CN113942903B - Elevator control method and elevator - Google Patents
Elevator control method and elevator Download PDFInfo
- Publication number
- CN113942903B CN113942903B CN202111302261.5A CN202111302261A CN113942903B CN 113942903 B CN113942903 B CN 113942903B CN 202111302261 A CN202111302261 A CN 202111302261A CN 113942903 B CN113942903 B CN 113942903B
- Authority
- CN
- China
- Prior art keywords
- elevator
- acceleration
- load
- given
- actual
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/24—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration
- B66B1/28—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical
- B66B1/30—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical effective on driving gear, e.g. acting on power electronics, on inverter or rectifier controlled motor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/3415—Control system configuration and the data transmission or communication within the control system
- B66B1/3423—Control system configuration, i.e. lay-out
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0018—Devices monitoring the operating condition of the elevator system
- B66B5/0031—Devices monitoring the operating condition of the elevator system for safety reasons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
Abstract
The embodiment of the application relates to the field of elevators, and provides an elevator control method and an elevator, wherein the elevator control method comprises the following steps: after the driver receives the emergency running instruction, the traction machine is adjusted to have a specified running state so that the elevator enters a load observing state, and the load observing state is ended within a preset time; acquiring an actual acceleration or a theoretical acceleration of a car of the elevator during a load observation state; acquiring a given acceleration based on the relation between the actual acceleration or the theoretical acceleration and the maximum preset acceleration and the minimum preset acceleration; generating a given speed matched with the actual load of the elevator at a given acceleration, wherein the given speed is less than or equal to the target speed; after the load observing state is finished, the elevator car runs at a given speed until the elevator car reaches a leveling position, so that at least the emergency power supply capacity can be reduced, the equipment volume is further reduced, and the rescue device cost is saved.
Description
Technical Field
The embodiment of the application relates to the field of elevators, in particular to a control method of an elevator and the elevator.
Background
In the world, high-rise buildings are more and more, elevator systems are widely used, and great convenience is brought to the life of people. If the elevator runs suddenly in a power failure condition during operation, the elevator can stop immediately at the moment even if the elevator is at a non-door zone position, and the elevator is not allowed to be opened when being at the non-door zone position for safety, so passengers cannot leave the elevator car at the moment, and a 'trapped' event occurs.
If no emergency rescue device exists, the maintenance personnel needs to respond quickly and arrive at a machine room for turning and putting; when the emergency rescue device is arranged, the control system is automatically switched to a backup emergency power supply after a delay of a plurality of seconds, the emergency rescue device of the elevator is triggered, the elevator enters (Elevator emergency automatic rescue device, ARD) rescue operation mode, and the elevator automatically opens and releases people after being leveled nearby and going to a door zone. In practice, an elevator is usually provided with such an emergency rescue device to provide a backup power supply for ARD operation. Wherein the type of emergency rescue device is related to the actual power of the elevator ARD when in operation.
How to reduce the capacity of the emergency power supply on the premise of ensuring successful rescue is important for the rescue device of the elevator.
Disclosure of Invention
The embodiment of the application provides a control method of an elevator and the elevator, which are at least beneficial to reducing the capacity of an emergency power supply, further reducing the volume of equipment and saving the cost of a rescue device.
According to some embodiments of the present application, an aspect of the embodiments of the present application provides a control method of an elevator, the elevator including a main power supply loop, an emergency rescue device, and a driver that is powered by the main power supply loop and drives a traction machine of the elevator to operate, including: if the power supply voltage of the main power supply loop is abnormal, switching the emergency rescue device to supply power to the driver and driving a traction machine of the elevator to operate by the driver; the method for driving the traction machine of the elevator by the driver comprises the following steps: after the driver receives an emergency running instruction, the tractor is adjusted to have a specified running state so that the elevator enters a load observing state, wherein the specified running state is that the torque current of the tractor is zero or the actual running speed of the elevator car is zero, and the load observing state is ended within a preset time; acquiring an actual acceleration or a theoretical acceleration of the elevator during the load observation state; acquiring a given acceleration based on the relation between the actual acceleration or the theoretical acceleration, the maximum preset acceleration and the minimum preset acceleration; generating a given speed at the given acceleration that matches an actual load of the elevator, and the given speed is less than or equal to a target speed; after ending the load observing state, the car of the elevator is run at the given speed until the car reaches a flat floor position.
