检索结果-内蒙古大学图书馆

2010 6th IEEE World Congress on Computational Intelligence, WCCI 2010

作者： Hernando Colina, M. Eliezer Castañeda, M. Wladimir Rodríguez, G. Carlos Parra, O. University of Pamplona Engineering Faculty Systems Engineering Department Pamplona Norte de Santander Colombia Automation and Control Department University of Andes System School Sede la Hechicera Estado Mérida Mérida Venezuela Department of Computer Engineering Faculty System School Sede la Hechicera Estado Mérida Mérida Venezuela

ISBN: (纸本)9781424469208

we propose a new perspective on the identification of linear dynamic system using structural similarity. The proposal consists in the meaningful exploration of each model, specifically behavior of the state variable. The decomposition of the behavior of a state variable in different modes of behavior of a system, each one has a different set of weights and shows different patterns of behavior. These weights are more significant than eigenvalue to develop a new technique for identifying linear system and invariants over time. We use two methods based on different areas of knowledge such as linear algebra and statistics. This paper is a conceptual proof that enriches the implementation and validity not only from point of view algorithmic likewise physic mathematical. © 2010 IEEE.

关键词： Artificial intelligence

来源：评论

学校读者我要写书评

暂无评论

Anti-windup compensation of saturated systems with phase-lead/phase-lag controller

Anti-windup compensation of saturated systems with phase-lea...

引用

International Symposium on Computer Communication control and automation (3CA)

作者： Shyi-Kae Yang Shin-Yong Chen Ming-Hui Chang Jian-Jhou Shyu Department of Automation and Control Engineering Far East University Tainan Taiwan

ISBN: (纸本)9781424455652;9781424455669

In this paper, the phase-lead/phase-lag controller is selected as the main controller to achieve desired performance. Based on the observer-based scheme, an auxiliary compensator of the main controller is designed to improve the performance reduction due to actuator saturation. To obtain the auxiliary controller, the effect of actuator saturation is modeled as a disturbance imported to the main controller and an auxiliary compensator is derived by solving an H ∞ optimization problem. It is shown that the resulting auxiliary controller is only associated with the parameters of the main controller. Therefore, it can be easily implemented to the practical applications.

关键词： control systems Actuators Automatic control Communication system control Stability Transfer functions automation System performance control engineering Performance gain

来源：评论

学校读者我要写书评

暂无评论

New development thoughts on the bio-inspired intelligence based control for unmanned combat aerial vehicle

引用

Science China(Technological Sciences) 2010年第8期53卷 2025-2031页

作者： DUAN HaiBin 1 ,SHAO Shan 2 ,SU BingWei 3 &ZHANG Lei 41 State Key Laboratory of Science and Technology on Holistic Flight control,School of automation Science and Electrical engineering, Beijing University of Aeronautics and Astronautics,Beijing 100191,China 2 Flight control department,Shenyang Aircraft Design and Research Institute,Shenyang 110035,China 3 Beijing Institute of Near Space Vehicle’s System engineering,Beijing 100076,China 4Integration and Project Section,Air Force Equipment Academy,Beijing 100085,China 1. State Key Laboratory of Science and Technology on Holistic Flight Control School of Automation Science and Electrical Engineering Beijing University of Aeronautics and Astronautics Beijing 100191 China2. Flight Control Department Shenyang Aircraft Design and Research Institute Shenyang 110035 China3. Beijing Institute of Near Space Vehicle’s System Engineering Beijing 100076 China4. Integration and Project Section Air Force Equipment Academy Beijing 100085 China

Bio-inspired intelligence is in the spotlight in the field of international artificial intelligence,and unmanned combat aerial vehicle(UCAV),owing to its potential to perform dangerous,repetitive tasks in remote and hazardous,is very promising for the technological leadership of the nation and essential for improving the security of *** the basis of introduction of bioinspired intelligence and UCAV,a series of new development thoughts on UCAV control are proposed,including artificial brain based high-level autonomous control for UCAV,swarm intelligence based cooperative control for multiple UCAVs,hy-brid swarm intelligence and Bayesian network based situation assessment under complicated combating environments, bio-inspired hardware based high-level autonomous control for UCAV,and meta-heuristic intelligence based heterogeneous cooperative control for multiple UCAVs and unmanned combat ground vehicles(UCGVs).The exact realization of the proposed new development thoughts can enhance the effectiveness of combat,while provide a series of novel breakthroughs for the intelligence,integration and advancement of future UCAV systems.

