共查询到20条相似文献,搜索用时 15 毫秒
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2-D系统的干扰解耦 总被引:1,自引:0,他引:1
本文讨论了2-D系统的干扰解耦问题(DDP),将1-D系统理论中的有关结果推广到了2-D线性离散常系数一般模型(2-DGM),得到了问题可解的充分条件和必要条件以及相应的算法.这些结果较好地改进了现有结果 相似文献
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非线性系统解耦原则及实施 总被引:3,自引:1,他引:2
本文给定输出的一个分划,寻找反馈规律,使得控制系统分解成若干个平行的、独立作用的子系统,这就是控制系统的反馈(块)解耦问题.对于由微分代数语言描述的非线性输入输出控制系统,证明了它具有其本身所固有的解耦结构,当且仅当给定的分划与这个解耦结构相"匹配"时.系统可达到解耦.对于由状态空间方程所描述的非线性系统,本文用动态扩张算法给出了其解耦结构的构造. 相似文献
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R. Pothin 《Systems & Control Letters》2001,43(2):1328
In this paper, the disturbance decoupling problem for a square-invertible nonlinear system is stated and solved by static feedback of measured variables only, in contrast with standard solutions which assume that the full state is available for feedback. The results are valid for left-invertible systems as well. 相似文献
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Iasson Karafyllis 《国际强度与非线性控制杂志
》2006,16(4):191-214
》2006,16(4):191-214
In this paper the notions of non‐uniform in time robust global asymptotic output stability (RGAOS) and input‐to‐output stability (IOS) for discrete‐time systems are studied. Characterizations as well as links between these notions are provided. Particularly, it is shown that a discrete‐time system with continuous dynamics satisfies the non‐uniform in time IOS property if and only if the corresponding unforced system is non‐uniformly in time RGAOS. Necessary and sufficient conditions for the solvability of the robust output feedback stabilization (ROFS) problem are also given. Copyright © 2005 John Wiley & Sons, Ltd. 相似文献
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In this note we study the strong dynamic input-output decoupling problem for nonlinear systems. Using an algebraic theory for nonlinear control systems, we obtain for a dynamic input-output decouplable nonlinear system a compensator of minimal dimension that solves the decoupling problem. 相似文献
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2-D Roesser模型的静态干扰解耦 总被引:2,自引:1,他引:1
本文讨论了2-D Roesser模型[1](RM)的静态干扰解耦问题[2](简称为2-D DDP),即寻求2-D状态反馈使相应的闭环系统具有抗干扰的能力,得到了问题有解的充分条件和计算相应反馈阵的算法. 相似文献
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一类离散时间切换系统鲁棒控制器设计 总被引:7,自引:0,他引:7
考虑一类非线性离散时间切换系统的鲁棒二次镇定和渐近镇定问题.利用公共李亚普诺夫函数方法和多李亚普诺夫函数方法,分别设计了切换系统鲁棒状态反馈控制器和输出反馈控制器,保证了切换系统的二次稳定性和渐近稳定性.仿真结果验证了所提出算法的有效性. 相似文献
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LIU Bi-Yu~ 《自动化学报》2005,(5)
Based on design of an observer,the issue of dynamic output feedback control is studied for uncertain discrete systems with delays.A comparison theorem is given for nonlinear uncertain discrete systems with multiple time delays.Based on the comparison theorem with some inequalities, some delay-independent sufficient conditions for the robust stabilization of the systems are presented by means of output feedback. 相似文献
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Based on design of an observer, the issue of dynamic output feedback control is studied for uncertain discrete systems with delays. A comparison theorem is given for nonlinear uncertain discrete systems with multiple time delays. Based on the comparison theorem with some inequalities, some delay-independent sufficient conditions for the robust stabilization of the systems are presented by means of output feedback. 相似文献
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This paper presents a new approach for sliding‐mode control of discrete‐time systems using the reaching law approach together with periodic output feedback technique. This method does not need the system states for feedback as it makes use of only the output samples for designing the controller. Thus, this methodology is more practical and easy to implement. A numerical example is presented to illustrate the design technique. 相似文献
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传统的安全技术已经不足以保护无边界网络环境中高分布信息系统的存活性问题.针对网络存活性系统中由于外来攻击或自身故障等原因导致失效时,提供关键服务自恢复能力的不足,从容错QoS角度出发,提出了一个有效的网络存活性自适应重配置模型,讨论了存活性重配置策略,并给出存活性重配置的具体实现环节和相应的动态重配置算法.该模型可以实时监测系统当前状态,并能在系统遭受攻击或自身故障时,迅速确定动态调整算法,为系统有效实施存活性动态重配置策略提供了一种可行思路. 相似文献
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基于改进模拟植物生长算法的配电网重构 总被引:2,自引:0,他引:2
针对模拟植物生长算法所存在的需遍历搜索区域进行寻优导致计算量太大的问题。将支路交换算法中所用的启发式交换规则与之相结合。提出一种用于配电网重构的改进模拟植物生长算法。所提方法的主要优点,是在保留模拟植物生长算法所具备的全局寻优能力的同时,大大减少每一步计算中所产生的生长点集的数量,因而减少相应的潮流计算、目标函数值计算及形态素浓度计算的次数即计算量.对IEEE33节点系统的计算结果,验证所提方法的有效性。 相似文献
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The paper addresses the disturbance decoupling problem by dynamic measurement feedback for discrete event systems. The mathematical technique called the pair algebra of partitions is used. The paper gives sufficient solvability conditions and a procedure to compute the required feedback. Copyright © 2014 John Wiley & Sons, Ltd. 相似文献
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一类非线性离散时间系统的神经网络解耦策略 总被引:6,自引:3,他引:3
考虑用神经网络作为补偿器,对一类非线性系统进行输入输出解耦.给出了这类系统的可解耦的充要条件,并证明在该条件下系统可解耦成线性系统且极点可任意配置.基于此,给出了这类系统的一个神经网络解耦方法. 相似文献