中国科技核心期刊

中文核心期刊

CSCD来源期刊

空间控制技术与应用 ›› 2014, Vol. 40 ›› Issue (3): 1-7.doi: 10.3969/j.issn.1674-1579.2014.03.001

• 专家约稿 • 上一篇    下一篇

输入延迟未知的二阶对象的黄金分割控制

  

  • 出版日期:2014-06-24 发布日期:2014-08-20

GoldenSection Control of the SecondOrder Plant with Unknown Input Dela

  • Online:2014-06-24 Published:2014-08-20

摘要: 研究输入延迟未知对象特征模型的控制问题.采用闭环系统直接求根方法,结果表明:最小方差控制对未知输入延迟不具有鲁棒性,原型黄金分割控制能应对较小的未知输入延迟变化,λ型黄金分割控制能应对较大的未知输入延迟的变化.针对稳定、临界稳定、不稳定以及双积分特征模型,在未知的输入延迟条件下,进一步研究了原型和λ型黄金分割控制器对未知输入延迟的稳定性和性能鲁棒性.对稳定的被控对象,λ型黄金分割控制器,可应对很大的未知输入延迟,且闭环性能基本不变;对非稳定对象的特征模型,λ型黄金分割控制器,可提高应对未知输入延迟的稳定能力,通过优选λ,可优化闭环性能.

关键词: 输入延迟, 特征模型, 黄金分割控制

Abstract: The control problem of characteristic model with unknown input delay is studied. Using the method of directly solving the roots of the closedloop system, the results show that the minimumvariance controller is not robust to unknown input delay, the prototype goldensection controller can deal with small input delay, and the λ type goldensection controller can deal with larger input delay. Considering a stable, oscillating, unstable twointegrator characteristic model, the stability and robustness performance of the closedloop system are further analyzed respectively for the prototype and the λ type goldensection controller with unknown input delay. For stable controlled plant, the λ type goldensection controller is tolerable with large input delay, and the closedloop system performance is basically unchanged. For unstable plant, the λ type goldensection controller can improve the stability and performance by optimizing λ.

Key words: characteristic model, goldensection control

中图分类号: 

  • V448