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    AC-to-DC power converter with improved power factor and overvoltage suppression
    4.
    发明授权
    AC-to-DC power converter with improved power factor and overvoltage suppression 失效
    具有改善的功率因数和过压抑制的AC到DC功率转换器

    公开(公告)号：US4584636A

    公开(公告)日：1986-04-22

    申请号：US473729

    申请日：1983-03-09

    申请人： Takeki Ando ,  Toshiaki Kurosawa ,  Hiroaki Kuroha ,  Yoshio Sakai

    发明人： Takeki Ando ,  Toshiaki Kurosawa ,  Hiroaki Kuroha ,  Yoshio Sakai

    IPC分类号： H02M7/12 ,  H02M7/155 ,  H02M7/162 ,  H02M7/48 ,  H02P7/292

    CPC分类号： H02M7/515 ,  H02M7/1623

    摘要： An AC-to-DC power conversion by connecting GTO elements to the positive arms of a three-phase full wave bridge circuit and by repeating the mode of supplying power to a load from an AC power supply by controlling the GTO elements, and the mode of making the current flowing to the load flow back at the time of interruption of the power supply mode, when the power supply mode and the flow-back mode are switched over, overvoltage at the time of the switching is suppressed by simultaneously causing the power supply and flow-back currents to flow.

    摘要翻译： 通过将GTO元件连接到三相全波桥电路的正臂并且通过控制GTO元件重复从AC电源向负载供电的模式进行AC到DC电力转换，以及模式 在电源模式中断时使流过负载的电流回流，当电源模式和回流模式切换时，通过同时引起电源的同时抑制开关时的过电压 供应和回流电流流动。

    Fault detecting system for a control system
    5.
    发明授权
    Fault detecting system for a control system 失效
    控制系统故障检测系统

    公开(公告)号：US4171505A

    公开(公告)日：1979-10-16

    申请号：US845062

    申请日：1977-10-25

    申请人： Seiya Shima ,  Hiroaki Kuroha ,  Ando Takeki ,  Hiromi Inaba ,  Toshiaki Kurosawa ,  Mutsuhiro Terunuma ,  Yoshio Sakai

    发明人： Seiya Shima ,  Hiroaki Kuroha ,  Ando Takeki ,  Hiromi Inaba ,  Toshiaki Kurosawa ,  Mutsuhiro Terunuma ,  Yoshio Sakai

    IPC分类号： B66B1/30 ,  B66B5/10 ,  G05B23/02 ,  G05B5/00

    CPC分类号： B66B5/10 ,  B66B1/30 ,  G05B23/0235 ,  Y10S388/903 ,  Y10S388/904 ,  Y10S388/917

    摘要： In a speed feedback control system wherein a speed command signal and a speed feedback signal are compared and wherein the deviation between these signals is entered into a speed control unit, the speed signal is differentiated to apply speed damping in order to suppress the oscillations of the control system. In this case, while the speed command and the actual speed make a great difference transiently, the speed command is approximate to the sum between the speed feedback signal and the damping signal even transiently. Therefore, the speed command signal is compared with the sum between the speed feedback signal and the damping signal, and the fault of the speed control system is detected upon the fact that the deviation has exceeded a predetermined value.

    摘要翻译： 在速度反馈控制系统中，其中比较速度指令信号和速度反馈信号，并且其中这些信号之间的偏差被输入到速度控制单元中，速度信号被微分以施加速度阻尼，以便抑制振荡 控制系统。 在这种情况下，当速度指令和实际速度瞬间产生很大差异时，速度指令即使瞬时接近速度反馈信号和阻尼信号之和。 因此，将速度指令信号与速度反馈信号和阻尼信号之间的和进行比较，并且在偏差超过预定值的事实上检测速度控制系统的故障。

    Apparatus for controlling AC elevators
    6.
    发明授权
    Apparatus for controlling AC elevators 失效
    用于控制交流电梯的装置

