WO2002057174A1 - Unite de commande pour tapis roulant de transport de personnes, et tapis roulant de transport de personnes - Google Patents

Unite de commande pour tapis roulant de transport de personnes, et tapis roulant de transport de personnes Download PDF

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Publication number
WO2002057174A1
WO2002057174A1 PCT/JP2001/005459 JP0105459W WO02057174A1 WO 2002057174 A1 WO2002057174 A1 WO 2002057174A1 JP 0105459 W JP0105459 W JP 0105459W WO 02057174 A1 WO02057174 A1 WO 02057174A1
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WIPO (PCT)
Prior art keywords
power supply
commercial power
closed
circuit
residual voltage
Prior art date
Application number
PCT/JP2001/005459
Other languages
English (en)
Japanese (ja)
Inventor
Akio Iwata
Katumi Hirasawa
Original Assignee
Mitsubishi Denki Kabushiki Kaisha
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Denki Kabushiki Kaisha filed Critical Mitsubishi Denki Kabushiki Kaisha
Priority to EP01941256.8A priority Critical patent/EP1394097B1/fr
Publication of WO2002057174A1 publication Critical patent/WO2002057174A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B25/00—Control of escalators or moving walkways

Definitions

  • the present invention relates to a control device and a man conveyor for a man conveyor such as an escalator and a moving sidewalk capable of speed conversion.
  • a constant-frequency three-phase AC supplied from a commercial power supply is converted into a variable voltage / variable frequency three-phase AC by a converter and supplied to the motor.
  • the motor is driven at low speed by outputting three-phase alternating current with a frequency lower than the frequency of the commercial power supply.5
  • the motor is switched to the commercial power supply. For high-speed operation.
  • a synchronization detection device is provided, and the three-phase AC output from the conversion device is commercialized.
  • the motor is connected from the converter to the commercial power supply in synchronization with the three-phase AC of the power supply.
  • a conventional conveyer control device equipped with such a synchronization detection device
  • the three-phase AC output from the converter and the output from the commercial power supply are used.
  • the power is switched by detecting the synchronization of the frequency with the three-phase AC. Therefore, the switching between the low-speed operation and the high-speed operation is performed smoothly, and the switching shock and noise at the time of the switching can be reduced.
  • the synchronous detection device has a problem that its structure is complicated and it is expensive.
  • switching between low-speed operation and high-speed operation in such a man conveyor may be performed when there is no user of the man conveyor. That is, the user If not, operate the conveyor at low speed, switch to high-speed operation before the user enters the conveyor, and transfer the user by high-speed operation. Therefore, in such a case, even if the above-described synchronization detection device is not used, the switching shock and noise are not directly affected by the user. However, switching shocks and noise may affect the drive components and other components that make up the man conveyor.
  • the present invention has been made to solve the above problems, and provides an inexpensive and highly reliable man-conveyor control device and man-conveyor that can reduce switching shock and noise without using a synchronization detection device.
  • the purpose is to: Disclosure of the invention
  • the drive motor connected to the conversion device connected to the commercial power supply when switching from low-speed operation to high-speed operation, is disconnected from the conversion device, and then the residual voltage of the motor is reduced. And the motor is directly connected to a commercial power supply. Furthermore, when switching from high-speed operation to low-speed operation, the drive motor directly connected to the commercial power supply is disconnected from the commercial power supply, and then the motor is connected to the above-mentioned converter with the residual voltage of the motor reduced. Is to be connected to. This makes it possible to achieve a switching operation between low-speed operation and high-speed operation with an inexpensive configuration and no switching shock and no noise.
  • the present invention relates to the improved control device for a man conveyor described above, wherein the drive motor is disconnected from the conversion device and connected to a commercial power supply after a certain period of time when switching from low-speed operation to high-speed operation. . Furthermore, when switching from high-speed operation to low-speed operation, the drive motor is disconnected from the commercial power supply and connected to the converter after a certain period of time. As a result, it is possible to achieve the switching operation between the low-speed operation and the high-speed operation with an inexpensive configuration and no switching shock or noise.