Preferably, the specified operation state is that torque current of the traction machine is zero; the control method further includes: during the load observation state, the actual running speed of the car of the elevator is acquired.
Preferably, ending the load observation state within the preset time includes: the elevator enters a load observation state to start timing, and if the duration of the load observation state is smaller than the preset time and the actual running speed is greater than or equal to a preset threshold value, the load observation state is ended; and if the actual running speed is always smaller than the preset threshold value during the load observation state, ending the load observation state after the preset time.
Preferably, the specified operating state is that the actual operating speed of the elevator is zero; the control method further includes: during the load observation state, a load torque of the hoisting machine is obtained, and the theoretical acceleration of the elevator is obtained based on the load torque.
Preferably, generating a given speed matching the actual load of the elevator at the given acceleration comprises: the given speed is incremented by the given acceleration until the given speed is equal to the target speed.
Preferably, the method of acquiring a given acceleration comprises: if Afbk > Amax, the given acceleration is equal to the maximum preset acceleration; if Afbk is smaller than Amin, the given acceleration is equal to the minimum preset acceleration; and if Amin is less than or equal to Afbk and less than or equal to Amax, the given acceleration is equal to the actual acceleration or the theoretical acceleration, wherein Afbk is the actual acceleration or the theoretical acceleration, amin is the minimum preset acceleration, and Amax is the maximum preset acceleration.
Preferably, the preset time ranges from 0.02s to 1.20s.
According to some embodiments of the present application, there is also provided in another aspect of embodiments an elevator including: a detection module for detecting a torque current of the traction machine or the actual running speed of a car of the elevator; the control module is used for adjusting the traction machine to have a specified running state so as to enable the elevator to enter the load observation state; the load matching module is used for acquiring the actual acceleration or the theoretical acceleration of the elevator during the load observation state, acquiring a given acceleration based on the relation between the actual acceleration or the theoretical acceleration and the maximum preset acceleration and the minimum preset acceleration, and generating a given speed matched with the actual load of the elevator by the given acceleration, wherein the given speed is smaller than or equal to a target speed; the control module is also configured to control the elevator car to travel at the given speed after the load observation state is ended until the car reaches a level position.
Preferably, the emergency rescue device includes: the charging loop is connected with the main power supply circuit; the power input end of the storage battery is connected with the charging loop and is charged through the charging loop; the boost circuit is connected with the power supply output end of the storage battery and is used for carrying out direct current boost conversion on the power supply output by the storage battery; and the inversion loop is respectively connected with the boost loop and the driver, inverts the direct-current voltage output by the boost loop into alternating current and outputs the alternating current to the power supply end of the driver.
Preferably, the elevator further comprises a main board, and if the power supply voltage of the main power supply loop is abnormal, the main board sends out an emergency running instruction.
Preferably, the driver receives the emergency operation instruction and controls the traction machine to operate with low power consumption. The technical scheme provided by the embodiment of the application has at least the following advantages:
the method comprises the steps of generating a given speed matched with the actual load of the elevator at a given acceleration, wherein the given speed is smaller than or equal to a target speed, and after the load observation state is finished, the elevator car of the elevator runs at the given speed until the elevator car reaches a flat floor position, so that on one hand, when the power supply voltage of a main power supply loop in the use of the elevator is abnormal and the elevator car is not at a door zone position, success of rescue can be ensured, on the other hand, the speed curve automatically generated by the elevator is matched with the actual load condition of the elevator and can be changed along with the situation, the peak power and peak current requirements of an emergency power supply during ARD running can be furthest reduced, the emergency power supply capacity can be further reduced, and the method is beneficial to reducing the equipment volume and saving the cost of the rescue device.
Drawings
One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, which are not to be construed as limiting the embodiments unless specifically indicated otherwise.
Fig. 1 is a schematic flow chart of a control method of an elevator according to an embodiment of the present application;
fig. 2 is a schematic diagram of a connection relationship between an emergency rescue device and an elevator system in a control method of an elevator according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a driver in a control method of an elevator according to an embodiment of the present application;
fig. 4 is a schematic flow chart of a method for driving a traction machine of an elevator by a driver in a control method of an elevator according to an embodiment of the application;
fig. 5 is a schematic flow chart of adjusting a motor of a traction machine to have a designated running state in a control method of an elevator according to an embodiment of the present application;
fig. 6 is a schematic flow chart of ending a load observation state within a preset time in a control method of an elevator according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of an elevator according to an embodiment of the present application.
