检索结果-南通市图书馆

具有未知增长率的一类上三角非线性多智能体系统的协同控制

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

鲁东大学学报（自然科学版） 2024年第3期40卷 253-260页

作者：孙泽泽李武全鲁东大学数学与统计科学学院山东烟台264039

基于有向领导者-追随者型的网络拓扑结构,研究了一类具有未知增长率的上三角非线性多智能体系统的协同控制问题。首先,通过引入坐标变换,将原系统转换为带有时间增益的等效系统;其次,针对标称系统进行控制器设计,获得原系统的分布式时... 详细信息

基于有向领导者-追随者型的网络拓扑结构,研究了一类具有未知增长率的上三角非线性多智能体系统的协同控制问题。首先,通过引入坐标变换,将原系统转换为带有时间增益的等效系统;其次,针对标称系统进行控制器设计,获得原系统的分布式时变状态反馈控制器。所设计的控制器能够保证追随者与领导者的输出跟踪误差有界,且闭环系统所有信号有界。最后,利用仿真实例验证了控制方案的有效性。

关键词：未知增长率上三角非线性多智能体系统协同控制时变状态反馈

维普期刊数据库

本科护生对基于OBE理念的“PBL+雨课堂”教学体验的质性研究

在线全文

学校读者我要写书评

暂无评论

卫生职业教育 2024年第11期42卷 69-72页

作者：孙林利李蓉吴帆赵春梅李武全昆明医科大学第二附属医院云南昆明650101

目的了解和探讨本科实习护生在基于OBE理念的“PBL+雨课堂”教学模式中的真实感受,为进一步优化临床护理教学方法提供参考依据。方法采用目的抽样法,选取2023年2—7月在昆明医科大学第二附属医院烧伤科实习的11名护生采用质性研究中... 详细信息

目的了解和探讨本科实习护生在基于OBE理念的“PBL+雨课堂”教学模式中的真实感受,为进一步优化临床护理教学方法提供参考依据。方法采用目的抽样法,选取2023年2—7月在昆明医科大学第二附属医院烧伤科实习的11名护生采用质性研究中的现象学方法进行半结构式访谈,分析资料并提炼主题。结果通过分析、归纳提炼出4个主题:护生的教学体验、教学获益感、综合能力的提升、教学模式的优化。结论基于OBE理念的“PBL+雨课堂”教学模式在本科护理教学实践中给护生带来了积极的情感体验,但尚有不足之处,有待进一步优化以提高教学质量。

关键词：本科护生 OBE理念 PBL教学雨课堂质性研究

维普期刊数据库博看期刊

Prescribed-Time Control of Stochastic Nonlinear Systems with Reduced Control Effort

在线全文

学校读者我要写书评

暂无评论

Journal of Systems Science & Complexity 2021年第5期34卷 1782-1800页

作者： li wuquan KRSTIC Miroslav School of Mathematics and Statistics Science Ludong UniversityYantai 264025China Department of Mechanical and Aerospace Engineering University of CaliforniaSan DiegoLa JollaCA 92093USA

A new prescribed-time state-feedback design is presented for stochastic nonlinear strictfeedback *** from the existing stochastic prescribed-time design where scaling-free quartic Lyapunov functions or scaled quadratic Lyapunov functions are used,the design is based on new scaled quartic Lyapunov *** designed controller can ensure that the plant has an almost surely unique strong solution and the equilibrium at the origin of the plant is prescribed-time mean-square *** that,the authors redesign the controller to solve the prescribed-time inverse optimal mean-square stabilization *** merit of the design is that the order of the scaling function in the controller is reduced dramatically,which effectively reduces the control *** simulation examples are given to illustrate the designs.

关键词： Control effort prescribed-time design stochastic nonlinear strict-feedback systems

维普期刊数据库

Output-Feedback Tracking of Stochastic Nonlinear Systems Using Homogeneous Domination Approach

在线全文

学校读者我要写书评

暂无评论

Output-Feedback Tracking of Stochastic Nonlinear Systems Usi...

第36届中国控制会议

作者： wuquan li Hui Wang School of Mathematics and Statistics Science Ludong University

ISBN: (纸本)9781538629185

This paper studies the output tracking problem for a class of stochastic nonlinear systems via output-feedback *** most of the existing results where only state-feedback control is considered for output tracking, we allow unmeasurable states exist in this paper. Based on the homogeneous domination technique, an output tracking controller is designed, which can ensure that the tracking error converges to an arbitrarily small neighborhood of zero while keeping all the states of the closed-loop system bounded in probability. Finally, a simulation example is given to illustrate the efficiency of the tracking controller.

