WO2021062902A1 - Procédé de secours d'urgence, appareil et dispositif pour ascenseur, et support d'enregistrement lisible par ordinateur - Google Patents

Procédé de secours d'urgence, appareil et dispositif pour ascenseur, et support d'enregistrement lisible par ordinateur Download PDF

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Publication number
WO2021062902A1
WO2021062902A1 PCT/CN2019/113446 CN2019113446W WO2021062902A1 WO 2021062902 A1 WO2021062902 A1 WO 2021062902A1 CN 2019113446 W CN2019113446 W CN 2019113446W WO 2021062902 A1 WO2021062902 A1 WO 2021062902A1
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WIPO (PCT)
Prior art keywords
car
circuit
emergency rescue
traction motor
driver
Prior art date
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Ceased
Application number
PCT/CN2019/113446
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English (en)
Chinese (zh)
Inventor
蔡准
汤程峰
关欣
郑磊
齐太安
姚培锋
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Suzhou Inovance Technology Co Ltd
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Suzhou Inovance Technology Co Ltd
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Publication of WO2021062902A1 publication Critical patent/WO2021062902A1/fr
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    • 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
    • B66B1/24—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
    • B66B1/302—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 for energy saving
    • 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
    • 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
    • B66B1/3476—Load weighing or car passenger counting devices
    • 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
    • B66B1/3492—Position or motion detectors or driving means for the detector
    • 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
    • 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
    • B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
    • B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces

Definitions

  • the present invention relates to the field of elevators, and more specifically, to an elevator emergency rescue method, device, equipment and computer-readable storage medium.
  • elevator emergency rescue devices are required to implement emergency rescue when the elevator system is abnormal, so that the car can run to the level and open the door to release people.
  • the current elevator emergency rescue mainly includes the following four types of programs:
  • the car rolling rescue plan including the car rolling and direct car rolling rescue, such as the Chinese patent application with the document number CN107265235, which transmits a signal to the elevator when the fault sensor senses the occurrence of an elevator failure.
  • the controller after receiving the elevator fault information, executes rescue according to whether it is currently parked on a leveling floor or a non-leveling floor.
  • the direct opening of the gate and the car will likely produce greater acceleration, causing panic of the trapped personnel in the elevator car and possible secondary injury; in addition, Due to the acceleration of gravity, the speed is getting faster and faster, which may trigger the safety circuit protection and cause rescue failure.
  • This scheme is more effective for unbalanced loads, and the rescue process is more comfortable; however, when the scheme is parked very close to the door area, the sliding distance is not enough to generate enough energy to increase the bus voltage, and the parking comfort is not good ; And, when the elevator system is in a balanced load condition, even if the motor brake is opened, the car cannot move, and rescue cannot be implemented.
  • the embodiment of the present invention aims at the limited storage capacity of the battery in the above-mentioned driving rescue scheme, and continuous rescue is impossible.
  • driving rescue scheme directly opening the brakes and rolling the vehicle may produce relatively large acceleration, and the scheme of using an external independent lifting device requires professional operation and consumption.
  • the problem is that the time is long, and the solution using regenerative energy feedback is less effective when the car stops near the door area.
  • An elevator emergency rescue method, device, equipment, and computer-readable storage medium are provided.
  • the technical solution of the embodiment of the present invention to solve the above technical problems is to provide an elevator emergency rescue method, characterized in that the elevator includes a main circuit and an emergency rescue device, the main circuit includes a main power supply circuit and a driver, and the The driver is powered by the main power supply loop and drives the traction motor to run, and the method includes:
  • the driver When the input voltage of the main power supply circuit is abnormal, the driver is switched to be powered by the emergency rescue device, and the car is controlled to run to level according to the load state of the car and the position information of the car. Tier location.
  • the driver includes a drive circuit and a control circuit
  • the emergency rescue device includes a main circuit power supply part and an auxiliary power supply part; the switching the driver to be powered by the emergency rescue device includes;
  • the control circuit of the driver is connected to the auxiliary power supply part of the emergency rescue device.
  • controlling the car to run to the leveling position according to the load state of the car and the position information of the car includes:
  • the control loop of the driver controls the car to run to the leveling position in a regenerative energy feedback mode.
  • controlling the car to run to the leveling position according to the load state of the car and the position information of the car includes:
  • control loop of the driver controls the car to run to the leveling position in a regenerative energy feedback mode.
