JP2002137875A - Device for operating elevator during power failure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device for operating an elevator during a power failure, having both a private generator and a storage battery, while avoiding an increase in the capacity of the battery. SOLUTION: The device includes a private generator 23 and a storage battery 33. Should a commercial power supply 21 for powering the elevator under normal conditions fail, the private generator 23 is started and a rescue operation is performed using the storage battery 33 until a voltage reaches a predetermined value, whereby the elevator car 1 stopped between stores is operated up or down to the story floor 11. Once the voltage of the private generator 23 has reached the predetermined value, the private generator 23 is connected to the elevator so that the elevator is operated under control of the private generator 23. The storage battery 33 is thus used as an auxiliary power supply until a power supply from the private generator 23 is established.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power failure operation device which operates by selectively connecting a private generator and a storage battery to an elevator when a commercial power supply for supplying power to the elevator fails.

[0002]

2. Description of the Related Art As a conventional elevator power failure operation device, for example, Japanese Unexamined Patent Publication No. 2-198994 discloses an alternating current system in which when an abnormality is detected in an elevator, a normal power supply is switched to a battery power supply to operate to a designated floor. An emergency emergency landing device for an elevator is disclosed. In addition, Japanese Unexamined Patent Publication
Japanese Unexamined Patent Publication No. -263342 discloses an elevator self-control operation device in which a return command is issued when power purchase is stopped and the elevator is operated at a reduced speed.

FIG. 6 shows an elevator power failure operation device provided with both a private power generator and a storage battery, which is assumed from the prior art disclosed in the above-mentioned patent publications.
No. 1 is supplied with electric power from the commercial power supply 21. Hereinafter, a and n at the end of the reference numerals indicate the machine name, and a generic name is omitted. The car 1 carries a passenger 2, is connected to the counterweight 3 by a main rope 4 wound around a hoisting machine 5, and is driven up and down by a hoisting motor 6 composed of a three-phase induction motor.

[0004] The elevator is always connected to a commercial power supply 21 and a private power generator 23 by a power switch 27 to receive electric power. Each unit element 30 is provided with a power failure rescue operation means 41, a power failure control operation means 42, and a normal operation means 43. When the commercial power supply 21 is healthy, the power switch 27 is connected to the terminal a, and Supplies power to the n-th unit. Under the commercial power source 21, the normal operation means 43 is selected by the operation means switching means 44. The normal operation means 43 closes the switch 32 each time the car 1 is driven, converts the three-phase alternating current into direct current by the converter 37, and smoothes it by the smoothing capacitor 38. This smoothed DC is applied to the inverter 39. Normal operation means 43
Outputs a speed pattern so that the car 1 operates at a predetermined speed. The control circuit 45 generates a PWM signal according to the speed pattern. The inverter 39 is connected to the control circuit 4
5 is converted into a three-phase alternating current having a variable voltage and a variable frequency by being driven by the PWM signal of No. 5 and the hoisting motor 6 is moved up and down the car 1.

[0005] When the commercial power source 21 loses power, the power failure detecting means 22 operates and the generator starting means 24 turns on the private generator 23.
To start. It takes time for the private generator 23 to establish a voltage. For this reason, after the establishment of the voltage, the operation number is sequentially specified from the operation number designation means 26. The elevator is specified within the capacity of the private generator 23 by the designation of the operation unit, and the power failure control operation unit 42 is selected by the operation unit switching unit 44 of each of the designated base elements 30 to move the car 1 up and down.

[0006] The detection signal of the power failure detecting means 22 is transmitted to the operating means switching means 44 of each unit immediately after the power failure occurs.
Is input to For this reason, the power failure rescue operation means 41 is selected via the operation means switching means 44 prior to the power failure control operation by the private generator 23. Blackout rescue operation means 41
When the car 1 of the own machine is stopped between floors, the switch 35 is closed, the storage battery 33 is connected to the converter 37, the car 1 is raised and lowered to the nearest floor, the entrance door is opened, and the passenger is opened. Rescue 2 After a predetermined time, the door is closed and the switch 35 is opened to stop. Since the rescue operation is performed immediately after the power failure as described above, the control operation by the private generator 23 is usually performed after the end of the rescue operation.

