Control apparatus for alternating-current source
    1.
    发明公开
    Control apparatus for alternating-current source 有权
    Regelvorrichtungfüreine Wechselstromquelle

    公开(公告)号:EP1257049A3

    公开(公告)日:2003-12-10

    申请号:EP02002878.3

    申请日:2002-02-08

    申请人: Hitachi, Ltd.

    IPC分类号: H02P7/62

    CPC分类号: H02P21/00 H02P6/16 H02P25/08

    摘要: In order to supply an AC motor control apparatus which identifies the type of motor automatically , the AC motor control apparatus has a motor type identification means by which the type of motor connected to the motor control apparatus is identified by issuing the appropriate voltage command for motor type identification and judging from the detected current whether the motor rotor is equipped with a magnet and has magnetic salience. The AC motor control apparatus has a control scheme selection means which selects the appropriate control scheme according to the above-identified type of motor and controls the driving of the motor.

    摘要翻译: 为了提供自动识别电动机类型的交流电动机控制装置,交流电动机控制装置具有电动机类型识别装置,通过发出适当的电动机电压指令来识别连接到电动机控制装置的电动机的类型 根据检测到的电流判断电机转子是否装有磁铁,具有磁性突出性。 交流电动机控制装置具有根据上述类型的电动机选择合适的控制方案的控制方案选择装置,并控制电动机的驱动。

    Electric rotary machine and power generation systems using the same
    2.
    发明公开
    Electric rotary machine and power generation systems using the same 审中-公开
    Drehende elektrische Maschine und Stromversorgungssystem damit

    公开(公告)号:EP1237259A2

    公开(公告)日:2002-09-04

    申请号:EP01128444.5

    申请日:2001-12-05

    申请人: Hitachi, Ltd.

    IPC分类号: H02K7/18 H02K7/12 H02K16/02

    摘要: The present invention provides an electric rotary machine (2) including a rotor (20) having a field magnet provided on a shaft (22), the field magnet comprising a first field magnet (21A) with magnetic poles of sequentially different polarities arranged in a rotational direction, a second field magnet (21B) with magnetic poles of sequentially different polarities arranged in a rotational direction wherein the second field magnet is rotatable on the shaft and displaced axially with respect to the first field magnet.

    摘要翻译: 本发明提供一种电动旋转机械(2),其包括具有设置在轴(22)上的场磁体的转子(20),所述磁场磁体包括具有顺序地不同极性的磁极的第一场磁体(21A) 旋转方向的第二场磁体(21B),其具有沿旋转方向布置的顺序不同极性的磁极,其中第二场磁体可以在轴上旋转并相对于第一场磁体轴向移位。

    Electric power converter
    5.
    发明公开
    Electric power converter 审中-公开
    电力转换器

    公开(公告)号:EP2099117A2

    公开(公告)日:2009-09-09

    申请号:EP09001957.1

    申请日:2009-02-12

    申请人: Hitachi Ltd.

    IPC分类号: H02M7/00

    CPC分类号: H02M7/003

    摘要: In an electric power converter, semiconductor switching elements (1a ∼ 1c, 2a ∼ 2c) and capacitors (4a ∼ 4h) are so arranged that the direction of the alignment of the positive and negative terminals of the semiconductor switching elements (1a ∼ 1c, 2a ∼ 2c) is nearly the same as the direction of the alignment of the positive and negative terminals of those (4e ∼ 4h, 4a ∼ 4d) of the capacitors which are located in the vicinity of the semiconductor switching elements (1a ∼ 1c, 2a ∼ 2c), and that the order of the positive and negative terminals appearing in the alignment of the semiconductor switching elements (1a ∼ 1c, 2a ∼ 2c) are opposite to the order of the positive and negative terminals appearing in the alignment of those (4e ∼ 4h, 4a ∼ 4d) of the capacitors which are located in the vicinity of the semiconductor switching elements (1a ∼ 1c, 2a ∼ 2c).

