JPH0859125A - Operation of linear motor elevator - Google Patents

Abstract

PURPOSE: To provide an operating method of a linear motor elevator capable of easily carrying out rescue driving of a passenger in a car at the time of occurrence of abnormality of a linear motor main control device. CONSTITUTION: A door control device 28 is connected to a circuit for control by a main control device 70 by an action of an abnormal time change-over means 74 at the time of occurrence of abnormality of the main control device 70 of a linear motor. Thereafter, the linear motor is energized through the door control device 28. A passenger in a cage is rescued by stopping the cage at a platform by way of carrying out rescue driving at the time of occurrence of the abnormality of the main control device 70. Consequently, rescue driving of the passenger in the cage can be carried out by simple structure of a device requiring less installation cost at the time of occurrence of abnormality of the main control device 70.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of operating a linear motor elevator, in which a counterweight is driven by a linear motor arranged in a hoistway and a car is raised and lowered via a main rope.

[0002]

2. Description of the Related Art FIGS.
FIG. 18 is a diagram showing a conventional linear motor elevator similar to that shown in Japanese Patent Publication No. 59959, FIG. 18 is a conceptual perspective view, FIGS. 19 and 20 are control circuit diagrams of the linear motor elevator of FIG. 18, and FIG. For example, Japanese Patent Publication Sho 64
FIG. 3 is a control circuit diagram showing a conventional power failure operating device for a drive inverter device in a traction elevator disclosed in Japanese Patent Publication No. 314-314. In the figure, (1) is the hoistway,
(2) is a pulley that is pivotally attached to the top of the hoistway (1), (3) is a pulley (2)
The main rope hung on the hoistway and suspended in the hoistway (1), (4) is a car suspended at one end of the main rope (3), and (5) is at the other end of the main rope (3). It is a suspended counterweight.

(6) An armature of a double-sided plate linear induction motor provided on the counterweight (5), (7) a counterweight (5)
(8) is a speed detector provided on the counterweight (5), (9) is a position detector provided on the counterweight (5), and (10) is a hoistway (1). Standing on a counterweight
Linear induction motor (6) arranged along the ascending / descending path of (5)
The secondary conductor (11) is a linear motor composed of the armature (6) and the secondary conductor (10).

(4) Roller guide shoes mounted at the upper and lower four corners of the counterweight (5), and (13) a hoistway.
A rail for a car installed upright in (1) to guide the up and down movement of a car (4), and a roller guide shoe (1) installed upright in the hoistway (1).
2) is a rail for a counterweight, which is engaged in a vertically movable manner and guides the counterweight (6) up and down. (15) is the hoistway (1)
The car shock absorber installed on the bottom of the car and installed facing the car (4), and (16) installed on the bottom of the hoistway (1) installed facing the counterweight (5) It is a shock absorber for counterweight.

Reference numeral (17) is a three-phase AC power source, and (18) is a main controller comprising a linear motor drive inverter installed on the side of the building where the hoistway (1) is installed to control the linear motor (11). Input side contact (19) that opens during normal stop, that is, braking of the braking device (7), input side converter (20) composed of a diode, converter output smoothing capacitor
(21), a regenerative energy consumption resistance (22), a regenerative energy consumption chopper element (23), an inverter bridge (24) for converting direct current into alternating current, and a control circuit (25).

Reference numeral (26) is a counterweight (5) that is balanced with the main controller (18).
With a moving cable suspended between the linear motor (11),
It supplies electric power to devices such as the speed detector (8) and sends and receives signals. (27) is a signal moving cable suspended between the main control device (18) and the door control device (28) provided on the car (4), (29) is the door control device (28), etc. It is a power supply cable to the car (4) side device.

Further, the door control device (28) includes an input side converter (30) of a door drive inverter, a smoothing capacitor (31) of the converter output, an inverter bridge (32) for converting direct current to alternating current, and a control circuit (33). It is composed by. (3
4) is a door drive electric motor driven by the door control device (28), (35) is an encoder for speed and position detection of the door drive electric motor (34), (36) is a door drive electric motor (34) and speed and position detection Is a door driving device including an encoder (35).

Reference numeral (37) is an encoder for detecting the speed and position of the linear motor (11) provided on the counterweight (5). Although not shown, a roller attached to the encoder is pressed against the rail on the building side. Then, the linear velocity and the position are detected by rolling. (38) is a sequence control unit of the main control unit (18), which outputs a direction and position command by inputting a destination floor button (not shown) of the linear motor elevator, and also outputs a door opening / closing signal to the door control unit (28). Output.

(39) is a position controller of the main controller (18), (40)
Is a speed command generator that generates a speed command based on the position value of the position controller (39), etc. (41) is the speed command value generated by the speed command generator (40) and the current speed of the linear motor (11). (42) is a speed control unit that calculates the speed deviation with a predetermined compensation element, and (43) is the sliding speed, thrust command, etc. from the motor constant of the main controller (18). A vector calculation unit for calculation, (44) is a current command generation unit for generating a three-phase thrust command according to the thrust command of the main controller (18).

Reference numeral (45) is a speed detecting section for detecting the speed from the output pulse train of the speed and position detecting encoder (37) of the main controller (18), and (46) is an output from the current command generating section (44). A matching point for obtaining the current deviation from the current command and the actual current of the linear motor (11), (47) is the current control unit that calculates the current deviation by a predetermined compensation element, and (48) is the current of the main controller (18). A pulse width modulation unit that performs pulse width modulation according to a voltage command output from the control unit (47), and (49) is a current detector that detects the current of the linear motor (11).

Reference numeral (50) is a sequence control unit of the door control device (28), which exchanges a door opening / closing command and the like with the main control device (18).
(51) is a position control unit of the door control device (28), (52) is a speed command generation unit that generates a speed command based on the residual value of the position of the position control unit (51), and (53) is a speed command generation unit. A matching point for obtaining a speed deviation between the speed command value generated at (52) and the current speed of the door drive motor (34), and (54) is a speed control unit for calculating the speed deviation by a predetermined compensation element.

(55) is a vector calculation unit for calculating a sliding speed, a thrust command, etc. from a motor constant of the door control device (28),
(56) is a current command generator that generates a three-phase thrust command according to the thrust command of the door control device (28), and (57) is an output pulse train of the speed and position detection encoder (35) of the door control device (28). Speed detector to detect speed, (58) is current command generator (56)
It is a matching point for obtaining the current deviation from the current command output from the current and the actual current of the door drive motor (34).

Reference numeral (59) is a current control section for calculating a current deviation by a predetermined compensation element, and (60) is a pulse for pulse width modulation by a voltage command of the output of the current control section (59) of the door control device (28). The width modulation unit (61) is a current detector for detecting the current of the door driving motor (34). The control circuit (2) of the main controller (18)
5), among the components of the control circuit (33) of the door control device (28),
Excluding the pulse width modulator (48) and the pulse width modulator (60),
Each component is generally composed of software by a microcomputer.

Further, in FIG. 21, (62) is a drive motor for a traction type elevator, (63) is a battery for compensating for power failure, and (64) is a battery for compensating for battery (63) for compensating for power failure in normal time. This is a diode that supplies power to the main controller (18) through the diode (64) for preventing sneak when a power failure occurs. Reference numeral (65) is a constant voltage constant frequency inverter that produces an AC power supply from a DC power supply of a battery (63) for power failure compensation.

Reference numeral (66) is a contact point of a contactor that utilizes the output of the constant voltage / constant frequency inverter (65) when the three-phase AC power supply (17) fails, and (67) is a three-phase AC power supply (17) power failure. The contact of the contactor for shutting off the three-phase AC power supply (17) in the case of doing, and (68) is a multi-tap transformer for the control power supply of the control circuit (25) of the main control device (18). Reference numeral (69) is a means for switching at the time of abnormality having the contact point (66) and the contact point (67) as main parts.

In the conventional linear motor elevator as described above, the linear motor (11) is energized by the three-phase AC power supply (17) via the main controller (18) to drive the counterweight (5). It Then, the car (4) is guided by the car rail (13) through the main ropes (3) to move up and down the hoistway (1), and stops at the landing (not shown) provided in the hoistway (1). To do. Also a basket
3-phase AC power supply when facing a landing where (4) stops (17)
The door drive device (36) of the car (4) is urged by the door control device (28) to drive a door device (not shown) to open and close.

Further, in the traction type elevator shown in FIG. 21, the drive motor (62) is normally energized by the three-phase AC power source (17) via the main control unit (18) and is not shown. However, as is well known, the main rope wound around the hoisting machine is driven, and the car and the counterweight move up and down in opposite directions via the main rope. Then, at the time of power failure of the three-phase AC power supply (17), it is switched to the battery for power failure compensation (63) by the switching means (69) at the time of abnormality and the drive motor (62) is energized via the main controller (18). It is designed to operate during a power failure.

