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arXiv 2306.06201math.OCcs.SYeess.SY
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带可行性保证的近似动态规划

Approximate Dynamic Programming with Feasibility Guarantees

Alexander Engelmann, Maisa B. Bandeira, Timm Faulwasser

AI总结:

针对网络化系统优化方案求解大规模问题计算负担重、分布式迭代技术仅渐近可行的问题,提出一种树结构耦合子问题下可一次性给出可行解的近似动态规划方案,推广了多领域方法并通过数值算例验证了对非凸约束问题的有效性。

摘要:

网络化系统的安全经济运行通常颇具挑战性。基于优化的方案因能在通过显式考虑约束保障安全性的同时实现近最优性,而常被采用。但在实际应用中,这类方案往往需要求解大规模优化问题。人们常提出分布式优化中的迭代技术来降低复杂度,然而这类技术仅能渐近地满足可行性,会带来沉重的计算负担。本研究提出一种近似动态规划方案,只要各子问题通过树结构耦合,该方案保证能“一次性”——即通过对所有子问题的一次反向-前向迭代——给出可行解。所提方案推广了电力系统、最优控制等看似不相关领域的方法。我们通过来自这两个领域的数值算例,验证了其对带非凸约束问题的有效性。

英文摘要:

Safe and economic operation of networked systems is often challenging. Optimization-based schemes are frequently considered, since they achieve near-optimality while ensuring safety via the explicit consideration of constraints. In applications, these schemes, however, often require solving large-scale optimization problems. Iterative techniques from distributed optimization are frequently proposed for complexity reduction. Yet, they achieve feasibility only asymptotically, which induces a substantial computational burden. This work presents an approximate dynamic programming scheme, which is guaranteed to deliver a feasible solution in "one shot", i.e., in one backward-forward iteration over all subproblems provided they are coupled by a tree structure. Our proposed scheme generalizes methods from seemingly disconnected domains such as power systems and optimal control. We demonstrate its efficacy for problems with nonconvex constraints via numerical examples from both domains.

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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