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基于数据ADP算法的一类带有执行器饱和的未知离散时间系统最优跟踪控制

DOI: 10.3724/SP.J.1004.2013.01413, PP. 1413-1420

Keywords: 自适应动态规划,迭代算法,最优跟踪控制,基于数据,辨识器

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Abstract:

?针对一类带有执行器饱和的未知动态离散时间非线性系统,提出了一种新的最优跟踪控制方案.该方案基于迭代自适应动态规划算法,为了实现最优控制,首先建立了未知系统动态的数据辨识器.通过引入M网络,获得了稳态控制的精确表达式.为了消除执行器饱和的影响,提出了一个非二次的性能指标函数.然后提出了一种迭代自适应动态规划算法获得最优跟踪控制的解,并给出了收敛性分析.为了实现最优控制方案,神经网络被用来构建数据辨识器、计算性能指标函数、近似最优控制策略和求解稳态控制.仿真结果验证了本文所提出的最优跟踪控制方法的有效性.

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