[0018]

In the conventional linear motor elevator as described above, an abnormality occurs in the main control unit (18) and the car (4) cannot be lifted up and down, and the car (4) is stopped unexpectedly. Passengers may be trapped in. In this case, loosen the braking of the braking device (7), and then the car (4) and the counterweight.
It is conceivable to lower the heavy one of (5) in that state to stop the car (4) at the landing and rescue the passengers in the car (4).

However, since the braking device (7) is provided on the counterweight (5), it is practically impossible to loosen the braking of the braking device (7), and the car ( 4) There was a problem that passengers could not be rescued.

An emergency rescue exit may be provided in the hoistway (1) on the assumption that passengers will be trapped in the car (4) when the car (4) is untimely stopped. The probability that the car (4) will stop unintentionally at the position is low and it cannot be expected to be effective, and the cost will increase due to the installation of an emergency exit.

In the traction type elevator, when the car (4) is untimely stopped, the passengers in the car (4) are rescued as described below. That is, in the elevator machine room, the braking device provided in the hoisting machine is manually operated to relax the braking. As a result, the heavier one of the car (4) and the counterweight (5) in that state is lowered. And a basket
Stop (4) at the landing and open the door.

In the power failure operation of the traction elevator of FIG. 21, the voltage for the power failure compensation battery (63) is directly input to the main circuit of the main controller (18). Further, since the constant voltage / constant frequency inverter (65) is provided and the control circuit uses the voltage once converted into the AC voltage, the cost increases. Further, when the control circuit (25) of the main controller (18) and the inverter bridge (24) are damaged, there is a problem that the operation at the time of power failure cannot be performed even when the battery is equipped.

The present invention has been made to solve the above problems, and is for a linear motor elevator that can easily perform rescue operation of passengers in a car when an operation abnormality occurs in the main controller of the linear motor. The purpose is to get the driving method.

[0024]

In a method of operating a linear motor elevator according to the present invention, a car connected to one end of a main rope wound around a pulley provided at the top of a hoistway and a car connected to the other end. A counterweight, a braking device, a speed / position detector, and a linear motor armature provided on the counterweight, and a linear motor configured by the armature and a secondary-side conductor provided in the hoistway. In a linear motor elevator equipped with a main controller for controlling a linear motor elevator configured by, a linear controller driven by the main controller is a door controller that operates when the main controller is abnormal and controls the car door drive motor. The linear motor is driven by the abnormality switching means connected to the motor.

Further, in the method of operating a linear motor elevator according to the present invention, a car connected to one end of a main rope wound around a pulley provided at the top of a hoistway and a balance weight connected to the other end. And a braking device, a speed / position detector and a linear motor armature provided on the counterweight, and a linear motor configured by the secondary side conductor provided on the armature and the hoistway. In a linear motor elevator equipped with a main control unit that controls a linear motor elevator, connect a door control unit that operates when the main control unit malfunctions to control the car door drive motor to a linear motor that is driven by the main control unit. Abnormality switching means for driving the lever linear motor, a battery device serving as a power source for the door control device in the event of an abnormality, and this battery device A DC-DC converter for converting a voltage into a DC voltage which is an input of an inverter of a door control device and a main circuit inverter bridge of a main control device when an abnormality occurs and an abnormal time switching means operates, a battery device is used as a main circuit. A means for connecting to the inverter bridge and supplying a DC voltage to the main control device via the DC-DC converter is provided, and the linear motor is driven by the door control device by the electric power stored in the battery device when an abnormality occurs.

Further, in the method of operating the linear motor elevator according to the present invention, the balance weight connected to one end of the main rope wound around the pulley provided at the top of the hoistway and the cage connected to the other end thereof. And a braking device, a speed / position detector and a linear motor armature provided on the counterweight, and a linear motor configured by the secondary side conductor provided on the armature and the hoistway. A linear motor elevator equipped with a main control device for controlling a linear motor elevator is provided with a converter device, and a main circuit power supply for supplying a common DC voltage to the inverter bridge of the main control device and the inverter of the door control device is provided. A linear motor driven by the main control unit that controls the door drive motor of the car that operates when the control unit is abnormal Linear motor elevator is operated by abnormal switching means for connecting.

Further, in the method of operating a linear motor elevator according to the present invention, a cage connected to one end of a main rope wound around a pulley provided at the top of a hoistway and a balance weight connected to the other end. And a braking device, a speed / position detector and a linear motor armature provided on the counterweight, and a linear motor configured by the secondary side conductor provided on the armature and the hoistway. A linear motor elevator equipped with a main controller that controls the linear motor elevator is connected to a linear motor that is driven by the main controller by a door controller that operates when the main controller fails and controls the car door drive motor. And a switching means at the time of abnormality for operating the linear motor elevator,
A main circuit power supply which is equipped with a converter device and supplies a common DC voltage to an inverter bridge of a main control device and an inverter of a door control device, a battery device which supplies power to the inverter when the main circuit power supply is abnormal, and this battery device D voltage to convert the voltage of DC to the DC voltage of the main circuit power supply
When the DC voltage of the output of the C-DC converter and the main circuit power supply is lost, the main circuit power supply is cut off, the battery device is connected to either the inverter bridge or the inverter of the door control device, and the main circuit is connected via the DC-DC converter. The control device is provided with a means for supplying a DC voltage, and when the abnormality occurs, either the linear motor or the door drive motor of the door control device is driven by the electric power stored in the battery device.

In addition, in the method of operating a linear motor elevator according to the present invention, a cage connected to one end of a main rope wound around a pulley provided at the top of a hoistway and a balance weight connected to the other end. A door control device for controlling a car door drive motor, a braking device provided on a counterweight, a speed / position detector and a linear motor armature, and 2 provided on the armature and the hoistway. Supplying DC power from the AC power supply provided in the main control device to the main circuit inverter bridge in the linear motor elevator equipped with the main control device for controlling the linear motor elevator composed of the linear motor composed of the secondary conductor In addition, the main circuit converter bridge that has the regenerative function of returning DC power to the AC power supply is installed, and the main circuit inverter bridge is abnormal. During the raw, the linear motor is driven by the abnormal time switching means for connecting the main circuit converter bridge disassociate the main circuit inverter bridge from the linear motor to the linear motor.

Further, in the method of operating a linear motor elevator according to the present invention, the door control device which operates when the main control device is abnormal and controls the car door drive motor is connected to the linear motor driven by the main control device. An abnormal time switching means for driving the linear motor is provided.
Then, when the linear motor is driven by either the door control device or the main circuit inverter bridge of the main control device by the operation of the abnormality switching means, the linear motor is driven by open loop control without using the speed detector.

Further, in the method of operating a linear motor elevator according to the present invention, a door control device which operates when the main control device is abnormal and controls the car door drive motor is connected to a linear motor driven by the main control device. An abnormal time switching means for driving the linear motor is provided.
When the car and the counterweight move up and down by releasing the braking device when an abnormality occurs, the drive of the linear motor is stopped by the abnormality switching means.

In addition, in the method of operating a linear motor elevator according to the present invention, a door control device which operates when the main control device is abnormal and controls the car door drive motor is connected to a linear motor driven by the main control device. An abnormal time switching means for driving the linear motor is provided.
When the car and the counterweight move up and down by releasing the braking device when an abnormality occurs, the linear motor is driven in the up-down direction by the abnormality switching means.

Further, in the method for operating a linear motor elevator according to the present invention, a door control device which operates when the main control device is abnormal and controls the car door drive motor is connected to a linear motor driven by the main control device. An abnormal time switching means for driving the linear motor is provided.
Then, in the main circuit converter bridge, the main circuit inverter bridge, the door control device, and the abnormality switching unit, the separating unit electrically separates the power circuit for driving the motor from each of the divided signal control circuits to perform signal control. The influence on other signal control circuits when an abnormality occurs in any of the circuits is prevented.

[0033]

According to the present invention as described above, the door control unit is connected to the control circuit by the main control unit and the linear motor is energized by the operation of the abnormality switching unit when an abnormality occurs in the main control unit.

Further, in the present invention as described above, the door control device for controlling the door drive motor of the car is connected to the linear motor driven by the main control device by the operation of the abnormality switching means when the main control device is abnormal. Then, the linear motor is driven. In addition, a battery device serving as a power source for the door control device in the event of an abnormality, a DC-DC converter for converting the voltage of the battery device into a DC voltage serving as an input of an inverter of the door control device, and a main circuit inverter bridge of the main control device. A means for connecting the battery device to the main circuit inverter bridge when an abnormality occurs and the abnormality switching means operating and supplying a DC voltage to the main control device via the DC-DC converter is provided, and the battery is provided when the abnormality occurs. The door control device drives the linear motor by the electric power stored in the device.

Further, in the present invention as described above, the main control device and the door control device are constituted by the inverter device, and the main circuit power source equipped with the converter device is common to the main control device and the inverter device of the door control device. DC voltage is supplied. Then, when an abnormality occurs in the main control device, the door control device is connected to the control circuit by the main control device by the operation of the abnormality switching means, and the linear motor is energized.