[0007] When the voltage of the private generator 23 is established and the car is designated by the operation machine designation means 26, the power failure control operation means 42 of the designated car is selected. In this control operation, the stopped car 1 is moved up and down to the designated floor, the door is opened, and the passenger 2 is released and the door is closed. The last unit goes up and down in response to the landing button or the call from the car operation panel, and continues to operate by receiving power supply from the private generator 23 until the commercial power supply 21 is restored.

[0008]

The conventional elevator power failure operation device is constituted as described above, and the storage battery 3
Since the rescue operation by 3 is performed by a system independent of the control operation by the private generator 23, the rescue operation is usually performed by the power failure rescue operation means 41 until the voltage of the private generator 23 is established, After the end, the control operation by the power failure control operation means 42 is performed. As is apparent from the figure, the power failure detection means 22 is composed of the commercial power source 21 and the private generator 2.
3 and without detecting the power supply.

For this reason, the power supply of the commercial power supply 21 is interrupted, the rescue operation is performed by the storage battery 33, and then the switching is performed.
Assuming that the power failure of the battery 3 occurs, the rescue operation by the storage battery 33 is performed again. Therefore, the rescue operation is performed twice during the power outage time, the discharge amount of the storage battery 33 increases, and the life of the storage battery 33 is shortened. In order to avoid such a situation, the storage battery 33 having a large capacity should be used.
Must be used, and the private generator 21 and the storage battery 3
The storage battery 33 of the power failure operation device of the elevator including both the three items has a problem that the capacity has to be increased and the cost is higher than that of the power failure operation device using only the storage battery 33.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide an elevator power failure operation device provided with both a private generator and a storage battery without increasing the capacity of the storage battery. Aim.

[0011]

According to a first aspect of the present invention, there is provided an elevator operating system in a power outage, comprising both a private power generator and a storage battery, and a private power generator when a commercial power supply for supplying power to the elevator in a normal state is cut off. Start the car, perform rescue operation with the storage battery until the voltage reaches the predetermined value, drive the elevator car stopped between floors to the floor, and connect to the elevator when the voltage of the private generator reaches the predetermined value Then, the control operation is performed by the private power generator, and the storage battery is used as an auxiliary power supply until the power supply of the private power generator is established.

According to a second aspect of the present invention, there is provided an elevator operating system for power failure, wherein the voltage of the private generator reaches a predetermined value, and
When the rescue operation using the storage battery is completed, the private generator is connected to the elevator.

According to a third aspect of the present invention, there is provided an elevator power outage operation device comprising both a private generator and a storage battery, and when a commercial power supply for supplying power to the elevator is interrupted during normal times, the private generator is started and the floor space is started. After operating the elevator car that stopped at the floor to the floor, perform a control operation to continue operating the elevator until commercial power returns, and disconnect the private generator when both the commercial power and the private generator shut down, and store the battery. Is connected to an elevator, and a car stopped between floors is rescued to the floor.

According to a fourth aspect of the present invention, there is provided an elevator power outage operation apparatus in which a car stops between floors and only a car in which passengers are confined performs rescue operation to the floor.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 FIG. 1 and FIG.
Embodiment 1 Embodiment 1 of the present invention will be described. In the figure, the elevators from No. a to No. n are targeted for operation during a power outage. In the figure, a and n are added to the end of the reference numerals to distinguish the respective units. I do. 1 is a basket, 2
Passengers in car 1, 3 are counterweights, 4 is car 1
A main rope for suspending the counterweight 3, 5 is a hoist around which the main rope 4 is wound, 6 is a hoisting motor composed of a three-phase induction motor for driving the hoisting machine 5, and 7 is hoisting A pulse generator 8 directly connected to the rotating shaft of the electric motor 6 is a weighing device for measuring the load in the car 1 and detecting the presence or absence of a passenger.

