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Method for identifying maximum current of platform door motor under wind pressure and platform door control method

A technology of maximum current and identification method, which is applied in wind power generation, stations, door/window accessories, etc., can solve the problems of easily pinching passengers, potential safety hazards, large clamping force, etc., and achieve the effect of avoiding accidental injury of passengers and overcoming door resistance

Active Publication Date: 2022-05-17
GUANGZHOU METRO GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this adjustment method requires manual adjustment according to the wind pressure, which is cumbersome to operate. Once the personnel do not adjust in time (usually it is difficult to adjust according to the wind pressure in time), the platform door cannot be closed in time; the other is that there are potential safety hazards , when the wind pressure formed by the piston wind in the tunnel is weakened, the clamping force formed by the closing of the platform door due to the untimely adjustment is too large and it is easy to pinch passengers

Method used

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  • Method for identifying maximum current of platform door motor under wind pressure and platform door control method
  • Method for identifying maximum current of platform door motor under wind pressure and platform door control method
  • Method for identifying maximum current of platform door motor under wind pressure and platform door control method

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Embodiment 1

[0036] Such as figure 1 As shown, this embodiment relates to a method for identifying the maximum current of a platform door motor under wind pressure under the influence of obstruction. , do not make the closing thrust of the platform door exceed the standard due to the adjustment of the working power of the motor, and avoid the excessive clamping force caused by the closing of the platform door, which will cause pinching injuries to passengers. The method for identifying the maximum current of the platform door motor under wind pressure includes the following steps:

[0037] Step S1: Turn on the current loop of the motor. The initial value of the current loop current is a mA (milliampere), usually set a=100mA, and the motor enters the torque mode by turning on the current loop of the motor. After the current loop is turned on, judge whether the motor starts normally. The normal start of the motor means that the output shaft (rotor) of the motor can rotate. Otherwise, it is ...

Embodiment 2

[0052] Such as figure 2 As shown, this embodiment proposes a platform door control method based on Embodiment 1 to deal with the solution to the situation that the platform door is blocked by wind pressure and other factors, including the following steps:

[0053] Step S4: According to Embodiment 1, the maximum allowable operating current I of the motor is obtained max Finally, control the motor to run normally, so that the platform door can be closed according to the door-closing stroke plan under the drive of the motor. The door-closing stroke plan of the platform door is as follows: image 3 As shown, this figure is also a specific example of the working principle of the motor when the platform door is normally closed, image 3 The screen door in the platform is also a kind of platform door. In the figure, the abscissa represents the time (seconds), correspondingly, it can also represent the displacement of the platform door, and the acceleration, constant speed, deceler...

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Abstract

The present invention relates to a method for identifying the maximum current of a platform door motor under wind pressure and a method for controlling the platform door. The method for identifying the maximum current of a platform door motor under wind pressure includes the following steps: Step S1: Open the current loop to determine whether the motor starts normally , if it starts normally, then go to the next step; Step S2: Increase the current loop current one by one to judge whether the motor starts normally, if so, go to the next step, otherwise continue to increase the current loop current; Step S3: According to the normal start of the motor According to the currently set current loop current, calculate the maximum current allowed by the motor according to the corresponding formula. The present invention can well calculate the maximum allowable operating current of the motor when the platform door is blocked due to wind pressure and other factors, and realizes the platform door control method to overcome the wind pressure so that the platform door can be opened and closed safely and completely, and at the same time It will not make the clamping force generated when the platform door is closed because the current is adjusted to be too large, so as to avoid accidentally injuring passengers.

Description

technical field [0001] The invention relates to the technical field of subway platform door control, in particular to a method for identifying the maximum current of a platform door motor under wind pressure and a method for controlling the platform door. Background technique [0002] The subway has become an important means of transportation for citizens. Among them, the platform door plays the role of isolating passengers from the subway / subway track, which greatly guarantees the safety of passengers. During the daily normal use of the platform door, there will be potential safety hazards caused by external interference. External interference mainly includes interference from foreign objects, geographical factors such as earthquakes, and wind pressure interference. Wind pressure is usually caused by tunnel piston wind. Wind pressure interference is A common distraction. When the subway increases the traffic density and gaps in order to increase the passenger carrying capa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E05F15/40E05F15/632B61B1/02
CPCE05F15/40E05F15/632B61B1/02E05Y2900/404Y02E10/72
Inventor 靳守杰贾建平俞军燕马坚生陈朝晖刘栋材闵付兵李文轩杜新恒张林鸿胡志涛
Owner GUANGZHOU METRO GRP CO LTD
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