Further, according to the present invention as described above, the door control device for controlling the door drive motor of the car which operates when the main control device is abnormal is connected to the linear motor driven by the main control device so that the linear motor elevator can be operated. In case of an abnormality in the main circuit power supply, the main circuit power supply for supplying a common DC voltage to the inverter bridge of the main control device and the inverter of the door control device, which is equipped with a converter device, A battery device to be supplied, a DC-DC converter for converting the voltage of the battery device into a DC voltage of the main circuit power supply, and the main circuit power supply is cut off when the DC voltage of the output of the main circuit power supply is lost, so that the battery device is an inverter bridge. And the inverter of the door control device, and control via the DC-DC converter. Devices and means for feeding the DC voltage is provided on either the door driving motor of the linear motor and the door control device is driven by electric power stored in the battery apparatus when an abnormality occurs.

Further, according to the present invention as described above, the main circuit converter bridge provided in the main controller supplies the DC power from the AC power supply to the main circuit inverter bridge and has the regenerative function of returning the DC power to the AC power supply. The main circuit inverter bridge is cut off from the linear motor by the abnormality switching means when an abnormality occurs in the main circuit inverter bridge, and the main circuit converter bridge is connected to the linear motor to drive the linear motor.

Further, in the present invention as described above, the speed detector is not used when the linear motor is driven by either the door control device or the main circuit inverter bridge of the main control device by the operation of the abnormal time switching means. The linear motor is driven by open loop control.

Further, in the present invention as described above, when the car and the counterweight move up and down by releasing the braking device when an abnormality occurs, the drive of the linear motor is stopped by the abnormality switching means.

Further, in the present invention as described above, when the car and the counterweight are moved up and down by releasing the braking device when an abnormality occurs, the linear motor is driven in the up-down direction by the abnormality switching means.

Further, according to the present invention as described above, in the main circuit converter bridge, the main circuit inverter bridge, the door control device, and the abnormal time switching means, the respective signal control divided from the power circuit for driving the motor by the separating means. The circuit is electrically separated from each other, so that when any abnormality occurs in any of the signal control circuits, the influence of mutual interference on other signal control circuits is prevented.

[0042]

【Example】

Example 1. 1 and 2 are views showing an embodiment of the present invention, FIG. 1 is a conceptual front view, FIG. 2 is a control circuit diagram of the linear motor elevator of FIG. 1, and the other parts of FIG. Similar to 18, a linear motor elevator is constructed. In the figure, (1) is a hoistway, (2) is a pulley that is pivotally attached to the top of the hoistway (1), (3) is a main rope wound around the pulley (2), (4)
Is a basket suspended at one end of the main rope (3), (5) is a counterweight suspended at the other end of the main rope (3), and (6) is both sides provided at the balance weight (5). It is an armature of a flat plate linear induction motor.

Further, (7) is a braking device provided on the counterweight (5), and (10) is a standing weight on the hoistway (1).
Linear induction motor (6) arranged along the ascending / descending path of (5)
Is a linear motor constituted by the armature (6) and the secondary conductor (10), and (17) is a three-phase AC power source.

Reference numeral (70) is a main control unit composed of a linear motor drive inverter installed on the side of the building where the hoistway (1) is provided to control the linear motor (11). Main circuit power supply (20),
Converter smoothing capacitor (21), regenerative energy consumption resistance (22), regenerative energy consumption chopper element (23), main circuit inverter bridge (24) for converting direct current to alternating current and control circuit (25) It is configured.

Reference numeral (26) is a counterweight (5) that is balanced with the main control unit (70).
With a moving cable suspended between the linear motor (11),
It supplies power to devices such as the speed detection device (8) and sends and receives signals. (27) is a signal moving cable suspended between the main control device (70) and the door control device (28) provided on the car (4), and (29) is the door control device (28), etc. It is a power supply cable to the car (4) side device.

Further, the door control device (28) includes an input side converter (30) of a door drive inverter, a smoothing capacitor (31) of the converter output, an inverter bridge (32) for converting direct current to alternating current, and a control circuit (33). It is composed by. (3
4) is a door drive motor driven by the door control device (28), (35) is the speed and position detection encoder of the door drive motor (34), and (36) is the door drive motor (34) and speed and position detection. Is a door driving device including an encoder (35).

Reference numeral (71) is a contact of a contactor provided on the main circuit inverter bridge (24) side of the main controller (70), which is normally closed. Reference numeral (72) is a contact of a contactor provided on the side of the inverter bridge (32) of the door control device (28), which is normally open. Reference numeral (73) is a contact of a contactor provided on the side of the inverter bridge (32) of the door control device (28), which is normally closed. (74) is contact (71), contact (72) and contact (7
This is a means for switching in the event of an abnormality, with 3) as the main part.

In the linear motor elevator constructed as described above, the linear motor (11) is normally energized by the three-phase AC power source (17) via the main control unit (70) to balance the balance (5 ) Is driven. Then, the car (4) is guided by the car rail (13) through the main ropes (3) to move up and down the hoistway (1), and stops at the landing (not shown) provided in the hoistway (1). To do. Further, when the car (4) faces the landing where it stops, the door drive device (36) of the car (4) is urged by the three-phase AC power supply (17) via the door control device (28). (Not shown) is driven to open and close.

When an abnormality occurs in the main controller (70), the abnormality switching means (74) operates to open the contact (71), close the contact (72), and close the contact ( 73) opens. As a result, the door control device (28) is connected to the control circuit by the main control device (70), and the door control device (28) urges the linear motor (11) to drive the counterweight (5). To be done. Then, the car (4) is connected to the car rail (1
It is guided by 3) to ascend and descend the hoistway (1) and stops at the landing provided in the hoistway (1).

In this way, at least the car (4) and the counterweight (5) in that state are lowered, the car (4) is stopped at the landing, and the passengers in the car (4) are rescued. It Therefore, it is possible to obtain a linear motor elevator operating device capable of performing rescue operation of passengers in the car with a simple device configuration that requires less equipment cost.

The moving cable (26) is a counterweight (5) from the hoistway (1) side via the car (4) as shown in FIG.
Is hung on. The circuit from the door controller (28) is connected to the moving cable (26) that feeds the armature (6) of the linear induction motor from the main controller (70) to the car (4) shown in FIG.
Are connected at a connection point A provided on the. As a result, the door control device (28) can be changed to a control circuit by the main control device (70) by the switching means (74) at the time of an abnormality without artificially operating the braking device (7) of the counterweight (4). Can be connected. Further, although the above embodiment has been described with respect to the linear motor elevator, this configuration can be easily applied to a known traction type elevator as shown in FIG. 21 described above, and the same operation as this embodiment can be obtained. You can

Example 2. 3 and 4 are views showing another embodiment of the present invention, FIG. 3 is a control circuit diagram, and FIG. 4 is a flow chart for explaining an operating condition of a linear motor elevator controlled by the control circuit diagram of FIG. A linear motor elevator is configured similarly to FIG. 18 except for FIGS. 3 and 4. In the figure, (70) is a main control unit consisting of a linear motor drive inverter installed on the building side where the hoistway (1) is installed to control the linear motor (11),
6) is a moving cable suspended between the main controller (70) and the counterweight (5), and (27) is the main controller (70) and the door controller () installed on the car (4). It is a signal transfer cable suspended between 28).

Further, (32) is an inverter bridge provided in the door control device (28) for converting direct current into alternating current, (33) is a control circuit constituting a main part of the door control device (28), (34) Is a door drive motor driven by a door control device (28), (3
Reference numeral 5) is a speed and position detection encoder of the door drive motor (34), and (36) is a door drive device including the door drive motor (34) and speed and position detection encoder (35). Reference numeral (37) is an encoder for detecting the speed and position of the linear motor (11), which detects the linear speed and position by pressing the roller against the rail on the building side and rolling it.

Reference numeral (71) is a contact of a contactor provided on the main circuit inverter bridge (24) side of the main controller (70), which is normally closed. Reference numeral (72) is a contact of a contactor provided on the side of the inverter bridge (32) of the door control device (28), which is normally open. Reference numeral (73) is a contact of a contactor provided on the side of the inverter bridge (32) of the door control device (28), which is normally closed. (74) is contact (71), contact (72) and contact (7
This is a means for switching in the event of an abnormality, with 3) as the main part.

Reference numeral (50) is a sequence controller of the door controller (28), which exchanges a door opening / closing command and the like with the main controller (70). (51) is a position control unit of the door control device (28), (52) is a speed command generation unit that generates a speed command based on the residual value of the position of the position control unit (51), and (53) is a speed command generation unit. A matching point for obtaining a speed deviation between the speed command value generated at (52) and the current speed of the door drive motor (34), and (54) is a speed control unit for calculating the speed deviation by a predetermined compensation element.