Detailed Description
As known from the background art, in the usual ARD operation mode, the driver has the following two processing methods:
firstly, controlling the operation of a traction machine according to an operation command and a speed command of a main board;
second, the operation command and the speed are controlled by the main board, but the operation direction is determined by the driver, and the operation direction and the stress direction are kept consistent.
The second method is the current mainstream application method, which saves energy and reduces running power consumption compared with the first method, and the capacity of the emergency power supply is reduced compared with the first method, but the speed curve in the second method is also fixed, that is, the speed curve does not change with the actual load condition of the elevator. The type of the emergency rescue device is related to the actual power of the elevator ARD during operation, and when the power is selected to be small at the full-load limit, the undervoltage of a bus of the frequency converter can be caused by insufficient output power and insufficient current of the emergency power supply at times, so that the ARD rescue operation fails, and the further reduction of the capacity of the emergency power supply is limited.
The embodiment of the application provides a control method of an elevator and the elevator, which are used for generating a given speed matched with the actual load of the elevator at a given acceleration, so that the requirements of ARD operation on peak power and peak current of an emergency power supply are reduced to the maximum extent.
In order to make the objects, technical solutions and advantages of the present application more apparent, embodiments of the present application will be described in detail below with reference to the accompanying drawings. However, it will be understood by those of ordinary skill in the art that in various embodiments of the present application, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the claimed technical solution of the present application can be realized without these technical details and various changes and modifications based on the following embodiments.
The control method of the elevator and the application scene of the elevator provided by the embodiment of the application can include but are not limited to: passenger elevator system applied to office building, residential building, school, subway and other scenes; the freight elevator system is applied to large-scale factories such as power plants, steel plants, cement plants and the like; the elevator system is applied to special scenes such as hospitals, science and technology centers, research institutes and the like; the method is applied to hollowed-out elevator systems and the like in the scenes of mines, construction sites and the like.
Embodiments of the present application will be described in more detail below with reference to the accompanying drawings.
Fig. 1 is a schematic flow chart of an elevator control method according to an embodiment of the present application. As shown in fig. 2 and 3, the elevator system includes a main circuit 1 and an emergency rescue device 2, the main circuit 1 includes a main power supply circuit, a driver 11, and a traction machine 12, and the driver 11 is powered by the main power supply circuit and drives the traction machine 12 of the elevator to operate. The driver 11 includes a driving circuit and a control circuit, wherein the driving circuit is composed of a rectifying unit, an inverting unit, a direct current bus, a braking unit and the like, the output of the inverting unit drives the traction motor to rotate, the control circuit is composed of a control unit, a driving unit and the like, and the driving unit is connected with the driving circuit. The driver 11 is also connected with the emergency rescue device 2, and the control loop and the driving loop are interconnected through communication or interacted through input and output terminals to realize instruction transmission and state feedback. The emergency rescue device 2 comprises a storage battery 21, a charging circuit 22, a boosting circuit 23 and an inversion circuit 24, wherein the emergency rescue device 2 is connected to the main power supply circuit and charges the storage battery 21 through the charging circuit 22; the boost circuit 23 is connected to the power output terminal of the battery 21, and performs dc boost conversion on the power output from the battery 21; the inverter circuit 24 is connected to the booster circuit 23, and when the commercial power is disconnected, the inverter circuit 24 inverts the dc voltage output from the booster circuit 23 into ac power and outputs the ac power to the power supply terminal of the driver 11, thereby supplying power to the drive circuit instead of the commercial power.
Specifically, in some embodiments, referring to fig. 3, the control loop of the driver 11 may be a motherboard 111 for receiving instructions and sending instructions, and the drive loop may be a frequency converter 112 for executing instructions and feedback instructions. The command is a CMD command, and the content of the command includes an emergency running command, a target speed command, a stop command, and the like.
More specifically, the frequency converter 112 includes a processing unit 113, a motor control 114, a detecting unit 115 and a feedback unit 116, where the processing unit 113 processes the elevator load matching related function, the motor control unit 114 outputs a pwm control signal to drive the traction machine 12 to rotate, the detecting unit 115 receives the elevator load matching related function and outputs it to the processing unit 113 and the feedback unit 116, the detecting module 115 includes a speed measuring module and a measuring module, the speed measuring module detects the actual running speed and the actual acceleration of the elevator car, the measuring module detects the torque current of the traction machine, and the feedback unit 116 feeds back the relation between the given acceleration and the actual acceleration or the theoretical acceleration and outputs it to the motor control unit 114. The elevator load matching related functions comprise the speed, voltage, current, power, frequency, magnetic pole position and the like of an elevator car.