  • the present invention provides the improved control device for a man conveyor described above, further comprising a residual voltage detecting device for detecting a residual voltage of the driving motor. Then, at the time of switching from low-speed operation to high-speed operation, the driving motor is disconnected from the converter, and after it is detected that the residual voltage has become equal to or lower than a predetermined value, the motor is connected to a commercial power supply. Furthermore, when switching from high-speed operation to low-speed operation, the drive motor is disconnected from the commercial power supply, and after it is detected that the residual voltage has fallen below a predetermined value, the converter Is to be connected to. As a result, it is possible to achieve a switching operation between low-speed operation and high-speed operation with an inexpensive configuration without switching shock or noise.
  • the present invention provides the improved control device for a man conveyor described above, further comprising a load device for reducing a residual voltage of the driving motor. Then, after the motor is disconnected from the converter or the commercial power supply, the motor and the load device are connected. As a result, the residual voltage of the motor can be positively reduced, so that the switching time is short and the switching shock can be reduced.
  • the present invention provides a method for switching a low-speed operation to a high-speed operation, disconnecting a part of the plurality of driving motors connected to the converter connected to the commercial power supply from the converter, and then resuming the residual voltage of the motor.
  • all of the motors are connected directly to the commercial power source when the power is reduced.
  • all of the plurality of drive motors directly connected to the commercial power supply are disconnected from the commercial power supply, and then the plurality of Is connected to the converter.
  • the residual voltage of the motor can be reduced early, so that the switching shock can be reduced.
  • the present invention provides the improved conveyer control device described above, in which, when switching from low-speed operation to high-speed operation, some of the driving motors are cut off from the conversion device, and after a certain time, all the motors are turned off. It is connected to commercial power. In addition, when switching from high-speed operation to low-speed operation, all motors are disconnected from the commercial power source, and after a certain period of time, some motors are connected to the converter. As a result, the residual voltage of the motor can be reduced early, so that the switching shock can be reduced.
  • the present invention provides the improved control device for a man conveyor described above, further comprising a residual voltage detecting device for detecting a residual voltage of the driving motor.
  • a residual voltage detecting device for detecting a residual voltage of the driving motor.
  • the present invention provides the improved control device for a man-conveyor described above, further comprising a load device for reducing residual voltages of a plurality of drive motors. Then, after some or all of the plurality of motors are disconnected from the converter or the commercial power supply, the motors and the load device are connected. As a result, the residual voltage of the motor can be positively reduced, so that the switching time is short and the switching shock can be reduced.
  • the present invention provides the improved conveyer control device described above, further comprising a passenger detection device for detecting the presence or absence of a user of the conveyer. When it is detected that there is a user, the man conveyor is switched from low-speed operation to high-speed operation. When it is detected that there is no user, the man conveyor is switched from high-speed operation to low-speed operation. As a result, it is possible to achieve a high-reliability inexpensive configuration and speed conversion of the man conveyor corresponding to the presence or absence of a user.
  • the present invention is a man conveyor provided with the above-described man conveyor control device.
  • switching between low-speed operation and high-speed operation can be performed without generating switching shock or noise.
  • FIG. 1 is a power circuit diagram showing a preferred first man-conveyor control device according to the present invention.
  • FIG. 2 is a control circuit diagram showing a preferred first man-conveyor control device according to the present invention.
  • FIG. 3 is a control circuit diagram showing a continuation of FIG.
  • FIG. 4 is a voltage waveform diagram at the time of power supply switching by the preferable first man-conveyor control device according to the present invention.
  • FIG. 5 is a voltage waveform diagram corresponding to FIG. 4 when the power supply is switched by the conventional conveyor control device.
  • FIG. 6 is a control circuit diagram illustrating a preferred second man-conveyor control device according to the present invention.
  • FIG. 7 is a power diagram showing a third control device of the third preferred embodiment of the present invention. It is a circuit diagram.
  • FIG. 8 is a control circuit diagram showing a preferred third man-conveyor control device according to the present invention.
  • FIG. 9 is a voltage waveform diagram at the time of power supply switching by the third control device for a preferred conveyor according to the present invention.
  • FIG. 10 is a power circuit diagram showing a fourth preferred control device of a man conveyor according to the present invention.
  • FIG. 11 is a control circuit diagram showing a fourth preferred control device for a man conveyor according to the present invention.
  • FIG. 1 is a power circuit diagram of a control device for a man conveyor according to the first embodiment
  • FIGS. 2 and 3 are control circuit diagrams
  • FIGS. 4 and 5 are voltage waveform diagrams at the time of power supply switching.