  • the controlling the elevator car to run to the leveling position in a regenerative energy feedback mode includes:
  • the rotation speed of the traction motor is sampled in real time, and the sampling value of the rotation speed at the previous moment is used as the command speed at the current moment. Closed loop control or open loop control of the rotation speed of the traction motor , Until the rotation speed of the traction motor reaches the preset rescue speed;
  • the traction motor is controlled to run to the leveling position in a closed loop with a preset deceleration curve.
  • the controlling the elevator car to run to the leveling position in a regenerative energy feedback mode includes:
  • the braking torque is controlled so that the generated power does not exceed the preset generated power.
  • the method includes:
  • controlling the car to run to the leveling position through the control loop of the driver includes:
  • the embodiment of the present invention also provides an emergency rescue device, the emergency rescue device is communicatively connected with the driver, and the driver includes a drive circuit and a control circuit; the emergency rescue device includes a battery, an AC output circuit, an LC filter circuit, and a control circuit. Power circuit, detection unit and contactor cut-off unit;
  • the output terminal of the battery is connected to the AC output circuit and the control power circuit via a first contactor, and the output terminal of the AC output circuit is connected to the power supply of the driver via an LC filter circuit and a second contactor. Terminal, the control power circuit is connected to the control circuit of the driver;
  • the detection unit is connected to the main power supply circuit that supplies power to the driver, and when the voltage of the main power supply circuit is abnormal, the contactor cut-off unit disconnects the main contactor in the main power supply circuit and closes the first Contactor.
  • the embodiment of the present invention also provides an elevator emergency rescue equipment, including a memory and a processor, the memory stores a computer program that can run on the processor, and the processor executes the computer program as described above. Describe the steps of the elevator electric emergency rescue method.
  • the embodiment of the present invention also provides a computer-readable storage medium having a computer program stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the elevator emergency rescue method described above are realized.
  • the elevator emergency rescue method, device, equipment and computer-readable storage medium of the embodiments of the present invention detect the position of the car and the load when the mains is disconnected, and adopt driving rescue, rolling rescue or energy feedback rescue, which greatly improves The comfort of passengers during emergency rescue is improved, and emergency rescue failure can be avoided.
  • Figure 1 is a schematic flowchart of an elevator emergency rescue method provided by an embodiment of the present invention
  • FIG. 2 is a schematic diagram of the connection relationship between the emergency rescue device and the elevator system in the elevator emergency rescue method provided by the embodiment of the present invention
  • FIG. 3 is a schematic flowchart of an elevator emergency rescue method provided by another embodiment of the present invention.
  • Figure 4 is a schematic flow chart of controlling the elevator car to run to the leveling position in the manner of regenerative energy feedback in the elevator emergency rescue method provided by the embodiment of the present invention
  • Figure 5 is a schematic flow chart of detecting whether the car is in a balanced load state in the elevator emergency rescue method provided by an embodiment of the present invention
  • Figure 6 is a schematic diagram of the flow of controlling the car to run to the leveling position in the elevator emergency rescue method provided by the embodiment of the present invention
  • Figure 7 is a schematic diagram of an elevator emergency rescue device provided by an embodiment of the present invention.
  • the elevator emergency rescue method can be applied to an elevator (straight elevator) system and used to control the elevator car to run to a level when the elevator power grid is abnormal. Tier location.
  • the above-mentioned elevator system includes a main circuit 21 and an emergency rescue device 22.
  • the above-mentioned main circuit includes a main power supply circuit and a driver 211, and the driver 211 (such as a driving integrated machine) passes through the main contactor K1 and the main contactor K1 in the main power supply circuit.
  • the incoming switch QF is connected to the input voltage (for example, city power), that is, the driver 211 is powered by the main power supply circuit and drives the traction motor of the elevator to run.
  • the above-mentioned driver 211 includes a drive circuit and a control circuit (of course, in practical applications, the drive circuit and the control circuit can also be located in separate devices), where the drive circuit consists of a rectifier unit, an inverter unit, a DC bus, a braking unit, etc. It is constructed and driven by the output of the inverter unit to rotate the traction motor, and the control loop is composed of a control unit, a drive unit, and so on.
  • the above-mentioned driver 211 is also communicatively connected with the emergency rescue device 22 through the CAN bus to realize command transmission and status feedback.
