| 一种新的ARX模型在磁悬浮系统建模中的应用 |
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| 引用本文： | 侯海良,彭辉. 一种新的ARX模型在磁悬浮系统建模中的应用[J]. 计算机工程与应用, 2007, 43(29): 196-200 |
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| 作者姓名： | 侯海良 彭辉 |
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| 作者单位： | 中南大学,信息科学与工程学院,长沙,410083;中南大学,信息科学与工程学院,长沙,410083 |
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| 摘 要： | 采用一种新的ARX模型（RBF-ARX模型）对磁悬浮系统进行离线建模,讨论了RBF-ARX模型的原理、结构的选取、模型参数辨识和RBF参数优化等问题。文章分别采用不同的序列作为状态变量,分别建立RBF-ARX模型,并分析了各模型的性能及可靠性。模型的预测输出和仿真结果,证实了RBF-ARX模型在非线性系统建模和辨识中的有效性。通过与ARX模型的比较,证明了RBF-ARX模型在非线性系统建模中效果更好。
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| 关 键 词： | 磁悬浮系统 模型预测控制 RBF-ARX模型 结构化非线性参数优化策略 |
| 文章编号： | 1002-8331（2007）29-0196-05 |
| 修稿时间： | 2007-06-01 |
Application of new ARX model to identification for magnetic levitation control system |
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| HOU Hai-liang,PENG Hui. Application of new ARX model to identification for magnetic levitation control system[J]. Computer Engineering and Applications, 2007, 43(29): 196-200 |
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| Authors: | HOU Hai-liang PENG Hui |
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| Affiliation: | School of Information Science & Engineering,Central South University,Changsha 410083,China |
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| Abstract: | This paper focuses on the modeling of magnetic levitation control system using RBF-ARX model,also discuses the principium of RBF-ARX model,model structure design,model parameters identification,parameter optimization and so on.Finally,the authors have used different series as state variable,established the RBF-ARX model separately and analyzed the reliability and performance of the model respectively.The results of simulation studies finally show the effectiveness of RBF-ARX model for the modeling and identification of nonlinear systems.In contrast to ARX model,RBF-ARX model is good at modeling of nonlinear systems. |
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| Keywords: | magnetic levitation systems model-based predictive control RBF-ARX model Structured Nonlinear Parameter Optimization Method(SNPOM) |
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