关键词： Output-feedback Tracking Stochastic nonlinear systems

Sampled-Data Control of Nonlinear Multi-Agent Systems

在线全文

cnki会议

学校读者我要写书评

暂无评论

Sampled-Data Control of Nonlinear Multi-Agent Systems

第40届中国控制会议

作者： Xiaoyu Xu wuquan li School of Mathematics and Statistics Science Ludong University

We study the distributed output tracking problem by linear sampled-data control for a class of nonlinear multi-agent systems. Specifically, combining the backstepping method with sampled-data method, a series of linear sampled-data controllers are obtained. Stability analysis is performed by using calculus, comparison principle and so on. It is shown that the output tracking error can be tuned arbitrarily small while all the states of the closed-loop system are globally bounded. Finally, a simulation example is given to illustrate the control design.

关键词： Distributed output tracking linear sampled-data control Nonlinear multi-agent systems

Output Feedback Tracking Control of High-order Stochastic Nonlinear Time-delay Systems with Markovian Switching

在线全文

cnki会议

学校读者我要写书评

暂无评论

Output Feedback Tracking Control of High-order Stochastic No...

第三十九届中国控制会议

作者： Yuyao You wuquan li Xiaoxiao Yao School of Mathematics and Statistics Science Ludong University

This paper investigates the output-feedback tracking control for a class of high-order stochastic nonlinear timedelay systems with Markovian switching. By introducing the homogeneous domination approach and choosing an appropriate Lyapunov-Krasoviskii functional, an output-feedback tracking controller is designed. It can guarantee that the closed-loop system has an unique solution, all the states of the closed-loop system are bounded in probability, and the tracking error converges to an arbitrarily small neighborhood of zero. The efficiency of the output-feedback controller is demonstrated by a simulation example.

关键词： Stochastic nonlinear systems Output-feedback Markovian switching Time-varying delay Tracking

Output-feedback stabilization for large-scale stochastic nonlinear systems with unknown control coefficients

在线全文

cnki会议

学校读者我要写书评

暂无评论

Output-feedback stabilization for large-scale stochastic non...

第26届中国控制与决策会议

作者： Fang liu wuquan li College of Health Management Binzhou Medical University School of Mathematics and Statistics Science Ludong University

This paper investigates the decentralized output-feedback control for a class of large-scale high-order stochastic nonlinear systems with unknown control coefficients. By developing a decentralized high gain homogeneous domination approach, it is shown that under some general conditions, the closed-loop system can be proved to be globally asymptotically stable（GAS） in probability. The efficiency of the decentralized output-feedback controller is demonstrated by a simulation example.

关键词： Decentralized control Homogeneous domination Output-feedback High-order stochastic nonlinear.

Adaptive tracking control of stochastic nonlinear systems with unknown powers

在线全文

cnki会议

学校读者我要写书评

暂无评论

Adaptive tracking control of stochastic nonlinear systems wi...

第32届中国控制与决策会议

作者： Huijuan li wuquan li Ying liu School of Mathematics and Statistics Science Ludong University

This paper investigates the adaptive tracking problem for a class of high-order stochastic nonlinear systems with unknown powers and nonlinear *** using the parameter separation technique and adding a power integrator design method,an adaptive controller with upper and lower bounds of the unknown powers is successfully designed to guarantee that all the states of the closed-loop system are bounded in probability and the tracking error can be regulated into a small neighborhood of the origin in ***,a simulation example is provided to illustrate the effectiveness of the designed controllers.

关键词： High-order stochastic nonlinear systems Adaptive tracking control Unknown powers

Slow state estimation for singularly perturbed systems with discrete measurements

在线全文

cnki会议

学校读者我要写书评

暂无评论

Science China(Information Sciences) 2021年第7期64卷 252-254页

作者： Yunli liU Wu-Hua CHEN Xiaomei LU College of Mathematics and Information Science Guangxi University

Dear editor,Many real-world systems exhibit a two-time-scale behavior,such as Hindmarsh-Rose oscillators, DC motors, power networks, and other related systems. Such systems can be modeled using singularly perturbed systems(SPSs). To alleviate the difficulties of high dimensionality and stiffness, Kokotovi′c et al. [1] developed the singular perturbation method for reducing the model order, whereby the full system design is divided into designing separate controllers for fast and slow subsystems. In this regard, O'Reilly [2] proposed a composite full-order observer design method for linear SPSs through observer design in two separate time-scales. Later,

关键词： observer design singularly perturbed systems discrete measurements slow manifold reduced-order observer