  • the emergency rescue device includes a battery 221, an AC/DC charging circuit 222, a DC/AC output circuit 223, an LC filter circuit 224, a DC/DC control power circuit 225, a detection unit 226, and a contactor cut-off unit K5.
  • the emergency rescue device 22 is connected to the main power supply circuit (such as the line switch QF) and charges the battery 221 through the AC/DC charging circuit 222; the direct current output by the battery 221 can be converted into three-phase alternating current through the DC/AC output circuit 223, After being filtered by the LC filter circuit 224, it is output to the power supply terminal of the driver 211, and replaces the mains power supply for the driving circuit; the DC power output by the battery 221 can also be converted into low voltage DC power of different voltages through the DC/DC control power circuit 225 (for example 12V, 24V, 5V, etc.), so as to supply power to different parts of the control loop; the detection unit 226 is connected to the incoming switch QF, and is used to detect the input voltage of the main power supply loop (such as mains), and the contactor cut-off unit K5 is detecting When the unit 226 detects that the input voltage of the main power supply loop is abnormal, it disconnects the main contactor K1 in the main power supply loop, that is, disconnect
  • the corresponding functions of the detection unit 226 and the contactor cutoff unit K5 can also be integrated into the control loop of the drive 211, and the emergency rescue device directly uses the existing UPS (Uninterruptible Power Supply, uninterruptible power supply). instead.
  • UPS Uninterruptible Power Supply, uninterruptible power supply
  • the elevator emergency rescue method of this embodiment includes the following steps:
  • Step S11 Obtain the load state of the car and the position information of the car. Specifically, the load status of the car and the position information of the car can be obtained according to the operating parameters of the elevator system.
  • Step S12 When the input voltage of the main power supply circuit is abnormal, switch the driver 211 to be powered by the emergency rescue device, and control the car to run to the leveling position according to the load state of the car and the position information of the car .
  • the following at least two ways can be used to control the car to run to the leveling position: driving by the emergency rescue device 22, running by the car, and regenerative energy feedback mode.
  • whether the input voltage of the main power supply loop is abnormal can be detected by the detection unit 226 in FIG. 2.
  • different rescue methods are adopted according to the position of the car and the load conditions, which can avoid the problem of emergency rescue failure in a single method under certain circumstances.
  • the emergency rescue device 22 includes a main circuit power supply part (specifically composed of a battery 221, a DC/AC output circuit 223 and an LC filter circuit 224) and an auxiliary power supply part (specifically a battery 221 and a DC/DC control power supply circuit 225).
  • a main circuit power supply part specifically composed of a battery 221, a DC/AC output circuit 223 and an LC filter circuit 22
  • an auxiliary power supply part specifically a battery 221 and a DC/DC control power supply circuit 225.
  • step S12 when the main power supply circuit is connected to the emergency rescue device, if the car is in a balanced load state, the drive circuit of the driver 211 is connected to the main circuit of the emergency rescue device 22
  • the power supply part such as disconnecting the contactor cut-off unit K5, and closing the contactors K2 and K3, so that the main circuit power supply part of the emergency rescue device 22 replaces the input voltage of the main power supply circuit to supply power to the drive circuit of the driver 211, and at the same time, the driver 211
  • the control loop is connected to the auxiliary power supply of the emergency rescue device.
  • the auxiliary power supply of the emergency rescue device 22 replaces the input voltage of the main power supply loop to supply power to the control loop of the driver 211; if the car is in an unbalanced load state, the driver 211 is controlled
  • the circuit is connected to the auxiliary power supply part of the emergency rescue device 22, such as closing the contactor K3, so that the auxiliary power supply part of the emergency rescue device 22 replaces the input voltage of the main power supply circuit to supply power to the control circuit of the driver 211.
  • step S12 when the car is controlled to run to the leveling position according to the load state of the car and the position information of the car, if the car is in a balanced load state, the driver is The drive circuit of 211 drives the car to run to the leveling position; if the car is in an unbalanced load state and the distance between the car and the door zone is less than or equal to the preset value, the control circuit of the driver 211 controls the car to run To the leveling position; if the car is in an unbalanced load state and the distance between the car and the door zone is greater than the preset value, the control loop of the driver 211 controls the car to run to the leveling position in a regenerative energy feedback mode.
  • the car can be controlled to run to the leveling position in three different ways according to the load state of the car and the position information of the car, thereby greatly improving the comfort of passengers during emergency rescue and avoiding a single way In some cases, emergency rescue failed.
