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。

公开(公告)号：US4361866A

公开(公告)日：1982-11-30

申请号：US261668

申请日：1981-05-07

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

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

IPC分类号： G05F1/45 ,  H02M7/06 ,  H02M7/12 ,  H02M7/155 ,  H02M7/162

CPC分类号： H02M7/162 ,  H02M7/1626

摘要： A power converter for power conversion between an a.c. system and a d.c. system includes a full-wave bridge circuit having GTO connected in at least one arm of the full-wave bridge circuit on the positive polarity side. During a conduction-enabled period of GTO which is determined by a firing phase angle, the GTO is so controlled as to perform current chopping operation by a pulse signal of a predetermined pulse width.

摘要翻译： 一种电源转换器，用于电源转换。 系统和直流 系统包括具有连接在正极侧的全波桥电路的至少一个臂上的GTO的全波桥电路。 在由点火相位角确定的GTO的导通使能期间，控制GTO以通过预定脉冲宽度的脉冲信号进行电流斩波操作。

公开(公告)号：US4256204A

公开(公告)日：1981-03-17

申请号：US938347

申请日：1978-08-31

申请人： Takeki Ando ,  Seiya Shima ,  Toshiaki Kurosawa ,  Hiromi Inaba ,  Hiroaki Kuroha ,  Hideo Miyao ,  Yoshio Sakai ,  Katuhito Issiki

发明人： Takeki Ando ,  Seiya Shima ,  Toshiaki Kurosawa ,  Hiromi Inaba ,  Hiroaki Kuroha ,  Hideo Miyao ,  Yoshio Sakai ,  Katuhito Issiki

IPC分类号： B66B5/02

CPC分类号： B66B5/02

摘要： A safety apparatus for an elevator system is disclosed in which upon detection an instantaneous power service interruption, an emergency brake is applied to the car and continues to be applied for longer than the time required for the particular car to stop.

摘要翻译： 公开了一种用于电梯系统的安全装置，其中在检测到瞬时电力服务中断时，紧急制动被施加到汽车并且继续施加比特定轿厢停止所需的时间更长的时间。

公开(公告)号：US4133018A

公开(公告)日：1979-01-02

申请号：US806595

申请日：1977-06-14

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

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

IPC分类号： G05F1/10 ,  G01R29/18 ,  G01R31/26 ,  H02H7/12 ,  H02M7/12 ,  H02M7/155

CPC分类号： H02H7/12 ,  G01R29/18 ,  G01R31/263

摘要： A thyristor fault-detecting apparatus comprises a thyristor bridge with A.C. terminals connected to a three-phase A.C. power supply and having six thyristor arms, and an inductive load connected to D.C. terminals of the bridge. Each of the A.C. paths has a saturable reactor with an output winding so set as to be excited by the line current within the range from .pi./3 to 2.pi./3 (rad). Output voltages of the reactors are rectified and added, so that a fault in the thyristor is detected by the disappearance of the added output.

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。

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。