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Active balance control system and method for time-delayed rotor based on smith model and single neuron pid

A single-neuron, active balancing technology, applied in general control systems, control/regulation systems, simulators, etc., to achieve the effects of shortening control time, eliminating time lag effects, and improving control efficiency

Active Publication Date: 2021-03-09
HEFEI UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to overcome the deficiencies in the prior art, the present invention provides a time-delayed rotor active balance control system and method based on the Smith model and single neuron PID, in order to overcome the traditional Smith control's high precision and balance requirements on the system model The defect of low efficiency can improve the control efficiency and realize the efficient control of rotor active balance, and the control method can be applied to the condition of large time lag

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  • Active balance control system and method for time-delayed rotor based on smith model and single neuron pid
  • Active balance control system and method for time-delayed rotor based on smith model and single neuron pid
  • Active balance control system and method for time-delayed rotor based on smith model and single neuron pid

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Embodiment Construction

[0052] In this embodiment, a time-delayed rotor active balance control system based on the Smith model and single neuron PID is applied to the rotor system. The time-delayed rotor active balance control system includes: a balancing head, a vibration sensor, and a Smith estimation controllers, single-neuron PID controllers and processors;

[0053] Such as figure 1 As shown, the control principle of this method is as follows:

[0054] The vibration sensor obtains the vibration signal y(k) of the rotor system at the sampling time k and transmits it to the processor; the processor receives the output signal x(k) of the Smith predictor at the sampling time k and compares it with the vibration signal y(k) get the difference e m (k);

[0055] The processor converts the difference e at the sampling time k m (k) Compared with the set expected vibration amount r, get the difference r m (k);

[0056] The processor receives the delay-free output signal x of the Smith predictor at sa...

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Abstract

The invention discloses a time-delay rotor active balance control system based on a Smith model and single neuron PID and a method thereof. The Smith predictive model of a rotor system is establishedaccording to the dynamic model of a time-delay rotor, the influence of time-delay factors of the rotor system is eliminated by Smith predictive control, controller parameters are adaptively adjusted and the control step size is solved through a single-neuron PID controller, and effective control of the time-delay rotor imbalance is finally achieved. According to the invention, the defects that thetraditional Smith predictive control method has high precision requirements and low balance efficiency on the rotor system model are overcome, to as to improve the control efficiency and realize theefficient control of the active balance of the time-delay rotor, and the control method of the invention can be applied to large time-delay conditions.

Description

technical field [0001] The invention relates to the field of active balance control methods for rotating equipment affected by time-delay factors, in particular to a time-delay rotor active balance control system and method based on Smith model and single neuron PID. Background technique [0002] At present, rotating machinery is widely used in various fields of industry. Most of the rotors deviate from the geometric center due to design defects, uneven materials, etc., resulting in rotor imbalance. When the rotating equipment is running at high speed, the unbalance will cause the rotating equipment to deflect and deform, and generate large vibration. Long-term operation will reduce the service life of the rotating equipment, and even cause major accidents, threatening the safety of workers. In order to avoid the occurrence of the above problems and reduce the vibration of the rotor, the rotor must be dynamically balanced. However, there is inevitably a time lag in the act...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B17/02
CPCG05B17/02
Inventor 徐娟赵阳黄经坤徐兴鑫张利
Owner HEFEI UNIV OF TECH
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