  • the car when the car is in an unbalanced load state and the distance between the car and the door zone is less than or equal to the preset value, the car can also use the regenerative energy feedback mode to run to the leveling position, that is, as long as the car In an unbalanced load state, the car is controlled to run to the leveling position in a regenerative energy feedback mode through the control loop of the driver 211.
  • FIG. 3 it is a schematic flow chart of an elevator emergency rescue method provided by another embodiment of the present invention.
  • the method can be specifically executed by the control circuit of the driver 211, or can be executed by the above-mentioned control circuit combined with the emergency rescue device 22, and the method can be It includes the following steps:
  • Step S31 real-time detection of the input voltage of the main power supply circuit, that is, real-time detection of the power supply voltage of the elevator (for example, the mains voltage).
  • Step S32 Determine whether the input voltage of the main power supply loop is abnormal, and execute step S33 when the input voltage of the main power supply loop is abnormal, otherwise return to step S31, and continue to detect the input voltage of the main power supply loop.
  • the above-mentioned abnormal input voltage of the main power supply loop includes phase loss or power failure of the input voltage of the main power supply loop.
  • Step S33 disconnect the driver 211 from the input voltage of the main power supply circuit, and at the same time switch the power supply of the control circuit of the driver 211 to the emergency rescue device, for example, the control circuit obtains power through the DC/DC control power circuit 225 of the emergency rescue device 22 Voltage. Since the control circuit consumes less power, it will not affect the use of the battery 221 of the emergency rescue device 22.
  • Step S34 Determine whether the car is in a balanced load state. If the weight of the car is equal to the weight of the counterweight or the difference between the weight of the car and the weight of the counterweight is within the preset range, it can be confirmed that the car is in a balanced load. State, and execute step S35, otherwise (that is, the difference between the weight of the car and the counterweight exceeds the preset range), execute step S36.
  • Step S35 Connect the drive circuit of the driver 211 to the emergency rescue device, for example, close the contactors K2 and K3 in FIG. 2, and the DC/AC output circuit 223 of the emergency rescue device converts the direct current output by the battery 221 into three-phase alternating current, and After being filtered by the LC filter circuit 224, it is output to the driving circuit of the driver 211. Then, the driving circuit of the driver 211 drives the traction motor to rotate under the control of the control circuit to make the car run to the leveling position. During the rotation of the driving traction motor, the control circuit can automatically perform drive rescue according to the preset speed curve, and after the car reaches the leveling position, the car door and hall door are opened to facilitate the passengers to leave the car.
  • the rotation direction of the traction motor can be determined according to the current position of the car. For example, when the current position of the car is close to the door area of the upper layer, the drive circuit The traction motor can be driven to make the car go up to the leveling position of the door area of the upper floor; when the current position of the car is close to the door area of the next floor, the drive circuit can drive the traction motor to make the car go down The leveling position of the gate area on the first floor.
  • Step S36 Detect the distance between the car and the door zone, and execute step S37 when the distance between the car and the door zone is less than or equal to the preset value, otherwise execute step S38.
  • step S37 when the weight of the car is greater than the weight of the counterweight, the distance between the car and the door area of the next floor of its current position can be detected.
  • the weight of the car is less than the weight of the counterweight, the car is detected The distance to the door area of the upper level from its current location.
  • other methods can also be used to detect the distance between the car and the door zone, such as driving pulses of the traction motor.
  • Step S37 Control the car to run to the leveling position.
  • the emergency rescue device 22 only supplies power to the control loop of the driver 211, such as ⁇ 12V, 24V, 5V power supply required by the control loop. That is, when the weight of the car is greater than the weight of the counterweight, the car is controlled to slide down to the leveling position of the door area of the next floor. When the weight of the car is less than the weight of the counterweight, the car is controlled to slide up to The leveling position of the door area of the upper floor, and after the car reaches the leveling position, open the car door and hall door to facilitate passengers to leave the car.
  • Step S38 Control the car to run to the leveling position in the regenerative energy feedback mode.
  • the emergency aid device 22 only supplies power to the control loop of the driver 211, such as ⁇ 12V, 24V, 5V power supply required by the control loop.
  • the car is controlled to descend to the leveling position of the door area of the next floor.
  • the car is controlled to move up. Go to the leveling position of the door area of the upper floor, and after the car reaches the leveling position, open the car door and hall door so that passengers can leave the car.