  • R, S, and T are three-phase commercial power supplies, and + and-are DC control power supplies.
  • Reference numeral 1 denotes a variable voltage variable frequency device (hereinafter, referred to as a VV VF device) as a converter for converting three-phase alternating current of commercial power supplies R, S, and T into a variable voltage, variable frequency three-phase alternating current. It has a converter 1 ⁇ that converts phase alternating current to direct current, a smoothing capacitor 1B connected to the output side of converter 1 ⁇ , and an impeller 1C that is connected to the smoothing capacitor 1B and converts direct current to three-phase alternating current. I have.
  • Reference numeral 2 denotes an induction motor (driving motor) that drives a man conveyor connected to the AC side of Invar 1C.
  • 3 is a group of safety switches
  • 4 is a stop switch
  • 5 is a start switch
  • 6 is an ascending electromagnetic contactor (hereinafter referred to as ascending contactor)
  • 6a to 6d are normally open contacts
  • 6e Is a normally closed contact
  • 7 is a descending electromagnetic contactor (hereinafter referred to as a descending contactor)
  • 7a to 7d are normally open contacts
  • 7e is a normally closed contact
  • 8 is an operation relay
  • 8a and 8b are normally open contacts
  • 9 is a manual speed changeover switch.
  • 10 is a low-speed relay
  • 10 a and 10 b are normally open contacts
  • 10 c is also normally open Limit contacts
  • 10 d to 10 f are also normally closed contacts
  • 11 is a high-speed relay
  • .11 a to l 1 c are normally open contacts
  • 11 d is also normally open timed contacts
  • lie is also normally closed 1 and 2 are contacts that close when the frequency of the AC power supply R, S, and T and the output frequency of the VVVF device 1 become equal
  • 13 is a power frequency detection relay
  • 13a is its normally open contact
  • 13b is the same normally Closed contact
  • 13 c is also a normally closed timed contact
  • 14 is a VVVF device operating relay
  • 14 a is its normally open contact
  • 14 b is also a normally closed contact
  • 15 is a switching time setting relay
  • 15 a is its switching time setting relay.
  • Normally open timed contacts, 15b are also normally closed contacts.
  • 16 is an electromagnetic contactor for a VVVF device (hereinafter referred to as a VVVF device contactor), 16 a to 16 b are normally open contacts, 16 e is a normally closed contact, and 17 is a power supply electromagnetic contactor ( Hereinafter, it is referred to as a power contactor.) Where 17a to 17c are the normally open contacts and 17d is the normally closed contact.
  • the VVVF device 1 converts the AC power into AC having a frequency lower than that of the commercial power supply R, S, T, and converts the motor 2 through the contacts 16a to 16c and the contacts 6a to 6c or the contacts 7a to 7c. Drive. That is, the low-speed circuit is closed (turned on) to form a closed circuit. Then, the frequency is gradually increased, and when the frequency of the commercial power supply R, S, T is reached, the contacts 16a to 16c are opened to disconnect the motor 2 from the VVVF device 1 at once. That is, the low-speed circuit is opened (off) to form an open circuit.
  • the ascending operation from low speed to high speed is performed as follows.
  • the ascending contactor 6 is energized in a circuit of + ⁇ 3 ⁇ 4 ⁇ 5 ⁇ 7 e ⁇ 6 ⁇ ⁇ , and the contacts 6 a to 6 d are closed.
  • Contact 6e opens. Closing of contact 6d energizes run relay 8, closing contacts 8a and 8b.
  • speed changeover switch 9 is tilted to the low speed side, + ⁇ 8a ⁇ 9 ⁇ 10 ⁇ —
  • the low-speed relay 10 is energized, and is self-held by closing the contact 10a.
  • the contact 10b is closed, the contacts 10d to 10f are opened, and the timed contact 10c is closed after a certain time period.
  • the VVVF device operating relay 14 is energized in the circuit of + ⁇ 8 b ⁇ 10 b ⁇ 15 b ⁇ l 4 ⁇ ⁇ , and the contact 14 a is closed and the contact 14 b is opened.
