arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2006.05054eess.SYcs.SYstat.ML
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迭代MPC中学习满足未知约束

Learning to Satisfy Unknown Constraints in Iterative MPC

Monimoy Bujarbaruah, Charlott Vallon, Francesco Borrelli

AI总结:

针对线性时不变系统的未知多面体状态约束问题,提出迭代学习的MPC控制方法,利用轨迹数据迭代优化约束估计并设计鲁棒控制器,给出约束满足保证,通过数值示例验证安全性并探讨安全与性能的权衡。

摘要:

我们提出了一种针对线性时不变系统的控制设计方法,该方法可通过迭代学习满足未知的多面体状态约束。在重复任务的每次迭代中,该方法利用收集到的闭环轨迹数据构建对未知环境约束的估计,该估计约束集会在收集到更多数据后得到迭代优化。随后我们设计了MPC(模型预测控制)控制器,以鲁棒地满足估计的约束集。本文介绍了所提方法的细节,并给出了约束满足的鲁棒性保证与概率保证,该保证是已执行任务迭代次数的函数。我们通过详细的数值示例验证了所提框架的安全性,并探讨了安全性与性能之间的权衡关系。

英文摘要:

We propose a control design method for linear time-invariant systems that iteratively learns to satisfy unknown polyhedral state constraints. At each iteration of a repetitive task, the method constructs an estimate of the unknown environment constraints using collected closed-loop trajectory data. This estimated constraint set is improved iteratively upon collection of additional data. An MPC controller is then designed to robustly satisfy the estimated constraint set. This paper presents the details of the proposed approach, and provides robust and probabilistic guarantees of constraint satisfaction as a function of the number of executed task iterations. We demonstrate the safety of the proposed framework and explore the safety vs. performance trade-off in a detailed 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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