引用本文:钱富才, 宋俐, 陈小可.基于滚动优化的对偶控制策略[J].控制理论与应用,2005,22(6):855~860.[点击复制]
QIAN Fu-cai,SONG Li,CHEN Xiao-ke.Dual control strategy based on receding horizon[J].Control Theory and Technology,2005,22(6):855~860.[点击复制]
基于滚动优化的对偶控制策略
Dual control strategy based on receding horizon
摘要点击 1639  全文点击 1531  投稿时间:2003-08-04  修订日期:2004-12-02
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DOI编号  10.7641/j.issn.1000-8152.2005.6.002
  2005,22(6):855-860
中文关键词  随机系统  动态规划  滚动优化  对偶控制
英文关键词  stochastic systems  dynamic programming  receding horizon  dual control
基金项目  陕西省自然科学基金资助项目(200SF053).
作者单位
钱富才, 宋俐, 陈小可 西安理工大学 自动化与信息工程学院,陕西 西安710048
西安理工大学 机械与精密仪器工程学院,陕西西安710048 
中文摘要
      考虑具有未知参数的随机系统的最优控制问题.提出了一种新的基于滚动优化的对偶控制算法.在动态规划泛函方程中,用Kalman滤波对系统的状态进行估计;用线性化方法对阶段损失函数中的后验概率进行近似,然后,用滚动优化策略对控制与学习之间的耦合关系进行解耦.从而获得了原不可解泛函方程的解析递推表达式和一个易于实施的控制律的解析解.用一个例子说明了控制律的性能,仿真结果表明:该控制律具有良好的对偶性质,在学习和控制之间实现了较好的平衡.
英文摘要
      The control of a stochastic system with unknown parameter was considered.A novel dual control algorithm based on receding horizon was proposed.In dynamic programming functional equation,the Kalman fliter is used to estimate the state of such system,and the linearization method is applied to approximate the nonlinear cost-to-go function with respect to posterior probabilities,the receding horizon strategy is then proposed to decouple the coupling relation between control and learning.Thus,the explicit recursive expression of the original unsolvable functional equation and a control law with easy implementation are obtained.The performance of the control law derived in this paper is also illustrated with an example.The simulation results show that the control law with dual property can achieve preferable compromise between learning and control.