journal6 ›› 2006, Vol. 27 ›› Issue (5): 49-53.

• 物理与电子 • 上一篇    下一篇

基于动态组合优化的切换型离散系统最优控制

  

  1. (北京工业大学电子信息与控制工程学院,北京 100022)
  • 出版日期:2006-09-25 发布日期:2012-06-29
  • 作者简介:陈冬(1974-),男,安徽蚌埠人,北京工业大学电子信息与控制工程学院博士研究生,主要从事混杂动态系统最优控制、鲁棒控制等研究;陈阳舟(1963-),男,湖北仙桃人,北京工业大学电子信息与控制工程学院教授,博士生导师,主要从事鲁棒控制、最优控制等研究.
  • 基金资助:

    国家自然科学基金资助项目(60374007)

A Dynamic Programming Approach for Optimal Control of Switched Discrete System

  1. (School of Electronic Information and Control Engineering,Beijing University of Technology,Beijing 100022,China)
  • Online:2006-09-25 Published:2012-06-29

摘要:讨论了一类切换型混杂系统的最优控制问题.离散子系统切换次数固定且性能指标为二次型时,基于动态规划原理,将多级决策问题转化为易于求解的单级决策问题,得到切换离散系统最优控制的全局解析解.利用作为演化计算重要分支的遗传算法,对切换顺序和切换时刻进行全局搜索使性能指标达到极小,并给出具体求解步骤.最后用数字算例验证了该算法的有效性,仿真结果表明该算法可以解决一类切换线性系统的最优控制问题.

关键词: 切换系统, 最优控制, 线性二次型, 动态规划, 遗传算法

Abstract: In this paper,the optimal control problem of the switched system which subsystem is discrete linear system is investigated.At the condition of the given switched number,and the quadratic performance function,the multi-periods decision-making problem can be transformed into single decision-making problem to resolve,then the analytic solution of the switched discrete system optimal control problem can be obtained in global.Searching of the switched instant and sequence to minimum the performance function by genetic algorithm,the searching procedure is presented.A numerical example illustrates the effectiveness of the design approach.The simulation shows that the approach can resolve a kind of switched discrete optimal control problem.

Key words: switched system, optimal control, linear quadratic, dynamical programming principle;genetic algorithm

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