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    • 1. 发明授权
    • Electromagnetic stirring unit for continuous steel casting mould
    • 连续铸钢模具用电磁搅拌机组
    • US4424856A
    • 1984-01-10
    • US235881
    • 1981-02-19
    • Susumu OnodaHaruo KitamuraToshio Kikuchi
    • Susumu OnodaHaruo KitamuraToshio Kikuchi
    • B22D11/115B22D11/10
    • B22D11/115
    • An improved electromagnetic stirring unit is disclosed for use in continuous casting of steel in which the cooling unit which houses the electromagnetic stirring coil (6) comprises a cooling wall (9) for a direct contact with the molten steel (12), the cooling wall having at its inner side a plurality of cooling water passages (10,11) for evenly distributing the cooling water, a chamber (2) for housing the electromagnetic stirring coil disposed such that the upper end of the electromagnetic stirring coil is at the level of the molten steel surface in the casting mould; a water discharge chamber (4); and a water supply chamber (3) a side wall (7) of the coil housing chamber, opposite to the cooling wall, having an opening large enough to permit the electromagnetic stirring coil to pass therethrough; the electromagnetic stirring coil being attached to a readily removable cover (7') for this opening, whereby preventive maintenance of the coil is facilitated, FIG. 2.
    • 公开了一种用于钢的连续铸造的改进的电磁搅拌单元,其中容纳电磁搅拌线圈(6)的冷却单元包括用于与钢水(12)直接接触的冷却壁(9),冷却壁 在其内侧具有用于均匀分配冷却水的多个冷却水通道(10,11),用于容纳电磁搅拌线圈的室(2),其布置成使得电磁搅拌线圈的上端处于 浇铸模具中的钢水表面; 排水室(4); 和供水室(3)与所述冷却壁相对的所述线圈容纳室的侧壁(7),具有足以允许所述电磁搅拌线圈通过的开口; 电磁搅拌线圈附接到用于该开口的容易移除的盖(7')上,从而便于线圈的预防性维护。 2。
    • 7. 发明授权
    • Rotating electric machine and method of manufacture therefor
    • 旋转电机及其制造方法
    • US06700283B2
    • 2004-03-02
    • US09986047
    • 2001-11-07
    • Toshio KikuchiShinichiro KitadaYutaro KanekoTakashi Tsuneyoshi
    • Toshio KikuchiShinichiro KitadaYutaro KanekoTakashi Tsuneyoshi
    • H02K3487
    • H02K3/24H02K1/185H02K3/522H02K9/197H02K15/0018H02K15/12
    • This invention provides a rotating electric machine using an inner section of a slot of a stator as a cooling passage and allowing a high cooling efficiency. Furthermore, it provides a manufacture method for the rotating electric machine which allows streamlining of the manufacture of the cooling passage. A plate is attached to the plate retaining groove formed in proximity to the opening of the slot of the stator. A resin layer is formed by injection of resin into a space formed between the outer face of the plate and the mold set on an inner peripheral face of the stator. The plate is pressed by the injection pressure of the resin to come into close contact with the stopper and to create a seal which prevents leakage of resin into the slot. A leg is provided on the plate and extends into the slot for reducing the cross sectional surface area of the cooling passage.
    • 本发明提供一种旋转电机,其使用定子的槽的内部部分作为冷却通道并且允许高的冷却效率。 此外,它提供了一种旋转电机的制造方法,其允许精简冷却通道的制造。 板被附接到形成在定子的槽的开口附近的板保持槽。 树脂层通过将树脂注入到形成在板的外表面和设置在定子的内周面上的模具之间的空间中而形成。 板被树脂的注射压力压紧以与止动器紧密接触,并产生防止树脂泄漏到槽中的密封。 腿部设置在板上并延伸到槽中以减小冷却通道的横截面积。
    • 10. 发明授权
    • Circuit for driving permanent-magnet synchronous motor using
proportional controller
    • 使用比例控制器驱动永磁同步电机的电路
    • US5656911A
    • 1997-08-12
    • US575624
    • 1995-12-20
    • Tomoharu NakayamaKoetsu FujitaShigenori KinoshitaTakao YanaseMasahiko HanazawaShinichiro KitadaToshio KikuchiTakeshi Aso
    • Tomoharu NakayamaKoetsu FujitaShigenori KinoshitaTakao YanaseMasahiko HanazawaShinichiro KitadaToshio KikuchiTakeshi Aso
    • H02P21/00H02K21/12H02P7/06H02P27/04H02P5/402
    • H02P21/06H02P21/0089H02P21/22
    • A driving device controls a permanent-magnet synchronous motor having a permanent magnet in its rotor using a voltage-type inverter supplying drive power for the synchronous motor, makes the torque of the synchronous motor and the d-axis current flowing in the synchronous motor in the direction of the magnetic flux generated by the permanent magnet approach their own command values, and performs weakening field control by decreasing the d-axis current. To perform the above described control without complicated d-axis current command value operations or temperature amendments to motor constants, the driving device includes a proportional controller for outputting a d-axis signal proportional to the deviation between a d-axis current detection value and a d-axis current command value for the motor. A d-axis voltage command value and a q-axis voltage command value are determined according to the d-axis signal and a q-axis signal obtained based on the deviation between a q-axis current detection value, which is a component in the direction normal to the magnetic flux, and the torque command value for the motor. A voltage command vector is obtained from the d-axis voltage command value and the q-axis voltage command value. The voltage command vector is PWM-converted and a voltage-type inverter control signal is generated.
    • 驱动装置使用向同步电动机供给驱动力的电压型逆变器来控制在其转子中具有永磁体的永磁同步电动机,使同步电动机的转矩和同步电动机中的d轴电流流入 由永久磁铁产生的磁通量的方向接近其自身的指令值,并通过减小d轴电流来进行弱磁场控制。 为了执行上述控制而没有复杂的d轴电流指令值操作或电机常数的温度修正,驱动装置包括一个比例控制器,用于输出与d轴电流检测值和 电机的d轴电流指令值。 d轴电压指令值和q轴电压指令值根据d轴信号和基于q轴电流检测值(q轴电流检测值) 方向垂直于磁通量,以及电机的转矩指令值。 从d轴电压指令值和q轴电压指令值得到电压指令矢量。 电压指令矢量进行PWM转换,产生电压型逆变器控制信号。