是用于风车发电的失真因子可以降低。

10. 发明公开

EP1555749A2 Electrical rotating machine control unit and power generation system 审中-公开
标题翻译： Steuereinheit einer elektrisch rotierenden Maschine und Leistungerzeugungsystem
公开(公告)号：EP1555749A2
公开(公告)日：2005-07-20
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
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.
摘要翻译：由于需要解析器检测非常昂贵的旋转位置，并且双馈机器上的旋转位置信号线的噪声抑制，发电机的成本增加和由于可能的故障导致的可靠性降低是不可避免的。为了解决这样的问题，本发明的发电系统配备有从每个一次电流I 1和电压V 1以及二次电流I 2和电压I 2估算双馈机的转差频率的励磁机（7） V 2，并以估计的转差频率激发双馈机器的二次。

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