In addition, the elevator system should further comprise a switching unit and a detection unit, wherein the input end of the switching unit is connected with the main power supply loop and the emergency rescue device 2, and the output end of the switching unit is connected with the driver 11 of the elevator; the switching unit outputs a mains or emergency power supply to the driver 11; the detection unit detects the supply voltage information of the main supply circuit and sends a signal to the switching unit and the emergency rescue device 2. If the power supply voltage of the main power supply loop is abnormal, the detection unit sends a signal to the switching unit and switches the emergency rescue device 2 to supply power to the driver 11, so as to drive the traction machine 12 of the elevator to operate.
Specifically, the control method of the elevator according to some embodiments of the present application includes the steps of:
step S1: the supply voltage of the main supply loop, for example the mains voltage, is detected in real time. Specifically, the power supply voltage information of the main power supply circuit is detected by the detection unit and sent to the switching unit and emergency assistance device 2.
Step S2: and judging whether the power supply voltage of the main power supply circuit is abnormal, executing the step S3 when the power supply voltage of the main power supply circuit is abnormal, otherwise returning to the step S1, and continuously detecting the power supply voltage of the main power supply circuit. The abnormal input voltage of the main power supply loop comprises the phase failure or the power failure of the power supply voltage of the main power supply loop.
Step S3: the connection of the drive 11 to the supply voltage of the main supply circuit is disconnected, and the supply of the control circuit of the drive 11 is switched to the emergency rescue device 2. Specifically, the above steps are performed by the switching unit.
Step S4: the hoisting machine 12 of the elevator is driven to run to move the car to the landing position and after the car has reached the landing position, the car doors and hoistway doors are opened so that passengers leave the car.
As shown in fig. 3, in the method for controlling an elevator according to an embodiment of the present application, a method for driving a traction machine of an elevator by a driver may be executed by a control circuit of the driver 11, or may be executed by the control circuit in combination with the emergency rescue device 11, and may specifically include the following steps:
step S31: the driver 11 receives the emergency operation instruction.
Step S32: the machine 12 is adjusted to have a specified motion state to bring the elevator into a load observing state.
Step S33: and ending the load observation state within a preset time.
Specifically, the preset time ranges from 0.02s to 1.20s, specifically 1.00s.
Step S34: during the load observation state, the actual acceleration or the theoretical acceleration of the elevator is acquired.
Step S35: and acquiring the given acceleration based on the relation between the actual acceleration or the theoretical acceleration and the maximum preset acceleration and the minimum preset acceleration.
Specifically, the method for acquiring the given acceleration based on the base comprises the following steps:
if Afbk is greater than Amax, the given acceleration is equal to the maximum preset acceleration;
if Afbk is smaller than Amin, the given acceleration is equal to the minimum preset acceleration;
if Amin is less than or equal to Afbk and less than or equal to Amax, the given acceleration is equal to the actual acceleration or the theoretical acceleration, wherein Afbk is the actual acceleration or the theoretical acceleration, amin is the minimum preset acceleration, and Amax is the maximum preset acceleration.
More specifically, the maximum preset acceleration is 2.5m/s 2 Minimum preset acceleration of 0.05m/s 2 。
Step S36: a given speed is generated at a given acceleration that matches the actual load of the elevator, and the given speed is less than or equal to the target speed.
Specifically, the given speed is incremented at the given acceleration until the given speed is equal to the target speed.
More specifically, the target speed ranges from 0.10m/s to 0.30m/s, specifically 0.20m/s. Step S37: after the load observation state is finished, the car of the elevator runs at a given speed until the car reaches the flat floor position.
Specifically, during the operation of the car of the elevator at a given speed, if the target speed decreases, the given speed also decreases at the same time.
As shown in fig. 4, in some embodiments of the present application, the motor of the traction machine can be adjusted to have a designated operation state by the following steps:
step S320: the machine 12 is adjusted to have a specified motion state to bring the elevator into a load observing state.
Specifically, the above specified state is zero torque current of the hoisting machine or zero actual running speed of the car of the elevator.
Step S321: the specified motion state is zero for the actual running speed of the car of the elevator.
