检索结果-内蒙古大学图书馆

synthesis of fixed-structure H ∞ controllers via Constrained Particle Swarm optimization

IFAC Proceedings Volumes 2008年第2期41卷 7843-7848页

作者： Ichiro Maruta Tae-Hyoung Kim Toshiharu Sugie Department of Systems Science Kyoto University Uji Kyoto 611-0011 Japan CREST Japan Science and Technology Agency 4-1-8 Honcho Kawaguchi-shi Saitama 332-0012 Japan

This paper provides a design method of fixed-structure robust controllers satisfying multiple H ∞ norm specifications by using a sort of randomized algorithms. First, a new tool to perform general constrained optimization is developed which does not need any gradient or derivative of the objective function. This tool is based on PSO (particle swarm optimization), which attracts a lot of attention recently in the evolutionary computation area due to its empirical evidence of its superiority in solving various non-convex problems. Second, it is shown how to design a fixed-structure controller satisfying given multiple H ∞ specifications by using the developed optimization tool. Third, its effectiveness is evaluated through various numerical examples, because it is difficult to guarantee the performance of the proposed method theoretically due to a probabilistic nature of the PSO. The simulation results demonstrate its effectiveness clearly.

关键词： optimization based controller synthesis Robust controller synthesis controller constraints and structure Parametric optimization Evolutionary algorithms Probabilistic robustness

来源：评论

学校读者我要写书评

暂无评论

Impulse Control Inputs and the Theory of Fast Feedback Control

引用

IFAC Proceedings Volumes 2008年第2期41卷 4869-4874页

作者： A.N. Daryin A.B. Kurzhanski Moscow State (Lomonosov) University Faculty of Computational Mathematics and Cybernetics

This paper deals with problems of impulse control which allow control inputs consisting not only of delta functions but also of their higher derivatives (impulses of higher order). The controls are sought for in the form of feedback strategies which leads to the application of respective generalized dynamic programming techniques, where the role of traditional Hamilton–Jacobi–Bellman equations is taken by respective variational inequalities of similar structure. Further proposed are physically realizable approximations which converge to these ideal solutions. Since the ideal solutions allow to transfer a controllable system from one given position to another in zero time, their approximations lead us to physically realizable “fast” controls with piecewise constant realizations. Such feedback control inputs are then compared with traditional bang-bang type strategies and turn out to be more robust. Computational schemes for related problems of reachability and control synthesis are further described with examples of damping oscillating systems of high order in minimal time being demonstrated.

关键词： Switching stability and control control design optimization based controller synthesis impulse feedback control generalized dynamic programming variational inequalities reachability

来源：评论

学校读者我要写书评

暂无评论

A New Exterior-point Approach to a Fixed-order Output Feedback controller Design *

引用

IFAC Proceedings Volumes 2009年第2期42卷 211-215页

作者： Yasushi Kami Eitaku Nobuyama Akashi National College of Technology Hyogo Japan (Tel : +81-78-946-6121) Kyushu Institute of Technology Fukuoka Japan (Tel : +81-948-29-7728)

This paper deals with fixed-order controller design problems with output-feedback. It is well known that the control problems are difficult to be solved, because they become non-convex problems described by bilinear matrix inequality(BMI). In this paper, a new exterior-point approach to such BMI problems is proposed. This approach produces a controller sequence from a infeasible region to a feasible one. The advantage of this approach is that non-stabilizing controllers can be used as an initial controller. Numerical examples show the efficiency of our method.

关键词： optimization based controller synthesis Exterior-point approach Fixed(Reduced)-order controller synthesis

来源：评论

学校读者我要写书评

暂无评论

A Gradient Method for the Static Output Feedback Mixed H 2 / H ∞ Control

引用

IFAC Proceedings Volumes 2008年第2期41卷 7838-7842页

作者： Yasushi Kami Eitaku Nobuyama Akashi National College of Technology Hyogo Japan (Tel : +81-78-946-6121 Kyushu Institute of Technology Fukuoka Japan (Tel : +81-948-29-7728

This paper is concerned with the mixed H 2 /H ∞ control problem via static output feedback control. The main purpose of this paper is to give an iterative method for finding a sub-optimal static output-feedback controller for the mixed H 2 /H ∞ control problem. The contribution of this paper is to derive a gradient of the H 2 cost function. Using this gradient, we propose a gradient method for H 2 and mixed H 2 /H ∞ control problems. Numerical examples show the efficiency of our methods.

关键词： optimization based controller synthesis Robust controller synthesis

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：