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arXiv 2104.04854math.OC
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变系数耦合线性抛物型偏微分方程的双边反步控制

Bilateral backstepping control of coupled linear parabolic PDEs with spatially varying coefficients

Simon Kerschbaum, Joachim Deutscher

摘要:

本文研究了双边驱动的变系数耦合线性抛物型偏微分方程的反推状态反馈控制。通过利用折叠技术,得到了一个系统表示与单边驱动,允许应用标准的反推变换。为了保证解的正则性,折叠系统受到不寻常的折叠边界条件,这导致额外的边界耦合之间的偏微分方程。因此,相应的核方程的解决方案确定的变换是一个非常具有挑战性的问题。提出了一种系统的方法来推导相应的积分方程,允许用逐次逼近的方法来求解它们。利用Volterra变换和Volterra-Fredholm变换,将闭环系统映射为稳定抛物系统的级联。这允许一个简单的证明指数稳定性的$L_2$ -范数的衰减率作为设计参数。双边状态反馈镇定的两个耦合抛物型偏微分方程的不稳定系统和比较的应用程序的单边控制器证明了本文的结果。

英文摘要:

This paper considers the backstepping state feedback control of coupled linear parabolic PDEs with spatially varying coefficients and bilateral actuation. By making use of the folding technique, a system representation with unilateral actuation is obtained, allowing to apply the standard backstepping transformation. To ensure the regularity of the solution, the folded system is subject to unusual folding boundary conditions, which lead to additional boundary couplings between the PDEs. Therefore, the solution of the corresponding kernel equations determining the transformations is a very challenging problem. A systematic approach to derive the corresponding integral equations is proposed, allowing to solve them with the method of successive approximations. By making use of a Volterra and a Volterra-Fredholm transformation, the closed-loop system is mapped into a cascade of stable parabolic systems. This allows a simple proof of exponential stability in the $L_2$-norm with the decay rate as design parameter. The bilateral state feedback stabilization of an unstable system of two coupled parabolic PDEs and the comparison to the application of an unilateral controller demonstrates the results of the paper.

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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