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具有固定闭环极点的同时稳定 被引量:2
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作者 肖建 《控制理论与应用》 EI CAS CSCD 北大核心 1990年第1期40-46,共7页
本文讨论了具有固定闭环极点的同时稳定问题,给出了该问题有解的充要条件和控制器的计算方法。
关键词 团环极点 同时稳定 鲁棒控制
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基于强传递性的线性时不变系统同时稳定化的充分条件
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作者 于天秋 刘世伟 《控制理论与应用》 EI CAS CSCD 北大核心 2013年第7期880-884,共5页
本文考虑了离散线性时不变系统的同时稳定化问题.基于强传递性的方法,本文利用互素因子分解法建立了同时存在多个稳定控制器的充分条件.此外,在这个条件下,本文提出了同时稳定3个系统的控制器的设计方法.最后,给出了一个例子验证结果的... 本文考虑了离散线性时不变系统的同时稳定化问题.基于强传递性的方法,本文利用互素因子分解法建立了同时存在多个稳定控制器的充分条件.此外,在这个条件下,本文提出了同时稳定3个系统的控制器的设计方法.最后,给出了一个例子验证结果的有效性. 展开更多
关键词 同时稳定 线性时不变系统 互素因子分解 强传递性 控制器
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一类变长度棱边多项式鲁棒稳定性半径计算方法
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作者 刘娟 伍清河 《火力与指挥控制》 CSCD 北大核心 2007年第8期17-19,27,共4页
利用变长度棱边多项式的概念,P I控制器鲁棒镇定区间对象族问题归结为4个变长度棱边多项式的同时稳定性问题,这4个变长度多项式可用标称系统(区间对象族的中点)和一个实参数(稳定性半径)表示。将这个同时稳定性问题转化为实的结构奇异... 利用变长度棱边多项式的概念,P I控制器鲁棒镇定区间对象族问题归结为4个变长度棱边多项式的同时稳定性问题,这4个变长度多项式可用标称系统(区间对象族的中点)和一个实参数(稳定性半径)表示。将这个同时稳定性问题转化为实的结构奇异值问题。基于这个结果,可用μ工具箱进行优化计算,P I控制器镇定区间对象族的闭环控制系统的稳定性半径被确定。方法是基于扫频的,但扫频是立即的。最后,用数值实例说明所给方法的有效性。 展开更多
关键词 变长度棱边多项式 结构奇异值(μ) 同时稳定 稳定半径
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变长度棱边多项式鲁棒稳定性的结构奇异值方法
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作者 刘娟 伍清河 《电机与控制学报》 EI CSCD 北大核心 2005年第5期466-468,472,共4页
为了研究一阶控制器鲁棒镇定区间对象族问题,采用变长度棱边多项式和多项式矩阵的稳定性半径的概念,研究了区间镇定问题转化后的4个变长度棱边多项式的同时稳定问题,这4个变长度多项式可用标称系统和一个实参数表示,并给出了这个同时稳... 为了研究一阶控制器鲁棒镇定区间对象族问题,采用变长度棱边多项式和多项式矩阵的稳定性半径的概念,研究了区间镇定问题转化后的4个变长度棱边多项式的同时稳定问题,这4个变长度多项式可用标称系统和一个实参数表示,并给出了这个同时稳定问题转化后的实结构奇异值问题,利用MATLABΜ工具箱进行优化,可以确定稳定性半径。用数值实例对方法进行了验证。 展开更多
关键词 变长度棱边多项式 结构奇异值 同时稳定
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多重系统同时极点配置的动态补偿器的设计
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作者 张新家 戴冠中 《控制理论与应用》 EI CAS CSCD 北大核心 1993年第3期278-287,共10页
本文研究了多重系统同时稳定或极点配置的控制器设计问题。同时稳定或极点配置是出于设计容错控制系统之所需。本文推导了由一个动态补偿器对多重系统进行同时极点配置的充分条件。对于单输入或单输出的情况,上述充分条件也是必要的。... 本文研究了多重系统同时稳定或极点配置的控制器设计问题。同时稳定或极点配置是出于设计容错控制系统之所需。本文推导了由一个动态补偿器对多重系统进行同时极点配置的充分条件。对于单输入或单输出的情况,上述充分条件也是必要的。文章的最后给出了设计方法以及一个实例。 展开更多
关键词 同时稳定 极点配置 动态补偿器
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泰国投资橡胶工业
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作者 涂学忠(摘译) 《橡胶工业》 CAS 北大核心 2007年第2期95-95,共1页
印度《印度橡胶杂志))2006年100期45页报道:泰国农业和合作部计划2006~2008年期间向该国橡胶工业投资2.85亿美元。该项投资与泰国农业“路线图”一致,目的是为了提高泰国橡胶工业生产效率,增大NR和橡胶制品附加值,同时稳定价格。
关键词 橡胶工业 泰国 投资 生产效率 橡胶制品 同时稳定 路线图 附加值
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Exponential stability and existence of periodic solutions for a class of recurrent neural networks with delays 被引量:1
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作者 戴志娟 《Journal of Southeast University(English Edition)》 EI CAS 2006年第2期286-293,共8页
Both the global exponential stability and the existence of periodic solutions for a class of recurrent neural networks with continuously distributed delays (RNNs) are studied. By employing the inequality α∏k=1^m ... Both the global exponential stability and the existence of periodic solutions for a class of recurrent neural networks with continuously distributed delays (RNNs) are studied. By employing the inequality α∏k=1^m bk^qk≤1/r ∑qkbk^r+1/rα^r(α≥0,bk≥0,qk〉0,with ∑k=1^m qk=r-1,r≥1, constructing suitable Lyapunov r k=l k=l functions and applying the homeomorphism theory, a family of simple and new sufficient conditions are given ensuring the global exponential stability and the existence of periodic solutions of RNNs. The results extend and improve the results of earlier publications. 展开更多
关键词 recurrent neural network global exponential stability periodic solution delay HOMEOMORPHISM Lyapunov function
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辽宁省召开促进生猪生产保障市场供应工作会
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《现代畜牧兽医》 2019年第6期63-63,共1页