关键词： bio-inspired intelligence unmanned combat aerial vehicle(UCAV) artificial brain autonomous control bayesian network bio-inspired hardware heterogeneous cooperative control

来源：评论

学校读者我要写书评

暂无评论

Error dependent variable feedrate interpolation strategy

Error dependent variable feedrate interpolation strategy

引用

International Symposium on Computer Communication control and automation (3CA)

作者： Kuan-Chen Lin Cong-Hui Huang Yi-Ming Tsao Jui-Chun Wang Tsung-Min Chiu Department of Control and Automation Engineering Far East University Tainan Taiwan

ISBN: (纸本)9781424455652;9781424455669

This paper proposes a novel feedrate interpolation strategy depending on the error feedback information. The proposed strategy incorporates the real-time non-uniform rational B-spline (NURBS) algorithm and is applied in a biaxial contouring stage system. The objective of the strategy is to improve the contouring accuracy to cope with the high-precision standard nowadays. The proposed method does achieve the control purpose that if the detected contouring performance is beyond a given specified value, then the feedrate controller will vary the actual feedrate to provide better contouring accuracy. By real-time adjusting the feedrate depending on the error feedback, contouring error will not accumulate such that the precision can be improved. Many experiments are conducted and the results do show the effectiveness of the proposed method.

关键词： Interpolation Spline Surface topography Surface reconstruction Error correction Automatic control Communication system control automation Computer errors Feedback

来源：评论

学校读者我要写书评

暂无评论

Robust model predictive control for hypersonic vehicle based on LPV

Robust model predictive control for hypersonic vehicle based...

引用

2010 IEEE International Conference on Information and automation, ICIA 2010

作者： Qin, Weiwei Zheng, Zhiqiang Zhang, Li Gang, Liu College of Machtronics and Automation National University of Defense Technology Changsha Hunan 410073 China Department of Automatic Control Second Artillery Engineering Institution Xi'an Shannxi Province710025 China

ISBN: (纸本)9781424457021

For the complicated aerodynamics characteristic and severely uncertainty of nonlinear model of a hypersonic vehicle, a novel Model Predictive controller design methodology based on Linear Parameter-Varying was developed. Firstly, the nonlinear model was transformed into Linear Parameter-Varying form by Jacobian linearization of nonlinear plant about a family of equilibrium points. And then the ploytopic decomposition of LPV models was obtained by tensor-product model transformation method. So the robust controller can be calculated at every sampling time instant, by convex optimization involving LMIs in MPC. The control system of the hypersonic vehicle developed by this method not only avoided the complex design process of nonlinear method, but also restrained the effects of model parameter changes in complicated fight conditions. Therefore, it can provide the longitudinal stability for hypersonic vehicle. The numerical simulation results proved availability of the proposed method. ©2010 IEEE.

关键词： Hypersonic vehicles

来源：评论

学校读者我要写书评

暂无评论

Maintenance of process control algorithms based on dynamic program slicing

Maintenance of process control algorithms based on dynamic p...

引用

IEEE International Symposium on Computer Aided control System Design (CACSD)

作者： Ole Fink Hansen Nils Axel Andersen Ole Ravn Automation and Control Department of Electrical Engineering Technical University of Denmark Denmark

Today's industrial control systems gradually lose performance after installation and must be regularly maintained by means of adjusting parameters and modifying the control algorithm, in order to regain high performance. Industrial control algorithms are complex software systems, and it is particularly difficult to locate causes of performance loss, while readjusting the algorithm once the cause of performance loss is actually realized and found is relatively simple. In this paper we present a software-engineering approach to the maintenance problem, which provides tools for exploring the behavior of a control algorithm, enables maintenance personnel to focus on only relevant parts of the algorithm and semi-automatically locate the part of the algorithm that is responsible for the reduced performance. The solution is tuning-free and can be applied to installed and running systems without modifying the existing control algorithm, which makes the solution well suited for industrial applications.

关键词： Heuristic algorithms Software algorithms Process control control systems Algorithm design and analysis Maintenance engineering Equations

来源：评论

学校读者我要写书评

暂无评论

A current-based security-constrained optimal power flow by multiple particle swarm optimization

A current-based security-constrained optimal power flow by m...

引用

International Conference on Electrical and control engineering, ICECE 2010

作者： Huang, Cong-Hui Huang, Chung-Chi Tsao, Yi-Ming Lin, Kuan-Chen Xiao, Ying-Nan Department of Automation and Control Engineering Far East University Tainan Taiwan

ISBN: (纸本)9780769540313

An Equivalent Current Injection (ECI) based Security-Constrained Optimal Power Flow (SCOPF) is presented in this paper and a Multiple Particle Swarm Optimization (MPSO) is developed for solving non-convex Optimal Power Flow problem. The OPF deals with both continuous and discrete control variables and is a mixed-integer OPF. The continuous control variables modeled are the active power output and generator-bus voltage magnitudes, while the discrete ones are the shunt capacitor devices. And first, security Analysis will be conducted before fault occurred in the system. Ranking method will be used to highlight the most severe event caused by the specific facility. Than, a preventive algorithm will make use of the contingency information, and could be kept the operator system security and avoided congestion when fault occurred. © 2010 IEEE.