Reference numeral 21 denotes a commercial power supply, 22 denotes a power failure detection means for detecting a power failure and power recovery of the commercial power supply 21, 23 denotes a private generator for supplying power to the elevator when the commercial power supply 21 fails, and 24 denotes a power failure detection means. Generator starting means for starting the private generator 23 when a power failure is detected, 25 is a power establishment detecting means which operates when the output voltage of the private generator 23 reaches a predetermined value, and 26 is a power supply of the private generator 23 is established. Then, the operation machine designating means 27 which sequentially operates and designates the machine to be operated to drive the elevator within the capacity of the private generator 23 is always connected to the terminal a. A power switch connected to the terminal and connected from the commercial power supply 21 to the private generator 23 side.

Numeral 30 denotes each unit element provided for each car, which is constituted by the following control equipment. 31
Is an AC bus, 32 is a switch for opening and closing the AC bus 31, 33 is a storage battery, 34 is a DC bus connected to the storage battery 33, 35 is a switch for opening and closing the DC bus 34, 36
Is a power supply switch that is always connected to the terminal a, and is connected to the terminal b when the AC bus 31 is in a power outage and switches between the AC bus 31 and the DC bus 34. 37 is a converter, 38 is a smoothing capacitor, and 39 is an inverter for converting DC to three-phase AC.

Reference numeral 41 denotes an operation direction determination circuit for determining the operation direction of the car 1 from the weighing device 8, a car position detection circuit for detecting the position of the car 1 from the pulse generator 7, and a speed pattern generation circuit for indicating the speed of the car 1. The power-saving rescue operation means mainly composed of the following components operates the car 1 stopped between floors due to a power failure by receiving power supply from the storage battery 33 to the floor. 42
Is a power failure control operation means having a call registration circuit, a car position detection circuit, and a speed pattern generation circuit as main components. The car 1 of the own car stopped between floors due to a power failure by receiving power supply from the private generator 23 Is driven to the floor, and the landing button 11
B, 12B and a continuous operation in response to a call from a car operation panel (not shown). Reference numeral 43 denotes normal operation means for performing the original operation of the elevator using the commercial power supply 21.

Reference numeral 44 denotes operation means switching means for selecting one of the power failure rescue operation means 41, the power failure control operation means 42, and the normal operation means 43 based on signals from the power failure detection means 22 and the operation unit designation means 26. In a state where the power failure detecting means 22 detects the power failure but the power supply of the private generator 23 has not been established yet and the operation number designation means 26 has not designated the operation number, the power failure rescue operation means 41 is selected and the operation number designation is performed. When the means 26 designates an operation unit, the power failure control operation means 42 is selected, and when the commercial power supply 21 is in the power transmission state, the normal operation means 4 is selected.
Select 3. Reference numeral 45 denotes a PWM according to a speed signal from a speed pattern generating means incorporated in each of the power failure rescue operation means 41, the power failure control operation means 42, and the normal operation means 43.
This is a control circuit that drives the inverter 39 by generating a signal.

Next, the operation will be described with reference to FIG. It is assumed that the commercial power supply 21 has changed from the power transmission state to the power failure state. In step S11, the power failure detection means 22 operates, the power failure rescue operation means 41 operates via the operation means switching means 44, the rescue operation processing S12a to S12n is performed for each car, and the generator start means in step S13. 24 operates to start the private generator 23. The rescue operation process S12 proceeds until the power supply of the private generator 23 is established. That is, in step S121, the operation is switched to the power failure rescue operation means 41, the output of the weighing device 8 is read, and in step S122, the presence or absence of the passenger 2 in the car 1 is checked. If there is no passenger 2, the procedure moves to step S126, where the car 1 is stopped with the car stopped, and the rescue operation processing S12 ends.

