arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1606.03529math.OC
收藏

面归约在$H_\infty$状态反馈控制问题中的应用

Application of Facial Reduction to $H_\infty$ State Feedback Control Problem

Hayato Waki, Noboru Sebe

摘要:

在求解由$H_\infty$控制问题得到的线性矩阵不等式(LMI)问题时,经常遇到数值上的困难。从最优化的角度讨论了其原因,给出了LMI问题及其对偶不是强可行的充要条件。此外,我们解释他们的控制系统。在这个分析中,Borwein和Wolkowicz提出的面部缩小起着重要作用。我们证明了系统在闭左半平面中存在不变零点的一个充要条件,并提出了一种方法来解决与闭左半平面中不变零点相关的零向量的数值困难。数值结果表明,应用该方法后,数值稳定性得到了提高。

英文摘要:

One often encounters numerical difficulties in solving linear matrix inequality (LMI) problems obtained from $H_\infty$ control problems. We discuss the reason from the viewpoint of optimization, and provide necessary and sufficient conditions for LMI problem and its dual not to be strongly feasible. Moreover, we interpret them in terms of control system. In this analysis, facial reduction, which was proposed by Borwein and Wolkowicz, plays an important role. We show that a necessary and sufficient condition closely related to the existence of invariant zeros in the closed left-half plane in the system, and present a way to remove the numerical difficulty with the null vectors associated with invariant zeros in the closed left-half plane. Numerical results show that the numerical stability is improved by applying it.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