检索结果-内蒙古大学图书馆

作者： Cai, Yunze Wang, Hua O. Tanaka, Kazuo Xu, Xiaoming Department of Automation Shanghai Jiao Tong University Key Laboratory of System Control and Information Processing 800 Dongchuan Rd. Shanghai 200240 China Department of Mechanical Engineering Boston University Boston MA 02215 United States Department of Mechanical Systems and Intelligent Systems University of Electro-Communications Tokyo 182-8585 Japan Department of Automation Shanghai Jiao Tong University 800 Dongchuan Rd. Shanghai 200240 China University of Shanghai for Science and Technology 16 Jun Gong Rd. Shanghai 200093 China

ISBN: (纸本)9781457700804

This paper addresses a robust H∞ filtering problem for networked systems that are subject to both random transmission delays and packet dropouts. To start with, a data transmission model is established by employing random series with Bernoulli distributions. A sufficient condition for robust stability with H∞ constraints is derived for the filtering error system. The robust filter is designed in terms of the feasibility of a linear matrix inequality (LMI). The numerical examples are provided to show the effectiveness of the data transmission model and the proposed filtering method. © 2011 AACC American Automatic control Council.

关键词： Linear matrix inequalities

来源：评论

学校读者我要写书评

暂无评论

Constrained stabilization of a two-input buck-boost DC/DC converter using a set-theoretic method

Constrained stabilization of a two-input buck-boost DC/DC co...

引用

2011 American control Conference (ACC)

作者： Veaceslav Spinu Mircea Lazar Georges Bitsoris The Department of Electrical Engineering Eindhovan University of Technology Eindhoven Netherlands The Control Systems Laboratory University of Patras Patras Greece

This paper considers the problem of constrained stabilization of a two-input buck-boost DC/DC converter by linear state-feedback. It is demonstrated that, via an appropriate change of coordinates, a recent synthesis technique for constrained bilinear discrete-time systems can be applied to an averaged nonlinear model of the converter. Moreover, it is proven that the synthesis method yields a polyhedral constrained control invariant set for the converter model in the original coordinate system. The synthesis algorithm requires solving a single linear program off-line. An extensive simulation case study along with a preliminary, successful real-time experiment, demonstrate the effectiveness of the proposed methodology.

关键词： Nonlinear systems DC-DC power converters Lyapunov methods Stability analysis Trajectory Pulse width modulation Inductors

来源：评论

学校读者我要写书评

暂无评论

Higher-order model-free adaptive control for a class of discrete-time SISO nonlinear systems

Higher-order model-free adaptive control for a class of disc...

引用

2011 China control and Decision Conference(2011中国控制与决策会议 CCDC)

作者： Shangtai Jin Zhongsheng Hou Ronghu Chi Advanced Control Systems Laboratory of School of Electronic and Information Engineering Beijing Jia Advanced ControlSystems Laboratory of School of Electronic and Information Engineering Beijing Jiaot School of Automation and Electrical Engineering Qingdao University of Science and Technology Qingd

A higher-order model-free adaptive control scheme is proposed for a class of discrete-time SISO nonlinear systems. The control scheme consists of the adaptive control law, parameter estimation law and reset mechanism. The controller design depends merely on the input and the output measurement data of the controlled plant. The proposed scheme can improve the control performance by using more error information derived from previous sampling time instants. The theoretical analysis shows that the proposed control scheme can guarantee the bounded input and bounded output (BIBO) stability. The simulation results further verify the effectiveness of the proposed control scheme.

关键词： Model-free adaptive control pseudo-partial derivative higher-order control scheme I/O data

来源：评论

学校读者我要写书评

暂无评论

SPC and Kalman filter-based fault detection and diagnosis for an air-cooled chiller

引用

Frontiers of Electrical and Electronic engineering in China 2011年第3期6卷 412-423页

作者： Biao SUN Peter B.LUH Zheng O’NEILL Center for Intelligent and Networked Systems Department of AutomationTsinghua UniversityBeijing 100084China The Tsinghua-UTC Research Institute for Integrated Building Energy Safety and Control SystemTsinghua UniversityBeijing 100084China Department of Electrical and Computer Engineering University of ConnecticutStorrsCT 06269USA United Technology Research Center United Technologies CorporationHartfordCT 06108USA