(55) is a vector calculation unit for calculating the sliding speed, thrust command, etc. from the motor constants of the door control unit (28), and (5)
6) is a current command generator that generates a three-phase thrust command according to the thrust command of the door control device (28), (57) is the speed of the door control device (28), the speed from the output pulse train of the position detection encoder (35) A speed detection unit (58) for detecting the current deviation is a matching point for obtaining a current deviation from the current command output from the current command generation unit (56) and the actual current of the door drive motor (34).

Reference numeral (59) is a current control section for calculating the current deviation by a predetermined compensation element, and (60) is a pulse for pulse width modulation by a voltage command of the output of the current control section (59) of the door control device (28). The width modulation unit (61) is a current detector for detecting the current of the door driving motor (34). Reference numeral (75) is an internal changeover switch provided between the current control section (59) and the pulse width modulation section (60) and having a contact which is normally closed and a contact which is normally closed.

(76) is an abnormal speed command generator connected to the sequence control unit (50), and (77) is an abnormal speed command generator (7).
It is provided between 6) and the internal changeover switch (75) and controls the motor terminal voltage V and the frequency command f so that V / f = constant based on the speed command of the speed command generator (76) at abnormal time. V / f = constant control unit.

In the linear motor elevator constructed as described above, the linear motor (11) is normally energized by the three-phase AC power supply (17) via the main control unit (70) to balance the balance (5 ) Is driven. Then, the car (4) is guided by the car rail (13) through the main ropes (3) to move up and down the hoistway (1), and stops at the landing (not shown) provided in the hoistway (1). To do. Further, when the car (4) faces the landing where it stops, the door drive device (36) of the car (4) is urged by the three-phase AC power supply (17) via the door control device (28). (Not shown) is driven to open and close.

When an abnormality occurs in the main control unit (70), the abnormality switching means (74) operates to open the contact (71), close the contact (72), and close the contact ( 73) opens. As a result, the door control device (28) is connected to the control circuit by the main control device (70), and the door control device (28) urges the linear motor (11) to drive the counterweight (5). To be done. Then, the car (4) is connected to the car rail (1
It is guided by 3) to ascend and descend the hoistway (1) and stops at the landing provided in the hoistway (1).

Therefore, although detailed description is omitted, FIG.
Also, it is apparent that the embodiment shown in FIG. 4 and the embodiment shown in FIG. In the rescue operation in which the linear motor (11) is driven by the door control device (28), the speed and position detection encoder for the linear motor (11)
Door drive motor by switching the output of (37) with a relay (34)
By inputting, the operation by the control circuit in FIG. 20 described above is possible.

In general, the operating condition such as the riding comfort of the elevator during the rescue operation does not pose a problem. When a linear induction motor is used as the linear motor (11), it is the same as a normal induction motor. Moreover, it is possible to drive by open loop V / f constant control or the like without using encoder feedback. Accordingly, the abnormal speed command generator (76) in the door control device (28), and the motor terminal voltage V and the frequency command f become V / f = constant based on the speed command of the abnormal speed command generator (76). V / f = constant control unit (77) to control
By (75), the input to the pulse width modulation section (60) is switched between abnormal time and normal time.

Such a door control device (28) has a control circuit.
Of the constituent elements of (33), the pulse width modulation section (60) is generally excluded, and the constituent elements are composed of software by a microcomputer. Therefore, in the rescue operation in which the linear motor (11) is driven by the door control device (28), considering that the door drive motor (34) is not energized, the internal changeover switch (75) and the abnormal speed command generator (76) ) And V / f = constant control unit (77) can be easily added to the control program.

The rescue operation for driving the linear motor (11) by the door control device (28) according to the above control program will be described with reference to the flowchart shown in FIG. That is, in step (101), the main controller (70)
If there is no abnormality, the linear motor elevator is normally operated and the process proceeds to step (102), where the door is opened and closed by the door control device (28) according to a predetermined door control program. If there is an abnormality in the main control unit (70) in step (101), the process proceeds to step (103), if there is no need for rescue operation, the process proceeds to step (102), and if there is a rescue operation, step (104) ).

Abnormality switching means in step (104)
If the contact (72) of (74) is open, the process proceeds to step (102), and if it is closed, the process proceeds to step (105). Step (10
In 5) V / f = constant control unit (77) linear motor
(11) is driven, and the process proceeds to step (106). Step (106)
If the car (4) has arrived at the specified rescue operation floor, proceed to step (102) .If the car (4) has not arrived at the specified rescue operation floor, return to step (103) to rescue. Operation is continued.

Example 3. 5 and 6 are views showing another embodiment of the present invention, in which FIG. 5 is a conceptual front view and FIG.
5 is a control circuit diagram of the linear motor elevator of FIG.
A linear motor elevator is constructed similarly to FIG. 18 except for FIG. In the figure, the same reference numerals as those in FIGS. 1 and 2 indicate corresponding parts, and (78) is an overall control device in which the main control device (70) and the door control device (28) in FIG. It is installed on the building side where (1) is installed.
Reference numeral (79) is a control circuit for the linear motor (11) and the door drive motor (34), and (80) is a movement cable for doors provided between the integrated control device (78) and the door drive device (36). .

In the linear motor elevator constructed as described above, the door moving cable (80) and the like are installed as shown in FIG. 5, and the general control unit (78) is normally operated by the three-phase AC power supply (17). The linear motor (11) is urged via the to drive the counterweight (5). Then, the car (4) is guided to the car rail (13) through the main rope (3) and the hoistway (1).
Up and down, and a landing (not shown) provided in the hoistway (1)
Stop at. Further, when the car (4) faces a landing where the car stops, the door drive device (36) of the car (4) is urged by the three-phase AC power supply (17) via the integrated control device (78). (Not shown) is driven to open and close.

When an abnormality occurs in the main circuit inverter bridge (24) for converting direct current to alternating current on the linear motor (11) side, the abnormal time switching means (74) operates and the contact (7
1) opens, contact (72) closes, and contact (73) opens.
This allows the linear motor (1) to pass through the inverter bridge (32) that converts DC from AC on the door drive motor (34) side to AC.
1) is urged and the counterweight (5) is driven to perform rescue operation. Then, the car (4) is guided by the car rail (13) through the main ropes (3) to move up and down the hoistway (1), and the hoistway (1)
Stop at the landing provided at.

Therefore, although detailed description is omitted, FIG.
Also, it is apparent that the embodiment shown in FIG. 6 and the embodiment shown in FIG. Further, in the embodiment of FIGS. 5 and 6, the interlock wiring such as the abnormal time switching means (74) can be simplified, and the manufacturing cost can be reduced as compared with the embodiment of FIGS. 1 and 2. In addition, in the embodiment of FIGS. 5 and 6, power is supplied to the door drive device (36) from the integrated control device (78) installed on the side of the building where the hoistway (1) is provided, and a long door movement cable (80 ). However, the amount of power supplied to the door drive device (36) is small, and no trouble occurs even if the power supply distance is long.

Example 4. FIG. 7 is also a control circuit diagram of a linear motor elevator showing another embodiment of the present invention,
A linear motor elevator is configured similarly to FIG. 18 except for FIG. 7. In the figure, the same reference numerals as those in FIG. 2 indicate the corresponding parts, and (81) is a constant current charging circuit for the battery device (82), which can be simply used as a resistor as a current limit. (83) is a diode for supplying power to the main circuit of the battery device (82), (84) is a DC-DC converter, and (85) and (86) are braking devices (5) provided on the counterweight (5) respectively. It is a switching contact of the brake excitation circuit in 7) and it closes when the three-phase AC power supply (17) fails.

In the linear motor elevator constructed as described above, all DC power supplies of the door control device (28) are supplied from the output voltages P, N of the input side converter (30) to the DC device via the battery device (82). -If power is supplied from the DC converter (84), the linear motor (1
1) and the door drive device (36) can be energized.

When an abnormality occurs in the main circuit inverter bridge (24) for converting direct current to alternating current on the side of the linear motor (11), the abnormal time switching means (74) operates and the contact (7
1) opens, contact (72) closes, and contact (73) opens.
This allows the linear motor (1) to pass through the inverter bridge (32) that converts DC from AC on the door drive motor (34) side to AC.
1) is urged and the counterweight (5) is driven to perform rescue operation. Then, the car (4) is guided by the car rail (13) through the main ropes (3) to move up and down the hoistway (1), and the hoistway (1)
Stop at the landing provided at. Therefore, although detailed description is omitted, it is clear that the embodiment of FIG. 7 can also obtain the same operation as that of the embodiment of FIGS.

When the three-phase AC power supply (17) fails, the switching means (74) at the time of abnormality operates to open the contact (71),
2) is closed, the contact (73) is open, and the switching contact (8
5) and (86) are closed, and the linear motor (11) and the door drive device (36) are energized by the battery device (82). And
The heavy one of the car (4) and the counterweight (5) in that state can be lowered to stop the car (4) at the landing and open the door to rescue the passengers in the car (4). Therefore, when the three-phase AC power supply (17) is cut off, it is possible to obtain a linear motor elevator operation device capable of rescue operation of passengers in the car with a simple device configuration that requires less equipment cost.

