检索结果-内蒙古大学图书馆

Evaporator unit as a benchmark for Plug and Play and fault tolerant control *

IFAC Proceedings Volumes 2012年第20期45卷 701-706页

作者： Roozbeh Izadi-Zamanabadi Kasper Vinther Hamed Mojallali Henrik Rasmussen Jakob Stoustrup Danfoss A/S Nordborgvej 81 DK-6430 Nordborg Denmark Faculty of Engineering University of Guilan P.O. Box: 41635-3756 Iran Department of Electronic Systems Section of Automation and Control Aalborg University Aalborg Denmark

This paper presents a challenging industrial benchmark for implementation of control strategies under realistic working conditions. The developed control strategies should perform in a plug & play manner, i.e. adapt to varying working conditions, optimize their performance, and provide fault tolerance. A fault tolerant strategy is needed to deal with a faulty sensor measurement of the evaporation pressure. The design and algorithmic challenges in the control of an evaporator include: unknown model parameters, large parameter variations, varying loads, and external discrete phenomena such as compressor switch on/off or abrupt change in compressor speed.

关键词：

来源：评论

学校读者我要写书评

暂无评论

An alternative EPSAC based control strategy for multivariable time delay processes

An alternative EPSAC based control strategy for multivariabl...

引用

IEEE International Conference on automation, Quality and Testing, Robotics, AQTR

作者： Cristina Ioana Pop Clara M. Ionescu Robin De Keyser Eva Henrietta Dulf Honoriu Valean Adrian Neaga Cosmin Darab Department of Automatic Control Technical University of Cluj Napoca Cluj-Napoca Romania Faculty of Engineering and Architecture EeSA-Department of Electrical energy Systems and Automation Ghent University Gent Belgium

Multivariable time delay processes are difficult to control due to the input-output interactions, as well as multiple time delays that complicate the controller design process. The proposed method presented in this paper consists of a dynamic decoupling strategy - compared to the more general used steady state decoupling techniques - and a delay time compensation (DTC) structure in which the controller is designed based on the Extended Prediction Self Adaptive control (EPSAC) approach. The main concern regarding the proposed method is directed towards the possible lack of robustness against time delay variations - a problem that is frequently encountered in DTC structures. Moreover, the decoupling technique implemented consists in adding supplementary time delay to some input channels of the MIMO process, which may result in a worsening of the robustness problems. The simulations presented show that the proposed method can ensure robust stability and robust performance even for significant time delay variations.

关键词： Delay effects Process control Delay Carbon Robustness Isotopes MIMO

来源：评论

学校读者我要写书评

暂无评论

Additional information and technological training of the future engineers

Additional information and technological training of the fut...

引用

International Conference on Interactive Collaborative Learning (ICL)

作者： Vasil Yurievich Khramov Farida Tagirovna Shageeva Faculty of Control and Automation Kazan National Research Technological University Kazan Russian Federation Department of Engineering education and psychology Kazan National Research Technological University Kazan Russian Federation

Summary form only given. Necessity to introduce additional training (minor) of the future engineers in the sphere of information systems and technologies and content of such program is discussed.

ISBN: (纸本)9781467324250

Summary form only given. Necessity to introduce additional training (minor) of the future engineers in the sphere of information systems and technologies and content of such program is discussed.

关键词： Information systems Educational institutions Training Computational modeling Mathematical model Professional activities

来源：评论

学校读者我要写书评

暂无评论

Comparison of sensor configurations for mass flow estimation of turbocharged diesel engines

Lecture Notes in Control and Information Sciences

引用

Lecture Notes in control and Information Sciences 2012年 418卷 303-326页

作者： Polóni, Tomáš Rohal'-Ilkiv, Boris Alberer, Daniel Del Re, Luigi Johansen, Tor Arne Institute of Automation Measurement and Applied Informatics Faculty of Mechanical Engineering Slovak University of Technology Bratislava Slovakia Institute for Design and Control of Mechatronical Systems Johannes Kepler University Linz Austria Department of Engineering Cybernetics Norwegian University of Science and Technology Trondheim Norway

ISBN: (纸本)9781447122203

The increasing demands on quality of power, emissions and overall performance of combustion engines lay new goals for the hardware and the software development of control systems. High-performance embedded controllers open the possibilities for application of numerical methods to solve the problems of modeling and control of combustion engines. Algorithms for estimation of state and parameters are essential components of many advanced control, monitoring and signal processing engine applications. A widely applicable estimator is given by the Extended Kalman Filter (EKF) which defines a finite memory recursive algorithm suited for real-time implementation, where only the last measurement is used to update the state estimate, based on the past history being approximately summarized by the a priori estimate of the state and the error covariance matrix estimate. The proposed EKF uses an augmented air-path state-space model to estimate unmeasurable mass flow quantities. The EKF algorithm based on the augmented state-space model considerably reduces the modeling errors compared to the open loop estimator simulation and compared to the EKF without the augmentation which is demonstrated on a standard production Diesel engine data. The experimental validation of the observed state quantities is performed against the measured pressures and turbocharger speed data. The estimated mass flow quantities are indirectly validated through the air compressor flow that is directly validated against air mass flow sensor data. Two two-sensor setups are considered in this study. In the first experiment the intake manifold pressure and the turbocharger speed is used. The second experiment uses the intake manifold pressure and the exhaust manifold pressure as the measurement information for the EKF. The second experiment gives more precise mass flow estimate in term of less bias on the estimates, but more variance due to the high frequency exhaust manifold pressure variations caused by the