Buildings worldwide account for nearly 40%of global energy *** biggest energy consumer in buildings is the heating,ventilation and air conditioning(HVAC)*** HVAC systems,chillers account for a major portion of the energy *** chillers in good conditions through early fault detection and diagnosis is thus a critical *** this paper,the fault detection and diagnosis for an air-cooled chiller with air coming from outside in variable flow rates is *** problem is difficult since the air-cooled chiller is operating under major uncertainties including the cooling load,and the air temperature and flow rate.A potential method to overcome the difficulty caused by the uncertainties is to perform fault detection and diagnosis based on a gray-box model with parameters regarded as *** method is developed and verified by us in another paper for a water-cooled chiller with the uncertainty of cooling *** verification used a Kalman filter to predict parameters of a gray-box model and statistical process control(SPC)for measuring and analyzing their variations for fault detection and *** gray-box model in the method,however,requires that the air temperature and flow rate be nearly *** introducing two new parameters and deleting data points with low air flow rate,the requirement can be satisfied and the method can then be applicable for an air-cooled *** simulation results show that the method with the revised model and some data points dropped improved the fault detection and diagnosis(FDD)performance *** can detect both sudden and gradual air-cooled chiller capacity degradation and sensor faults as well as their recoveries.

关键词： air-cooled chiller fault detection and diagnosis(FDD) statistical process control(SPC) Kalman filter

来源：评论

学校读者我要写书评

暂无评论

Modeling and optimal control of travel times and traffic emission on freeways

引用

IFAC Proceedings Volumes 2011年第1期44卷 13058-13063页

作者： Alfréd Csikós Tamás Luspay István Varga Budapest University of Technology and Economics Department of Control and Transport Automation. H-1111. Budapest Bertalan Lajos u. 2 Hungary Systems and Control Laboratory Computer and Automation Research Institute. H-1111. Budapest Kende u. 13-17 Hungary

Abstract In this paper a modeling method and a control approach is proposed for minimising both travel times and traffic emission on freeways. A simulation-based investigation among emission models is performed to determine the model to be engaged for a model-based control. The chosen model is imposed on a second-order macroscopic traffic model. A constrained LQ control is proposed for optimization. An emission-optimal control and a multicriteria (travel time and emission) optimization are compared to conventional, solely travel-time optimal control. Simulations prove that ramp metering can be used to reduce both emission and travel times on motorways.

关键词： traffic control traffic/emission modeling constrained control

来源：评论

学校读者我要写书评

暂无评论

Discrete-time adaptive iterative learning control for permanent magnet linear motor

Discrete-time adaptive iterative learning control for perman...

引用

IEEE Conference on Cybernetics and Intelligent systems

作者： Shangtai Jin Zhongsheng Hou Ronghu Chi Yongqiang Li Advanced Control Systems Laboratory of School of Electronic and Information Engineering Beijing Jiaotong University BJTU Beijing China School of Automation and Electrical Engineering Qingdao University of Science and Technology Qingdao China

A discrete-time adaptive iterative learning control approach (DAILC) is presented for improving the permanent magnet linear motor velocity tracking performance. The learning gain can be updated iteratively along the learning axis and pointwisely along the time axis. When the initial states are random and the reference trajectory and disturbance are iteration-varying, the DAILC can achieve the pointwise convergence over a finite time interval asymptotically along the iterative learning axis. The theoretical analysis and simulation results further verify the effectiveness of the proposed approach.

关键词： Trajectory Permanent magnet motors Permanent magnets Force Target tracking Convergence Pi control

来源：评论

学校读者我要写书评

暂无评论

Identification of fractional order model structures using conversion of infinite terms of a response to finite terms

Identification of fractional order model structures using co...