  • the contact 14a is closed
  • the VVVF contactor 16 is energized in a circuit of + ⁇ 8b ⁇ 14a ⁇ 13c ⁇ 17d ⁇ l6 ⁇ ⁇ , and the contacts 16a to l6d are closed.
  • the contact 16e is opened.
  • the contact 10c is closed and the contact 16d is closed, the low-speed start command is output, the VVVF device 1 is started, and the output frequency is lower than the commercial power supply R, S, T. Stand up to frequency.
  • the electromagnetic brake (not shown) is released, and the motor 2 starts low-speed ascending operation.
  • the high-speed relay 11 is energized in the circuit of + ⁇ 8a ⁇ 9 ⁇ l1 ⁇ ⁇ , and the contacts 11 a to l 1d are closed. Contacts 1 1 e open. Opening the contacts 11e deactivates the low-speed relay 10, contacts 10a to 10c are opened, and contacts 10d to 10f are closed. The high-speed relay 11 is now self-maintained. In addition, the closing of the contact l ib keeps the VVVF device operation relay 14 in the energized state.
  • the timed contact 10c opens and the timed contact 11d closes, so a high-speed operation command is output, and the output frequency of the VVVF device 1 increases toward the same frequency as the commercial power supplies R, S, and T.
  • the motor 2 accelerates.
  • the output frequency of the VVVF device 1 becomes equal to the frequency of the commercial power supply R, S, T
  • the contact 12 is closed
  • the power frequency detection relay 13 is energized
  • the contact 13a is closed
  • the contacts 13b and 13b are closed.
  • Timed contact 13c opens.
  • the VVVF device operation relay 14 is deenergized, the contact 14a is opened, and the contact 14b is closed.
  • the contactor 16 for connecting the VVVF device is deactivated, the contacts 16a to 16d are opened, and the contact 16e is closed.
  • the switching time setting relay 15 is energized in a circuit of + ⁇ 8b ⁇ 1 3a ⁇ llc ⁇ 10e ⁇ 14b ⁇ l5 ⁇ —, and the timed contact 15 Closed, + ⁇ 8 b ⁇ 15
  • the power contactor 17 is energized in the circuit a ⁇ l 6 e ⁇ l 7 ⁇ —, the contacts 17 a to l 7 c are closed, and the contacts 17 d are open.
  • the motor 2 is accelerated by the VVVF device 1 to the frequency of the commercial power supply R, S, T, is once cut off from the VVVF device 1 and idles, and is then connected to the commercial power supply R, S, T to operate at high speed. become.
  • FIGS. 4 and 5 show voltage waveforms at the time of switching between the contactor 16 for the VVVF device and the contactor 17 for the power supply.
  • the phase difference between the waveform of the voltage VI of the commercial power supplies R, S, and T and the waveform of the voltage V2 applied to the motor 2 is maximum.
  • the motor 2 is connected to the commercial power supplies R, S, and T, and shifts to the normal operation time ⁇ 3.
  • the switching time ⁇ 2 is secured, the switching with little switching shock can be achieved without synchronizing the output of the VVVF device 1 and the commercial power supply R, S, T as shown in the section. Operation can be achieved. This is because the idling of the motor 2 lowers the residual voltage V3, thereby reducing the switching shock.
  • This switching time T2 is desirably about 0.7 seconds, and the speed of the conveyor is also reduced.
  • the power contactor 17 is energized, and the motor 2 is connected to the commercial power sources R, S, and T and is operating at high speed.
  • the speed changeover switch 9 is tilted to the low speed side, the low speed relay 10 is energized, and the high speed relay 11 is deenergized by opening the contact 10d. Since the contact 1 Oe is opened, the switching time setting relay 15 is deenergized, and the timed contact 15 a is opened. As a result, the power contactor 17 is deenergized, and the motor 2 is disconnected from the commercial power sources R, S, and T.
  • the contact 15b is closed by the deactivation of the switching time setting relay 15.
  • the VVVF device operation relay 14 is energized, and the contact 14a is closed.
  • the contact 10 f is opened, and after a certain period of time, the timed contact 13 c is closed.
  • the VVVF device contactor 16 is energized, and the motor 2 is connected to the VVVF device 1. That is, the electric motor 2 is cut off from the commercial power supplies R, S, and T, runs idle, and is then connected to the VVVF device 1.
  • the output frequency of the VVVF device 1 becomes commercial.
