Method for determining elevator speed control coefficient

A speed control, elevator technology, applied in the field of determining or adjusting the elevator speed control coefficient

Active Publication Date: 2022-02-18
HITACHI YUNGTAY ELEVATOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The former requires engineers to explore for a long time, while the latter is similar to the former. Although the general rule of thumb can shorten the time of exploration to a limited extent, the general rule of thumb used in th

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  • Method for determining elevator speed control coefficient
  • Method for determining elevator speed control coefficient
  • Method for determining elevator speed control coefficient

Examples

Experimental program
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Embodiment Construction

[0024] : The elevator device usually has a control module to control the operation of the elevator device, especially the ascending, descending or stationary of the elevator car, thereby transporting passengers to the destination floor.

[0025] The control module mainly includes elevator process controller and actuator (generally called frequency converter). The inverter has a power converter, a microprocessor, a motor drive circuit, a motor current sampling circuit, and an encoder speed detection circuit. Power converters are used to convert external AC power to DC power. The inverter microprocessor mainly uses the encoder speed detection module and the motor current sampling circuit to calculate and obtain the elevator speed and current and the S-Curvevelocity profile generated by the elevator process controller, and calculate and output the voltage required for the motor drive. command to drive the elevator up and down.

[0026] Generally speaking, the inverter is divide...

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Abstract

The invention discloses a method for determining an elevator speed control coefficient, which can obtain a better value of a control coefficient in a PI (Proportional-Integral) controller according to a frequency response gain and a phase oscillation condition of a closed loop control model of an elevator system and a boundary condition set by an engineer.

Description

technical field [0001] The present invention relates to a method for determining or adjusting an elevator speed control coefficient. In particular, it relates to a method of determining or adjusting an elevator speed control coefficient. Background technique [0002] In the technical field of elevator control, a motor can generally be controlled by means of a proportional integral (PI) controller or a proportional integral derivative (PID) controller, thereby controlling the speed at which the elevator car runs. For related technical documents, reference may be made to, for example, US4684856, US5880416, CN109477479A, CN103079978A and so on. [0003] The operating principle of a typical PI or PID controller is to feed back the system output signal by means of a closed-loop control system, thereby comparing it with the control command signal, and generating an error signal to correct the system input signal to achieve the target demand of the control command. . This method...

Claims

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Application Information

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IPC IPC(8): B66B1/28
CPCB66B1/285Y02B50/00
Inventor 何文杰游崇洲张汉铨颜睿庭陈至杰李文雄
Owner HITACHI YUNGTAY ELEVATOR CO LTD
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