  • the above emergency rescue method for elevators uses different rescue methods by detecting the position of the car and the load when the input voltage of the main power supply circuit is disconnected. For example, when the car is in a balanced load state, the emergency rescue device is directly powered by the emergency rescue device to drive the car.
  • the car reaches the leveling position; when the car is in an unbalanced load state and the distance between the car and the door zone is less than or equal to the preset value, the car is controlled to run to the leveling position in a rolling operation mode; When the load is balanced and the distance between the car and the door area is greater than the preset value, the car is controlled to run to the leveling position by regenerative energy feedback, which greatly improves the comfort of passengers during emergency rescue and can avoid a single method In some cases, emergency rescue failed.
  • control car in the above step S38 runs to the leveling position in a regenerative energy feedback mode, which may specifically include the following steps:
  • Step S381 Short-circuit the three-phase stator windings of the traction motor through mechanical or electronic star sealing (by turning on the three-phase lower arm of the inverter module in the drive circuit), so that the three-phase stator windings of the traction motor can be passed through.
  • the phase stator winding consumes the kinetic energy of the rotor of the traction motor.
  • the brake of the traction motor is opened, and at the same time, the star sealing (that is, the short-circuit path between the three-phase windings of the traction motor is disconnected) to make the car roll.
  • Step S382 After the brake of the traction motor is opened, the rotation speed of the traction motor is sampled in real time, and the sampling value of the rotation speed at the previous moment is used as the command speed closed-loop control at the current moment (the control loop outputs to the inverter module in the drive loop). Pulse width modulation signal) the rotation speed of the traction motor until the rotation speed of the traction motor reaches the preset rescue speed. In this step, the characteristics of natural inertia are used to slowly accelerate the car to achieve speed rollback.
  • Step S383 Close-loop control of the traction motor to run at the preset rescue speed until the car reaches the preset position of the door zone.
  • the closed-loop control process can refer to the closed-loop operation control process of the existing motor.
  • Step S384 After the car reaches the preset position of the door zone, the traction motor is controlled to run to the leveling position with the preset deceleration curve closed-loop, that is, the car is controlled to gradually decelerate to zero speed and creep at zero speed, thereby increasing Comfort.
  • the above-mentioned operation of running to the leveling position in the manner of regenerative energy feedback can also adopt the solution disclosed in the Chinese patent application with the document number CN 108657893.
  • the solution of this embodiment uses the speed rollback vector control mode in step S182 instead of the switch control mode, and in the power generation mode using natural inertia, it not only avoids The problem that the control voltage is not easy to select when the open-loop control mode is adopted, and the problem of different speeds under the corresponding open-loop output voltage obtained by the open-loop control in different car systems is avoided.
  • the generated power of the traction motor can also be obtained, and when the generated power of the traction motor exceeds the preset At the limit value, the braking torque is controlled so that the generated power does not exceed the preset limit value.
  • the output current of the traction motor can be sampled in real time, and the generated power of the traction motor can be obtained according to the output current and the rotation speed of the traction motor.
  • the power generation can be calculated by the following formula (1):
  • P is the generated power
  • k is the generated power coefficient
  • ⁇ r is the speed of the traction motor
  • i q is the torque component of the output current.
  • P m is the power loss of the motor
  • P Loss is the power loss of the drive circuit
  • P bus is the absorbed power required for the DC bus voltage to rise.
  • the value of the DC bus voltage rise is generally set to the bus voltage value corresponding to the rated input voltage.
  • the 380V elevator system is set to 540V
  • the 220V elevator system is set to 310V.
  • whether the car is in a load balance state can be determined in the following manner:
  • Step S341 Short-circuit the three-phase stator windings of the traction motor by means of mechanical star sealing or electronic star sealing, and open the brake of the traction motor after the star sealing is successful.
  • Step S342 Sampling the rotation speed of the traction motor, and when the rotation speed of the traction motor is equal to zero, confirm that the car is in a load balance state, and when the rotation speed is greater than zero, confirm that the car is in a non-load balance state.
  • the relationship between the weight of the car and the weight of the counterweight can also be judged according to the rolling direction of the car, so that when judging the distance between the car and the door zone, it is determined to select the door zone of the upper floor. It is the door area on the next floor to judge the distance.
  • the output current of the traction motor can be sampled while sampling the rotation speed of the traction motor.