  • the frequency shifts from the power supply R, S, T frequencies to the lower set frequency, and the motor 2 decelerates.
  • FIG. 5 is a control circuit diagram showing a control device for a man conveyor according to the second embodiment. It should be noted that FIGS. 1, 2, 4, and 5 are also used in the second embodiment.
  • 11 f is the normally open contact of the high-speed relay 11
  • 13 d is the normally open contact of the power frequency detection relay 13
  • 13 e is the normally closed contact
  • 16 f is the normally open contact of the VVVF device contactor 16.
  • Open contacts, 16 g, 16 h are normally closed contacts
  • 176 is a normally open contact of power contactor 17
  • 17 f to 17 h is a normally closed contact
  • 21 is the residual voltage of motor 2 2 la is a normally open contact
  • 22 is a residual voltage detection relay
  • 22 a to 22 d are normally open contacts.
  • the low speed relay 10 is energized and high speed relay 11 is deactivated.
  • the contacts 11f are opened, and the power contactor 17 is deenergized.
  • the contact 14a is open, the contactor 16 for the VVVF device is also deenergized, and the motor 2 runs idle.
  • the contacts 17 h and 16 h are closed, and the residual voltage detector 21 starts detecting the residual voltage.
  • the contact 21 a closes, the residual voltage detection relay 22 is energized, and the contacts 22 a to 22 d close.
  • the VVVF device operation relay 14 is energized, and the contact 14a is closed.
  • the VVVF device contactor 16 is energized, and the motor 2 is switched to the VVVF device 1.
  • the residual voltage detecting relay 22 is held by closing the contact 16f.
  • the electric motor 2 is cut off from the commercial power supplies R, S, and T and idles, and then connected to the VVVF device 1.
  • the timed contact 11d opens after a certain time from the deactivation of the high-speed relay 11, and the timed contact 10c closes after a certain time after the low-speed relay 10 is energized, the output frequency of the VVVF device 1 becomes commercial. From the frequencies of power supplies R, S, and T, the frequency shifts to a lower set frequency, and motor 2 decelerates.
  • FIG. 7 is a power circuit diagram of a control device for a man conveyor according to the third embodiment
  • FIG. 8 is a control circuit diagram
  • FIG. 9 is a voltage waveform diagram at the time of power supply switching.
  • FIG. 2 is also used in the third embodiment.
  • 14 c is a normally open contact of the VVVF device operation relay 14
  • 15 c is a normally open contact of the switching time setting relay 15
  • 16 i is a normally closed contact of the VVVF device contactor 16
  • 17 i is a power supply
  • Contactor 17 is a normally closed contact
  • 23 is a load contact electromagnetic contactor (hereinafter referred to as negative It is called a load contactor.
  • 23a to 23c are normally open contacts
  • 23d to 23e are normally closed contacts
  • 24 is a release time setting relay
  • 24a is a normally closed timed contact
  • 25 is a contact 23a to 23
  • These are load devices such as resistors and reactors that are connected to and detachable from the electric motor 2 via c, and are the same as those in FIGS. 1 and 3 except for the above.
  • the contact 1 Ob is closed, and when the speed changeover switch 9 in FIG. 2 is turned to the high-speed side from this state, the high-speed relay 11 is energized as described above, and the contact 1 1 b is turned on. To close, the VVVF device activation relay 14 remains energized. On the other hand, since the high-speed relay 11 is energized in the VV VF device 1, its output frequency increases toward the same frequency as the commercial power sources R, S, and T, and the motor 2 accelerates.
  • the power supply frequency detection relay 13 When the two frequencies become equal, the power supply frequency detection relay 13 is energized, the contact 13a is closed, and the timed contact 13c is opened. By opening the timed contacts 13c, the start contactor 16 is deenergized, and the motor 2 is disconnected from the VVVF device 1 and runs idle.
  • the contact 13a When the contact 13a is closed, the switching time setting relay 15 is energized, and the contact 15c is closed (at this time, the contact 14c is open.), So that + ⁇ 8b ⁇ 1 In the circuit of 5 c ⁇ 16 i ⁇ 17 i ⁇ 24 a ⁇ 23 ⁇ —, the load contactor 23 is energized and the contacts 23 a to 23 c are closed.
