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Staircase power control system

A power control and escalator technology, applied in the field of escalator control, can solve problems such as unrealizable optimized power output, inability to feed back regenerative electric energy during the power generation stage, and failure to realize optimized power control, etc., so as to achieve reasonable escalator power control, optimized power optimization control, and realization of The effect of power feedback

Active Publication Date: 2014-04-16
HITACHI ELEVATOR GUANGZHOU ESCALATOR
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. The full frequency conversion speed regulation control method saves energy by speed regulation. The whole process of escalator operation is controlled by the frequency converter, but the energy is consumed by the high-power resistor when the motor generates power. Control, the control power of the motor is only related to the output current of the inverter, and the regenerative power cannot be fed back during the power generation stage
[0004] 2. Bypass frequency conversion control mode, the starting and acceleration process of the escalator is controlled by the frequency converter, the motor is connected to the grid at the rated speed, and the regenerative energy can be fed back, but the optimized power output cannot be realized

Method used

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  • Staircase power control system
  • Staircase power control system

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Embodiment Construction

[0021] In order to facilitate the understanding of the present invention, the following will be described in conjunction with the accompanying drawings.

[0022] The present invention proposes an escalator power control method, please refer to figure 1 , including the steps:

[0023] 101. It is detected that the escalator is running downwards;

[0024] 102. Detect the load information of the escalator;

[0025] 103. Determine whether the load meets the power generation conditions;

[0026] It is judged whether the load of the escalator meets the power generation condition, if yes, go to step 104; if not, go to step 105.

[0027] 104. Perform power feedback control;

[0028] 105. Perform power optimization control.

[0029] The present invention is applied to the power control when the escalator is going down. When the escalator is going down, the load information of the escalator is detected. When the load information reaches the power generation condition, the electric e...

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Abstract

This invention provides a staircase power control system which comprises a three phase power supply, a microcomputer controller, a rotary encoder, a first contactor, a transducer, a second contactor and a motor. The staircase power control system also comprises a third contactor. The three phase power supply is connected to the motor through the first contactor and the third contactor. The transducer is connected to the microcomputer controller. The staircase power control system can not only realize the power optimization control during the descending of the staircase, but also realize electric energy feedback at the power generation stage, and saves energy.

Description

technical field [0001] The invention relates to the field of escalator control, in particular to an escalator power control system. Background technique [0002] The existing escalators with microcomputer frequency conversion control mode have the following two energy-saving operation modes, and their characteristics are as follows: [0003] 1. The full frequency conversion speed regulation control method saves energy by speed regulation. The whole process of escalator operation is controlled by the frequency converter. However, when the motor generates power, the energy is consumed through high-power resistors. The disadvantage is that it does not achieve optimal power during the light load stage. Control, the control power of the motor is only related to the output current of the inverter, and the regenerative electric energy cannot be fed back during the power generation stage. [0004] 2. Bypass frequency conversion control mode, the starting and acceleration process of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B25/00
CPCY02B50/225Y02B50/00
Inventor 陈志文张大明陈永金
Owner HITACHI ELEVATOR GUANGZHOU ESCALATOR
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