检索结果-内蒙古大学图书馆

On Robust Stability of Limit Cycles for Hybrid Systems with Multiple Jumps

IFAC-PapersOnLine 2015年第27期48卷 199-204页

作者： Lou, Xuyang Li, Yuchun Sanfelice, Ricardo G. Key Laboratory of Advanced Process Control for Light Industry Ministry of Education Jiangnan University Wuxi214122 China Department of Computer Engineering University of California Santa CruzCA95064 United States

In this paper, we address stability and robustness properties of hybrid limit cycles for a class of hybrid systems with multiple jumps in one period. The main results entail equivalent characterizations of stability of hybrid limit cycles for hybrid systems. The hybrid limit cycles may have multiple jumps in one period and the jumps are allowed to occur on sets. Conditions guaranteeing robustness of hybrid limit cycles are also presented. © 2015, IFAC (International Federation of Automatic control) Hosting by Elsevier Ltd. All rights reserved.

关键词： System stability Convergence of numerical methods Hybrid systems Robustness (control systems) Limit cycle Multiple jumps Robust stability Stability and robustness

来源：评论

学校读者我要写书评

暂无评论

Model-Free H2/H∞ Predictive control for Discrete-Time System via Q-Learning 13

Model-Free H2/H∞ Predictive Control for Discrete-Time Syste...

引用

13th IEEE Data Driven control and Learning Systems Conference, DDCLS 2024

作者： Lin, Yihong He, Peng Wan, Haiying Liu, Zhuangyu Luan, Xiaoli Liu, Fei Institute of Automation Jiangnan University Key Laboratory of Advanced Process Control for Light Industry Ministry of Education Wuxi214122 China

ISBN: (纸本)9798350361674

This paper presents a model-free H2/H∞ Q-learning predictive control strategy for linear discrete-time systems. To design predictive controller with the system measured states, a policy iteration solution algorithm is employed to approximate the control inputs. Specifically, the developed algorithm is formulated in the form of linear matrix inequalities, designed to stabilize the system with mixed H2/H∞ control performance. Additionally, to improve robust performance under system disturbance variations, we introduce the receding horizon optimization into the Q-learning based predictive control. Finally, simulation results demonstrate the effectiveness of the proposed approach. © 2024 IEEE.

关键词： H2/H∞ performance index Model-free predictive control Q-learning Receding horizon optimization Unknown discrete-time systems

来源：评论

学校读者我要写书评

暂无评论

Finite-time stabilization for Markov jump systems governed by deterministic switches 19

Finite-time stabilization for Markov jump systems governed b...

引用

19th IFAC World Congress on International Federation of Automatic control, IFAC 2014

作者： Zhao, Chongzhong Luan, Xiaoli Liu, Fei Key Laboratory of Advanced Process Control for Light Industry Ministry of Education Institute of Automation Jiangnan University Wuxi214122 China

ISBN: (纸本)9783902823625

The problem of controller synthesis in a fixed time interval for discrete-time switching Markov jump systems is dealt with in this paper. Compared with the existing results, the new proposed stabilization conditions are obtained by permitting the stochastic Lyapunov energy function to rise at each switching instant, but the switching signal is constraint by an average dwell time. Finally, the validity of the obtained results is demonstrated with an example. © IFAC.

关键词： Time switches

来源：评论

学校读者我要写书评

暂无评论

RNGA loop pairing criterion for multivariable systems subject to a class of reference inputs 19

RNGA loop pairing criterion for multivariable systems subjec...

引用

19th IFAC World Congress on International Federation of Automatic control, IFAC 2014

作者： Chen, Qiang Luan, Xiaoli Liu, Fei Key Laboratory of Advanced Process Control for Light Industry Ministry of Education Institute of Automation Jiangnan University Wuxi214122 China

ISBN: (纸本)9783902823625

This paper aims to generalize the loop interaction measurement, relative normalized gain array (RNGA), for multivariable systems regarding a class of reference inputs. In the existing studies, RNGA loop pairing criterion is analyzed and widely utilized on the basis of detailed assumption of step reference input. For multivariable systems under step, ramp and other general types of set-point changes, the general loop pairing technique is put forward, and the average residence time is calculated in terms of first order plus delay time and second order plus delay time processes. The analysis results show RNGA based control-loop configuration is independent of input signals, and available to multivariable systems for various reference inputs. Several examples are employed to demonstrate the effectiveness and universality of the pairing approach of this paper. © IFAC.

关键词： Multivariable systems

来源：评论

学校读者我要写书评

暂无评论

A pattern recognition approach to model a class of complex systems

引用

Journal of Computational Information Systems 2011年第13期7卷 4636-4643页

作者： Xu, Zhengguang Wu, Jinxia Wang, Yongmao School of Automation University of Science and Technology Beijing Beijing 100083 China Key Laboratory of the Ministry of Education for Advanced Control of Iron and Steel Process University of Science and Technology Beijing Beijing 100083 China

This paper details a novel approach for describing dynamics of complex systems by pattern recognition techniques. It is a new statistical modeling method to solve the problems that some production processes can not be described precisely. Different from traditional pattern recognition method, moving pattern is presented to describe the dynamics directly. Based on the actual running status data, pattern moving space is constructed and a moving variable-pattern class variable is defined to reflect the moving of pattern. The prediction model is also designed based on pattern class variable. Simulation results are presented to support the theoretical development for a class of production process systems. © 2011 Binary Information Press December, 2011.

