引用本文:朱尚伟 ,李训经.在逐点状态约束下一个四阶线性系统的时间最优控制[J].控制理论与应用,2006,23(2):169~174.[点击复制]
ZHU Shang-wei,LI Xun-jing.Time optimal control problem for a fourth-order linear system with pointwise state constraints[J].Control Theory and Technology,2006,23(2):169~174.[点击复制]
在逐点状态约束下一个四阶线性系统的时间最优控制
Time optimal control problem for a fourth-order linear system with pointwise state constraints
摘要点击 1929  全文点击 842  投稿时间:2005-02-01  修订日期:2005-11-04
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DOI编号  
  2006,23(2):169-174
中文关键词  逐点状态约束  时间最优控制  最优轨线
英文关键词  point-wise state constraints  time optimal control  optimal trajectory
基金项目  国家自然科学基金资助项目(101310310,10171059)
作者单位
朱尚伟 ,李训经 山西财经大学应用数学系,山西太原030006
复旦大学数学系,上海200433 
中文摘要
      在逐点状态约束下,最优控制问题的求解是很困难的,已有的最大值原理和形态规划理论很难用来求解在逐点状态约束下最优控制问题.本文讨论逐点状态约束下一个四阶线性系统的时间最优控制问题.我们采用转换的方法给出了最优时间与最优控制的具体表达式.
英文摘要
      In optimal control field,it is very difficult to find the optimal control for an optimal control problem with point-wise state constraints.There is no effective way to calculate the optimal control for this kind of problem.A time-optimal control problem Ph for a forth-order linear system with point-wise state constraints and terminal constraints is considered in this paper.By transforming problem Ph into a time-fixed problem RT with the same point-wise constraints and fewer terminal constraints,the solvability of the problem Ph is proved to be equivalent to that of RT,the relations between the solutions of these two problems are also established.For the problem RT,its corresponding problem R^T without the point-wise state constraints can be solved easily.From the solution of R^T,the optimal control of problem RT is then constructed.According to the relation between the solutions of the problem Ph and RT,the optimal control of Ph is consequently obtained.The main results are the solvability of the problem Ph and its explicit expressions of the optimal time and the optimal control.