The main controller (70) and the door controller (28)
The capacity of the normal drive is smaller in the door drive device (36) than in the linear motor (11). Therefore, the door control device
It is necessary to increase the capacity of the door control device (28) in order to drive the linear motor (11) by the device (28) in the same manner as in normal times. However, by lowering the heavier one of the car (4) and the counterweight (5) in that state, the capacity of the door control device (28) is not particularly increased and the three-phase AC power supply (17) It is possible to perform rescue operation of passengers in the car during a power failure.

When the weights of the car (4) and the counterweight (5) are balanced, the capacity of the door control device (28) is set on the assumption that the rescue operation of passengers in the car is performed at a low speed. Set. As a result, the capacity of the door control device (28) can be suppressed from increasing, and the manufacturing cost can be reduced.

Example 5. FIG. 8 is also a control circuit diagram of a linear motor elevator showing another embodiment of the present invention.
A linear motor elevator is configured similarly to FIG. 18 except for FIG. In the figure, the same reference numerals as those in FIGS. 5 and 6 indicate corresponding parts, and (81) is a constant current charging circuit for the battery device (82), which can be simply used as a resistor for current limiting. (83) is a diode for supplying power to the main circuit of the battery (82), and (84) is a DC-DC converter. (86
1) is a battery device when an abnormality occurs in the main circuit inverter bridge (24) and the abnormality switching means (74) operates.
Inverter bridge (82) via DC-DC converter (84)
It is a connection means at the time of an abnormality connected to (32).

In the linear motor elevator constructed as described above, all DC power sources including the brake power source necessary for the integrated control unit (78) are supplied from the output voltages P, N of the main circuit power source (20) to the battery unit (82). ) Via DC-DC converter
If the power is supplied from (84), the linear motor (11) and the door drive device (36) can be energized when the three-phase AC power supply (17) fails. Therefore, although detailed description is omitted, it is apparent that the same operation as that of the embodiment of FIG. 7 can be obtained in the embodiment of FIG.

Example 6. FIG. 9 is also a control circuit diagram of a linear motor elevator showing another embodiment of the present invention,
A linear motor elevator is configured similarly to FIG. 18 except for FIG. 9. In the figure, the same symbols as in FIG. 8 indicate the corresponding parts, and (87) and (88) are diodes, (89) and (90), respectively.
Are DC-DC converters, (91) are linear motors (11)
(92) is a main control device corresponding to the above, (92) is a door control device corresponding to the door drive device (36), (93) and (94) are insulating means each including a photocoupler for insulating the exchange of control signals, (95) ，
(96), (97), (98) and (99) are gate circuits and changeover switches, which are generally driven by the software of the microcomputer.

The linear motor elevator constructed as described above uses a single integrated control unit (78) with the main circuit power supply (20) of the main control unit (70) and the door control unit (28) in FIG. 2 being common. 9 is a modification of the embodiment of FIG. 8 for controlling. That is, the control circuit (79) of FIG.
The main control unit (91) corresponding to 1) and the door control unit (92) corresponding to the door drive unit (36) are completely separated and independently configured. Furthermore, the DC-DC converter (84) of FIG. 8 is used for the main controller (91) DC-DC converter (90) and the door controller (92).
The DC-DC converter (89) is separated, and the transmission / reception of signals of each control circuit is insulated by insulating means (93), (94).

As a result, even if an abnormality occurs in the main control device (91), the main circuit inverter bridge (24) on the side of the linear motor (11) and the DC-DC converter (90), the door control device
(92) The linear motor (11) and the door drive device (36) can be energized through the operation of the abnormality switching means (74). Therefore, although detailed description is omitted, it is clear that the same operation as that of the embodiment of FIG. 7 can be obtained in the embodiment of FIG.

Further, a gate circuit generally driven by software of a microcomputer, changeover switches (95), (96), (97), (98), (99), and a main circuit contactor contact (721) are provided. By providing the main controller
(91) energizes the door drive device (36) or operates the linear motor (11) using the door control device (92) and the main circuit inverter bridge (24) on the linear motor (11) side. It is possible to perform various rescue operations in the event of an abnormality depending on the location of the failure.

Example 7. FIG. 10 is also a control circuit diagram of a linear motor elevator showing another embodiment of the present invention, and the linear motor elevator is configured similarly to FIG. 18 except for FIG. In the figure, the same reference numerals as those in FIG. 7 indicate corresponding parts, and (100) is a main controller corresponding to the linear motor (11).

(101) is a main circuit converter bridge comprising a pulse width modulation converter which constitutes the converter side of the main controller (100), and has the same constituent elements as the main circuit inverter bridge (24). The converter bridge (101) is capable of input power factor = 1, power regeneration and the like. (Ten
2) is a control circuit of the main control unit (100), which is a battery unit (8
2) Power is supplied through the DC-DC converter (103). (104)
Is a reactor provided for the main circuit converter bridge (101).

In the linear motor elevator constructed as described above, the linear motor (11) is normally energized by the three-phase AC power supply (17) via the main control unit (100) to balance the balance (5). Is driven. And the car through the main ropes (3)
(4) is guided by the car rail (13) to move up and down the hoistway (1). Then, when an abnormality occurs in the main circuit inverter bridge (24) of the main controller (100), the abnormality switching means (74) operates to open the contact (71) and the contact (73), and the contact (72) becomes Close. Thereby, the main circuit converter bridge (101),
The linear motor (11) is energized by the battery device (82).

Therefore, although detailed description is omitted, FIG.
It is obvious that the same effect as in the embodiment of FIG. In addition, in this case, the linear controller (28) is energized by the door control device (28) at the time of the abnormality shown in FIG. 2, whereas the current capacity of the main circuit converter bridge (101) is the normal main control device (100). ), The current capacity is almost the same as that of the main circuit inverter bridge (24). Strictly speaking, the input side current capacity is small because the power supply voltage is higher than the terminal voltage of the linear motor (11). However, even in this case, the main circuit converter bridge (1
The linear motor (11) can be easily driven by 01).

The main controller in the embodiment of FIG.
In the rescue operation when the main circuit inverter bridge (24) of (100) has an abnormality, the capacity of the battery device (82) can be reduced by operating as follows. That is, energy is regenerated from the linear motor (11) to the main controller (100) by lowering the heavier one of the car (4) and the counterweight (5) in that state. And
The energy is charged into the battery device (82) through the constant current charging circuit (81).

Example 8. FIG. 11 is also a control circuit diagram of a linear motor elevator showing another embodiment of the present invention, and the linear motor elevator is configured similarly to FIG. 18 except for FIG. In the figure, the same reference numerals as those in FIGS. 6 and 10 indicate corresponding parts, and (100) is a main controller corresponding to the linear motor (11) and the door driving device (36), and (105), (10
6) and (107) are fuses or no-fuse breakers, respectively, which are inverter bridges of the main circuit elements in FIG.
(32) The main circuit inverter bridge (24) and the main circuit converter bridge (101) share the function of preventing influence on other circuits when damage occurs due to a vertical short circuit.

In the linear motor elevator constructed as described above, the control circuit (79) for the main controller (100), the linear motor (11) and the door drive motor (34) is normally operated by the three-phase AC power supply (17). The linear motor (11) is urged via the to drive the counterweight (5). The car (4) is guided by the car rail (13) through the main ropes (3) to move up and down the hoistway (1).

Then, when an abnormality occurs in the main circuit inverter bridge (24) of the main control unit (100), an abnormality switching means
(74) operates and contacts (71) and (73) open, and contact (7
2) is closed. This allows the main circuit converter bridge
(101), linear motor (11) by battery device (82)
Is activated. Therefore, although detailed description is omitted, in the embodiment of FIG. 11, the embodiment of FIGS.
It is clear that the same operation as that of the embodiment is obtained.

Example 9. 12 and 13 are also control circuit diagrams of a linear motor elevator showing another embodiment of the present invention. FIG. 12 is a detailed block diagram of the control circuit of the main control device shown in FIG. 10, and FIG. It is a flow chart explaining operation of a linear motor elevator which has a control circuit. Further, a linear motor elevator is configured similarly to FIG. 18 except for FIG. In the figure, the same reference numerals as those in FIG. 5 and FIG. 11 indicate corresponding parts, (108) is an inverter control unit of the linear motor (11), and (109) is a pulse width modulation converter control unit.

(110) is an abnormal speed command generator (76), V /
f = constant control unit (77) and pulse width modulation converter control unit
(109) is a sub-control unit, (111) is a separating means consisting of a photocoupler, (112), (113), (114) is a gate circuit generally driven by the software of the microcomputer, such as changeover switch Switch, switch
(112) and switch (113) are normally closed, and the linear motor
It is opened when the inverter control unit (108) of (11) is abnormal. The switch (114) is normally opened and closed when the inverter control unit (108) of the linear motor (11) is abnormal.