5月29日,辽宁省在东港市召开促进生猪生产保障市场供应工作会议,会议提出要促进生猪生产平稳发展,保障猪肉市场有效供给,同时稳定猪肉价格。会议指出,要积极推进产销衔接,科学调控猪肉供给。指导猪肉制品加工销售企业与屠宰企业、生猪... 5月29日,辽宁省在东港市召开促进生猪生产保障市场供应工作会议,会议提出要促进生猪生产平稳发展,保障猪肉市场有效供给,同时稳定猪肉价格。会议指出,要积极推进产销衔接,科学调控猪肉供给。指导猪肉制品加工销售企业与屠宰企业、生猪养殖厂户发展点对点对接。鼓励屠宰企业通过兼并、重组、标准化示范创建,提升规模化、规范化、标准化水平。 展开更多
关键词 猪肉市场 生猪生产 供应工作 辽宁省 有效供给 屠宰企业 肉制品加工 同时稳定
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Synchronization Stability in Weighted Complex Networks with Coupling Delays 被引量:1
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作者 WANG Qing-Yun DUAN Zhi-Sheng +1 位作者 CHEN Guan-Rong LU Qi-Shao 《Communications in Theoretical Physics》 SCIE CAS CSCD 2009年第4期684-690,共7页
Realistic networks display not only a complex topological structure, but also a heterogeneous distribution of weights in connection strengths. In addition, the information spreading through a complex network is often ... Realistic networks display not only a complex topological structure, but also a heterogeneous distribution of weights in connection strengths. In addition, the information spreading through a complex network is often associated with time delays due to the finite speed of signal transmission over a distance. Hence, the weighted complex network with coupling delays have meaningful implications in real world, and resultantly gains increasing attention in various fields of science and engineering. Based on the theory of asymptotic stability of linear time-delay systems, synchronization stability of the weighted complex dynamical network with coupling delays is investigated, and simple criteria are obtained for both delay-independent and delay-dependent stabilities of synchronization states. The obtained criteria in this paper encompass the established results in the literature as special cases. Some examples are given to illustrate the theoretical results. 展开更多
关键词 weighted complex networks coupling delays synchronization stability
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A General Approach for Synchronization of Chaotic Systems with Parameters Perturbation
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作者 LONGMin QIUShui-Sheng PENGFei 《Communications in Theoretical Physics》 SCIE CAS CSCD 2005年第3期455-458,共4页
By making use of the theory of stability for dynamical systems, a general approach for synchronization of chaotic systems with parameters perturbation is presented, and a general method for determining control functio... By making use of the theory of stability for dynamical systems, a general approach for synchronization of chaotic systems with parameters perturbation is presented, and a general method for determining control function is introduced. The Rossler system is employed to verify the effectiveness of the method, and the theoretical results are confirmed by simulations. 展开更多
关键词 CHAOS SYNCHRONIZATION parameters perturbation
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TWO EFFECTIVE STABILITY CRITERIA FOR LINEAR TIME-DELAY SYSTEMS WITH COMPLEX COEFFICIENTS 被引量:2
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作者 Junyu LI Li ZHANG Zaihua WANG 《Journal of Systems Science & Complexity》 SCIE EI CSCD 2011年第5期835-849,共15页
This paper presents a method for directly analyzing the stability of complex-DDEs on the basis of stability switches. Two novel criteria are developed for the stability of a class of complex- DDEs. These results not o... This paper presents a method for directly analyzing the stability of complex-DDEs on the basis of stability switches. Two novel criteria are developed for the stability of a class of complex- DDEs. These results not only generalize some known results in literature but also greatly reduce the complexity of analysis and computation. To validate the effectiveness of the proposed criteria, the stabilization problem of the extended time delay auto-synchronization (ETDAS) control and n time delay auto-synchronization (NTDAS) control are then further investigated, respectively. The numerical simulations are consistent with the above theoretical analysis. 展开更多
关键词 Complex coefficient delay feedback control stability switch time-delay.