    公开(公告)号：US4779709A

    公开(公告)日：1988-10-25

    申请号：US899640

    申请日：1986-08-25

    申请人： Nobuo Mitsui ,  Yoshio Sakai ,  Masao Nakazato ,  Mitsuyuki Honbu ,  Shigeta Ueda ,  Seiya Shima ,  Katsu Komuro ,  Takeki Ando ,  Akiteru Ueda ,  Kazuhiko Sasaki ,  Toshiaki Kurosawa

    发明人： Nobuo Mitsui ,  Yoshio Sakai ,  Masao Nakazato ,  Mitsuyuki Honbu ,  Shigeta Ueda ,  Seiya Shima ,  Katsu Komuro ,  Takeki Ando ,  Akiteru Ueda ,  Kazuhiko Sasaki ,  Toshiaki Kurosawa

    IPC分类号： H02M5/458 ,  B66B1/30

    CPC分类号： H02M5/4585

    摘要： An elevator control apparatus comprises an inverter device for supplying an induction motor for driving an elevator cage with AC electric power of variable voltage and frequencies and control equipment for controlling the output voltage and frequencies of the inverter device in response to signals produced in floors served by the elevator and in an elevator cage. The inverter device is constructed by a converter unit for converting AC electric power to DC electric power, at the input end of which a capacitor is connected in parallel with an AC electric source, an inverter unit for inverting the DC electric power converted in the converter unit into AC electric power, at the output end of which a capacitor is connected in parallel with an induction motor for driving the elevator cage and a DC reactor connected between the converter unit and the inverter unit.The thus constructed elevator control apparatus does not cause interference in electric appliances such as audio equipment, computer etc. existing within a building in which the elevator is installed.

    摘要翻译： 电梯控制装置包括：逆变器装置，用于提供用于驱动电梯轿厢的感应电动机，其具有可变电压和频率的交流电;以及控制设备，用于响应于由服务的楼层产生的信号来控制逆变器装置的输出电压和频率 电梯和电梯笼。 逆变器装置由转换器单元构成，用于将AC电力转换成DC电力，其输入端与AC电源并联连接电容器;反相器单元，用于使在转换器中转换的DC电力反相 单元转换为交流电力，其输出端与用于驱动电梯轿厢的感应电动机并联连接电容器，连接在转换器单元和逆变器单元之间的直流电抗器。 这样构成的电梯控制装置不会对存在于安装有电梯的建筑物内的音响设备，电脑等电器产生干扰。

    Speed control system for a motor
    8.
    发明授权
    Speed control system for a motor 失效
    电机调速系统

    公开(公告)号：US4263988A

    公开(公告)日：1981-04-28

    申请号：US957093

    申请日：1978-11-03

    申请人： Hiromi Inaba ,  Seiya Shima ,  Takeki Ando ,  Toshiaki Kurosawa ,  Hiroaki Kuroha

    发明人： Hiromi Inaba ,  Seiya Shima ,  Takeki Ando ,  Toshiaki Kurosawa ,  Hiroaki Kuroha

    IPC分类号： B66B5/06 ,  H02P7/34 ,  H02P7/16

    CPC分类号： B66B5/06 ,  H02P7/34 ,  Y10S388/906

    摘要： A speed control system for an elevator motor, comprising a D. C. motor for driving an elevator, a device which generates a speed command signal for the elevator, a speed dynamo which generates a speed signal corresponding to a speed of the elevator, a speed control device which adjusts an applied voltage to the motor according to the speed deviation between the speed command signal and the speed signal, an emergency stop device which subjects the elevator to braking when the speed deviation has exceeded a predetermined value, and a blind sector device which provides an output when the speed signal has exceeded a predetermined value and which negatively feeds it back to the speed control device.

    摘要翻译： 一种用于电梯电动机的速度控制系统，包括用于驱动电梯的直流电动机，产生电梯的速度指令信号的装置，产生与电梯速度对应的速度信号的速度发电机，速度控制装置 其根据速度指令信号和速度信号之间的速度偏差来调节对电动机的施加电压;当速度偏差超过预定值时使电梯进行制动的紧急停止装置;以及提供 当速度信号超过预定值并且将其反馈给速度控制装置时的输出。