  • the load device 25 is connected to the electric motor 2, so that the residual voltage of the electric motor 2 decreases.
  • the contact 15c is closed, the disconnection time setting relay 24 is energized, and after a certain time, the timed contact 24a is opened, so that the load contactor 23 is deenergized and the contacts 23a to 23c Is released, whereby the load device 25 is disconnected from the electric motor 2.
  • the timed contact 15a is closed after a certain time by the bias of the switching time setting relay 15, so that the power contactor 17 is biased and the contacts 17a to 17c are closed.
  • FIG. 9 shows the voltage waveforms when switching between the contactor 16 for the VVVF device and the contactor 17 for the power supply. Show. Due to the connection of the load device 25, the residual voltage of the motor 2 decreases and the switching shock decreases after a certain time T5, as shown in part C.
  • the load device 25 is disconnected when the time-out of the disconnection time setting relay 24 expires. However, this is performed by using the residual voltage detection device 21 described above. Obviously, the voltage may be cut off when the voltage falls below a predetermined value. In this way, since the energy of the electric motor 3 is actively consumed by using the load device 25, the switching time can be shortened, and the switching shock can be reduced.
  • FIGS. 10 and 11 a control device for a man-comparator according to a fourth embodiment of the present invention will be described with reference to FIGS. 10 and 11.
  • FIG. FIG. 10 is a power circuit diagram of a control device for a man conveyor according to the fourth embodiment
  • FIG. 11 is a control circuit diagram. Note that FIGS. 2 and 9 are also used in the fourth embodiment.
  • 2 A is an induction motor (drive motor) for driving the conveyor connected to the motor 2 via the contacts 23 a to 23 c
  • 11 g is a normally open contact point of the high-speed relay 11
  • 13 f is a normally open contact of the power frequency detection relay 13
  • 23 d is a normally open contact of the load contactor 23, and is the same as in FIGS. 1 and 8 except for the above.
  • This embodiment is for controlling a man conveyor having a plurality of electric motors 2 and 2A, and is similar to the third embodiment.
  • the energizer of the VVVF device contactor 16 drives the man conveyor by only a part of the plurality of motors 2 and 2A.
  • the switching operation to high-speed operation occurs and the output frequency of VVVF device 1 becomes the same as the frequency of commercial power supply R, S, T, timed contact 13c opens and contactor 16 for VVVF device becomes The motor 2 is deenergized and the motor 2 is disconnected from the VVVF device 1.
  • the contacts 11 g and 13 f are closed, so the load contactor 23 is energized and the contact 23 a to 23c are closed and the motor 2A is connected. Also, when the contact 23d is closed, the contact 16e is closed, so the power contactor 17 is energized and the motor 2, 2A Is connected to the commercial power supply R, S, T. Then, the load connection contactor 23 continues to be energized, so that the motors 2 and 2 ⁇ ⁇ operate at high speed.
  • the voltage waveform at the time of this switching is as shown in FIG. 9.
  • the speed is switched by the manual speed switching switch 9.
  • the speed can be switched automatically.
  • a passenger detection device (not shown) that detects the presence or absence of a man conveyor user will be installed.
  • the VVVF device 1 When it is detected that there is no user, the VVVF device 1 generates an alternating current having a frequency lower than that of the commercial power supplies R, S, and T to operate the motor 2 at low speed, and detects that there is a user in this state.
  • the motor 2 When the frequency gradually increases and reaches a value close to the frequency of the commercial power supply R, S, T, the motor 2 is connected to the commercial power supply R, S, T to operate at high speed.
  • the present invention is not limited to the above embodiments, and each embodiment may be appropriately changed within the scope of the technical idea of the present invention, in addition to those suggested in each embodiment. It is clear. Further, the number, position, shape, and the like of the above-mentioned constituent members are not limited to the above-described embodiment, and can be set to a suitable number, position, shape, and the like for implementing the present invention. In each drawing, the same components are denoted by the same reference numerals.
  • the control device for a conveyor disconnects the drive motor connected to the converter connected to the commercial power supply from the converter when switching from low-speed operation to high-speed rotation. After that, the motor is directly connected to the commercial power source with the residual voltage of the motor lowered. Furthermore, even when switching from high-speed operation to low-speed operation, the drive motor directly connected to the commercial power supply is disconnected from the commercial power supply, and then the motor is connected to the above-mentioned converter with the residual voltage of the motor reduced. Connect.