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Some Open Problems on Simultaneous Stabilization of Linear Systems
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作者 LI Wang WANG Long YU Wensheng 《Journal of Systems Science & Complexity》 SCIE EI CSCD 2016年第2期289-299,共11页
Simultaneous stabilization of linear systems is a fundamental issue in the system and control theory, and is of theoretical and practical significance. In this paper, the authors review the recent research progress an... Simultaneous stabilization of linear systems is a fundamental issue in the system and control theory, and is of theoretical and practical significance. In this paper, the authors review the recent research progress and the state-of-art results on simultaneous stabilization of single-input single-output linear time-invariant systems. Especially, the authors list the ever best results on the parameters involved in the well known "French Champagne Problem" and "Belgian Chocolate Problem" from the point of view of mathematical theoretical analysis and numerical calculation. And the authors observed that Boston claimed the lower bound of 5 can be enlarged to 0.976461 in 2012 is not accurate. The authors hope it will inspire further study on simultaneous stabilization of several linear systems. 展开更多
关键词 Belgian Chocolate problem French Champagne Problem linear systems simultaneous stabilization.
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Exponential Synchronization of the Linearly Coupled Dynamical Networks with Delays
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作者 Xiwei LIU Tianping CHEN 《Chinese Annals of Mathematics,Series B》 SCIE CSCD 2007年第6期737-746,共10页
In this paper, the authors investigate the synchronization of an array of linearly coupled identical dynamical systems with a delayed coupling. Here the coupling matrix can be asymmetric and reducible. Some criteria e... In this paper, the authors investigate the synchronization of an array of linearly coupled identical dynamical systems with a delayed coupling. Here the coupling matrix can be asymmetric and reducible. Some criteria ensuring delay-independent and delay- dependent global synchronization are derived respectively. It is shown that if the coupling delay is less than a positive threshold, then the coupled network will be synchronized. On the other hand, with the increase of coupling delay, the synchronization stability of the network will be restrained, even eventually de-synchronized. 展开更多
关键词 TIME-DELAY SYNCHRONIZATION Exponential stability Left eigenvector
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Projective Synchronization Between Two Nonidentical Variable Time Delayed Systems
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作者 冯存芳 汪映海 《Communications in Theoretical Physics》 SCIE CAS CSCD 2012年第3期395-399,共5页
In this paper, we propose a method for the projective synchronization between two different chaotic systems with variable time delays. Using active control approach, the suitable controller is constructed to make the ... In this paper, we propose a method for the projective synchronization between two different chaotic systems with variable time delays. Using active control approach, the suitable controller is constructed to make the states of two different diverse time delayed systems asymptotically synchronize up to the desired scaling factor. Based on the Lyapunov stability theory, the sufficient condition for the projective synchronization is calculated theoretically. Numerical simulations of the projective synchronization between Maekey-Glass system and Ikeda system with variable time delays are shown to validate the effectiveness of the proposed algorithm. 展开更多
关键词 projective synchronization different time-delayed chaotic systems variable time delays
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Anti-synchronization of Chaotic Neural Networks with Time Delay
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作者 Suwen Zheng Wanli Yang Xiaodong Xia 《Journal of Systems Science and Information》 2009年第4期359-366,共8页
In the paper, the anti-synchronization problem of the general delayed chaotic neural networks is investigated. For the master and slave systems, we obtain a control law to achieve the state anti-synchronization of two... In the paper, the anti-synchronization problem of the general delayed chaotic neural networks is investigated. For the master and slave systems, we obtain a control law to achieve the state anti-synchronization of two identical chaotic neural networks. By using the Halanay inequality lemma and Lyapunov stability method, we derive a delay indepen- dent sufficient exponential anti-synchronization condition relative to the parameters of the systems and controller gain matrix. The condition is easily verified in practice. Finally, the theoretical results are applied to two delayed chaotic neural networks, and numerical simulations are given to demonstrate the performance of the proposed scheme throughout some examples. 展开更多
关键词 ANTI-SYNCHRONIZATION chaotic neural networks time delay Halanay inequality
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