Step S322: during a load observation state, a load torque current of a hoisting machine is obtained, and the theoretical acceleration of the elevator is obtained based on the load torque current.
Specifically, the measuring module can be used for sampling the load torque current of the traction machine in real time, and acquiring the theoretical acceleration of the elevator according to the load torque current. The theoretical acceleration is obtained by, for example, calculation of the following calculation formula (1):
A＝9549*P*r*Iqref/(N*J*k*I) (1)
wherein: p is rated power (kw), r is traction sheave radius (m), iqref is load torqueCurrent (A), N is rated rotation speed (rpm), J is system inertia (kg x m) 2 ) K is the traction ratio, and I is the rated current (A) of the traction machine.
In other embodiments of the present application, the motor of the traction machine can be adjusted to have a designated operating state by the following steps:
step S320: the machine 12 is adjusted to have a specified motion state to bring the elevator into a load observing state.
Step S321: the specified motion state is zero torque current of the traction machine.
Step S322: during the load observation state, the actual running speed of the elevator as well as the actual acceleration are acquired.
As shown in fig. 5, in some embodiments of the present application, the load observation state may be ended within a preset time by the following steps:
step S331: and (3) starting timing when the elevator enters the load observation state, judging whether the duration time of the load observation state is less than the preset time, executing step S332 when the duration time of the load observation state is less than the preset time, and otherwise, ending the load observation state when the elevator passes the preset time.
Step S332: and judging whether the actual running speed of the elevator car is smaller than a preset threshold value, returning to the step S331 when the actual running speed of the elevator car is smaller than the preset speed, continuously judging whether the duration of the load observation state is smaller than the preset time, and ending the load observation state if not.
Specifically, the preset threshold value is less than or equal to the target speed, and the range of the preset threshold value is 0.05m/s to 0.15m/s, specifically 0.10m/s.
According to some embodiments of the application, a given speed matched with the actual load of the elevator is generated by a given acceleration, the given speed is smaller than or equal to a target speed, after the load observation state is finished, the elevator car of the elevator runs at the given speed until the elevator car reaches a flat floor position, on one hand, when the power supply voltage of a main power supply loop in use of the elevator is abnormal and the elevator car is not at a door zone position, success of rescue can be ensured, on the other hand, a speed curve automatically generated by the elevator is matched with the actual load condition of the elevator and can be changed along with the speed curve, the requirements of peak power and peak current of an emergency power supply during ARD running can be furthest reduced, and the method can further reduce the capacity of the emergency power supply, thereby being beneficial to reducing the volume of equipment and saving the cost of a rescue device.
Some embodiments of the application also provide an elevator, analyzed in connection with fig. 7, comprising: a detection module 41, the detection module 41 is used for detecting the torque current of the traction machine or the actual running speed of the elevator car; a control module 42, the control module 42 being configured to adjust the hoisting machine 12 to have a specified operating state to bring the elevator into a load observing state; a load matching module 43, configured to obtain an actual acceleration or a theoretical acceleration of the elevator during a load observation state, and obtain a given acceleration based on a relationship between the actual acceleration or the theoretical acceleration and a maximum preset acceleration and a minimum preset acceleration, and generate a given speed matching an actual load of the elevator with the given acceleration, where the given speed is less than or equal to a target speed; the control module 42 is also used to control the car of the elevator to travel at a given speed after the load-observing condition is completed until the car reaches the flat floor position. The detection module 41, the control module 42 and the load matching module 43 constitute the frequency converter 4.
The elevator further comprises a main board 3, and if the power supply voltage of the main power supply loop is abnormal, the main board 3 sends out an emergency running instruction.
Referring to fig. 2, the emergency rescue device 2 is connected to a driver 11, and the driver 11 receives an emergency operation command to control a traction machine 12 to operate with low power consumption. The emergency rescue device 2 includes: the charging loop 22, the charging loop 22 is connected with the main power supply circuit; the storage battery 21, the power input end of the storage battery 21 is connected with the charging loop 22, and is charged through the charging loop 22; a boost circuit 23, the boost circuit 23 being connected to a power supply output terminal of the battery 21, and performing dc boost conversion on a power supply output from the battery 21; the inverter circuit 24, the inverter circuit 24 is connected to the booster circuit 23 and the driver 11, respectively, and the inverter circuit 24 inverts the dc voltage output from the booster circuit 23 into ac power and outputs the ac power to the power supply terminal of the driver 11, and supplies power to the driver circuit instead of the utility power.
