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    • 43. 发明专利
    • Electric rotating electric machine
    • 电动旋转电机
    • JP2007282366A
    • 2007-10-25
    • JP2006104813
    • 2006-04-06
    • Hitachi Ltd株式会社日立製作所
    • NAKAHARA AKIHITOHATTORI KENICHISENBA AKIOMIKAKIMOTO TADAAKISAEKI MITSURUTAKAHASHI KAZUHIKOKOMURA AKIYOSHI
    • H02K9/06
    • PROBLEM TO BE SOLVED: To provide a compact and light electric rotating electric machine for maintaining cooling capability, and disposing coolers without increasing a height from the lower end of the electric rotating electric machine to an axial center and a total height.
      SOLUTION: The electric rotating electric machine overcomes the problem, and is provided with: a rotor iron core having a rotor winding wound to the rotor iron core; a stator iron core facing the rotor iron core through an air gap, radially extended, and having a plurality ventilation ducts axially disposed at predetermined intervals and a stator winding wound to the stator iron core; a stator frame for receiving them; a plurality of ventilation sections disposed between the stator frame and the stator iron core, and axially partitioned by partition plates; a cooling medium circulated within the stator frame, and cooling the interior of the electric rotating electric machine; the coolers disposed in the middle of a circulation path of the cooling medium, and cooling the cooling medium; and a ventilation path communicated with the ventilation sections, and axially continuous. The coolers are circumferentially disposed in the same position in the axial direction.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种用于保持冷却能力的紧凑型轻型电动旋转电机,并且在不增加从旋转电机的下端到轴向中心和总高度的高度的情况下设置冷却器。 解决方案:旋转电机克服了这个问题,并提供有转子铁芯,转子绕组缠绕在转子铁芯上; 定子铁芯通过气隙面向转子铁芯,径向延伸,并且具有以预定间隔轴向设置的多个通风管道和缠绕在定子铁芯上的定子绕组; 用于接收它们的定子框架; 多个通风部,其设置在所述定子框架和所述定子铁芯之间,并且由隔板轴向隔开; 在定子框架内循环的冷却介质,并且冷却电动旋转电机的内部; 所述冷却器设置在所述冷却介质的循环路径的中间,并且冷却所述冷却介质; 以及与通气部连通的通气路径,并且轴向连续。 冷却器周向地设置在轴向相同的位置。 版权所有(C)2008,JPO&INPIT
    • 44. 发明专利
    • System and method for controlling cogeneration equipment
    • 用于控制加热设备的系统和方法
    • JP2007097304A
    • 2007-04-12
    • JP2005283231
    • 2005-09-29
    • Hitachi Ltd株式会社日立製作所
    • KOMURA AKIYOSHIWATANABE MASAHIRO
    • H02J3/46F02G5/04G06Q50/00G06Q50/06H02J3/00H02J3/38H02J13/00
    • F24D12/02F24H2240/00Y02B30/14Y02E20/14
    • PROBLEM TO BE SOLVED: To efficiently supply power and heat, and to maintain power quality by restricting a voltage of a low-voltage distribution system within an allowed value, in a dispersion power source installed for respective demanders connected to the low-voltage distribution system and for supplying power and heat. SOLUTION: This cogeneration equipment control system includes an operating combination calculating device for the allowed voltage range which calculates such an operational combination that the voltage of a distribution line is within the range of a specified allowable value, on the basis of the combination of the predicted value of the demand power of each demander calculated by a predicted demand power value calculating device, impedance of the distribution line recorded by a distribution line recording device, and cogeneration equipment to be operated calculated by the operating combination calculating device. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:为了有效地供电和加热,并且通过将低压配电系统的电压限制在允许值内来保持电力质量,在与低电压配电系统连接的各个需求器安装的色散电源中, 电压分配系统和供电和供热。 解决方案:该热电联产设备控制系统包括用于允许的电压范围的操作组合计算装置,其基于组合来计算分配线的电压在特定允许值的范围内的操作组合 由预测需求功率值计算装置计算的每个需求者的需求功率的预测值,由配送线路记录装置记录的分配线路的阻抗,以及由操作组合计算装置计算的待运行的热电联产设备。 版权所有(C)2007,JPO&INPIT
    • 45. 发明专利
    • State estimating device, method, and program for distribution system
    • 状态估计装置,分配系统的方法和程序
    • JP2006087177A
    • 2006-03-30
    • JP2004267685
    • 2004-09-15
    • Hitachi Ltd株式会社日立製作所