关键词： Information systems

来源：评论

学校读者我要写书评

暂无评论

LWS based PCA subspace ensemble model for soft sensor development

引用

IFAC-PapersOnLine 2018年第18期51卷 649-654页

作者： Shi, Xudong Xiong, Weili School of Internet of Things Engineering Jiangnan University WuxiJiangsu Province China Key Laboratory of Advanced Process Control for Light Industry of Ministry of Education Jiangnan University WuxiJiangsu Province China

Most regression approaches, such as principal component analysis (PCA), are based on an assumption that the process data follow a Gaussian distribution. However, the process data usually dissatisfy that assumption. Thus, the locally weighted standardization (LWS) method is employed for transforming data into an approximate Gaussian distribution. Furthermore, the LWS based subspace PCA ensemble modeling method is developed. The subspace PCA can select important variables in each subspace for ensemble modeling. As a result, the proposed method gives a weaker assumption constrain and a better regression performance. The effectiveness of this approach is testified by two study cases. © 2018

关键词： Gaussian distribution Metadata Principal component analysis Ensemble learning Ensemble modeling Non Gaussian data PCA subspaces process data Soft sensors Study case

来源：评论

学校读者我要写书评

暂无评论

Novel control Vector Parameterization Method with Differential Evolution Algorithm and Its Application in Dynamic optimization of chemical processes

引用

Chinese Journal of chemical Engineering 2013年第1期21卷 64-71页

作者：孙帆钟伟民程辉钱锋 Key Laboratory of Advanced Control and Optimization for Chemical Processes (Ministry of Education) East China University of Science and Technology Department of Automation East China University of Science and Technology

Two general approaches are adopted in solving dynamic optimization problems in chemical processes, namely, the analytical and numerical methods. The numerical method, which is based on heuristic algorithms, has been widely used. An approach that combines differential evolution （DE） algorithm and control vector parameteri- zation （CVP） is proposed in this paper. In the proposed CVP, control variables are approximated with polynomials based on state variables and time in the entire time interval. Region reduction strategy is used in DE to reduce the width of the search region, which improves the computing efficiency. The results of the case studies demonstrate the feasibility and efficiency of the oroposed methods.

关键词： control vector pararneterization differential evolution algorithm dynamic optimization chemical processes

来源：评论

学校读者我要写书评

暂无评论

Analytical design of centralized PI controller for high dimensional multivariable systems

Analytical design of centralized PI controller for high dime...

引用

10th IFAC Symposium on Dynamics and control of process Systems, DYCOPS 2013

作者： Chen, Qiang Luan, Xiaoli Liu, Fei Key Laboratory for Advanced Process Control of Light Industry of the Ministry of Education Institute of Automation Jiangnan University Wuxi 214122 China

ISBN: (纸本)9783902823595

This paper presents a simple analytical method for the design of full matrix PI controller based on the direct synthesis approach. By proposing the practically desired closed-loop diagonal transfer function to reduce interactions between individual loops, analytical expressions for PI controller are derived for several common types of process models, including first order plus time delay models and second order plus time delay models. Compared with the existing direct synthesis approaches, the proposed controller design method requires no approximation of the inverse of process model or Maclaurin's series expansion. Furthermore, it is applicable to high dimensional multivariable systems with satisfactory performance and robustness. Several examples are introduced to demonstrate the effectiveness and simplicity of the design method. © IFAC.

关键词： Multivariable systems

来源：评论

学校读者我要写书评

暂无评论

Conjugate gradient based Cholesky CMA-ES estimation algorithms for Hammerstein systems 41

Conjugate gradient based Cholesky CMA-ES estimation algorith...

引用

第41届中国控制会议

作者： Yawen Mao Chen Xu School of Science Jiangnan University Key Laboratory of Advanced Process Control for Light Industry (Ministry of Education) School of Internet of Things EngineeringJiangnan University

ISBN: (数字)9789887581536

ISBN: (纸本)9781665482561

This paper studies the parameter estimation problems of nonlinear systems with colored noise using the covariance matrix adaptation evolution strategy(CMA-ES),which is one of the most competitive evolutionary algorithms available and has been applied in the area of reinforcement learning and process ***,a major limit ationthatimpedes the application of the CMA-ES is the high computational complexity caused by matrix *** alleviate this problem,an efficient Cholesky CMA-ES is proposed,which uses the Cholesky factor instead of the covariance matrix to reduce the computational complexity,and updates the search direction and distribution mean based on the conjugate gradient method to further improve the search *** virtue of the auxiliary model identification idea,the Cholesky CMA-ES can be applied to the parameter estimation problems of the Hammerstein nonlinear systems with colored noise.A simulation example is provided to demonstrate its effectiveness.

关键词： Nonlinear system Evolution strategy Cholesky factor Conjugate gradient method Parameter estimation

来源：评论

学校读者我要写书评

暂无评论

On set stabilization for genetic regulatory networks 35

On set stabilization for genetic regulatory networks

引用

第35届中国控制会议

作者： LI Fangfei LI Jianning YU Zhaoxu School of Automation Hangzhou Dianzi University Department of Mathematics East China University of Science and Technology Key Laboratory of Advanced Control and Optimization for Chemical Processes of Ministry of Education East China University of Science and Technology

ISBN: (纸本)9781509009107

Set stabilization for Boolean networks which is a kind of genetic regulatory networks is considered in this paper. An algorithm is provided to achieve the set stability for Boolean networks by changing the columns of the transition matrices of Boolean networks. Then, pinning nodes can be selected. Furthermore, pinning control design algorithm is given. Finally, the model for infection of the bacterium is presented to illustrate the effectiveness of the proposed results.

关键词： Boolean networks set stabilization pinning control semi-tensor product

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

学科分类号

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

学科分类号

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：