Fuzzy RBF neural network in the application of magnetic levitation system

Jing Zhang, Sai Dai, Jiamin Li, Ning Wang
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引用次数: 2

Abstract

To solve the problems that magnetic levitation system has the characteristics of open-loop instability and nonlinearity and the traditional PID controller is difficult to achieve good control effect because of the fixed parameters, a kind of intelligent PID control system based on fuzzy RBF neural network is proposed in this paper. This method combines the reasoning ability of fuzzy control with study ability of neural network. Fuzzy control and RBF neural network are applied in order to adjust the parameters of PID kp, ki and kd online which is to satisfy the static and dynamic performance requirements in magnetic levitation system. By comparing with the conventional PID control, the results showed that, the improved control has better adaptability and robustness which can control magnetic levitation system more effectively.
模糊RBF神经网络在磁悬浮系统中的应用
针对磁悬浮系统具有开环不稳定性和非线性的特点,以及传统PID控制器由于参数固定而难以达到良好控制效果的问题,提出了一种基于模糊RBF神经网络的智能PID控制系统。该方法将模糊控制的推理能力与神经网络的学习能力相结合。采用模糊控制和RBF神经网络对PID kp、ki和kd的参数进行在线调节,以满足磁悬浮系统的静态和动态性能要求。与传统的PID控制相比,改进后的PID控制具有更好的自适应性和鲁棒性,可以更有效地控制磁悬浮系统。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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