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Elevator control method and device, elevator and computer readable storage medium

An elevator control and elevator technology, applied in elevator control methods, elevators and computer-readable storage media, and device fields, can solve problems such as large inrush current, damage to star-sealing relays, and affecting the life of star-sealing relays, so as to improve the service life Effect

Pending Publication Date: 2022-03-25
SUZHOU INOVANCE CONTROL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the permanent magnet synchronous motor runs at a high speed, the back electromotive force voltage on the motor power line is very high, and the motor power line is shorted through the star-sealing relay. Since the voltage at both ends of the power line is high and the internal resistance of the motor is small, There will be a large inrush current
The impact current directly affects the life of the star-sealing relay, and in severe cases directly damages the star-sealing relay

Method used

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  • Elevator control method and device, elevator and computer readable storage medium
  • Elevator control method and device, elevator and computer readable storage medium
  • Elevator control method and device, elevator and computer readable storage medium

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Embodiment Construction

[0039] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0040] The main solution of the embodiment of the present invention is: when the power-off detection unit detects that the elevator is powered off, the main controller controls the discharge of the capacitor, and drives the power inverter unit in the first closing stage after the elevator is powered off. Control the elevator door to close; obtain the bus voltage value detected by the bus voltage detection circuit; when the bus voltage value is less than the first voltage threshold, start the star-sealing relay and short-circuit the permanent magnet synchronously in the second closing stage after the elevator is powered off A motor to control the closing of the elevator doors.

[0041] As an implementation, refer to figure 1 , figure 1 It is a schematic diagram of the hardware architecture of the elevator control dev...

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Abstract

The invention discloses an elevator control method and device, an elevator and a computer readable storage medium, and the elevator control method comprises the steps that when a power failure detection unit detects that the elevator is powered off, a main controller controls a capacitor to discharge so as to drive a power inversion unit to control an elevator door to be closed at a first closing stage after the elevator is powered off; acquiring a bus voltage value detected by the bus voltage detection circuit; and when the bus voltage value is smaller than the first voltage threshold value, the star sealing relay is started to be in short circuit with the permanent magnet synchronous motor at the second closing stage after the elevator is powered off so as to control the elevator door to be closed. The service life of the star sealing relay can be prolonged.

Description

technical field [0001] The present invention relates to the technical field of elevators, in particular to an elevator control method and device, an elevator and a computer-readable storage medium. Background technique [0002] With the rapid development of modern cities, the application of elevators has been fully promoted. Due to the particularity of its application scenarios, the requirements for reliability are relatively high. In some special cases, such as when the elevator control system fails when the power is cut off, the elevator door closes quickly under the action of factors such as inertia due to the loss of electronic driving force, which may easily cause a door-closing accident and a potential safety hazard. [0003] The door opening and closing control of the elevator is realized by the permanent magnet synchronous motor driven by the frequency converter of the door machine. The permanent magnet synchronous motor will generate a certain voltage back electromo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66B13/14
CPCB66B13/146Y02B50/00
Inventor 高尚董晓楠张建秋
Owner SUZHOU INOVANCE CONTROL TECH CO LTD
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