The linear motor elevator constructed as described above includes the inverter control unit (108) and the sub control unit (110).
DC-DC converters (89) and (90) are provided in both of the above, and the two are completely separated by the separating means (111) so that there is no mutual interference at the time of abnormality. The functional elements of each control circuit are generally configured by software of a microcomputer, and include a pulse width modulation converter control unit (109) and an abnormal speed command generation unit (7).
6) and V / f = constant control unit (77) can be built in easily.

The rescue operation for driving the linear motor (11) via the control circuit (102) of the main controller (100) will be described with reference to the flowchart shown in FIG.
That is, if there is no abnormality in the inverter control unit (108) of the linear motor (11) in step (201), step (202)
Then, the operation of the linear motor elevator is performed by the program of the pulse width modulation converter control unit (109). In step (201), the inverter control unit (10
If there is an abnormality in 8), proceed to step (203), if there is no need for rescue operation, proceed to step (202), and if there is a need for rescue operation, proceed to step (204).

Abnormality switching means in step (204)
If the contact (72) of (74) is open, proceed to step (202), and if it is closed, proceed to step (205). Step (20
In 5) V / f = constant control unit (77) linear motor
(11) is driven and the process proceeds to step (206). Step (206)
If the car (4) has arrived at the prescribed rescue operation floor, proceed to step (202) .If the car (4) has not arrived at the prescribed rescue operation floor, return to step (203) and rescue. Operation is continued.

The linear motor elevator constructed as described above is a control circuit in which the inverter control unit (108) and the sub control unit (110) are normally provided by the three-phase AC power supply (17).
Via the main controller (100) having (102), a linear motor
(11) and door drive motor (34) are energized to balance
(5) is driven. The car (4) is guided by the car rail (13) through the main ropes (3) to move up and down the hoistway (1).

When an abnormality occurs in the inverter control section (108) of the main controller (100), the abnormality switching means (74) operates to open the contact (71) and the contact (73), and the contact (72 ) Closes. As a result, the linear motor (11) is energized by the auxiliary controller (110) and the battery device (82). Therefore, although detailed description is omitted, it is apparent that the same effects as those of the embodiments of FIGS. 5 and 6 and the embodiment of FIG. 10 can be obtained in the embodiments of FIGS. 12 and 13.

Example 10. FIG. 14 is also a control circuit diagram of a linear motor elevator showing another embodiment of the present invention.
A linear motor elevator is configured similarly to FIG. 18 except for FIG. In the figure, the same reference numerals as those in FIGS. 9 and 12 indicate corresponding parts, and (115) is a switching relay.

In the linear motor elevator constructed as described above, the excitation of the coil of the braking device (7) is normally performed on the inverter control unit (108) side, and when abnormal, it is sub-controlled by the switching relay (115). Part (110). This releases the braking device (7) from either the inverter control unit (108) and sub control unit (110) of the linear motor (11) or the door control device (92) corresponding to the door drive device (36). can do.

Therefore, although detailed description is omitted, FIG.
In the embodiment of FIG. 4 also, the embodiment of FIG. 9 and FIGS.
It is obvious that the same effect as that of any of the above embodiments can be obtained.

Example 11. 15 and 16 are views showing another embodiment of the present invention, FIG. 15 is a control circuit diagram of a linear motor elevator, and FIG. 16 is a sectional view of a pinching type brake of a braking device of the linear motor elevator of FIG. A linear motor elevator is configured similarly to FIG. 18 except for FIGS. 15 and 16. In the figure, FIG.
The same reference numerals indicate corresponding parts, (116) and (117) are switching relays, (118) is the iron core of the braking device (7), and (119) is the iron core (11
8) Tensile coil springs that urge each other toward each other, and (120) is a coil of the braking device (7), and a double coil is provided.

In the linear motor elevator constructed as described above, by exciting either one of the coils (120) of the braking device (7), the iron core (118) is attracted to the braking device.
(7) is released. Then, the switching relay (116) releases the braking of the braking device (7) from either the inverter control unit (108) of the linear motor (11) or the switching relay (117) from the sub-control unit (110). be able to.

Therefore, although detailed description is omitted, FIG.
It is apparent that the same effects as those of the embodiment of FIG. 14 can be obtained in the embodiments of FIGS. Further, in the embodiment of FIGS. 15 and 16, even when the coil (120) of the braking device (7) provided on the counterweight (5) which is difficult to perform maintenance work is broken, the braking device ( The braking of 7) can be released and the rescue operation of the linear motor elevator can be performed.

Example 12. FIG. 17 is also a conceptual front view showing another embodiment of the present invention. A linear motor elevator is constructed similarly to FIG. 18 except for FIG. In the figure, the same reference numerals as those in FIGS. 1 and 2 indicate corresponding parts, and (78) is an integrated control device in which the main control device (70) and the door control device (28) in FIG. Is provided above. That is, in the embodiment of FIG. 17, the car (4) is equipped with the integrated control device (78) of the embodiment of FIG. 6 and the embodiment of FIG.

Also in the linear motor elevator constructed as described above, when an abnormality occurs in the main circuit inverter bridge (24) on the side of the linear motor (11), and when the main control device corresponding to the linear motor (11) ( When an abnormality occurs in (91), the switching means (74) at the time of abnormality operates and the inverter bridge that converts the direct current on the door drive motor (34) side to alternating current
The linear motor (11) is urged via the (32) to perform rescue operation.

Therefore, although detailed description is omitted, FIG.
It is obvious that the seventh embodiment can also obtain the same operation as the embodiment of FIG. 6 and the embodiment of FIG. In addition, FIG.
In this embodiment, only the power supply cable (29) is suspended between the hoistway (1) and the car (4). Therefore, the wiring of the entire linear motor elevator can be simplified.

Example 13. Further, as another embodiment of the present invention, a rescue operation at the time of abnormality described below is possible. That is, the pulse width modulation converter control unit (10
Also in the linear motor elevator control device having a backup circuit for driving the linear motor (11) by 9),
Similar to the backup circuit for driving the linear motor (11) by the inverter bridge (32) on the door drive motor (34) side shown in FIG. 11, the weights of the car (4) and the counterweight (5) are balanced and the braking device Rescue operation can be performed only when it does not go up and down even if (7) is released.

That is, the main circuit inverter bridge (24) for driving the linear motor (11) in the normal state and the pulse width modulation converter (101) generally have a larger current capacity on the main circuit inverter bridge (24) side. . Therefore, even in the case of an inverter for linear motor drive with a backup circuit for driving the linear motor (11) by the main circuit converter bridge (101), if the weights of both the car (4) and the counterweight (5) are not balanced. By intermittently exciting the braking device (7), it is possible to perform a rescue operation in which the heavier one of the two is lowered.

Further, only when the weights of the car (4) and the counterweight (5) are balanced, the main circuit converter bridge (1
The 01) side should carry out rescue operation. As a result, the rescue operation of the passenger in the car (4) can be performed by a simple operation.

Example 14. Further, as another embodiment of the present invention, a rescue operation at the time of abnormality described below is possible. That is, in the rescue operation at the time of power failure, as described in the operation by the inverter bridge (32) on the door drive motor (34) side, in the direction of lowering the heavier one of the car (4) and the counterweight (5). To drive. At that time, the terminal voltage of the linear motor (11) is low, and the energy is on the regeneration side. Therefore, the voltage of the battery device (82) in FIG. 12 is much lower than the voltage between the PNs at the normal time. As for the capacity, a relatively small capacity is sufficient. Further, the driving direction at the time of abnormality can be easily discriminated by the rescue worker by releasing the braking device (7), and the rescue operation of the passenger in the car (4) can be performed by a simple operation.

Further, the main control unit (100), the inverter control unit (108) and the sub control unit (110) of the control circuit are battery devices.
If it is held by the (82), it is possible to easily discriminate which of the car (4) and the counterweight (5) is heavier, by the detection value of the weighing device generally equipped in the car (4). Therefore, by storing that information, it is possible to automatically perform a rescue operation to drive the linear motor elevator in the direction in which energy is regenerated from the linear motor, and to rescue the passengers in the car (4) by a simple operation. You can

[0111]

As described above, according to the present invention, a car weight connected to one end of a main rope wound around a pulley provided at the top of a hoistway and a balance weight connected to the other end, and a balance weight. A linear motor elevator including a braking device provided on a weight, a speed / position detector, and an armature of a linear motor, and a linear motor configured by the armature and a secondary conductor provided in a hoistway. In a linear motor elevator equipped with a main control device for controlling, an abnormality switching means for connecting a door control device that operates when the main control device is abnormal to control a car door drive motor to a linear motor driven by the main control device The linear motor is driven by.

