东北大学学报:自然科学版 ›› 2015, Vol. 36 ›› Issue (3): 322-326.DOI: 10.12068/j.issn.1005-3026.2015.03.005

• 信息与控制 • 上一篇    下一篇

改进全局和声算法在鲁棒极点配置中的应用

翟军昌, 高立群, 欧阳海滨, 孔祥勇   

  1. (东北大学 信息科学与工程学院, 辽宁 沈阳110819)
  • 收稿日期:2014-01-14 修回日期:2014-01-14 出版日期:2015-03-15 发布日期:2014-11-07
  • 通讯作者: 翟军昌
  • 作者简介:翟军昌(1978-),男,辽宁东港人,东北大学博士研究生; 高立群(1949-),男,辽宁沈阳人,东北大学教授,博士生导师.
  • 基金资助:
    国家自然科学基金资助项目(61273155).

Robust Pole Placement via Improved Global Harmony Search Algorithm

ZHAI Jun-chang, GAO Li-qun, OUYANG Hai-bin, KONG Xiang-yong   

  1. School of Information Science & Engineering, Northeastern University, Shenyang 110819, China.
  • Received:2014-01-14 Revised:2014-01-14 Online:2015-03-15 Published:2014-11-07
  • Contact: ZHAI Jun-chang
  • About author:-
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摘要: 提出了改进全局和声搜索(IGHS)算法,给出了新的位置更新策略.通过引入新的位置更新策略,可以使算法动态产生解区间,提高了算法对解空间信息开发的能力,避免了因过早收敛而易陷入局部最优的不足.将所提出算法应用于线性系统的鲁棒极点配置中,克服了以往条件数优化计算中需要拟凸转化处理的不足,方便地实现了控制系统的任意极点配置.最后,针对文献中的多输入多输出系统进行仿真对比实验,实验结果表明本方法得到的闭环系统具有更好的鲁棒性.

关键词: 和声搜索, 极点配置, 鲁棒, 条件数, 状态反馈

Abstract: An improved global harmony search (IGHS) algorithm was proposed, and a novel position updating strategy was introduced in the IGHS algorithm. The interval solution can be generated dynamically with the proposed algorithm, and the ability of searching the solution space through the position updating strategy is improved, which prevents the phenomena of premature convergence and falling into a local optimum. The algorithm is employed in the robust pole placement problems, and it is easy to implement arbitrary pole placement for the linear control systems, and the convex conversion process in conventional condition number optimizations is not needed. Finally simulation investigation is carried out for a multivariable system, and the simulation result demonstrates the better robustness of the closed-loop system gained by the proposed algorithm.

Key words: harmony search, pole placement, robust, condition number, state feedback

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