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Semi-Global Practical Stability of Random Systems and Its Application
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作者 YANG Cun WU Zhaojing FENG Likang 《Journal of Systems Science & Complexity》 SCIE EI CSCD 2023年第6期2398-2414,共17页
In this paper,a new stochastic analysis tool on semi-global stability is constructed,for nonlinear systems disturbed by stochastic processes with strongly bounded in probability.The definition of semi-global noise to ... In this paper,a new stochastic analysis tool on semi-global stability is constructed,for nonlinear systems disturbed by stochastic processes with strongly bounded in probability.The definition of semi-global noise to state practical stability in probability and its Lyapunov criterion for random systems are presented.As a major application of stability,the semi-global practical tracking of random nonlinear systems based on dynamic surface control technique is considered.The trajectory tracking of manipulator robot driven by direct current motors is carried out in simulation to illustrate the effectiveness and feasibility of the control scheme. 展开更多
关键词 Dynamic surface control random disturbance ROBOT semi-global practical stability
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具有量化误差的多步长非线性采样系统的镇定
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作者 余宏旺 汪志鸣 张宝善 《数学物理学报(A辑)》 CSCD 北大核心 2012年第1期13-26,共14页
该文研究一类非线性控制系统在采样器采样过程中产生量化误差的情况下多步长采样镇定问题.运用近似DTD方法,在非线性系统的近似离散时间模型上设计全局状态反馈镇定控制器.当系统近似误差和采样量化溟差被限制在一定的条件下,可以得到... 该文研究一类非线性控制系统在采样器采样过程中产生量化误差的情况下多步长采样镇定问题.运用近似DTD方法,在非线性系统的近似离散时间模型上设计全局状态反馈镇定控制器.当系统近似误差和采样量化溟差被限制在一定的条件下,可以得到含量化误差的多步长非线性采佯系统是半全局实用渐近稳定.最后,仿真例子验证了所得结果的有效性. 展开更多
关键词 多步长采样 量化误差 半全局实用渐近稳定.
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多个李雅普诺夫函数方法与实际渐近稳定 被引量:1
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作者 韩晓明 傅希林 《科学技术与工程》 2003年第5期393-394,共2页
利用多个李雅普诺夫函数方法得到非线性微分系统关于两个测度的实际渐近稳定。
关键词 李雅普诺夫函数 非线性微分系统 测度 积分 李普希兹条件
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On the model-based networked control for singularly perturbed systems 被引量:1
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作者 Hongwang YU Zhiming WANG Yufan ZHENG 《控制理论与应用(英文版)》 EI 2008年第2期153-162,共10页
In this paper, the control of a two-time-scale plant, where the sensor is connected to a linear controller/ actuator via a network is addressed. The slow and fast systems of singularly perturbed systems are used to pr... In this paper, the control of a two-time-scale plant, where the sensor is connected to a linear controller/ actuator via a network is addressed. The slow and fast systems of singularly perturbed systems are used to produce an estimate of the plant state behavior between transmission times, by which one can reduce the usage of the network. The approximate solutions of the whole systems are derived and it is shown that the whole systems via the network control are generally asymptotically stable as long as their slow and fast systems are both stable. These results are also extended to the case of network delay. 展开更多
关键词 Model-based networked control systems Singularly perturbed control systems asymptotically stable Globally practical stability
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Position Control of Flexible Joint Carts Using Adaptive Generalized Dynamics Inversion
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作者 Ibrahim M.Mehedi Mohd Heidir Mohd Shah +3 位作者 Soon Xin Ng Abdulah Jeza Aljohani Mohammed El-Hajjar Muhammad Moinuddin 《Computers, Materials & Continua》 SCIE EI 2022年第3期4691-4705,共15页
This paper presents the design and implementation of Adaptive Generalized Dynamic Inversion(AGDI)to track the position of a Linear Flexible Joint Cart(LFJC)system along with vibration suppression of the flexible joint... This paper presents the design and implementation of Adaptive Generalized Dynamic Inversion(AGDI)to track the position of a Linear Flexible Joint Cart(LFJC)system along with vibration suppression of the flexible joint.The proposed AGDI control law will be comprised of two control elements.The baseline(continuous)control law is based on principle of conventional GDI approach and is established by prescribing the constraint dynamics of controlled state variables that reflect the control objectives.The control law is realized by inverting the prescribed dynamics using dynamically scaledMoore-Penrose generalized inversion.To boost the robust attributes against system nonlinearities,parametric uncertainties and external perturbations,a discontinuous control law will be augmented which is based on the concept of sliding mode principle.In discontinuous control law,the sliding mode gain is made adaptive in order to achieve improved tracking performance and chattering reduction.The closed-loop stability of resultant control law is established by introducing a positive define Lyapunov candidate function such that semi-global asymptotic attitude tracking of LFJC system is guaranteed.Rigorous computer simulations followed by experimental investigation will be performed on Quanser’s LFJC system to authenticate the feasibility of proposed control approach for its application to real world problems. 展开更多
关键词 Adaptive control generalized dynamic inversion moore-penrose generalized inverse sliding mode control lyapunov stability semi-global asymptotic stability
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脉冲微分方程的两度量实用稳定性 被引量:2
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作者 鲍俊艳 高春霞 周彩丽 《数学的实践与认识》 CSCD 北大核心 2008年第9期166-171,共6页
利用向量Lyapunov函数,研究了脉冲微分方程的两度量实用稳定性问题,通过实例对得到的稳定性的结论给予了验证.
关键词 向量Lyapunov函数 实用稳定 一致实用稳定 一致渐近实用稳定
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电力市场实用稳定性的判定条件 被引量:2
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作者 卢占会 李庚银 +1 位作者 周明 杨玉华 《数学的实践与认识》 CSCD 北大核心 2009年第4期54-61,共8页
首次把实用稳定性的理论用于电力市场稳定性的研究中.结合Alvarado提出的电力市场动态模型,利用微分代数方程与特征值技术,从理论上研究电力市场的实用稳定性,并且给出了判断电力市场实用稳定、一致实用稳定和实用渐近稳定性的充分条件... 首次把实用稳定性的理论用于电力市场稳定性的研究中.结合Alvarado提出的电力市场动态模型,利用微分代数方程与特征值技术,从理论上研究电力市场的实用稳定性,并且给出了判断电力市场实用稳定、一致实用稳定和实用渐近稳定性的充分条件.利用这些实用稳定性条件,对于Alvarado给出的数值算例,可方便地利用初始数据判断电力市场模型的实用稳定性,并通过实例提供了假设模型中某个参数在电力市场变化中起主要作用,如何控制电力市场模型实用稳定性的方法.最后利用Maple软件包给出了参数变化引起模型实用稳定和不稳定的图形演示. 展开更多
关键词 电力工程 电力市场 微分代数方程(DAE) 实用稳定性 实用渐近稳定性 Maple软件包
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时标上脉冲混合动态系统实用渐近稳定性(英文)
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作者 杨军 张晓华 《生物数学学报》 CSCD 北大核心 2011年第4期657-665,共9页
在此篇论文中,采用Lyapunov直接法研究了一类时标脉冲混合动态系统关于两个测度的实用稳定性,进而将多个Lyapunov函数法推广到实用渐近稳定的研究中,并得到了相应的结论.
关键词 时标 脉冲混合动态系统 实用渐近稳定性 LYAPUNOV函数
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