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1. 发明授权

US10389194B2 Permanent magnet electrical rotating machine with protection members arranged between permanent magnets and rotor cores 有权
公开(公告)号：US10389194B2
公开(公告)日：2019-08-20
申请号：US15305375
申请日：2014-12-03
申请人： Hitachi, Ltd.
发明人： Mamoru Kimura , Masahiro Hori , Youichi Matsumoto , Tetsuo Fujigaki , Motonobu Iiduka , Yoshihiro Yasui , Eiichirou Tokizaki , Masanori Matsumoto
IPC分类号： H02K1/27 , H02K1/32 , H02K9/02 , H02K9/10
摘要： A permanent magnet electrical rotating machine is provided which is capable of contributing to protected permanent magnets and increased cooling performance during operation. The permanent magnet electrical rotating machine includes: permanent magnets; rotor cores that have the permanent magnets mounted thereto and are laminated in a rotating axis direction; spacers that are placed between adjacent rotor cores; and permanent magnet protection members that are installed between the permanent magnets and the rotor cores and also placed to maintain radial continuity in space partitioned by the spacers between the rotor cores.

2. 发明授权

US09935512B2 Permanent magnet rotating electrical machine 有权
公开(公告)号：US09935512B2
公开(公告)日：2018-04-03
申请号：US14557494
申请日：2014-12-02
申请人： HITACHI, LTD.
发明人： Mamoru Kimura , Masahiro Hori , Tetsuo Fujigaki , Youichi Matsumoto , Motonobu Iiduka
IPC分类号： H02K1/27 , H02K1/32
CPC分类号： H02K1/32 , H02K1/2766
摘要： In a permanent magnet rotating electrical machine including a stator, a rotor obtained by stacking a plurality of rotor cores arranged with magnet insertion holes in layers with gaps, and permanent magnets inserted to the magnet insertion holes, the magnet insertion holes are formed on both sides of the duct piece so as to depart from the duct piece disposed between the rotor cores as the magnet insertion holes extend from the side of the center of the rotor core to the outer circumference side, the magnet insertion holes are disposed so as to shift from the duct piece in the circumferential direction of the rotor, and inner circumference side voids having the length in the circumferential direction wider than the thickness in the circumferential direction of the permanent magnets are provided from the inner circumference side ends of the permanent magnets toward the duct piece.

3. 发明授权

US09484793B2 Electrical rotating machine system or wind turbine system 有权
标题翻译：电动旋转机系统或风力发电机组系统
公开(公告)号：US09484793B2
公开(公告)日：2016-11-01
申请号：US13658889
申请日：2012-10-24
申请人： Hitachi, Ltd.
发明人： Mamoru Kimura , Nobuhiro Kusuno , Tomomichi Ito , Tetsuo Fujigaki , Daisuke Kori , Motonobu Iizuka , Akiyoshi Komura
IPC分类号： H02P9/00 , H02K17/44 , H02P9/44 , H02K11/04 , F03D7/04
CPC分类号： H02K17/44 , F03D7/04 , F03D7/042 , H02K11/042 , H02K11/33 , H02P9/007 , H02P9/44 , Y02E10/725
摘要： An electrical rotating machine system that can be easily maintained and can provide improved power generation efficiency. The electrical rotating machine system includes: a first electrical rotating machine having a first stator that has first stator windings, and a first rotor that has first rotor windings and is disposed on the internal diameter side of the first stator so as to have a gap between the internal diameter side of the first stator and the first rotor itself; a second electrical rotating machine having a second stator that has second stator windings, and a second rotor that has second rotor windings and is disposed on the internal diameter side of the second stator so as to have a gap between the internal diameter side of the second stator and the second rotor itself; and at least one power converter that is electrically connected to the first rotor windings and the second rotor windings, and configured to rotate when the first rotor rotates.
摘要翻译：一种易于维护的电动旋转机器系统，可以提供更好的发电效率。旋转电机系统包括：具有第一定子的第一旋转电机，其具有第一定子绕组;以及第一转子，该第一转子具有第一转子绕组，并且设置在第一定子的内径侧上，第一定子的内径侧和第一转子本身; 具有具有第二定子绕组的第二定子的第二旋转电机和具有第二转子绕组并且设置在第二定子的内径侧上的第二转子，以在第二定子绕组的内径侧之间具有间隙定子和第二转子本身; 以及至少一个功率转换器，其电连接到所述第一转子绕组和所述第二转子绕组，并且构造成当所述第一转子旋转时旋转。

4. 发明授权

US10193487B2 Control device for power conversion device, compressor drive system, flywheel power generating system, and control method of power conversion device 有权
公开(公告)号：US10193487B2
公开(公告)日：2019-01-29
申请号：US15656526
申请日：2017-07-21
申请人： Hitachi, Ltd.
发明人： Masatoshi Yoshimura , Mamoru Kimura , Noriaki Hino
IPC分类号： H02P23/00 , H02P27/04 , H02P27/14 , H02P27/08 , H02P6/10
摘要： There are provided a voltage command calculator that calculates a voltage command value that is a command value of an AC voltage to be applied to a rotary electric machine that is driven by a power conversion device, a carrier wave generator that generates a carrier wave, a comparator that generates a pulse signal to be supplied to the power conversion device on the basis of a comparison result between the voltage command value and the carrier wave, and a reset signal receiving unit that changes a value of the carrier wave into a predetermined value when a predetermined reset signal is input.

5. 发明授权

US09225213B2 Electrical rotating machine 有权
标题翻译：电动旋转机
公开(公告)号：US09225213B2
公开(公告)日：2015-12-29
申请号：US13928471
申请日：2013-06-27
申请人： Hitachi, Ltd.
发明人： Mamoru Kimura , Akiyoshi Komura , Daisuke Kori , Tetsuo Fujigaki , Motonobu Iizuka
IPC分类号： H02K1/00 , H02K3/04 , H02K1/27 , H02K1/22
CPC分类号： H02K3/04 , H02K1/223 , H02K1/2766 , Y02E10/725
摘要： An electrical rotating machine includes: a rotating shaft; a rotor, equipped with permanent magnets, and formed to rotate with the rotating shaft, a stator disposed in opposition on an outside-diametral side and via a clearance with respect to the rotor; and anti-demagnetization conductors extending in the axial direction of the shaft, the conductors each being disposed inside the rotor, wherein: the anti-demagnetization conductors are provided in pairs of two for each of magnetic poles of the rotor; the two anti-demagnetization conductors forming a pair are electrically interconnected; and, inside the rotor, the two paired anti-demagnetization conductors are disposed at different-polarity sides of two corresponding permanent magnets in a circumferential direction of the rotor, the different-polarity sides each being more adjacent to the circumferential direction of the rotor than to an end portion of one of the two corresponding permanent magnets existing close to each other in one magnetic pole.
摘要翻译：旋转电机包括：旋转轴; 转子，配备有永久磁铁，并与旋转轴一起旋转，定子相对于转子相对设置在外径侧并经过间隙; 以及沿所述轴的轴向延伸的所述防退磁导体，所述导体各自设置在所述转子的内部，其中：所述抗退磁导体对于所述转子的每个磁极成对设置; 形成一对的两个抗退磁导体电连接; 并且在转子内部，两个成对的防退磁导体在转子的圆周方向上配置在两个相应的永久磁铁的不同极侧，与转子的圆周方向相比更靠近转子的非极性侧比到在一个磁极中彼此靠近存在的两个相应的永磁体之一的端部。

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