基于模糊推理和Jordan神经网络的磁悬浮球位置补偿控制研究
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TP 273.1

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国家自然科学基金资助项目(51775323);上海市在线检测与控制技术重点实验室开放基金资助项目(Z2022304013)


Position compensation control of maglev ball system by fuzz inference and Jordan neural network
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    摘要:

    针对欠训练Jordan神经网络(Jordan neural network,JNN)输出不确定性导致的控制系统动态性能不佳的问题,提出了一种基于模糊推理(fuzzy inference,FI)和JNN的磁悬浮球位置补偿控制新方法,构建了包含基础控制、JNN控制和FI的三模块控制框架。基础控制模块采用适应性强的PID控制器;JNN控制模块实现磁悬浮球系统的在线辨识与补偿;FI模块动态调整神经网络控制器的输出,以抑制欠训练JNN带来的不确定性影响。实验结果表明,与传统神经网络补偿控制方法相比,在跟踪阶跃信号和方波信号时,超调量分别减小了39.79%和60.61%,调节时间分别减小了19.52%和48.47%。该方法在保证稳态精度的同时,显著提升了控制系统的动态性能。

    Abstract:

    To address the issue of poor dynamic performance in control systems caused by the output uncertainty of insufficiently trained Jordan neural network (JNN), a novel position compensation control method of maglev ball based on fuzzy inference (FI) and JNN was proposed. A three-module control framework was designed, consisting of a basic control module, a JNN control module, and a FI module. The basic control module adopted a highly adaptable PID controller to provide baseline control performance. The JNN control module performed real-time identification and compensation for the maglev ball system. The FI module dynamically adjusted the output of the neural network controller to suppress the uncertainty introduced by insufficiently trained JNN. The experimental results show that,compared with the traditional neural network compensation control method, the proposed method reduces overshoot by 39.79% and 60.61% and shortens the settling time by 19.52% and 48.47% when tracking step and square wave signals. The proposed method significantly enhances the dynamic performance of the control system while maintaining steady-state accuracy.

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李孝茹,陈士松,黄之文.基于模糊推理和Jordan神经网络的磁悬浮球位置补偿控制研究[J].上海理工大学学报,2025,47(3):299-308.

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  • 收稿日期:2024-06-17
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  • 在线发布日期: 2025-07-17
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