关键词： Mass transfer

来源：评论

学校读者我要写书评

暂无评论

Design and Implementation of nonlinear neural network controller based on simulator model in Damavand Tokamak

Design and Implementation of nonlinear neural network contro...

引用

第24届中国控制与决策会议

作者： H. Tolouei A. Kouhi H. Rasouli C. Rasouli Advanced Process Automation & Control Laboratory (APAC) faculty of Electrical Engineering Control department K.N. Toosi University of TechnologyTehran Iran Plasma Physics and nuclear fusion institute Institute of nuclear science and technology (AEOI)Tehran Iran.

In this study, nonlinear neural network controller will be developed to control plasma radial motion in Damavand Tokamak. It is essential to have a good model in order to design a proper controller for plasma radial motion. To achieve this goal, actuator circuits are simulated and in consequence based on simulator model and simulated actuator circuits nonlinear neural network controller will be designed in Damavand Tokamak. Comparison between neural network controller output and PD controller output shows the efficiency of proposed approach.

关键词： Tokamak, Actuator circuits, nonlinear neural network controller, Gradient descent algorithm, Momentum algorithm.

来源：评论

学校读者我要写书评

暂无评论

System Identification model for an Intelligent Pneumatic Actuator (IPA) system

System Identification model for an Intelligent Pneumatic Act...

引用

2012 IEEE/RSJ International Conference on Intelligent Robots and Systems

作者： Khairuddin Osman Ahmad 'Athif Mohd Faudzi M.F. Rahmat Nu'man Din Mustafa M. Asyraf Azman Koichi Suzumori Department of Industrial Electronics Faculty of Electrical and Electronics Universiti Teknikal Malaysia Melaka Durian Tunggal Malacca Malaysia Department of Mechatronics and Robotics Engineering Faculty of Electrical Engineering Universiti Teknologi Malaysia Skudai Malaysia Department of Control Instrumentation and Automation Engineering Faculty of Electrical Engineering Universiti Teknologi Malaysia Skudai Malaysia Graduate School of Natural Science and Technology Okayama University Okayama Japan

Intelligent Pneumatic Actuators (IPA) is a new generation of actuator for Research and Development (R&D). The purpose of this paper is to present the System Identification (SI) technique and procedure for the IPA system. System identification is used to obtain the mathematical model (transfer function) of the IPA system from the measured experimental data. Flow for the SI procedure starts with experimental setup, model structure selection, model estimation, model validation and finally testing with basic controller to prove the operation of IPA system. Auto Regressive with Exogenous Input (ARX) model is chosen as model structure of the system. Based on the input and output data of the system (model validation), best fit criterion and correlation analysis of the residual is analyzed to determine the adequate model to represent the IPA system. The result from SI model shows linear discrete model in order to obtain a discrete transfer function for the IPA system.

关键词： Analytical models Data models Silicon Mathematical model Actuators Robots Correlation

来源：评论

学校读者我要写书评

暂无评论

Recent Advances in Analysis and control Design for Switched Fuzzy Systems: A Review

Recent Advances in Analysis and Control Design for Switched ...

引用

IEEE International Conference Intelligent Systems

作者： Vesna Ojleska Tatjana Kolemishevska-Gugulovska Gyorgyi Dymirkovsky SS Cyril and Methodius University in Skopje Faculty of Electrical Eng. and Information Technologies Institute of Automation & Systems Engineering Rugjer Boshkovik bb 1000 Skopje R. Macedonia Faculty of Engineering Depts. of Computer & of Control Engineering Dogus University of Istanbul Acibadem TR-34722 Istanbul R. Turkey

ISBN: (纸本)9781467322768

This paper overviews recent advances in the field of switched fuzzy systems, switched systems whose subsystems are fuzzy systems, followed by the comparative study for this kind of systems. Starting with the basic ideas of switched fuzzy systems, the comparative study is aimed in introducing the diverse approaches in their model construction, as well as the challenges related with the stability analysis and stabilization of such systems. The last includes the issue of stability analysis and finding conditions for existence of switched fuzzy controllers which will stabilize the nonlinear system.