    • WATANABE MASAHIROKIMURA YASUTAKAOGAWA KENJIKOMURA AKIYOSHIUCHIYAMA TOMOYUKI
    • H02J3/00H02J13/00
    • PROBLEM TO BE SOLVED: To provide a state estimating device, a method, and a program for accurately estimating the power flow state of a distribution system from limited voltage/current observed values of the distribution system. SOLUTION: This distriubtion system state estimating device which estimates the state of the power flow of a distribution system is equipped with a distribution system state estimating part which computes the estimate of the state of the power distribution system based on a measurement database which stores measurements of the power distribution system, a facility database which stores upper and lower limit values of the load connected to the power distribution system, upper and lower limit values of the amount of power generation, and daily patterns or upper and lower limit values of the amount of line impedance modification, and the measurements of the power distirbution system read out of the measurement database and upper and lower limit values of a load connected to the power distribution system or the amount of power generation and the daily patterns or the upper and lower limit values of the amount of line impedance modification read out of the facility database, and a display part which indicates the estimate of the state of the power distribution system that the power distribution system state estimating part has computed. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种状态估计装置,方法和程序,用于从分配系统的有限电压/电流观测值精确地估计分配系统的功率流动状态。 解决方案:该分散系统状态估计装置,其估计分配系统的功率流的状态,配备有分配系统状态估计部,其基于测量数据库计算配电系统的状态的估计, 存储配电系统的测量,存储连接到配电系统的负载的上限值和下限值的设施数据库,发电量的上限值和下限值,以及每日模式或上下限值 线路阻抗修改量,以及从测量数据库中读出的功率分布系统的测量值以及连接到配电系统的负载的上限和下限值,或发电量和日常模式, 从设施数据库读出的线路阻抗修改量的下限值和显示器 表示配电系统状态估计部计算出的配电系统的状态的估计的部分。 版权所有(C)2006,JPO&NCIPI
    • 46. 发明专利
    • Permanent magnet type dynamo-electric machine
    • 永磁电机型动力电机
    • JP2005304136A
    • 2005-10-27
    • JP2004114192
    • 2004-04-08
    • Hitachi Ltd株式会社日立製作所
    • SASAKI MANABUIDE KAZUMASATAKAHASHI MIYOSHISATO SHUJIKOMURA AKIYOSHI
    • H02K21/14H02K1/27
    • PROBLEM TO BE SOLVED: To provide a permanent magnet type dynamo-electric machine which can perform stable rotation for a long period. SOLUTION: This machine is provided with means (13A-13F and 14A-14F), which press a permanent magnet 5 to the side of a retaining ring 6 at rotation, between a magnetic yoke 4Y and the permanent magnet 5 whose periphery is retained by the retaining ring 6 and which is divided in its circumferential direction. By the above constitution, even if space arises in the vicinity of the permanent magnet 5, the retention of the permanent magnet 5 becomes stable by pressing the permanent magnet 5 to the side of the retaining ring 6 at rotation, thus it can suppress low-frequency oscillation or instable oscillation at high-speed rotation. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种长时间稳定旋转的永磁式发电机。 解决方案:该机器具有在磁轭4Y与周向的永久磁铁5之间旋转时将永磁体5按压在保持环6一侧的装置(13A-13F和14A-14F) 被保持环6保持,并且沿其圆周方向分开。 通过上述结构,即使在永久磁铁5附近产生空间,通过将永久磁铁5按压到保持环6一侧旋转,永久磁铁5的保持变得稳定, 频率振荡或高速旋转时的不稳定振荡​​。 版权所有(C)2006,JPO&NCIPI
    • 47. 发明专利
    • Rotor for rotating machine and its manufacturing method, rotating machine and gas turbine power plant
    • 旋转机转子及其制造方法,旋转机和气体涡轮发电厂
    • JP2003299278A
    • 2003-10-17
    • JP2003011739
    • 2003-01-21
    • Hitachi Ltd株式会社日立製作所
    • KOMURA AKIYOSHITAKAHASHI MIYOSHIIDE KAZUMASAKIMURA MAMORUMORI SHIGENOBUYAMAGUCHI KIYOSHIMATSUNOBU TAKASHI
    • H02K15/02H02K1/27H02K15/03H02K21/14
    • PROBLEM TO BE SOLVED: To provide a rotor for a rotating machine which can increase an output and decrease in size by reducing an iron loss of a stator and a vibration at a rotating time, and to provide a method for manufacturing the same, the rotating machine and a gas turbine power plant.