  • ⁇ r is the speed of the traction motor
  • i q is the torque component of the output current
  • a weighing device can also be directly installed in the car, and the weighing device can be used to determine whether the car is in a load balance state, but this solution requires additional hardware equipment.
  • the car can be controlled to slide to the leveling position in the following manner:
  • Step S371 Short-circuit the three-phase stator windings of the traction motor by means of mechanical star sealing or electronic star sealing, and open the brake of the traction motor after the star sealing is successful to make the car roll.
  • Step S372 Start timing after the car reaches the door zone, and control the brake of the traction motor when the timing reaches the preset time, so that the car brakes to run to the leveling position.
  • the above-mentioned preset time can be set according to different car and motor brake mechanisms, so that the car stops accurately to the leveling position.
  • This embodiment relies on natural inertia braking to make the car reach the leveling position. Since the car is closer to the door area, the combination of mechanical star sealing or electronic star sealing can make the car move at a lower speed and then pass the brake. Make the car decelerate and run to the leveling position without causing panic among the passengers in the car.
  • the embodiment of the present invention also provides an emergency rescue device, which can cooperate with the main circuit of the elevator system to realize the emergency rescue of the elevator.
  • the emergency rescue device 22 of this embodiment is communicatively connected with the driver 211 for driving the traction motor in the main circuit 21 of the elevator system, and the driver 211 includes a drive circuit and a control circuit;
  • the emergency rescue device includes Battery 221, AC output circuit (DC/AC) 223, LC filter circuit 224, control power circuit (DC/DC) 225, detection unit 226, and contactor cut-off unit K5.
  • the output terminal of the battery 221 is connected to the AC output circuit 223 and the control power circuit 225 via the first contactor K3, and the output terminal of the AC output circuit 223 is connected to the driver 211 via the LC filter circuit 224 and the second contactor K2.
  • the control power circuit 225 is connected to the control circuit of the driver 211.
  • the detection unit 226 is connected to the main power supply circuit (such as the line switch QF in the main power supply circuit) that supplies power to the driver 211 to detect the voltage of the main power supply circuit, and is disconnected by the contactor cut-off unit K5 when the main power supply circuit voltage is abnormal.
  • the main contactor K1 in the main power supply loop, and the first contactor K3 is closed at the same time.
  • the aforementioned emergency rescue device may further include a charging unit (AC/DC) 222, which is connected to the main power supply circuit and converts the alternating current of the main power supply circuit into direct current, thereby charging the storage battery 221.
  • AC/DC charging unit
  • the emergency rescue device in this embodiment belongs to the same concept as the elevator emergency rescue method in the corresponding embodiments of FIGS. 1, 3-6.
  • the specific implementation process see the corresponding method embodiment, and the technical features in the method embodiment are described in All the embodiments of the emergency rescue device are correspondingly applicable, and will not be repeated here.
  • the embodiment of the present invention also provides an elevator emergency rescue equipment 7.
  • the equipment 7 can be specifically composed of an elevator controller (for example, the driver 211 of FIG. 2) or an elevator controller combined with the emergency rescue device 22 of FIG. 2, as shown in FIG.
  • the elevator emergency rescue equipment 7 includes a memory 71 and a processor 72.
  • the memory 71 stores a computer program that can be executed by the processor 72, and the processor 72 implements the steps of the elevator emergency rescue method as described above when the processor 72 executes the computer program.
  • the elevator emergency rescue equipment 7 in this embodiment belongs to the same concept as the elevator emergency rescue method in the corresponding embodiments of Figs. 1-6.
  • the specific implementation process is detailed in the corresponding method embodiment, and the technical features in the method embodiment are described in All the embodiments of this device are correspondingly applicable, and will not be repeated here.
  • the embodiment of the present invention also provides a computer readable storage medium, the storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the elevator emergency rescue method described above are realized.
  • the computer-readable storage medium in this embodiment belongs to the same concept as the elevator emergency rescue method in the corresponding embodiment of FIGS. 1-6.
  • the specific implementation process is detailed in the corresponding method embodiment, and the technical features in the method embodiment are described in All the embodiments of this device are correspondingly applicable, and will not be repeated here.
  • the size of the sequence number of each step in the foregoing embodiment does not mean the order of execution.
  • the execution sequence of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present application.
  • Those skilled in the art can clearly understand that, for the convenience and conciseness of description, only the division of the above functional units and modules is used as an example. In practical applications, the above functions can be allocated to different functional units and modules as needed.
