Optimal Tracking in Switched Systems With Free Final Time and Fixed Mode Sequence Using Approximate Dynamic Programming
Optimal Tracking in Switched Systems With Free Final Time and Fixed Mode Sequence Using Approximate Dynamic Programming
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DOI：
10.1109/tnnls.2021.3113801
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发表时间：
2021-10
影响因子：
10.4
通讯作者：
Tohid Sardarmehni;Xingyong Song
中科院分区：
文献类型：
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作者：
Tohid Sardarmehni;Xingyong Song
研究了具有固定模态序列和自由终端时间的切换系统的最优跟踪问题。在最优控制问题的制定，切换时间和最终的时间被视为参数。为了解决最优控制问题，近似动态规划（ADP）。ADP解决方案使用内部循环在每个时间步收敛到最优策略。为了减少求解的计算量，引入了一种新的方法，该方法使用进化的次优策略（而不是最优策略）来学习最优解。所提出的解决方案的有效性进行了评估，通过数值模拟。
Optimal tracking in switched systems with fixed mode sequence and free final time is studied in this article. In the optimal control problem formulation, the switching times and the final time are treated as parameters. For solving the optimal control problem, approximate dynamic programming (ADP) is used. The ADP solution uses an inner loop to converge to the optimal policy at each time step. In order to decrease the computational burden of the solution, a new method is introduced, which uses evolving suboptimal policies (not the optimal policies), to learn the optimal solution. The effectiveness of the proposed solutions is evaluated through numerical simulations.