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10 条记录 (耗时 0.01 秒)

    Stop-positioning device for linear induction motor
    1.
    发明公开
    Stop-positioning device for linear induction motor 失效
    线性感应电动机的Stopp-Positioniervorrichtungfüreinen。

    公开(公告)号：EP0166350A2

    公开(公告)日：1986-01-02

    申请号：EP85107465.8

    申请日：1985-06-14

    申请人： HITACHI, LTD.

    发明人： Tanamachi, Tokunosuke ,  Ando, Takeki ,  Shima, Seiya ,  Itoh, Masanobu ,  Ibamoto, Masahiko

    IPC分类号： H02K41/025 ,  H02P3/18

    CPC分类号： H02P3/06 ,  B60L13/03 ,  B60L2200/26 ,  H02K41/025 ,  H02N15/00 ,  H02P3/18

    摘要： In a linear induction motor, three-phase coils (61, 62, 63) wound around a primary core (5) are excited according to a three-phase excitation mode for producing a shifting magnetic field thereby causing traveling movement of a secondary conductor (2), a plurality of perforations (21) are provided in the secondary conductor, and, when it is required to stop the secondary conductor at a desired stop position, current supply to the coil of one phase is interrupted by switches to change over the excitation mode to a single-phase excitation mode thereby producing a positioning force as a result of the coaction between magnetic fields and currents induced around the perforations (21).

    摘要翻译： 在线性感应电动机中，围绕初级铁心（5）缠绕的三相线圈（61,62,63）根据用于产生换档磁场的三相励磁模式被激励，从而引起次级导体的行进运动（ 如图2所示，在次级导体中设置多个穿孔（21），并且当需要在所期望的停止位置停止次级导体时，一个相线圈的电流供应被切换切换 激励模式到单相激励模式，从而由于在穿孔（21）周围引起的磁场和电流之间的共同作用而产生定位力。

    Stop-positioning device for linear induction motor
    2.
    发明公开
    Stop-positioning device for linear induction motor 失效
    用于线性感应电机的停止定位装置

    公开(公告)号：EP0166350A3

    公开(公告)日：1987-03-11

    申请号：EP85107465

    申请日：1985-06-14

    申请人： HITACHI, LTD.

    发明人： Tanamachi, Tokunosuke ,  Ando, Takeki ,  Shima, Seiya ,  Itoh, Masanobu ,  Ibamoto, Masahiko

    IPC分类号： H02K41/025 ,  H02P03/18

    CPC分类号： H02P3/06 ,  B60L13/03 ,  B60L2200/26 ,  H02K41/025 ,  H02N15/00 ,  H02P3/18

    摘要： In a linear induction motor, three-phase coils (61, 62, 63) wound around a primary core (5) are excited according to a three-phase excitation mode for producing a shifting magnetic field thereby causing traveling movement of a secondary conductor (2), a plurality of perforations (21) are provided in the secondary conductor, and, when it is required to stop the secondary conductor at a desired stop position, current supply to the coil of one phase is interrupted by switches to change over the excitation mode to a single-phase excitation mode thereby producing a positioning force as a result of the coaction between magnetic fields and currents induced around the perforations (21).

    摘要翻译： 在线性感应电动机中，围绕初级铁心（5）缠绕的三相线圈（61,62,63）根据用于产生换档磁场的三相励磁模式被激励，从而引起次级导体的行进运动（ 如图2所示，在次级导体中设置多个穿孔（21），并且当需要在所期望的停止位置停止次级导体时，一个相线圈的电流供应被切换切换 激励模式到单相激励模式，从而由于在穿孔（21）周围引起的磁场和电流之间的共同作用而产生定位力。

    Controller for elevator
    3.
    发明公开
    Controller for elevator 无效
    电梯控制器

    公开(公告)号：EP0074093A3

    公开(公告)日：1984-11-07

    申请号：EP82108112

    申请日：1982-09-02

    申请人： Hitachi, Ltd.

    发明人： Inaba, Hiromi ,  Shima, Seiya ,  Ando, Takeki ,  Kurosawa, Toshiaki ,  Katayama, Yasunori ,  Hatakeyama, Takanobu ,  Hokari, Sadao

    IPC分类号： B66B01/16

    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.

    Apparatus for controlling power converters
    4.
    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.

    发明人： Inaba, Hiromi ,  Shima, Seiya ,  Ando, Takeki ,  Kurosawa, Toshiaki ,  Mitsui, Nobuo

    IPC分类号： H02M5/45

    CPC分类号： H02P27/08 ,  H02M5/4505 ,  H02M5/4585 ,  H02P23/0077

    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
    5.
    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.

    发明人： Inaba, Hiromi ,  Shima, Seiya ,  Ando, Takeki ,  Kurosawa, Toshiaki ,  Katayama, Yasunori ,  Hatakeyama, Takanobu ,  Hokari, Sadao

    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.

    Apparatus for controlling power converters
    6.
    发明公开
    Apparatus for controlling power converters 失效
    Einrichtungfürdie Steuerung von Leistungskonvertern。

    公开(公告)号：EP0265867A2

    公开(公告)日：1988-05-04

    申请号：EP87115575.0

    申请日：1987-10-23

    申请人： HITACHI, LTD.

    发明人： Inaba, Hiromi ,  Shima, Seiya ,  Ando, Takeki ,  Kurosawa, Toshiaki ,  Mitsui, Nobuo

    IPC分类号： H02M5/45

    CPC分类号： H02P27/08 ,  H02M5/4505 ,  H02M5/4585 ,  H02P23/0077

    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.

    摘要翻译： 一种用于控制电力转换器的装置，包括：脉冲发生器（包括微型计算机（10,11）），用于向功率转换器（如逆变器（5））的半导体器件（31-36,51-56）或 转换器（3））。 脉冲发生器具有抽取脉冲的功能，使得脉冲图案可以形成预定的功能，只要脉冲宽度小于限制值（Limit）即可。 结果，功率转换器的输入和输出波形可以被制成正弦波，并且可以从功率转换半导体器件的最小脉冲宽度的约束中解除。