基于潜在变量和youla - kuucera参数化的控制器重构插件模块

IF 1.8 Q3 AUTOMATION & CONTROL SYSTEMS
Patricio Luppi , Lautaro Braccia , David Zumoffen
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引用次数: 0

摘要

本文提出了一种解决工业过程中控制器重构问题的插件模块设计。该方案基于多控制器切换原理,其中插值信号的修改定义了每个控制器控制动作的组合。贡献是基于两种方法的集成。一方面,采用多变量反馈控制设计方法,采用控制分配与测量相结合的概念。另一方面,基于youla - kuucera理论的q参数,研究了一组线性稳定控制器到多控制器的映射问题。在这种情况下,控制器集可以独立设计。此外,在不同稳定控制器之间任意切换的情况下,系统的稳定性得到了保证。通过考虑两种相关的控制重构场景来评估该过程:1-完全修改输入输出配对,2-用新的高级控制策略替换经典控制器。基于文献中两个案例的计算仿真,表明插件模块实现了控制结构的重构,提高了系统的动态性能,保证了系统的稳定性。该设计基于标称控制器,在重新配置过程中不修改。此外,它可以很容易地在线实现,连接到现有控制器的输入输出端。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Plug-in module for controller reconfiguration based on latent variables and the Youla-Kucera parameterization
This paper presents the design of a plug-in module to address the problem of controller reconfiguration in industrial processes. The proposal is based on a multi-controller switching philosophy, where the modification of an interpolation signal defines the combination of the control actions of each controller. The contribution is based on the integration of two methodologies. On the one hand, a multivariable feedback control design approach, using the concepts of control allocation and measurement combination. On the other hand, the mapping of a set of linear stabilizing controllers onto a multi-controller, based on the Q-parameter from the Youla-Kucera theory. In this context, the set of controllers can be designed independently. Moreover, the stability is guaranteed subject to an arbitrary switching between different stabilizing controllers. The procedure is evaluated by considering two relevant scenarios of control reconfiguration: 1- a complete modification of the input–output pairing, and 2- the replacement of a classical controller with a new advanced control strategy. Based on the computational simulation of two case studies from the literature, it is shown that the plug-in module carries out the reconfiguration of the control structure, improving the dynamic performance and ensuring the stability of the system. The design is based on the nominal controller, which is not modified during the reconfiguration process. In addition, it can be easily implemented online, connected to input–output terminals of the existing controller.
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来源期刊
IFAC Journal of Systems and Control
IFAC Journal of Systems and Control AUTOMATION & CONTROL SYSTEMS-
CiteScore
3.70
自引率
5.30%
发文量
17
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