Accordingly, when an abnormality occurs in the main control unit, the operation of the abnormal time switching means causes the door control unit to be connected to the control circuit by the main control unit to urge the linear motor to stop the car at the hall. Passengers in the car are rescued. Therefore, there is an effect of enabling the rescue operation of passengers in the car with a simple device configuration that requires less equipment cost when an abnormality occurs in the main control device.

Further, as described above, the present invention has a cage connected to one end of a main rope wound around a pulley provided at the top of a hoistway and a counterweight connected to the other end of the rope.
A linear motor including a braking device, a speed / position detector, and a linear motor armature provided on the counterweight, and a linear motor configured by the armature and a secondary-side conductor provided on the hoistway. A linear motor elevator equipped with a main control device for controlling the elevator is connected to a linear motor driven by the main control device by connecting a door control device that operates when the main control device is abnormal and controls the car door drive motor. Abnormality switching means for driving the linear motor, a battery device that serves as a power source for the door control device in the event of an abnormality, and a DC- that converts the voltage of the battery device into a DC voltage that is input to the inverter of the door control device.
A battery device is connected to the main circuit inverter bridge when an abnormality occurs in the DC converter and the main circuit inverter bridge of the main control device and the abnormal time switching means operates, and a direct current is supplied to the main control device via the DC-DC converter. A means for supplying a voltage is provided, and the door control device drives the linear motor by the electric power stored in the battery device when an abnormality occurs.

As a result, when the main control unit is in an abnormal state, the door control unit for controlling the door drive motor of the car is connected to the linear motor driven by the main control unit, and the linear motor is driven by the operation of the abnormality switching unit. It Also,
A battery device that powers the door control device in the event of an abnormality,
A DC-DC converter that converts the voltage of the battery device into a DC voltage that is an input of the inverter of the door control device, and the main circuit when the abnormality occurs in the main circuit inverter bridge and the abnormality switching means operates. With the function of connecting to the inverter bridge and supplying a DC voltage to the main control unit via the DC-DC converter, the door control unit drives the linear motor by the electric power stored in the battery unit when an abnormality occurs.

Then, the car is stopped at the landing and the passengers in the car are rescued. Therefore, there is an effect of enabling the rescue operation of passengers in the car with a simple device configuration that requires less equipment cost when an abnormality occurs in the main control device. In addition, a larger amount of electric power is usually required when driving the linear motor than when driving the door drive motor of the door control device.
However, since the linear motor is driven mainly by the battery device, the capacity of the power supply cable to the door control device can be set to a small capacity corresponding to the capacity of the door driving electric motor, resulting in an effect of reducing the manufacturing cost. is there.

Further, as described above, according to the present invention, the cage connected to one end of the main rope wound around the pulley provided at the top of the hoistway and the balance weight connected to the other end,
A linear motor including a braking device, a speed / position detector, and a linear motor armature provided on the counterweight, and a linear motor configured by the armature and a secondary-side conductor provided on the hoistway. A linear motor elevator equipped with a main control device that controls the elevator is connected to a linear motor that is driven by the main control device by a door control device that operates when the main control device malfunctions to control the car door drive motor. An abnormal time switching means for driving a motor is provided, and a converter device is provided to supply a common DC voltage to an inverter bridge of a main control device and an inverter of a door control device by a main circuit power supply.

As a result, the inverter device constitutes the main control device and the door control device, and the common DC voltage is supplied to the inverter devices of the main control device and the door control device by the main circuit power source equipped with the converter device. .
Then, when an abnormality occurs in the main control device, the door control device is connected to the control circuit by the main control device by the operation of the abnormality switching means, and the linear motor is energized. Therefore,
There is an effect that a passenger in a car can be rescued by a simple device configuration that requires less equipment cost when an abnormality occurs in the main control device. In addition, the wiring of the control device can be simplified and the manufacturing cost can be reduced.

As described above, according to the present invention, the cage connected to one end of the main rope wound around the pulley provided at the top of the hoistway and the balance weight connected to the other end,
A linear motor including a braking device, a speed / position detector, and a linear motor armature provided on the counterweight, and a linear motor configured by the armature and a secondary-side conductor provided on the hoistway. A linear motor elevator equipped with a main control device that controls the elevator is connected to a linear motor that is driven by the main control device by a door control device that operates when the main control device malfunctions to control the car door drive motor. An abnormal switching means for operating the motor elevator, a main circuit power supply that is equipped with a converter device and supplies a common DC voltage to the inverter bridge of the main control device and the inverter of the door control device, and the inverter circuit when the main circuit power supply is abnormal. A battery device that supplies power and the voltage of this battery device is converted to the DC voltage of the main circuit power supply. When the DC voltage of the output of the DC-DC converter and the main circuit power supply is lost, the main circuit power supply is cut off, the battery device is connected to the main circuit inverter bridge, and either the inverter bridge or the door control device is connected via the DC-DC converter. A means for supplying a DC voltage to the inverter is provided to drive either the linear motor or the door drive motor of the door control device by the electric power stored in the battery device when an abnormality occurs.

Accordingly, the abnormal time switching means for operating the linear motor elevator by connecting the door control device which operates when the main control device is in an abnormal state to control the car door drive motor to the linear motor driven by the main control device. When,
A main circuit power supply which is equipped with a converter device and supplies a common DC voltage to an inverter bridge of a main control device and an inverter of a door control device, a battery device which supplies power to the inverter when the main circuit power supply is abnormal, and this battery device D voltage to convert the voltage of DC to the DC voltage of the main circuit power supply
When the DC voltage of the output of the C-DC converter and the main circuit power supply is lost, the main circuit power supply is cut off, the battery device is connected to the main circuit inverter bridge, and either the inverter bridge or the door control device is connected via the DC-DC converter. With the function of supplying a DC voltage to the inverter, either the linear motor or the door drive motor of the door control device is driven by the electric power stored in the battery device when an abnormality occurs.

Then, the car is stopped at the landing and the passengers in the car are rescued. Therefore, there is an effect of enabling the rescue operation of passengers in the car with a simple device configuration that requires less equipment cost when an abnormality occurs in the main control device.

Further, as described above, according to the present invention, the cage connected to one end of the main rope wound around the pulley provided at the top of the hoistway and the balance weight connected to the other end,
A door control device for controlling a car door drive motor, a braking device, a speed / position detector and a linear motor armature provided on a counterweight, and a secondary side provided on the armature and the hoistway. A linear motor elevator including a linear motor configured by a conductor and a main control device that controls a linear motor elevator configured by the conductor is provided in the main control device, and DC power is supplied from an AC power supply to a main circuit inverter bridge. , Main circuit converter bridge with regenerative function to return DC power to AC power supply,
When an abnormality occurs in the main circuit inverter bridge, the main circuit inverter bridge is cut off from the linear motor and the main circuit converter bridge is connected to the linear motor.

As a result, a main circuit converter bridge having a regenerative function for supplying DC power from the AC power supply to the main circuit inverter bridge provided in the main controller and for returning the DC power to the AC power supply is provided. When an abnormality occurs, disconnect the main circuit inverter bridge from the linear motor using the abnormality switching means,
The main circuit converter bridge is connected to the linear motor to drive the linear motor. Then, when an abnormality occurs in the main control unit, the linear motor is energized by the operation of the abnormality switching means to stop the car at the landing and rescue the passengers in the car. Therefore, there is an effect of enabling the rescue operation of passengers in the car with a simple device configuration that requires less equipment cost when an abnormality occurs in the main control device.

Further, as described above, the present invention connects the door control device, which operates when the main control device is abnormal and controls the door driving motor of the car, to the linear motor driven by the main control device. An abnormal time switching means for driving the motor is provided. Then, when the linear motor is driven by either the door control device or the main circuit inverter bridge of the main control device by the operation of the abnormality switching means, the linear motor is driven by open loop control without using the speed detection device.

Accordingly, when an abnormality occurs in the main control unit, the operation of the abnormality switching unit drives the linear motor by the open loop control without using the speed detecting device, and stops the car at the hall to rescue the passengers in the car. To be done. Therefore, there is an effect of enabling the rescue operation of passengers in the car with a simple device configuration that requires less equipment cost when an abnormality occurs in the main control device.

As described above, according to the present invention, the door control device that operates when the main control device is abnormal to control the car door drive motor is connected to the linear motor driven by the main control device. An abnormal time switching means for driving the motor is provided. When the car and the counterweight move up and down by releasing the braking device when an abnormality occurs, the drive of the linear motor is stopped by the abnormality switching means.

As a result, the car and the counterweight are moved up and down due to the difference in their weights, the car is stopped at the landing, and the passengers in the car are rescued. Therefore, there is an effect of enabling the rescue operation of passengers in the car with a simple device configuration that requires less equipment cost when an abnormality occurs in the main control device.

