Refining parameter mismatch handling in LPV sampled-data controller design

IF 4.8 2区 计算机科学 Q1 AUTOMATION & CONTROL SYSTEMS
Lucas A.L. Oliveira , Kevin Guelton , Koffi M.D. Motchon , Valter J.S. Leite
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引用次数: 0

Abstract

This paper presents a refined approach to cope with the problem of parameter mismatch in the design conditions of sampled-data controllers for Linear Parameter-Varying (LPV) systems, which occurs between consecutive sampling instants. Using the input delay approach, we propose a novel strategy that applies the mean value theorem while explicitly incorporating the delay into the stability conditions. This method avoids the spread of mismatch terms across all parameter-dependent matrices, yielding less conservative controller synthesis conditions and enabling larger sampling intervals than existing techniques. Despite its simplicity, our approach demonstrates superior performance relative to conditions in the literature, as shown by a numerical example.
改进LPV采样数据控制器设计中的参数不匹配处理
本文提出了一种改进的方法来处理线性变参(LPV)系统的采样数据控制器设计条件中的参数不匹配问题,这种不匹配发生在连续采样时刻之间。利用输入延迟方法,我们提出了一种应用中值定理的新策略,同时显式地将延迟纳入稳定性条件。该方法避免了不匹配项在所有参数相关矩阵中的传播,产生了比现有技术更保守的控制器合成条件,并实现了更大的采样间隔。尽管它很简单,但我们的方法相对于文献中的条件表现出优越的性能,如数值例子所示。
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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来源期刊
Automatica
Automatica 工程技术-工程:电子与电气
CiteScore
10.70
自引率
7.80%
发文量
617
审稿时长
5 months
期刊介绍: Automatica is a leading archival publication in the field of systems and control. The field encompasses today a broad set of areas and topics, and is thriving not only within itself but also in terms of its impact on other fields, such as communications, computers, biology, energy and economics. Since its inception in 1963, Automatica has kept abreast with the evolution of the field over the years, and has emerged as a leading publication driving the trends in the field. After being founded in 1963, Automatica became a journal of the International Federation of Automatic Control (IFAC) in 1969. It features a characteristic blend of theoretical and applied papers of archival, lasting value, reporting cutting edge research results by authors across the globe. It features articles in distinct categories, including regular, brief and survey papers, technical communiqués, correspondence items, as well as reviews on published books of interest to the readership. It occasionally publishes special issues on emerging new topics or established mature topics of interest to a broad audience. Automatica solicits original high-quality contributions in all the categories listed above, and in all areas of systems and control interpreted in a broad sense and evolving constantly. They may be submitted directly to a subject editor or to the Editor-in-Chief if not sure about the subject area. Editorial procedures in place assure careful, fair, and prompt handling of all submitted articles. Accepted papers appear in the journal in the shortest time feasible given production time constraints.
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