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Five-stage S-curve acceleration and deceleration control method based on particle swarm optimization algorithm

A particle swarm optimization, acceleration and deceleration control technology, applied in the direction of electric speed/acceleration control, etc., can solve the problems of reducing the service life, affecting the safe and reliable operation of the system, and increasing the fatigue damage of the shaft.

Inactive Publication Date: 2014-10-08
BEIJING UNIV OF TECH
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Problems solved by technology

[0002] Since the printing machine is driven by a synchronous belt, the rigidity of the synchronous belt is small, which causes torsional vibration of the printing machine system when it starts, changes speed and is disturbed by external machinery.
Torsional vibration is very destructive to the mechanical system, increasing the fatigue damage of the shaft, reducing the service life, and affecting the safe and reliable operation of the system

Method used

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  • Five-stage S-curve acceleration and deceleration control method based on particle swarm optimization algorithm
  • Five-stage S-curve acceleration and deceleration control method based on particle swarm optimization algorithm
  • Five-stage S-curve acceleration and deceleration control method based on particle swarm optimization algorithm

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Embodiment Construction

[0034] The present invention is a five-stage S-curve acceleration and deceleration control method based on particle swarm optimization, and its control flow refers to figure 1 , for the T-shaped input speed curve of the mechanical system, drive its motion, collect the speed input and output curve, and identify the system transfer function. According to the transfer function, the particle swarm optimization algorithm is used to optimize the parameters of the five-stage S-curve offline, and then the five-stage S-curve is used for semi-closed-loop control of the mechanical system, which greatly suppresses the torsional vibration of the system.

[0035] figure 2 a is the input-output curve under the T-shaped input speed curve. It can be seen that when the target output value is 50,000 pulses / s, the vibration peak value reaches 83,000 pulses / s, the maximum overshoot is 86%, and the adjustment time is 1.8s. According to the input speed curve and the output speed curve, the transfe...

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Abstract

The invention relates to a five-stage S-curve acceleration and deceleration control method based on a particle swarm optimization algorithm, and belongs to the technical field of drive control methods for the starting process of synchronous belt transmission machines. For the torsional vibration problems existing in the starting process of the synchronous belt transmission machines, a five-stage S-curve acceleration and deceleration method is used for planning the input signals of motor starting to restrain system torsional vibration. Meanwhile, in an offline state, the particle swarm optimization algorithm is used for optimizing a five-stage S curve to obtain an optimal parameter, then the obtained optimal S curve is used for conducting semi-closed loop control on the system, and the effectiveness and the feasibility of the control method are proved through experimental results. While the system torsional vibration is greatly restrained, small dynamic performance of the system is sacrificed, and free-vibration response of the system can be achieved.

Description

technical field [0001] The invention relates to a five-stage S-curve acceleration and deceleration control method based on a particle swarm optimization algorithm, and belongs to the technical field of drive control methods in the start-up process of synchronous belt transmission machinery. Background technique [0002] Since the printing press adopts synchronous belt transmission during transmission, the synchronous belt has a small rigidity, which causes torsional vibration of the printing press system when it starts, changes speed and is disturbed by external machinery. Torsional vibration is very destructive to the mechanical system, increases the fatigue damage of the shaft, reduces the service life, and affects the safe and reliable operation of the system. [0003] For the above reasons, a five-stage S-curve acceleration and deceleration control method is used to plan the motor input signal vibration suppression, but choosing accurate curve parameters can greatly redu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D13/62
Inventor 蔡力钢张森刘志峰许博
Owner BEIJING UNIV OF TECH
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