  • This is useful as a control device for a man-conveyor that can achieve switching operation between low-speed operation and high-speed operation with an inexpensive configuration without switching shock or noise.
  • control device for a man conveyor disconnects the driving motor from the converter when switching from low-speed operation to high-speed operation, and connects to a commercial power supply after a certain period of time. Furthermore, when switching from high-speed operation to low-speed operation, the drive motor is disconnected from the commercial power supply and connected to the converter after a certain period of time. This is useful as a control device for a man-conveyor that can achieve a switching operation between low-speed operation and high-speed operation with an inexpensive configuration without switching shock or noise.
  • a control device for a man conveyor includes a residual voltage detection device that detects a residual voltage of a driving motor. Then, at the time of switching from low-speed operation to high-speed operation, the driving motor is disconnected from the converter, and after it is detected that the residual voltage has become equal to or lower than a predetermined value, the motor is connected to a commercial power supply. Further, at the time of switching from high-speed operation to low-speed operation, the driving motor is disconnected from the commercial power supply, and after detecting that the residual voltage has become equal to or lower than a predetermined value, the driving motor is connected to the converter.
  • This is useful as a control device for a man-conveyor that can achieve a switching operation between low-speed operation and high-speed operation with an inexpensive configuration without switching shock or noise.
  • a control device for a man conveyor includes a load device for reducing a residual voltage of a driving motor. Then, after the motor is disconnected from the converter or the commercial power source, the motor and the load device are connected. As a result, the residual voltage of the motor can be positively reduced, so that the switching time is short and the switching This is useful as a control device for a man conveyor that can reduce the work load.
  • control device for a conveyor includes, when switching from low-speed operation to high-speed operation, a part of the plurality of driving motors connected to the converter connected to the commercial power supply. However, all the motors are directly connected to the commercial power supply with the residual voltage of the motor lowered after disconnecting from the converter. Furthermore, even when switching from high-speed operation to low-speed operation, all of the plurality of drive motors directly connected to the commercial power supply are disconnected from the commercial power supply, and then, when the residual voltage of the motors is reduced, multiple motors are used. Is connected to the conversion device. As a result, the residual voltage of the motor can be reduced at an early stage, so that it is useful as a control device for a man conveyor that can reduce switching shock.
  • control device of the conveyor is configured such that when switching from low-speed operation to high-speed operation, a part of the plurality of driving motors is cut off from the converter and a certain period of time later, all of the plurality of motors are commercialized. It connects to the power supply. Furthermore, when switching from high-speed operation to low-speed operation, all of the motors are disconnected from the commercial power supply, and after a certain period of time, some of the motors are connected to the converter. As a result, the residual voltage of the motor can be reduced at an early stage, which is useful as a control device for a man conveyor that can reduce a switching shock.
  • a control device for a man conveyor includes a residual voltage detection device that detects a residual voltage of a driving motor.
  • a residual voltage detection device that detects a residual voltage of a driving motor.
  • a part of the plurality of drive motors is cut off from the converter, and after it is detected that the residual voltage has become equal to or less than a predetermined value, all of the plurality of motors are commercialized. Connect to power supply.
  • all of the multiple drive motors are disconnected from the commercial power supply, and after it is detected that the residual voltage has fallen below a predetermined value, some of the multiple motors are converted. It connects to the device.
  • the residual voltage of the motor can be reduced at an early stage, so that it is useful as a control device for a man conveyor that can reduce switching shock.
  • a control device for a man conveyor includes a load device that reduces residual voltages of a plurality of driving motors. Then, after a part or all of the plurality of motors are disconnected from the converter or the commercial power supply, the motor and the load device are connected. It is a continuation. As a result, the residual voltage of the motor can be positively reduced, so that the switching time is short and the switching shock is small, which is useful as a control device for a man conveyor.
  • a control device for a man conveyor includes a passenger detection device that detects the presence or absence of a user of the man conveyor. When it is detected that there is a user, the man conveyor is switched from low-speed operation to high-speed operation. Furthermore, when it is detected that there is no user, the man conveyor is switched from high-speed operation to low-speed operation.
  • a passenger detection device that detects the presence or absence of a user of the man conveyor.