关键词： Electric load flow

来源：评论

学校读者我要写书评

暂无评论

A robust stabilization using state feedback with feedforward

A robust stabilization using state feedback with feedforward

引用

作者： Danapalasingam, Kumeresan A. La Cour-Harbo, Anders Chowdhary, Girish Bisgaard, Morten Department of Electronic Systems Section for Automation and Control Aalborg University 9220 Aalborg Denmark Georgia Institute of Technology Daniel Guggenheim School of Aerospace Engineering Atlanta GA United States

ISBN: (纸本)9781424474264

In a general nonlinear control system a stabilizing control strategy is often possible if complete information on external inputs affecting the system is available. Assuming that measurements of persistent disturbances are available it is shown that the existence of a smooth uniform control Lyapunov function implies the existence of a stabilizing state feedback with feedforward control which is robust with respect to measurement errors and external disturbances. Conversely, using differential inclusions parameterized as nonlinear systems with state and disturbance measurement errors, it is shown that there exists a smooth uniform control Lyapunov function if there is a robustly stabilizing state feedback with feedforward. This paper demonstrates that if there exists a smooth control Lyapunov function for a general nonlinear system with persistent disturbances for which one has previously designed a feedback controller, a feedforward always exists to be augmented for stability. © 2010 AACC.

关键词： Lyapunov functions

来源：评论

学校读者我要写书评

暂无评论

Fuzzy sliding mode-based control for PMSG maximum wind energy capture with compensated pitch angle

Fuzzy sliding mode-based control for PMSG maximum wind energ...

引用

International Symposium on Computer Communication control and automation (3CA)

作者： Whei-Min Lin Chih-Ming Hong Ming-Rong Lee Cong-Hui Huang Chung-Chi Huang Bo-Lin Wu Department of Automation and Control Engineering National Sun Yat-Sen University Kaohsiung Taiwan Department of Electrical Engineering Far East University Tainan Taiwan Department of Automation and Control Engineering Far East University Tainan Taiwan

ISBN: (纸本)9781424455652;9781424455669

This paper presents the design of a fuzzy sliding mode loss-minimization control for the speed of a permanent magnet synchronous generator (PMSG) and proportional-integral (PI) for the turbine pitch angle control. The PMSG speed uses maximum power point tracking below the rated speed, which corresponds to low and high wind speed, and the maximum energy can be captured from the wind. A sliding mode controller with an integral-operation switching surface is designed, in which a fuzzy inference mechanism is utilized to estimate the upper bound of uncertainties. Furthermore, the fuzzy inference mechanism with center adaptation is investigated to estimate the optimal bound of uncertainties.

关键词： Fuzzy control Sliding mode control Wind energy Energy capture Pi control Proportional control Inference mechanisms Uncertainty Permanent magnets Synchronous generators

来源：评论

学校读者我要写书评

暂无评论

A Preventive Security-Constrained Optimal Power Flow with Hybrid Genetic-Ant Colony Optimization

A Preventive Security-Constrained Optimal Power Flow with Hy...

引用

2010 International Symposium on Computer,Communication, control and automation

作者： Yi-Ming Tsao Chung-Chi Huang Jing-Fung Lin Department of Automation and Control Engineering Far East University Department of Computer Application Engineering Far East University

This paper presents preventive security-constrained optimal power flow (PSCOPF) with hybrid genetic-ant colony optimization (HGACO) is presented The PSCOPF can be divided into three steps involving security analysis,severest event selection,and preventive ***,Novel security analysis will be conducted before fault occurred in the system by current-based power flow ***,ranking method will be used to highlight the most severe event caused by the specific *** finally,a preventive algorithm will make use of the contingency information,and could be kept the operator system security and avoided congestion when fault *** HGACO is integrated with genetic algorithm and ant colony optimization,and the objective of GA is to improve the searching quality of ants by optimizing themselves to generate a better result,because the ants produced randomly by pheromone process are not necessary *** method can not only enhance the neighborhood search,but can also search the optimum solution quickly to advance convergence.

关键词： optimal power flow preventive securityconstrained OPF hybrid genetic-ant colony optimization,genetic algorithm,ant colony optimization.

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：