引用

International Conference on Electrical and Electronics engineering, ELECO

作者： Peyman Nazarian Mohammad Haeri Electrical Engineering Department Islamic Azad University Zanjan Iran Advanced Control Systems Laboratory Electrical Engineering Department Sharif University of Technology Tehran Iran

In this paper, a new method is proposed to determine parameters of some types of fractional order models to represent a system dynamics using its step response. The model structure is assumed to have rational commensurate order as α=M/N. By this assumption infinite terms of the model step response is converted into finite terms limited to N. The proposed method is practically applicable on all fractional order model structures due to the order approximation imposed by the limited precisions in available computational tools.

关键词： Noise Noise measurement Estimation Computational modeling Accuracy Mathematical model Parameter estimation

来源：评论

学校读者我要写书评

暂无评论

Unfalsified Adaptive control: Inter-falsification and self-falsification

Unfalsified Adaptive Control: Inter-falsification and self-f...

引用

World Congress on Intelligent control and automation (WCICA)

作者： Huiyu Jin Michael W. Chang Michael G. Safonov Jin Zhu Zhi Wang Department of Automation University of Science and Technology Hefei Anhui China Electrical Engineering Systems Department University of Southern California Los Angeles CA USA State Key Laboratory of Industrial Control Technology University of Zhejiang Hangzhou Zhejiang China

controller switching algorithms used for Unfalsified Adaptive control are investigated. The concept of interfalsification, a generalization of the existing ε-hysteresis algorithm, is defined; the concept of self-falsification is introduced; and the two concepts are compared. New controller switching algorithms are designed based on the idea of self-falsification. These algorithms relax the assumption that the cost function be monotonically nondecreasing in time, and are thus more flexible than the existing inter-falsification algorithm. Simulations illustrate that the self-falsification algorithms can be used with non-monotone cost functions.

关键词： Switches Cost function Algorithm design and analysis Adaptive control Stability analysis Classification algorithms

来源：评论

学校读者我要写书评

暂无评论

Research on STATCOM principle and control technology

Research on STATCOM principle and control technology

引用

International Conference on Consumer Electronics, Communications and Networks

作者： Ying Zhao Bo-wen Sun Department of Electrical Engineering Tianjin Key Laboratory for Control Theory & Applications in Complicated Systems Tianjin University of Technology Tianjin China

It's introduced domestic and overseas current development of Static Synchronous Compensator, and analyzed principle of STATCOM, and combining lots of information, respectively summarized the control technique of S... 详细信息

ISBN: (纸本)9781612844589

关键词： Automatic voltage control Current control Power system dynamics Reactive power Regulators

来源：评论

学校读者我要写书评

暂无评论

Evolutionary dynamics on stochastic evolving networks for multiple-strategy games

引用

Physical Review E 2011年第4期84卷 046111-046111页

作者： Bin Wu Da Zhou Long Wang Center for Systems and Control State Key Laboratory for Turbulence and Complex Systems College of Engineering Peking University Beijing 100871 China School of Mathematical Sciences Peking University Beijing 100871 China MOE Key Laboratory of Bioinformatics and Bioinformatics Division TNLIST Department of Automation Tsinghua University Beijing 100084 China

Evolutionary game theory on dynamical networks has received much attention. Most of the work has been focused on 2×2 games such as prisoner's dilemma and snowdrift, with general n×n games seldom addressed. In particular, analytical methods are still lacking. Here we generalize the stochastic linking dynamics proposed by Wu, Zhou, Fu, Luo, Wang, and Traulsen [PLoS ONE 5, e11187 (2010)] to n×n games. We analytically obtain that the fast linking dynamics results in the replicator dynamics with a rescaled payoff matrix. In the rescaled matrix, intuitively, each entry is the product of the original entry and the average duration time of the corresponding link. This result is shown to be robust to a wide class of imitation processes. As applications, we show both analytically and numerically that the biodiversity, modeled as the stability of a zero-sum rock-paper-scissors game, cannot be altered by the fast linking dynamics. In addition, we show that the fast linking dynamics can stabilize tit-for-tat as an evolutionary stable strategy in the repeated prisoner's dilemma game provided the interaction between the identical strategies happens sufficiently often. Our method paves the way for an analytical study of the multiple-strategy coevolutionary dynamics.

关键词： GAME theory STOCHASTIC analysis MATRICES BIODIVERSITY DYNAMICS

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：