arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2008.10164eess.SYcs.SY
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基于改进型全形式动态线性化的无模型自适应控制

Model-Free Adaptive Control based on Modified Full-Form-Dynamic-Linearization

Feilong Zhang

摘要:

现有的无模型自适应控制(MFAC)方法没有对线性系统进行分析,而且对实际工程人员来说也不容易理解。本文提出了一种基于改进的等效动态线性化模型(EDLM)的MFAC族,它有助于更直观、客观地显示方法的工作原理。与现有的研究相比,MFAC的研究主要集中在线性模型上,这样更容易理解其工作特性; EDLM的全形式分别扩展为不可测随机扰动和可测扰动。(3)当控制输入的超前系数符号发生变化时,系统的稳定性分析不能用电流收缩映射技术证明,因此我们通过分析闭环极点的作用来证明。通过几个仿真算例说明了这种方法的原理。

英文摘要:

Current model-free adaptive control (MFAC) method has no been analysed in linear system and is not straightforward for the practical engineers to understand accurately. This correspondence presents a family of MFAC based on a modified equivalent-dynamic-linearization model (EDLM), which facilitates to show the working principle of method more directly and objectively. Compared to the current work, i) the researches on MFAC focus on linear model, which is easy to understand its working behaviour; ii) the full-form EDLM is extended with unmeasured stochastic and measured disturbance, respectively. Then the controllers is modified correspondingly; iii) the stability analysis of system cannot be proved by current contraction mapping technique when the sign of leading coefficient of control input changes, therefore we prove it by analysing the function of the closed-loop poles. Several simulated examples are used to show the principles of this kind of method.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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