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arXiv 2212.02111eess.SYcs.SY
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基于系统级综合的预测安全滤波器

Predictive safety filter using system level synthesis

Antoine P. Leeman, Johannes Köhler, Samir Benanni, Melanie N. Zeilinger

AI总结:

本研究提出融入系统级综合技术的改进模型预测安全滤波器SL-MPSF,可在扩大安全集内为受扰线性系统保安全,修改控制输入更少,还提出显式变体降低在线计算量,经数值算例验证优于现有方案。

摘要:

安全滤波器提供模块化技术,为可能不安全的控制输入(例如来自基于学习的控制器或人类的输入)附加以约束满足形式的安全保证。本文提出一种改进的模型预测安全滤波器(MPSF)公式,在设计中融入了系统级综合技术。由此得到的SL-MPSF方案可在扩大的安全集合内,为受有界扰动影响的线性系统确保安全性。与现有MPSF公式相比,该方案为证明安全性所需对潜在不安全控制输入进行的修改程度更轻、频率更低。此外,我们提出了SL-MPSF公式的显式变体,该变体保持了可扩展性,并减少了MPSF的主要缺点——所需的在线计算量。通过一个数值算例,验证了所提出的系统级安全滤波器公式相比最先进MPSF公式的优势。

英文摘要:

Safety filters provide modular techniques to augment potentially unsafe control inputs (e.g. from learning-based controllers or humans) with safety guarantees in the form of constraint satisfaction. In this paper, we present an improved model predictive safety filter (MPSF) formulation, which incorporates system level synthesis techniques in the design. The resulting SL-MPSF scheme ensures safety for linear systems subject to bounded disturbances in an enlarged safe set. It requires less severe and frequent modifications of potentially unsafe control inputs compared to existing MPSF formulations to certify safety. In addition, we propose an explicit variant of the SL-MPSF formulation, which maintains scalability, and reduces the required online computational effort - the main drawback of the MPSF. The benefits of the proposed system level safety filter formulations compared to state-of-the-art MPSF formulations are demonstrated using a numerical example.

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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