If there is a passenger in the car 1, the procedure proceeds to step S12.
In 3, the power switch 36 is connected to the terminal b to switch to the storage battery 33 side, and the power failure rescue operation is performed in step S124. In the power failure rescue operation, the car 1 stopped between the floors is moved up and down to the nearest floor 11 as shown by reference numeral 1a 'in FIG. 1, for example, until the door is opened to release the passenger 2, and then the door is closed. The details of the operation are omitted because they are commonly used. When the power failure rescue operation ends in step S125, the own machine is stopped in step S126. After the suspension, the suspension state is maintained until the commercial power supply 21 is restored.
The rescue operation process is not performed even if the power failure occurs in 3.

In step S13, the generator starting means 24 operates, and in step S14, it waits until the output voltage reaches a predetermined value.
When the power is established, the power switch 27 is moved down to the terminal b in step S15, and the AC bus 31 is connected to the private generator 23. In step S16, the operation number designation means 26 designates the power outage control operation number in consideration of the capacity of the private generator 23. In accordance with this designation, the power failure control operation processing S17a to S17n is performed from the a-th car to the n-th car in order.

That is, in step S17a, in step S17
At 1, the operating means switching means 44 operates to switch to the power failure control operating means 42. Here, assuming that the power failure rescue operation means 41 has been selected immediately before the switching, the rescue operation is switched to the power failure control operation means 42 during the rescue operation as well as during the rescue operation as well as during the rescue operation. Then, the control operation processing S17 is performed again in order from the a-th car. In step S172, the power switch 36 of the own machine is turned to the terminal a to connect the converter 37 to the private generator 23,
In step S173, the power failure control operation is performed.

The power outage control operation in step S173 includes an operation in which the car 1 stopped between the floors is raised and lowered to the predetermined floors 11 and 12, the doors are opened to release the passengers 2, and then the doors are closed and stopped. After the passenger 2 is released, the last n-th car continues to operate in response to a call from the hall buttons 11B and 12B and a car operation panel (not shown) until the commercial power supply 21 is restored again, and the required minimum number is n. It consists of driving to process traffic in the building. Details are omitted because it is commonly used. If the own machine is not the last machine, the end of the operation is checked in step S174, and if completed, the own machine is stopped in step S175 and the process returns to step S16.

In step S16, the next unit is designated as the power failure control operation unit, the completed operation processes S171 to S174 are performed, and the process returns to step S16. In the case of the last n-th unit, as described above, the operation is switched to the power failure control operation means 42 in step S171, the converter 37 is connected to the private generator 23 by the power switch 36 of the own unit in step S172, and the commercial power is supplied in step S176. The power failure control operation is continued until 21 returns. When the commercial power supply 21 returns during the continuation of the power failure control operation, the power failure detection means 22 detects the power supply, switches the power switch 27 to the commercial power supply 21 side, and switches the operation means switching means 4 of each unit.
The operation is returned to the operation by the normal operation means 43 via the control unit 4.

According to the first embodiment, the commercial power supply 21
When a power failure occurs, in step S121, each car is immediately switched to the power failure rescue operation means 41 and the storage battery 33 is operated to the nearest floor, so that passengers are immediately released without waiting for the power supply of the private generator 23 to be established. be able to. When the power of the private generator 23 is established, the procedure proceeds to step S16.
Regardless of the process in the rescue operation process S12 by designating the power failure control operation unit, the control operation of the designated unit is immediately performed by the private generator 23, so that the discharge of the storage battery 33 can be limited. .

