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Elevator starting control method and system

An elevator and motor torque technology, which is used in elevators, transportation and packaging, elevators and other directions in buildings, can solve the problem of inability to take into account the starting effect, and achieve the effect of preventing the car from rolling, improving comfort, and suppressing vibration.

Inactive Publication Date: 2019-07-05
SHENZHEN HPMONT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides an elevator startup control method and system, aiming to solve the problem that the startup effect cannot be balanced when the elevator starts under different loads

Method used

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  • Elevator starting control method and system
  • Elevator starting control method and system
  • Elevator starting control method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] This embodiment provides an elevator startup control method, such as figure 1 , including the following steps:

[0063] Step 101: using the first PI regulator to compensate the motor torque according to the given speed and the current feedback speed;

[0064] Step 102: Check whether the movement of the elevator exceeds the preset first threshold after the elevator brake is opened, and if so, use the second PI regulator to compensate the motor torque according to the current angle of the encoder and the angle of the previous compensation, and at the same time increase Increase the PI adjustment parameter of the first PI regulator; otherwise, maintain the current PI adjustment parameter of the first PI regulator to compensate the motor torque until the start-up process ends;

[0065] Step 103: In the process of using the second PI regulator to compensate the motor torque, detect whether the elevator vibrates, and if so, reduce the PI adjustment parameters of the first PI...

Embodiment 2

[0092] The elevator at least includes a car, a guide system, a traction system 21, a weight balance system, and an electric drive system. Among them, the main function of the guiding system is to limit the freedom of movement of the car and the counterweight, so that the car and the counterweight can only move up and down along the guide rail. The main function of the traction system 21 is to output and transmit power to make the elevator run. The traction system mainly consists of a traction motor 211, a traction wire rope, a guide wheel, and an anti-rope pulley. The main function of the weight balance system is to relatively balance the weight of the car. During the operation of the elevator, the weight difference between the car and the counterweight can be kept within the limit, so as to ensure the normal traction transmission of the elevator; the system is mainly composed of the counterweight and the weight Compensation device composition. The function of the electric d...

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Abstract

The invention relates to the technical field of elevator control, in particular to an elevator starting control method and system. The method comprises the following steps that the torque of a motor is compensated by a first PI adjuster, whether the movement of an elevator exceeds a preset first threshold value or not is detected after an elevator brake is opened, if yes, the torque of the motor is compensated by a second PI adjuster, and meanwhile, PI adjusting parameters of the first PI adjuster and PI adjusting parameters of the second PI adjuster are increased; otherwise, the current PI adjusting parameters of the first PI adjuster is kept to compensate the torque of the motor until the starting process is ended; and when the second PI adjuster is used for compensating the torque of the motor, whether the elevator vibrates or not is detected, and if yes, the PI adjusting parameters of the first PI adjuster and the PI adjusting parameters of the second PI adjuster are reduced. The elevator control method and system can be used for detecting and adjusting different load conditions in the elevator starting process, a stable state can be rapidly achieved when the elevator is started under any load condition, and the comfort of passengers is improved.

Description

technical field [0001] The invention relates to the technical field of elevator control, in particular to an elevator startup control method and system. Background technique [0002] At the moment of starting the elevator, due to the difference in weight between the elevator car side and the elevator counterweight side, at the moment when the elevator brake is opened, due to the difference in weight, the elevator car will slide for a certain distance, which will cause passengers to lose weight when the elevator is running. The comfort of the car becomes worse, which affects the riding experience. [0003] In order to solve the car slipping problem, the existing elevator control system generally adds an analog weighing device. Before the elevator runs, the weight of the car is measured by the load cell, and then an initial torque is output through parameter adjustment. Applied to the motor before the brake is opened, so as to overcome the influence of rolling. However, in a...

Claims

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Application Information

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IPC IPC(8): B66B1/30B66B1/34B66B5/00
CPCB66B1/304B66B1/3423B66B5/0018B66B11/04
Inventor 何志明曹力研郑伟
Owner SHENZHEN HPMONT TECH
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