As described above, according to the present invention, the door control device which operates when the main control device is abnormal and controls the car door drive motor is connected to the linear motor driven by the main control device. An abnormal time switching means for driving the motor is provided. When the car and the counterweight move up and down by releasing the braking device when an abnormality occurs, the linear motor is driven in the ascending / descending direction by the abnormality switching means.

As a result, the car and the counterweight are driven in the direction due to the difference in their weights to stop the car at the landing and rescue the passengers in the car. Therefore, there is an effect of enabling the rescue operation of passengers in the car with a simple device configuration that requires less equipment cost when an abnormality occurs in the main control device.

Further, as described above, the present invention connects the door control device, which operates when the main control device is abnormal and controls the door driving motor of the car, to the linear motor driven by the main control device. An abnormal time switching means for driving the motor is provided. Then, in the main circuit converter bridge, the main circuit inverter bridge, the door control device, and the abnormality switching unit, the separating unit electrically separates the power circuit for driving the motor from each of the divided signal control circuits to perform signal control. The influence on other signal control circuits when an abnormality occurs in any of the circuits is prevented.

Thus, the separating circuit electrically separates the motor driving power circuit from each of the divided signal control circuits, and another signal control circuit when an abnormality occurs in any of the signal control circuits. It is possible to prevent the influence of mutual interference from occurring. Then, when an abnormality occurs in the main control device, the operation of the abnormality switching means connects the door control device to the control circuit by the main control device to activate the linear motor, stop the car at the hall, and pass the passengers inside the car. Is rescued. Therefore, there is an effect of enabling the rescue operation of passengers in the car with a simple device configuration that requires less equipment cost when an abnormality occurs in the main control device.

[Brief description of drawings]

FIG. 1 is a conceptual front view showing a first embodiment of the present invention.

FIG. 2 is a control circuit diagram of the linear motor elevator shown in FIG.

FIG. 3 is a control circuit diagram showing a second embodiment of the present invention.

FIG. 4 is a flowchart for explaining an operating condition of a linear motor elevator controlled by the control circuit diagram of FIG.

FIG. 5 is a conceptual front view showing a third embodiment of the present invention.

6 is a control circuit diagram of the linear motor elevator of FIG.

FIG. 7 is a control circuit diagram of a linear motor elevator showing a fourth embodiment of the present invention.

FIG. 8 is a control circuit diagram of a linear motor elevator showing a fifth embodiment of the present invention.

FIG. 9 is a control circuit diagram of a linear motor elevator showing a sixth embodiment of the present invention.

FIG. 10 is a control circuit diagram of a linear motor elevator showing a seventh embodiment of the present invention.

FIG. 11 is a control circuit diagram of a linear motor elevator showing an eighth embodiment of the present invention.

FIG. 12 is a detailed block diagram of a control circuit of the main controller of FIG. 10 showing the ninth embodiment of the present invention.

13 is a flowchart illustrating the operation of a linear motor elevator having the control circuit of FIG.

FIG. 14 is a control circuit diagram of a linear motor elevator showing a tenth embodiment of the present invention.

FIG. 15 is a control circuit diagram of a linear motor elevator showing an eleventh embodiment of the present invention.

16 is a sectional view of a pinching brake of the braking device for the linear motor elevator shown in FIG.

FIG. 17 is a conceptual front view showing an twelfth embodiment of the present invention.

FIG. 18 is a conceptual perspective view showing a conventional linear motor elevator.

FIG. 19 is a control circuit diagram of the linear motor elevator shown in FIG. 18.

20 is another control circuit diagram of the linear motor elevator of FIG. 18.

FIG. 21 is a control circuit diagram showing a power failure operating device of a drive inverter device in a known traction elevator.

[Explanation of symbols]

1 hoistway, 2 pulley, 3 main ropes, 4 car, 5 counterweight, 6 linear motor armature, 7 braking device,
8 speed detector, 9 position detector, 10 secondary conductor, 1
1 linear motor, 20 main circuit power supply, 24 main circuit inverter bridge, 25 control circuit, 28 door control device, 32 inverter bridge, 34 door drive motor,
70 main control device, 74 abnormal time switching means, 79 control circuit, 82 battery device, 84 DC-DC converter, 101 main circuit converter bridge, 102 control circuit, 108 inverter control unit, 109 converter control unit, 110 sub control unit, 111 separating means, 861
Abnormal connection means.

Claims (9)

[Claims] 1. A car weight connected to one end of a main rope wound around a pulley provided at the top of a hoistway and a counterweight connected to the other end, and a braking device provided to the counterweight, A main controller that controls a linear motor elevator that includes a speed / position detector and an armature of a linear motor, and a linear motor that includes the armature and a secondary-side conductor provided in the hoistway. In a linear motor elevator provided, by means of an abnormal time switching means for connecting a door control device that operates when the main control device is abnormal to control the car door drive motor to the linear motor driven by the main control device. A method of operating a linear motor elevator, characterized by driving the above linear motor. 2. A car that is connected to one end of a main rope that is wound around a pulley provided at the top of a hoistway and a counterweight that is connected to the other end, and a braking device that is provided on the counterweight. A main controller that controls a linear motor elevator that includes a speed / position detector and an armature of a linear motor, and a linear motor that includes the armature and a secondary-side conductor provided in the hoistway. In a linear motor elevator provided, a door control device that operates when the main control device is abnormal and controls the door drive motor of the car is connected to the linear motor driven by the main control device, and the linear motor is connected to the linear motor. Abnormality switching means to be driven, a battery device that serves as a power source for the door control device in the event of an abnormality, and the voltage of the battery device is applied to the inverter of the door control device. The DC-DC converter for converting into a DC voltage to be the input of the data and the main circuit inverter bridge of the main control device when an abnormality occurs and the abnormal time switching means operates, the battery device is connected to the main circuit inverter. And a means for supplying a DC voltage to the main control unit via the DC-DC converter connected to the bridge, and driving the linear motor by the door control unit by the electric power stored in the battery unit when an abnormality occurs. A method of operating a linear motor elevator, which is characterized in that 3. A linear motor elevator according to claim 1, further comprising a main circuit power supply which is provided with a converter device and which supplies a common DC voltage to the inverter bridge of the main control device and the inverter of the door control device. how to drive. 4. A main circuit power supply equipped with a converter device for supplying a common DC voltage to an inverter bridge of a main control device and an inverter of a door control device, and a battery for supplying power to the inverter when the main circuit power supply is abnormal. A device, a DC-DC converter for converting the voltage of the battery device into a DC voltage of the main circuit power supply, and disconnecting the main circuit power supply when the DC voltage of the output of the main circuit power supply is lost, and the battery device An inverter bridge and a door control device are connected to any of the inverters, and means for supplying a DC voltage to the main control device via the DC-DC converter is provided, and the power is stored linearly in the battery device when an abnormality occurs. It is characterized by driving either a motor or a door driving electric motor of the door control device. The method of operating a linear motor elevator according to claim 1. 5. A car connected to one end of a main rope wound around a pulley provided at the top of a hoistway and a counterweight connected to the other end, and a door control for controlling a door drive motor of the car. The device, the braking device, the speed / position detector, and the linear motor armature provided on the counterweight, and the linear motor configured by the secondary side conductor provided on the armature and the hoistway. In a linear motor elevator provided with a main controller for controlling the configured linear motor elevator, the main controller is provided with AC power from the AC power supply to the main circuit inverter bridge, and the DC power is supplied to the AC power supply. A main circuit converter bridge having a regenerative function to return the main circuit inverter bridge when an abnormality occurs in the main circuit inverter bridge. A method of operating a linear motor elevator, characterized in that the linear motor is driven by an abnormal state switching means which is disconnected from the linear motor and connects the main circuit converter bridge to the linear motor. 6. When the linear motor is driven by either the door control device or the main circuit inverter bridge of the main control device by the operation of the abnormal time switching means, the linear motor is controlled by open loop control without using a speed detector. The linear motor elevator operating method according to any one of claims 1, 2, 3, 4, and 5, characterized by driving. 7. The driving of the linear motor is stopped by the abnormal time switching means when the car and the counterweight move up and down by releasing the braking device when an abnormal condition occurs. Claim 3, Claim 4,
A method of operating a linear motor elevator according to any one of claims 5 and 6. 8. The linear motor is driven by an abnormal time switching means in the ascending / descending direction when the car and the counterweight move up and down by releasing the braking device when an abnormality occurs. 2, claim 3,
A method of operating a linear motor elevator according to any one of claims 4, 5, and 6. 9. In the main circuit converter bridge, the main circuit inverter bridge, the door control device and the abnormality switching means, by means of a separating means for electrically separating the power circuit for driving the motor and the respective divided signal control circuits. ,
6. The method according to claim 1, claim 2, claim 3, claim 4, claim 5, wherein when any abnormality occurs in any one of the signal control circuits, the influence on the other signal control circuits is prevented. The method for operating a linear motor elevator according to any one of claims 6, 7, and 8.