    摘要翻译: 在电力变换装置中,半导体开关元件(1a〜1c,2a〜2c)和电容器(4a〜4h)的配置方式使得半导体开关元件(1a〜1c, 2a〜2c)与位于半导体开关元件(1a〜1c)附近的电容器(4e〜4h,4a〜4d)的正负端子的对准方向大致相同, 2a〜2c),并且在半导体开关元件(1a〜1c,2a〜2c)的对准中出现的正端子和负端子的顺序与出现在那些对准中的正负端子的顺序相反 (1a〜1c,2a〜2c)附近的电容器的电容(4e〜4h,4a〜4d)。

    Power feeding system for an elevator
    6.
    发明公开
    Power feeding system for an elevator 有权
    电源系统的电梯

    公开(公告)号:EP1106559A3

    公开(公告)日:2003-01-29

    申请号:EP00126896.0

    申请日:2000-12-07

    申请人: Hitachi, Ltd.

    IPC分类号: B66B1/28 B66B17/12

    摘要: An elevator in which an elevator-car and a counter weight are hung like a draw well. The elevator includes a receiving unit for receiving an electric power from a feeding unit provided in a hoistway, an inverter for converting the received electric power into ac power, a motor connected to an ac side of the inverter, for driving the counter weight in up and down directions, a sensor for detecting a position of a receiving unit, and a control unit for controlling an inverter on the basis of the position detected by the position sensor. The counter weight has the receiving means, the inverter, and the motor.

    Apparatus for controlling power converters
    7.
    发明公开
    Apparatus for controlling power converters 失效
    控制电源转换器的装置

    公开(公告)号:EP0265867A3

    公开(公告)日:1989-08-02

    申请号:EP87115575.0

    申请日:1987-10-23

    申请人: HITACHI, LTD.

    IPC分类号: H02M5/45

    摘要: An apparatus for controlling power converters comprises a pulse generator (including a microcomputer (10, 11)) for sup­plying a pulse pattern to semiconductor devices (31-36, 51-56) of a power converter (such as an inverter (5) or a converter (3)) using the pulse width control scheme. The pulse generator is provided with a function of decimating pulses so that the pulse pattern may form a predetermined function provided that the pulse width is shorter than a limit value (Limit). As a result, the input and output waveforms of the power converter can be made sinusoidal and can be released from the constraint of the minimum pulse width of power conversion semiconductor devices.

    Controller for elevator
    8.
    发明公开
    Controller for elevator 无效
    电梯控制系统。

    公开(公告)号:EP0074093A2

    公开(公告)日:1983-03-16

    申请号:EP82108112.2

    申请日:1982-09-02

    申请人: Hitachi, Ltd.

    IPC分类号: B66B1/16

    CPC分类号: B66B1/285

    摘要: An elevator controller which uses an acceleration command signal that has as its initial value a start shock compensation torque which will offset the unbalance torque caused at the time of starting. From the completion of elevator car acceleration to the start of deceleration, the acceleration command is gradually increased or decreased to control the motor (7, 8) so as to provide a smoother motion of the car (1). After the inception of the car deceleration a velocity command is issued which increases with the reducing distance between the car (1) and the destination floor.

    Elevator group supervisory control system
    10.
    发明公开
    Elevator group supervisory control system 有权
    GruppensteuerungssystemfürAufzüge

    公开(公告)号:EP1705146A1

    公开(公告)日:2006-09-27

    申请号:EP05017313.7

    申请日:2005-08-09

    IPC分类号: B66B1/20

    摘要: An elevator group control system is provided which stably keeps cage's position in temporally equal interval condition over a long period of time.
    The present invention provides a system comprising: reference route generating means, which for each elevator, generates a reference route which the elevator should follow with respect to the time axis and position axis; and assignment means which selects an elevator for assignment to a generated hall call so as to make the actual trajectory of each elevator closer to its reference route.
    Since reference routes which guides the cage's trajectory into temporally equal interval condition are generated and car assignment is executed so as to make the respective cages follow their reference routes, it is possible to allow the cages to settle in temporally equal interval condition over a long period of time.

    摘要翻译: 提供一种电梯组控制系统,其在长时间内稳定地保持轿厢在时间上等间隔的位置。 本发明提供一种系统,包括:对于每个电梯,参考路线产生装置产生电梯相对于时间轴和位置轴线跟随的参考路线; 以及分配装置,其选择用于分配给所生成的门厅呼叫的电梯,以使每个电梯的实际轨迹更接近其参考路线。 由于产生将笼子的轨迹引导到时间上相等的间隔条件的参考路径,并且执行轿厢分配以使得各个笼子遵循其参考路线,所以可以允许笼子在长时间等待时间上等待的条件下进行 的时间。