  • the module is complete.
  • the functional units and modules in the embodiments can be integrated in a processor, or each unit can exist alone physically, or two or more units can be integrated in one unit.
  • the above-mentioned integrated units can be hardware-based Formal realization can also be realized in the form of software functional units.
  • the functional units in the various embodiments of the present application may be integrated into one processor, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the above-mentioned integrated unit can be implemented in the form of hardware or software functional unit.
  • the integrated module/unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • this application implements all or part of the processes in the above-mentioned embodiments and methods, and can also be completed by instructing relevant hardware through a computer program.
  • the computer program can be stored in a computer-readable storage medium. When the program is executed by the processor, it can implement the steps of the foregoing method embodiments.
  • the computer program includes computer program code, and the computer program code may be in the form of source code, object code, executable file, or some intermediate forms.
  • the computer-readable medium may include: any entity or interface switching device capable of carrying the computer program code, recording medium, U disk, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), electrical carrier signal, telecommunications signal, and software distribution media.
  • any entity or interface switching device capable of carrying the computer program code
  • recording medium U disk, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), electrical carrier signal, telecommunications signal, and software distribution media.

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mechanical Engineering (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Elevator Control (AREA)

Abstract

La présente invention concerne un procédé de secours d'urgence, un appareil et un dispositif destinés à un ascenseur, et un support d'enregistrement lisible par ordinateur. Selon ce procédé, un ascenseur comprend un circuit principal (21) et un appareil de secours d'urgence (22), le circuit principal (21) comprenant un circuit d'alimentation électrique principal et un circuit d'attaque (211), le circuit d'attaque (211) étant alimenté par le circuit d'alimentation électrique principal et entraînant le fonctionnement d'un moteur électrique de traction de l'ascenseur. Le procédé comprend les étapes consistant à : acquérir un état de charge d'une cabine et des informations de position de la cabine ; et lorsqu'une tension d'entrée d'un circuit d'alimentation électrique principal est anormale, commuter le circuit d'attaque (211) devant être alimenté par. le dispositif de secours d'urgence (22), et commander à la cabine, en fonction de l'état de charge de la cabine et des informations de position de la cabine, de se déplacer vers une position d'arrivée. Au moyen de ce procédé, le confort d'un passager est considérablement amélioré pendant un secours d'urgence, et un défaut de secours d'urgence peut être évité.
PCT/CN2019/113446 2019-09-30 2019-10-25 Procédé de secours d'urgence, appareil et dispositif pour ascenseur, et support d'enregistrement lisible par ordinateur Ceased WO2021062902A1 (fr)

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CN115490103A (zh) * 2022-10-25 2022-12-20 菱王电梯有限公司 一种封星控制方法及装置
CN115650002A (zh) * 2022-10-25 2023-01-31 菱王电梯有限公司 一种电梯用电子封星装置及复合控制方法
CN116184180A (zh) * 2022-12-08 2023-05-30 永大电梯设备（中国）有限公司 电梯用封星接触器检测方法及装置
CN116281463A (zh) * 2023-03-21 2023-06-23 苏州汇川控制技术有限公司 电梯封星控制方法、设备、系统及存储介质
CN116534683A (zh) * 2023-04-18 2023-08-04 天水二一三电器集团有限公司 一种电梯用一体式智能封星接触器
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CN113960471A (zh) * 2021-09-30 2022-01-21 日立电梯（中国）有限公司 一种变频器自动调试方法
CN114229649A (zh) * 2021-12-29 2022-03-25 浙江屹立电梯有限公司 一种节能式电梯应急救援方法
CN114776167A (zh) * 2022-04-24 2022-07-22 苏州江南嘉捷光机电技术有限公司 一体化自动门控制装置及具有其的监控平台
CN114776167B (zh) * 2022-04-24 2024-05-31 苏州江南嘉捷光机电技术有限公司 一体化自动门控制装置及具有其的监控平台
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CN115075685B (zh) * 2022-07-19 2024-03-12 安徽海尚变频技术有限公司 一种提高门机精准度的提前抱闸控制方法
CN115285812A (zh) * 2022-08-16 2022-11-04 巨立电梯股份有限公司 一种制动装置、制动装置检测方法及控制方法
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CN116553324A (zh) * 2023-05-09 2023-08-08 浙江飞亚电梯有限公司 电梯控制方法
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