Further, rescue operation processing S1 by the storage battery 33
2 is based on a power failure of the commercial power supply 21 and is not intended for a power failure of the private generator 23, so that the discharge of the storage battery 33 can be limited. Furthermore, basket 1
If there is no passenger 2 inside, the discharge of the storage battery 33 can be limited by not performing the power failure rescue operation in step S124. Furthermore, since the rescue operation process S12 by the storage battery 33 is included in each of the vehicle elements 30, even if there are many target cars, the passengers can be rescued in a short time after a power failure occurs. In the first embodiment, the number of elevators subjected to the operation at the time of power failure is plural, but may be one.

Embodiment 2 1 and 3 show a second embodiment of the present invention. In the first embodiment, when the power of the private generator 23 is established, the designated unit is immediately controlled by the private generator 23 regardless of the process of the rescue operation process S12. In the form 2, the rescue operation processing S12 of all the units is completed,
Further, when the power of the private generator 23 is established, the power switching means 27 is switched to the private generator 23 side. 3, the same reference numerals as those in FIG. 2 indicate the same parts or processes.

[0029] It is assumed that the commercial power supply 21 has failed. In step S11, the power failure detection means 22 operates, the power failure rescue operation means 41 operates via the operation means switching means 44, the rescue operation processing S12a to S12n is performed for each car, and the generator start means in step S13. 24 operates to start the private generator 23. Rescue operation processing S in step S18
It is checked whether or not 12 has been made and is in a dormant state. If the rescue operation process S12 has been completed for all the units, it is checked in step S14 whether the power source of the private generator 23 has been established. When the power is established, the private power generator 23 is connected to the AC bus 31 via the power switch 27 in step S15. In step S16, the operation unit designation means 26 designates from the unit a to the nth unit in order and performs the power outage control operation processing S17a to S17n again.

According to the second embodiment, the rescue operation process S12 by the storage battery 33 is limited to the power outage of the commercial power supply 21 and not the power outage of the private generator 23. The discharge of the storage battery 33 can be limited. Further, after the rescue operation processing S12 is completed for all the units, the power failure control operation processing S17a to S17n by the private generator 23 is performed, so that the storage battery 33 is used.
Switching from to the private generator 23 after the rescue of passengers,
Switching the power supply does not cause the passengers to feel uneasy. In the second embodiment, the rescue operation process S12
Is completed, power outage control operation processing S17a to S17n
However, while the power failure rescue operation S124 moves the car 1 up and down to the nearest floor, the power failure control operation raises and lowers the car 1 to a preset evacuation floor, and even if the return floor is changed. Good. Also, in the second embodiment,
Although the number of targets for operation at the time of a power outage is plural, one may be used.

Embodiment 3 In the third embodiment, when the commercial power supply is interrupted, the private power generator 23 performs a power failure control operation for each predetermined number of units. When the private power generator 23 loses power during the power failure control operation, that is, when the commercial power supply 21 and the private power supply Only when both of the generators 23 have a power failure, the battery 33 performs the power failure rescue operation. FIG.
5 shows a third embodiment of the present invention. In the drawing, the same symbols as those in FIGS. 1 and 2 indicate the same parts and the same processing.
In FIG. 4, reference numeral 28 denotes a both-side power failure detection unit that operates when both the commercial power supply 21 and the private power generator 23 lose power simultaneously by detecting a power failure of the AC bus 31.
When the power failure detection means 28 is operated, the operation signal is input to the operation means switching means 44 of each element 30. The operation means switching means 44 switches to the power failure rescue operation means 41 only when both power failures occur, and performs the rescue operation of the car 1 to the nearest floor by the storage battery 33.

The operation will be described with reference to FIG. Assuming that the commercial power supply 21 has changed from the power transmission state to the power failure state, the procedure S
At 21, the power failure detecting means 22 operates, and at step S 22, the generator starting means 24 operates to start the private generator 23. The generator 23 for private use by the steps S23 and S24
Is established within a predetermined time Ts. If it is not established within the predetermined time Ts, the power failure detection means 28 is operated in step S25, and the steps S121 to S126 are performed in step S36.
A rescue operation process is performed. If the private generator 23 has been established within the predetermined time Ts, the private generator 23 is connected to the AC bus 31 via the power switch 27 in step S26.

