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A control method for the stable operation of the magnetic suspension guidance system of a linear elevator

A technology of a guidance system and a control method, applied in the field of elevator control, can solve problems such as friction, weakening of car vibration, and inability to meet linear elevators.

Inactive Publication Date: 2015-08-19
SHENYANG POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional guide shoes have many shortcomings and cannot meet the needs of linear elevators. The traditional guide system cannot actively suppress and weaken the vibration of the car, and there is friction, which cannot meet the high-speed operation requirements of elevator systems in high-rise and even super high-rise buildings.

Method used

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  • A control method for the stable operation of the magnetic suspension guidance system of a linear elevator
  • A control method for the stable operation of the magnetic suspension guidance system of a linear elevator
  • A control method for the stable operation of the magnetic suspension guidance system of a linear elevator

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Embodiment 1

[0156] The system parameters of the elevator magnetic levitation guidance system are as follows: the total mass of the elevator car m=500kg, the supporting electromagnet core area S=0.65*0.03m 2 , output the expected suspension air gap y=0.004m; guide electromagnet core area A=0.5*0.02m 2 , The number of turns of the guide electromagnet winding M=300 turns.

[0157] Based on the above system parameters, the system simulation conditions: (a) put the change of the simulated system parameters into the single maglev guidance system model when the amplitude is 0.00004m periodic disturbance, and simulate the system; (b) when passengers enter and exit the car, set the passenger Walking in the elevator car produces an equivalent horizontal step disturbance force of 2000N, which is added at the time of 0.5s to 0.6s, and at the same time, the periodical disturbance with an amplitude of 0.0004m is added to simulate the system parameter changes into the single maglev guidance system model...

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Abstract

The invention relates to a control method for the stable operation of a magnetic suspension guidance system of a linear elevator. Through the combination of fuzzy control, self-adaptation control and sliding-mode control, the stable operation of the magnetic suspension guidance system of the linear elevator is realized. The control method has the advantages that by the use of an integral sliding-mode switching surface, the steady-state error is eliminated, and the steady-state precise performance of the single electromagnetic suspension guidance system is improved. On the basis of the integral sliding-mode control, the fuzzy self-adaptation controller is designed, the fuzzy control quantity replaces equivalent control, and the self-adaptation control is adopted to estimate and adjust the fuzzy clear gravity center value, and meanwhile, the switching control is adopted to eliminate the error of the ideal control quantity and the fuzzy control quantity, so that the fast and stable operation of the single electromagnetic suspension guidance system of the linear elevator is realized.

Description

technical field [0001] The invention belongs to the technical field of elevator control, and in particular relates to an operation control method of a magnetic levitation guide system for a linear elevator. Background technique [0002] Today more and more high-rise buildings are built in Asia and other parts of the world, such as Taipei International Finance Center, Kuala Lumpur Petronas Twin Towers. The Burj Khalifa in Dubai, United Arab Emirates, has a total of 160 floors and an overall building height of 828 meters, 320 meters higher than the Taipei International Financial Center. This is the first building in human history that exceeds 800 meters. This type of architecture presents a formidable challenge to elevator system design engineers. Due to the rise of high-rise buildings, higher requirements are placed on the elevator system. The focus of high-rise buildings is on the improvement of the transportation system. At the same time, there is also a technical thresho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B7/02B66B7/04B66B1/06
Inventor 胡庆杜洪斌胡雨薇于海雁
Owner SHENYANG POLYTECHNIC UNIV
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