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自适应变步长迭代动态规划方法及其在间歇过程优化中的应用

DOI: 10.13195/j.kzyjc.2014.1410, PP. 2048-2054

Keywords: 优化控制,迭代动态规划,自适应变步长,间歇过程

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Abstract:

迭代动态规划(IDP)作为一种求解非线性问题的离散算法,其寻优精度和收敛速度受到时间段划分的影响.通常,时间段划分依赖主观经验,缺乏科学有效的指导.针对终端时刻固定的动态优化问题,提出一种自适应变步长IDP算法,综合考虑控制变量与目标函数值的变化,对时间段数量、长度和切换点进行优化.将该方法应用于间歇过程优化,结果表明其能够智能分配时间段数量与长度,可有效提升寻优精度.

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