In addition, the main circuit 1 should further include a switching unit and a detection unit, wherein an input end of the switching unit is connected with the main power supply circuit and the emergency rescue device 2, and an output end of the switching unit is connected with the driver 11 of the elevator; the switching unit outputs a mains or emergency power supply to the driver 11; the detection unit detects the supply voltage information of the main supply circuit and sends a signal to the switching unit and the emergency rescue device 2. If the power supply voltage of the main power supply loop is abnormal, the detection unit sends a signal to the switching unit and switches the emergency rescue device 2 to supply power to the driver 11, so as to drive the traction machine 12 of the elevator to operate.
The elevator in this embodiment and the control method of the elevator in the corresponding embodiments of fig. 1 and 4-6 belong to the same concept, the specific implementation process is detailed in the corresponding method embodiment, and the technical features in the method embodiment are correspondingly applicable in the elevator embodiment, and are not repeated here.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples of carrying out the application and that various changes in form and details may be made therein without departing from the spirit and scope of the application. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the application, and the scope of the application is therefore intended to be limited only by the appended claims.
Claims (11)
1. A control method of an elevator, characterized in that the elevator comprises a main power supply circuit, an emergency rescue device and a drive, which is supplied by the main power supply circuit and drives a hoisting machine of the elevator to operate, comprising:
if the power supply voltage of the main power supply loop is abnormal, switching the emergency rescue device to supply power to the driver and driving a traction machine of the elevator to operate by the driver; the method for driving the traction machine of the elevator by the driver comprises the following steps:
after the driver receives an emergency running instruction, the tractor is adjusted to have a specified running state so that the elevator enters a load observing state, wherein the specified running state is that the torque current of the tractor is zero or the actual running speed of the elevator car is zero, and the load observing state is ended within a preset time;
acquiring an actual acceleration or a theoretical acceleration of the elevator during the load observation state;
acquiring a given acceleration based on the relation between the actual acceleration or the theoretical acceleration, the maximum preset acceleration and the minimum preset acceleration;
generating a given speed at the given acceleration that matches an actual load of the elevator, and the given speed is less than or equal to a target speed;
after ending the load observing state, the car of the elevator is run at the given speed until the car reaches a flat floor position.
2. The control method of an elevator according to claim 1, characterized in that the specified operating state is that the torque current of the hoisting machine is zero; the control method further includes: during the load observation state, the actual running speed of the car of the elevator is acquired.
3. The control method of an elevator according to claim 2, characterized in that ending the load observation state within the preset time comprises:
the elevator enters a load observation state to start timing, and if the duration of the load observation state is smaller than the preset time and the actual running speed is greater than or equal to a preset threshold value, the load observation state is ended;
and if the actual running speed is always smaller than the preset threshold value during the load observation state, ending the load observation state after the preset time.
4. The control method of an elevator according to claim 1, characterized in that the specified operating state is that the actual operating speed of the car of the elevator is zero; the control method further includes: during the load observation state, a load torque of the hoisting machine is obtained, and the theoretical acceleration of the elevator is obtained based on the load torque.
5. The control method of an elevator according to claim 1, characterized in that generating a given speed matching the actual load of the elevator at the given acceleration comprises: the given speed is incremented by the given acceleration until the given speed is equal to the target speed.
6. The control method of an elevator according to claim 1, characterized in that the method of acquiring a given acceleration comprises:
if Afbk > Amax, the given acceleration is equal to the maximum preset acceleration;
if Afbk is smaller than Amin, the given acceleration is equal to the minimum preset acceleration;
and if Amin is less than or equal to Afbk and less than or equal to Amax, the given acceleration is equal to the actual acceleration or the theoretical acceleration, wherein Afbk is the actual acceleration or the theoretical acceleration, amin is the minimum preset acceleration, and Amax is the maximum preset acceleration.
7. The control method of an elevator according to claim 1, characterized in that the preset time is in the range of 0.02s to 1.20s.
8. Elevator for implementing the control method according to any one of claims 1-7, characterized in that the elevator comprises: a detection module for detecting a torque current of the traction machine or the actual running speed of a car of the elevator;
the control module is used for adjusting the traction machine to have a specified running state so as to enable the elevator to enter the load observation state;
the load matching module is used for acquiring the actual acceleration or the theoretical acceleration of the elevator during the load observation state, acquiring a given acceleration based on the relation between the actual acceleration or the theoretical acceleration and the maximum preset acceleration and the minimum preset acceleration, and generating a given speed matched with the actual load of the elevator by the given acceleration, wherein the given speed is smaller than or equal to a target speed;
the control module is also configured to control the elevator car to travel at the given speed after the load observation state is ended until the car reaches a level position.
