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Research and Apply of Advanced Control Technique in Active Balancing System

Author: XiaoJian
Tutor: GaoJinJi
School: Beijing University of Chemical Technology
Course: Control Theory and Control Engineering
Keywords: Automatic balancing PID control Internal Model Control Neural Networks
CLC: TP273
Type: Master's thesis
Year: 2008
Downloads: 97
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Abstract


In the field of modern industrial high - speed rotating equipment , compressors , turbines , fans , etc. has become the core device in the process industry . However , due to the imbalance caused by the mass of the rotor vibration affect the normal operation of the equipment , how to ensure the balance of the rotor is the key to solve the problem . In this paper, several control methods to explore better realize the process of the rotor balancing the control , the amount of unbalance eliminate more quickly and effectively . Introduced a new release liquid formula balanced head design thinking , to overcome the ability to regulate traditional injected liquid formula balancing head easily saturated . In previous studies based on improvements introduced in the PID controller design strategy based on the PID control , internal model control principle to improve the conventional PID controller simulation of improved front and rear of the shortcomings of poor adaptability to changes in system parameters , and by the control method of comparative analysis. The experiments show that the improved control method not only be able to quickly and effectively reduce the amount of system imbalance , but also greatly enhance the robustness of the system and the anti-interference . The neural network is a parallel computing system , consisting of a simple highly interconnected neurons in function approximation , pattern recognition, fault diagnosis , showing strong vitality . This paper describes and compares the BP neural network and RBF neural network , combined with the advantages and disadvantages of the two neural networks to explore the application of neural networks in the field of dynamic balancing possible and a few problems that need attention , and given the appropriate solution .

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > Automatic control,automatic control system
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