In step S27, the operation number designation means 26 designates the power outage control operation number in consideration of the capacity of the private generator 23. In accordance with this designation, the power failure control operation is performed from the a-th unit to the n-th unit in order. That is, in the case of the No. a machine, the procedure S28a
The operation means switching means 44 operates to operate the power failure control operation means 4
Switch to 2. In step S29a, the power switch 36 of the own machine is tilted toward the terminal a to connect the converter 37 to the private generator 23, and in step S30a, the power failure control operation is performed.
The car a is not the last car, so the car 1 is raised and lowered to a predetermined floor, the door is opened and closed, and then the car 1 is stopped to terminate the power failure control operation. If the operation has been completed, the process moves from step S31a to step S27, and the next unit is designated as the operating unit.

If the power failure control operation is not completed in step S31a, it is checked in step S32a whether the power failure detection means 28 is operated. If activated, the rescue operation process is performed for all the units in step S36, and the operation at the time of a power failure ends. If the power failure detection means 28 is not operating in step S32a, it is checked in step S33a whether the predetermined time Ts has elapsed. If not, the flow returns to step S30a to continue the power failure control operation. If the predetermined time Ts has elapsed, the procedure proceeds to step S34.
In a, the rescue operation process is performed for the a-th car, and the procedure S27 is performed.
The next unit is designated as the operating unit. The designated car performs the same power failure operation as in steps S28a to S34a. The processes in steps S28a to S34a are sequentially performed up to the last n-th car, which is the n-th car.

If the unit designated in step S27 is the last unit n, the unit is switched to the power failure control operating means 42 in step S28n as described above, and in step S29n, the power switch 36 of the own unit causes the converter 37 to generate power for private use. The power failure control operation is continued until the commercial power supply 21 is restored in step S30n. In this continuous operation, step S3
At 5, it is checked whether the power failure detection means 28 has been activated. If not, the process returns to step S30n to continue the operation. If the power failure detection means 28 is operated, the rescue operation process is performed for all the units in step S36, and the power failure operation ends.

According to the third embodiment, the commercial power supply 21
When the power failure occurs and the private generator 23 also fails, the storage battery 33 performs the power failure rescue operation. Therefore, even if both power failures occur, the passenger 2 in the car 1 can be rescued, and the power failure rescue operation is performed. Since the storage battery 33 discharges only once for one power failure, the discharge amount can be limited also in this embodiment.

[0037]

Since the present invention is configured as described above, it has the following effects. The elevator power outage operating device according to claim 1 includes both a private generator and a storage battery, and starts the private generator when a commercial power supply that supplies power to the elevator in a normal state is cut off, so that the voltage becomes a predetermined value. During the rescue operation, the elevator car stopped between the floors is driven to the floor, and when the voltage of the private generator reaches a predetermined value, it is connected to the elevator to control the operation by the private generator. Thus, the rescue operation is performed by using the storage battery until the power source of the private generator is established. Therefore, the passengers can be released quickly without waiting for the power supply of the private generator to be established, and when the power supply of the private generator is established, the control operation by the private generator is performed. This has the effect of limiting the discharge of electricity.

According to a second aspect of the present invention, there is provided the elevator operating apparatus for power failure according to the first aspect, wherein the voltage of the private generator reaches a predetermined value, and
When the rescue operation using the storage battery is completed, the private generator is connected to the elevator. For this reason, even in this case, the discharge of the storage battery can be similarly limited, and the power failure control operation by the private generator is performed after the rescue operation is completed for all units,
This has the effect of not giving the passengers an uneasy feeling associated with switching from the storage battery to the private generator.