9. The elevator of claim 8, the emergency rescue device comprising:
the charging circuit is connected with the main power supply circuit;
the power input end of the storage battery is connected with the charging loop and is charged through the charging loop;
the boost circuit is connected with the power supply output end of the storage battery and is used for carrying out direct-current boost conversion on the power supply output by the storage battery;
and the inversion loop is respectively connected with the boost loop and the driver, inverts the direct-current voltage output by the boost loop into alternating current and outputs the alternating current to the power supply end of the driver.
10. The elevator of claim 8, further comprising a main board that issues an emergency operation command if an abnormality occurs in a supply voltage of the main power supply circuit.
11. The elevator of claim 10, the drive receiving the emergency operation instruction and controlling the hoisting machine to operate with low power consumption.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111302261.5A CN113942903B (en) | 2021-11-04 | 2021-11-04 | Elevator control method and elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111302261.5A CN113942903B (en) | 2021-11-04 | 2021-11-04 | Elevator control method and elevator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113942903A CN113942903A (en) | 2022-01-18 |
| CN113942903B true CN113942903B (en) | 2023-08-11 |
Family
ID=79337571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111302261.5A Active CN113942903B (en) | 2021-11-04 | 2021-11-04 | Elevator control method and elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113942903B (en) |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2044249U (en) * | 1988-11-21 | 1989-09-13 | 薛燊 | Emergency device for lift on temp. electricity cut-off |
| CN1311150A (en) * | 2000-02-28 | 2001-09-05 | 三菱电机株式会社 | Elevator control device |
| US6619434B1 (en) * | 2002-03-28 | 2003-09-16 | Thyssen Elevator Capital Corp. | Method and apparatus for increasing the traffic handling performance of an elevator system |
| WO2006074689A1 (en) * | 2005-01-11 | 2006-07-20 | Otis Elevator Company | Method for performing an elevator rescue run |
| WO2007013448A1 (en) * | 2005-07-26 | 2007-02-01 | Mitsubishi Electric Corporation | Elevator device |
| CN101066732A (en) * | 2007-06-01 | 2007-11-07 | 苏州江南嘉捷电梯集团有限公司 | Power failure rescue method for sync motor driven lift |
| CN101462664A (en) * | 2007-12-21 | 2009-06-24 | 上海三菱电梯有限公司 | Speed limiter of elevator |
| JP2010189084A (en) * | 2009-02-16 | 2010-09-02 | Mitsubishi Electric Corp | Elevator control device |
| CN102198900A (en) * | 2010-03-23 | 2011-09-28 | 上海三菱电梯有限公司 | Backup source operation control system of energy feedback elevator |
| CN102459050A (en) * | 2009-06-30 | 2012-05-16 | 奥的斯电梯公司 | Gravity driven start phase in power limited elevator rescue operation |
| EP2602221A2 (en) * | 2011-12-09 | 2013-06-12 | Control Techniques Ltd | Comfort peak curve operation |
| CN103213885A (en) * | 2012-01-20 | 2013-07-24 | 株式会社日立制作所 | Elevator operating with emergency power supply |
| JP2014169174A (en) * | 2013-03-05 | 2014-09-18 | Mitsubishi Electric Corp | In-blackout rescue operation device for elevator |
| CN110027953A (en) * | 2019-04-11 | 2019-07-19 | 重庆伊士顿电梯有限责任公司 | A kind of elevator and method of automatic help function |
| CN110817624A (en) * | 2019-09-30 | 2020-02-21 | 苏州汇川技术有限公司 | Elevator emergency rescue method, device, equipment and computer readable storage medium |
| CN113443528A (en) * | 2021-06-30 | 2021-09-28 | 苏州汇川控制技术有限公司 | Elevator emergency rescue method, device and computer readable storage medium |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4249364B2 (en) * | 2000-02-28 | 2009-04-02 | 三菱電機株式会社 | Elevator control device |
-
2021
- 2021-11-04 CN CN202111302261.5A patent/CN113942903B/en active Active
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2044249U (en) * | 1988-11-21 | 1989-09-13 | 薛燊 | Emergency device for lift on temp. electricity cut-off |