关键词： control fuzzy logic fuzzy systems hybrid systems nonlinear systems switched systems switching Fuzzy systems Stability analysis analytical control design control FUZZY controlLER Nonlinear systems

来源：评论

学校读者我要写书评

暂无评论

Takagi-Sugeno control of the Elevation Channel of A Twin-Rotor System Using Closed-Loop Empirical Data

Takagi-Sugeno Control of the Elevation Channel of A Twin-Rot...

引用

American control Conference

作者： Hamidreza Azimian Alireza Fatehi Babak N. Araabi Department of Mechanical and Materials Engineering The University of Western Ontario (UWO) London ON Canada Advanced Process Automation and Control (APAC) Research Group Industrial Control Center of Excellence Faculty of Electrical and Computer engineering K. N. Toosi University of Technology Tehran Iran School of Electrical and Computer Engineering University of Tehran Tehran Iran

ISBN: (纸本)9781457710957

In this paper, design of Takagi-Sugeno controllers for a twin-rotor system from empirical data is addressed. First, identification of linear models using Prediction Error Method in the presence of nonlinear distortions and in feedback systems is revisited, and it is demonstrated that feedback nonlinear systems with an integral action can be locally represented by linear models rather than affine models. Moreover, it is demonstrated that how the consistency and unbiasedness of the identified models can be improved by proper design of the experiments. In order to ensure that the unmodeled contributions in the resulting piecewise linear model are sufficiently small, a criterion is proposed based on the small-gain theorem that can be used for unfalsification of the piecewise linear model. Finally, by taking advantage of the separation principle, design of fuzzy Takag-Sugeno state feedback and observer is formulated in terms of Linear Matrix Inequalities (LMIs). The implementation results on the actual system demonstrate significant improvements with respect to the initial controller and previous work on similar systems.

关键词： Nonlinear systems Closed loop systems Observers Uncertainty Data models Predictive models

来源：评论

学校读者我要写书评

暂无评论

A self-tuning decentralized PI control for multivariable plant

A self-tuning decentralized PI control for multivariable pla...

引用

IEEE International Conference on control System, Computing and engineering (ICCSCE)

作者： S. I. Samsudin M. F. Rahrnat Norhaliza Abdul Wahab Mashitah Che Razali Muhamad Sani Gaya Sy Najib Sy Salim Faculty of Electronics and Computer Engineering Universiti Teknikal Malaysia Melaka Durian Tunggal Melaka Malaysia Universiti Teknologi Malaysia Skudai Johor MY Department of Control and Instrumentation Engineering Universiti Teknologi Malaysia Skudai Malaysia Department of Control Instrumentation and Automation Universiti Teknikal Malaysia Melaka Durian Tunggal Melaka Malaysia

Tuning of controller is one of the most basic functions in control engineering in obtaining optimal control parameters and hence achieving optimal dynamic responses of the system. The work presents the self-tuning PI controller that potential to auto-tune the controller parameters and adapting the changes in controlled process parameter for a MIMO system. The decentralized PI controller with an adaptive interaction algorithm is developed and tested to nonlinear multivariable wastewater treatment plant. It is aims to self-tune the PI control parameters in regulating the substrate and DO concentrations from a steady state operating point. It was observed that the proposed control structure and the tuning algorithm were successfully tracks the desired set-point with considerable effects in noisy environment.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Development of fuzzy logic water bath temperature controller using MATLAB

Development of fuzzy logic water bath temperature controller...

引用

IEEE International Conference on control System, Computing and engineering (ICCSCE)

作者： Norhaslinda Hasim Mohd Shahrieel Mohd Aras Mohd Zamzuri Ab Rashid Anuar Mohamed Kassim Shahrum Shah Abdullah Department of Control and Automation Faculty of Electrical Engineering Universiti Teknikal Malaysia Melaka Durian Tunggal Malacca Malaysia Department of Mechatronics Faculty of Electrical Engineering Universiti Teknikal Malaysia Melaka Durian Tunggal Malacca Malaysia Department of Electric and Electronics Malaysia-Japan International Institute of Technology Universiti Teknologi Malaysia Kuala Lumpur Malaysia

In this paper, the development of a water bath temperature system to control the liquid's temperature in the water bath will be presented. In order to develop the water bath temperature control system, MATLAB fuzzy logic toolbox will be utilized. The Fuzzy Logic controller (FLC) is designed to control water temperature based on the input acquired from the thermal transducer sensor. The inference engines that are used are; Max-min (Mamdani) method and centre of gravity technique for defuzzification. The 4 × 4 matrix rules for the controller will be used in this project. In addition, the USB NI-DAQ card will be used as xPC target to link the MATLAB software and real time application. The real time output temperature is validated based on the simulation's temperature which is initially set by user. It can be concluded the performance of real time study is in par with the simulation result.

关键词：

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：