      SOLUTION: The rotor for the rotating machine comprises a shaft, a cylindrical permanent magnet disposed on an outer periphery of the shaft, and a cylindrical holding ring disposed on an outer periphery of the magnet. In this rotor, the magnet is Hallwachs magnetized. The ring is obtained by alternately forming a magnetic material and a nonmagnetic material in a circumferential direction of the outer periphery. In the rotor for the machine comprising a solid cylindrical permanent magnet and a cylindrical holding ring disposed on the outer periphery of the magnet, the magnet is Hallwachs magnetized, the ring is obtained by alternately forming the magnetic material and the nonmagnetic material in the circumferential direction of the outer periphery. Further, the method for manufacturing the same, the rotating machine using the same method and the gas turbine power plant are provided.
      COPYRIGHT: (C)2004,JPO
    • 要解决的问题:为了提供一种能够通过减少定子的铁损和旋转时的振动来提高输出和减小尺寸的旋转机的转子,并提供其制造方法 ,旋转机和燃气轮机发电厂。 解决方案:用于旋转机器的转子包括轴,设置在轴的外周上的圆柱形永磁体和设置在磁体外周上的圆柱形保持环。 在这个转子中,磁体是Hallwachs磁化的。 通过在外周的周向交替地形成磁性材料和非磁性材料来获得环。 在用于机器的转子中,包括固体圆柱形永磁体和设置在磁体外周上的圆柱形保持环,磁体是Hallwachs磁化的,通过在圆周方向上交替地形成磁性材料和非磁性材料来获得环 的外围。 此外,还提供了其制造方法,使用相同方法的旋转机和燃气轮机发电厂。 版权所有(C)2004,JPO
    • 50. 发明专利
    • CRYOGENIC OBJECT FIXING FRAME AND WINDING OF SUPERCONDUCTING MAGNET
    • JPH07249513A
    • 1995-09-26
    • JP3809094
    • 1994-03-09
    • HITACHI LTD
    • YAMAMOTO HIROEOKADA TEIGOKOMURA AKIYOSHI
    • H01F6/06
    • PURPOSE:To clearly visualize the light and darkness or color tone changing part on the peripheral surface of a winding conductor by winding a superconducting conductor by forming a bobbin for winding the conductor, a material for interposed parts required for winding the conductor, the insulating coating material, etc., of the conductor, etc., of a transparent resin or a composite material of a nonmagnetic metallic material and transparent material. CONSTITUTION:A superconducting magnet 9 is constituted of a transparent bobbin 12 integrally formed of a winding shaft 10 and end plate 11 and is provided with a recessed winding section 13a formed on the outer peripheral surface of the bobbin 12 and coolant flowing hole 14 at its center. In addition, transparent clearance spacers 18a and 18b are interposed between the inner peripheral part 15 of the recessed section 13a on the end plate 11 side and the outer peripheral surface 16 of the shaft 10 so as to secure coolant flowing grooves 17a, 17b, and 17c. A superconducting conductor 20 coated with a transparent insulator or opaque formal or polyimide insulator 19 is wound around the shaft 10 in the recessed section 13a with the spacers 18a and 188b in between and the outer peripheral part of the winding is fixed with a transparent resin or transparent fixing plate 21 composed of a transparent resin or a thermosetting tape. Therefore, quenching can be predicted in a early stage.