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arXiv 2204.06207eess.SYcs.SY
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安全随机模型预测控制

Safe Stochastic Model Predictive Control

Tim Brüdigam, Robert Jacumet, Dirk Wollherr, Marion Leibold

摘要:

对安全关键型系统进行有效和安全的控制是一项挑战。鲁棒方法可能过于保守,而概率控制器需要在效率和安全之间进行权衡。在这项工作中,我们提出了一个安全的算法,是兼容的任何随机模型预测控制方法的线性系统添加剂的不确定性和多面体约束。该安全算法允许使用随机模型预测控制的乐观控制输入,只要安全的备用计划器可以确保安全性,以满足受有界不确定性的硬约束。除了保证安全的行为,所提出的随机模型预测控制算法保证递归的可行性和输入到状态稳定性的系统起源。安全的随机模型预测控制算法的好处是在数值模拟中证明,突出的优点相比,纯粹的鲁棒或随机预测控制器。

英文摘要:

Combining efficient and safe control for safety-critical systems is challenging. Robust methods may be overly conservative, whereas probabilistic controllers require a trade-off between efficiency and safety. In this work, we propose a safety algorithm that is compatible with any stochastic Model Predictive Control method for linear systems with additive uncertainty and polytopic constraints. This safety algorithm allows to use the optimistic control inputs of stochastic Model Predictive Control as long as a safe backup planner can ensure safety with respect to satisfying hard constraints subject to bounded uncertainty. Besides ensuring safe behavior, the proposed stochastic Model Predictive Control algorithm guarantees recursive feasibility and input-to-state stability of the system origin. The benefits of the safe stochastic Model Predictive Control algorithm are demonstrated in a numerical simulation, highlighting the advantages compared to purely robust or stochastic predictive controllers.

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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