  • a man conveyor according to the present invention includes the man conveyor control device described above. This is useful as a man conveyor that can switch between low-speed operation and high-speed operation without generating switching shock or noise.

Landscapes

  • Escalators And Moving Walkways (AREA)
  • Control Of Conveyors (AREA)

Abstract

Lors du passage d'un fonctionnement basse vitesse à un fonctionnement haute vitesse, un moteur électrique d'entraînement (2) connecté à un convertisseur (1) connecté à une source de courant (R, S, T) du réseau extérieur est déconnecté dudit convertisseur (1), puis, la tension résiduelle du moteur électrique (2) ayant chuté, le moteur électrique (2) est connecté directement à la source de courant (R, S, T) du réseau extérieur. En outre, lors du passage d'un fonctionnement haute vitesse à un fonctionnement basse vitesse, le moteur électrique d'entraînement (2) connecté directement à la source de courant (R, S, T) du réseau extérieur est déconnecté de la source de courant (R, S, T) du réseau extérieur, puis, la tension résiduelle du moteur électrique (2) ayant chuté, le moteur électrique (2) est connecté au convertisseur (1). Ainsi, il est possible d'obtenir une commutation entre des fonctionnements basse vitesse et haute vitesse à l'aide d'un système peu coûteux et sans choc ou bruit de commutation.
PCT/JP2001/005459 2001-01-22 2001-06-26 Unite de commande pour tapis roulant de transport de personnes, et tapis roulant de transport de personnes WO2002057174A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP01941256.8A EP1394097B1 (fr) 2001-01-22 2001-06-26 Unite de commande pour tapis roulant de transport de personnes, et tapis roulant de transport de personnes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001-12784 2001-01-22
JP2001012784A JP4757390B2 (ja) 2001-01-22 2001-01-22 マンコンべアの制御装置

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WO2002057174A1 true WO2002057174A1 (fr) 2002-07-25

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EP (1) EP1394097B1 (fr)
JP (1) JP4757390B2 (fr)
KR (1) KR100508323B1 (fr)
CN (1) CN1247434C (fr)
TW (1) TW504486B (fr)
WO (1) WO2002057174A1 (fr)

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Publication number Priority date Publication date Assignee Title
WO2022101066A1 (fr) * 2020-11-16 2022-05-19 Inventio Ag Dispositif de commande pour un système de transport de passagers

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JP2005145694A (ja) * 2003-11-19 2005-06-09 Toshiba Elevator Co Ltd 乗客コンベア
FI120194B (fi) 2008-03-14 2009-07-31 Kone Corp Kuljetinjärjestelmä
CN102556825A (zh) * 2011-12-28 2012-07-11 黄德雄 节能高效型扶梯控制系统
CN103872967A (zh) * 2012-12-17 2014-06-18 通力股份公司 变频器和具有变频器的扶梯控制装置
CN103863932B (zh) * 2012-12-17 2017-09-05 通力股份公司 变频器和具有变频器的扶梯控制装置
JP2014231428A (ja) * 2013-05-30 2014-12-11 三菱電機株式会社 マンコンベアの制御装置および制御方法
CN105151972A (zh) * 2015-08-24 2015-12-16 苏州市新瑞奇节电科技有限公司 一种公共场所用智能电动扶梯
EP3344571B1 (fr) * 2015-08-31 2021-03-17 Otis Elevator Company Unité d'entraînement de convoyeur avec initialisation de l'unité d'alimentation électrique adaptative et identification du moteur
CN110709347B (zh) * 2017-06-08 2020-10-09 三菱电机株式会社 乘客输送装置及乘客输送装置的控制装置

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JPH0382394A (ja) * 1989-08-23 1991-04-08 Mitsubishi Electric Corp 極数変換電動機の極数切替装置
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Publication number Publication date
EP1394097B1 (fr) 2017-12-20
EP1394097A4 (fr) 2007-03-21
CN1247434C (zh) 2006-03-29
EP1394097A1 (fr) 2004-03-03
TW504486B (en) 2002-10-01
JP4757390B2 (ja) 2011-08-24
CN1430575A (zh) 2003-07-16
KR20020086659A (ko) 2002-11-18
KR100508323B1 (ko) 2005-08-17
JP2002211865A (ja) 2002-07-31

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