An elevator power outage operating device according to a third aspect of the present invention includes both a private power generator and a storage battery, and when a commercial power supply for supplying power to the elevator in a normal state is cut off, the private power generator is started and the floor space between the elevators is restored. After operating the elevator car that stopped at the floor to the floor, perform a control operation to continue operating the elevator until commercial power returns, and disconnect the private generator when both the commercial power and the private generator shut down, and store the battery. Is connected to an elevator, and a car stopped between floors is rescued to the floor. For this reason, even if both the commercial power supply and the private generator lose power, the passengers in the car can be rescued, and the storage battery only discharges once for one double power failure. Similarly, the discharge of the storage battery can be limited,
This has the effect.

According to a fourth aspect of the present invention, there is provided an elevator power outage operation device in which a car stops between floors and only a car in which passengers are confined performs rescue operation to the floor. For this reason, the number of units to be rescued is limited,
This has the effect of limiting the discharge of the storage battery.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an overall configuration of an elevator power failure operation device according to Embodiment 1 of the present invention.

FIG. 2 is a flowchart showing the operation of the elevator power failure operation device according to the first embodiment of the present invention.

FIG. 3 is a flowchart showing the operation of the elevator power failure operation device according to Embodiment 2 of the present invention.

FIG. 4 is a block diagram illustrating an overall configuration of an elevator power failure operation device according to Embodiment 3 of the present invention.

FIG. 5 is a flowchart showing the operation of the elevator power failure operation device according to Embodiment 3 of the present invention.

FIG. 6 is a block diagram showing the entire configuration of a conventional elevator power failure operation device.

[Explanation of symbols]

1 basket, 2 passengers, 3 counterweights,
4 main ropes, 5 hoisting machines, 6 hoisting motors,
7 pulse generator, 8 scale device, 11 floor,
11B hall button, 12 floor, 12B hall button, 21 commercial power supply, 23 private generator,
27 power switch, 30 each element, 31 AC bus, 32 switch, 33 storage battery, 3
4 DC bus, 35 switch, 36 power switch, 37 converter, 38 smoothing capacitor,
39 Inverter.

Claims (4)

[Claims] 1. A power failure operation device in which a private power generator and a storage battery are selectively connected to the elevator when the commercial power supply for supplying power to the elevator is interrupted. A rescue operation means for connecting the storage battery to the elevator, operating the elevator car stopped between floors to the floor, and operating the power failure detection means Then, generator starting means for starting the private generator, power supply switching means for disconnecting the storage battery when the voltage of the private generator reaches a predetermined value and connecting the private generator to the elevator, and power supply switching means When the private generator is connected to the elevator by the above, the car is moved to the floor in place of the rescue operation means within the capacity of the private generator. A power failure operation device for an elevator, comprising: control operation means for continuously operating the elevator until the commercial power is restored after the operation. 2. The power supply switching means, wherein when the voltage of the private generator reaches a predetermined value and the operation by the rescue operation means is completed, the storage battery is cut off and the private generator is connected to the elevator. Item 4. The operation device for an elevator during a power outage according to Item 1. 3. A power failure operation device in which a private power generator and a storage battery are selectively connected to the elevator when a commercial power supply for supplying electric power to the elevator is interrupted, wherein the commercial power supply is interrupted. A power failure detecting means, a generator starting means for starting the private power generator when the power failure detecting means operates, and a connection to the elevator when the private power generator is started by the generator starting means. After operating the elevator car stopped between floors within the capacity of the machine to the floor, control operation means for continuously operating the elevator until the commercial power is restored, and both the commercial power supply and the private generator Power failure detection means that operates when a power failure occurs, and when the power failure detection means operates, the private generator is cut off to recharge the storage battery. A rescue operation device connected to a beta and operating the car stopped between floors to the floor, and a rescue operation device for an elevator during a power failure. 4. The operation at the time of a power outage of an elevator according to claim 1, wherein the rescue operation means operates only the car in which the passenger is confined to the floor to rescue the passenger in the car. apparatus.