| CN1311150A (en) * | 2000-02-28 | 2001-09-05 | 三菱电机株式会社 | Elevator control device |
| US6619434B1 (en) * | 2002-03-28 | 2003-09-16 | Thyssen Elevator Capital Corp. | Method and apparatus for increasing the traffic handling performance of an elevator system |
| WO2006074689A1 (en) * | 2005-01-11 | 2006-07-20 | Otis Elevator Company | Method for performing an elevator rescue run |
| WO2007013448A1 (en) * | 2005-07-26 | 2007-02-01 | Mitsubishi Electric Corporation | Elevator device |
| CN101066732A (en) * | 2007-06-01 | 2007-11-07 | 苏州江南嘉捷电梯集团有限公司 | Power failure rescue method for sync motor driven lift |
| CN101462664A (en) * | 2007-12-21 | 2009-06-24 | 上海三菱电梯有限公司 | Speed limiter of elevator |
| JP2010189084A (en) * | 2009-02-16 | 2010-09-02 | Mitsubishi Electric Corp | Elevator control device |
| CN102459050A (en) * | 2009-06-30 | 2012-05-16 | 奥的斯电梯公司 | Gravity driven start phase in power limited elevator rescue operation |
| CN102198900A (en) * | 2010-03-23 | 2011-09-28 | 上海三菱电梯有限公司 | Backup source operation control system of energy feedback elevator |
| EP2602221A2 (en) * | 2011-12-09 | 2013-06-12 | Control Techniques Ltd | Comfort peak curve operation |
| CN103213885A (en) * | 2012-01-20 | 2013-07-24 | 株式会社日立制作所 | Elevator operating with emergency power supply |
| JP2013147328A (en) * | 2012-01-20 | 2013-08-01 | Hitachi Ltd | Elevator operated by emergency power supply |
| JP2014169174A (en) * | 2013-03-05 | 2014-09-18 | Mitsubishi Electric Corp | In-blackout rescue operation device for elevator |
| CN110027953A (en) * | 2019-04-11 | 2019-07-19 | 重庆伊士顿电梯有限责任公司 | A kind of elevator and method of automatic help function |
| CN110817624A (en) * | 2019-09-30 | 2020-02-21 | 苏州汇川技术有限公司 | Elevator emergency rescue method, device, equipment and computer readable storage medium |
| CN113443528A (en) * | 2021-06-30 | 2021-09-28 | 苏州汇川控制技术有限公司 | Elevator emergency rescue method, device and computer readable storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113942903A (en) | 2022-01-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8230978B2 (en) | Elevator regenerative drive with automatic rescue operation | |
| JP3338680B2 (en) | Elevator rescue operation control method during power outage | |
| CN1042780C (en) | Elevator controlling unit | |
| CN110817624A (en) | Elevator emergency rescue method, device, equipment and computer readable storage medium | |
| US8146714B2 (en) | Elevator system including regenerative drive and rescue operation circuit for normal and power failure conditions | |
| RU2535117C2 (en) | Phase of elevator rescue by-gravity run start by limited electric power supply | |
| CN102216863A (en) | On demand elevator load shedding | |
| EP3594046B1 (en) | Power system of electric vehicle,control method and electric vehicle | |
| CN109650196A (en) | The rescue mode of elevator power failure | |
| CN113659698A (en) | Elevator power failure emergency rescue device, control method, elevator and medium | |
| CN113942903B (en) | Elevator control method and elevator | |
| EP4242157A2 (en) | Automatic rescue and charging system for elevator drive | |
| CN213679319U (en) | Elevator emergency rescue control circuit | |
| JP2013234028A (en) | Elevator | |
| JPH04244745A (en) | Controller for ac elevator | |
| KR102204195B1 (en) | 9-phase driver for elevator | |
| CN205367357U (en) | Permanent magnet synchronous motor traction elevator's back -up source | |
| CN104418192A (en) | Elevator control apparatus | |
| CN116526651A (en) | Elevator control system and method, controller, elevator and readable storage medium | |
| JP3669761B2 (en) | Elevator operation device | |
| CN219971531U (en) | Bypass emergency rescue control system for high-speed elevator | |
| JP2014172678A (en) | Elevator | |
| CN212572182U (en) | Stereo garage energy feedback device | |
| CN208571697U (en) | Charging bow power-off rising bow control device | |
| CN110417329B (en) | Traction system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |