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The Mimo Predictive Pid Controller Design

Asian Journal of Control 2008年第4期4卷

作者： M.H. Moradi M.R. Katebi M.A. Johnson Department of Electronic and Electrical Engineering University of Strath-clyde Glasgow GI 1QE UK. Dr. Moradi is a Lecturer in the Department of Electronic and Electrical Engineering University of Bu-Ali Sina in Iran. He obtained the BSc and MSc in 1991 and 1993 from the Sharif University of Technology and Tarbiat Modarres University respectively. Dr. Moradi joined the Bu-Ali Sina University in 1993. In 2002 he obtained his PhD degree from the University of Strath-clyde Glasgow Scotland. His theoretical research interests include predictive PID control advanced classical control generalised predictive control system identification and fault monitoring robust control design computer networks and more recently control through networks. His industrial interests are in the areas of large-scale systems especially power systems and power plant modelling and control supervisory control and process control. Dr. Moradi has published a number of Journal and Conference papers. Dr. Katebi is a senior lecturer in the Department of Electronic and Electrical Engineering University of Strathclyde. His theoretical research interests are currently focused on Non-linear Control and Filtering for Complex Systems Autonomous Control Design System integration and Fault monitoring and Reconfiguration Plant Monitoring through the Internet Discrete Event Simulation Process Optimisation and Robust Control Design. The industrial research interests are in the area of Hot and Rolling for Steel and Aluminium Power Plant Modelling and Control Marine Control Systems Process Control and Wastewater Treatment Control. Dr Katebi is the author/co-author of four books and more than 150 papers and industrial reports. Professor Johnson's academic education began at Coventry University (1969) and continued under the supervision of Professor Greyham Bryant in the field of Control Systems at Imperial College London. He obtained the DIC MSc and PhD from Imperial College leaving for industry in 1978. Subsequent experience was in the

This paper is concerned with the design of Multi-Inputs and Multi-Outputs (MIMO) predictive PID controllers, which have similar performance to that obtainable from model-based predictive controllers. A new PID control structure is defined which incorporates the prediction of future outputs and uses future set point. A method is proposed to calculate the optimal values of the PID gains from generalised predictive control results. A decentralized version of the predictive PID controllers is presented and the stability of the closed loop system is studied. Simulation studies demonstrate the superior performance of the proposed controller compared with a conventional PID controller. The results are also compared with generalised predictive control solutions.

关键词： PID control design predictive PID MIMO controller optimisation

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Adaptive robust attitude tracking control of spacecraft

Adaptive robust attitude tracking control of spacecraft

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IEEE Conference on Control Technology and Applications (CCTA)

作者： R.B. Motlagh M.R.J. Motlagh Electrical Engineering Department Iran University of Science and Technology Iran Assistant Professor of controls in Computer Engineering Department Iran University of Science and Technology Tehran Iran

A nonlinear adaptive-robust scheme is presented to control a class of nonlinear systems. It effectively combines the design techniques of adaptive and robust control to improve performance by retaining the advantages of both techniques. It enhances transient performance and eliminates robustness problems compared to a parameter adaptive control. It also improves tracking performance by reducing modeling uncertainty and optimizes control effort by estimating bound uncertainty compared to a deterministic robust control. The controller is applied to a spacecraft making the body frame track a reference orientation, when there are parametric uncertainty, modeling errors, and external disturbances

关键词： Programmable control Adaptive control Robust control Attitude control Space vehicles Uncertainty Nonlinear control systems Control systems Nonlinear systems Error correction

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Interactive numerical and symbolic simulation: a new paradigm for teaching circuits

Interactive numerical and symbolic simulation: a new paradig...

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Frontiers in Education (FIE) Conference

作者： J.-C. Thomassian E.D. Smith Assistant Professor of Electrical Engineering Central Michigan University USA Electrical Engineering and Computer Science University of Tolctlo and Eötvös Lárand University USA

Too little time is made available in modern four-year electrical engineering and computer science curricula to teach introductory electric circuits and electronics in the traditional manner. The best way to improve the outcome of what can be done is to base it strictly on computer methods including especially the newly developed symbolic circuit simulators as Analog Insydes. Some insight is offered on how the complexity of expression barrier is overcome followed by three examples intended to show the proposed method at work. A concluding section argues that the time spent teaching circuit analysis by computer simulation, numerical and symbolic, is a sound investment It too can be learned in graded steps, and what is learned integrates immediately and seamlessly into everything that follows.

关键词： Numerical simulation Circuit simulation Education Computational modeling computer simulation electrical engineering computer science Analog computers Circuit analysis computing Investments

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Increasing of DGPS Accuracy Using Recurrent Neural Networks

Increasing of DGPS Accuracy Using Recurrent Neural Networks

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第七届国际信号处理会议

作者： M.R.Mosavi Z.Habibi F.Hosseini Assistant Professor Department of Electrical Engineering Behshahr University of Science and Technology Behshahr 48518-78413 Iran BSc. St udents Department of Computer Engineering Behshahr University of Science and Technology Behshahr Iran BSc. St udents Department of Computer Engineering Behshahr University of Science and Technology Behshahr Iran

Differential GPS (DGPS) is used for improving of accuracy in GPS position and velocity estimations. Measurements in DGPS can be obtained as real time with a high level of accuracy. This paper pres

关键词： Differential GPS, Error Prediction, Recurrent Neural Network

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Microwave reflection tomographic array for damage detection of civil structures

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IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION 2003年第11期51卷 3022-3032页

作者： Kim, YJ Jofre, L De Flaviis, F Feng, MQ Assistant Professor Department of Electrical and Computer Engineering University of California Irvine

Microwave tomographic imaging technology using a bifocusing operator has been developed in order to detect the internal voids/objects inside concrete structures. The imaging system consists of several cylindrical or planar array antennas for transmitting and receiving signals, and a numerical focusing operator is applied to the external signals both in transmitting and in receiving fields. An imaging algorithm using numerical focusing operator was developed, which allows the recovery of a two-dimensional object from its scattered field. Numerical simulation demonstrated that a subsurface image can be successfully reconstructed by using the proposed tomographic imaging technology. For the experimental verification, a prototype planar antenna array was fabricated and tested on a concrete specimen.

关键词： damage detection imaging reflection tomography

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Registration of image cubes using multivariate mutual information

Registration of image cubes using multivariate mutual inform...

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Asilomar Conference on Signals, Systems & computers

作者： J.P. Kern M. Pattichis S.D. Stearns Sandia National Laboratories Albuquerque NM Sandia National Laboratories Albuquerque NM USA Assistant Professor of Electrical & Computer Engineering University of New Mexico Albuquerque NM USA Research Professor of Electrical & Computer Engineering University of New Mexico Albuquerque NM

A new method for simultaneously registering a collection of multispectral or hyperspectral images (spectral image cubes) using mutual information is presented. In this paper, we derive a new algorithm based on mutual optimization between pairs of images and extend it to any finite number of images. We present results on the convergence and stability of the new algorithm, showing that the algorithm registers each image to a weighted average of its alignment with every other image. This method has application to other multiimage applications as well.

关键词： Mutual information Pixel Reflectivity Photothermal effects Hyperspectral imaging Wavelength measurement Laboratories Convergence Stability Image registration

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Neural network based algorithm for dynamic system optimization

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Asian Journal of Control 2001年第2期3卷 131-142页

作者： Romero, R.F. Kacprzyk, J. Gomide, F. USP-ICMC-SCE 13560–970-São Carlos-SP-Brasil. Roseli Aparecida Francelin Romero:received her Ph.D. degree in electrical engineering from the University of Campinas Brazil in 1993. From 1983 to 1988 she was a lecturer at the university Julio de Mesquita Filho (UNESP). Since abril of 1988 she is an Assistant Professor in the Department of Computer Science at the University of Sao Paulo. From 1996 to 1998 she was a Visiting Scientist Carnegie Mellon's Robot Learning Lab. Her research interests include artificial neural networks machine learning techniques and fuzzy logic. Dr. Romero is a member of the IEEE and of the Computer Brazilian Society (SBC). SRI-Polish Academy of Sciences 01–447-Warsaw-Poland-PL. UNICAMP-FEE-DCA 13081-Campinas-SP-Brasil.

A class of artificial neural networks with a two-layer feedback topology to solve nonlinear discrete dynamic optimization problems is developed. Generalized recurrent neuron models are introduced. A direct method to assign the weights of neural networks is presented. The method is based on Bellmann's Optimality Principle and on the interchange of information which occurs during the synaptic chemical processing among neurons. A comparative analysis of the computational requirements is made. The analysis shows advantages of this approach as compared to the standard dynamic programming algorithm. The technique has been applied to several important optimization problems, such as shortest path and control optimal problems.

关键词： Optimization

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A technology overview for a proposed Navy surface combatant DC Zonal Electric Distribution System

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NAVAL ENGINEERS JOURNAL 1999年第3期111卷 59-69页

作者： Ciezki, JG Ashton, RW John G. Ciezki:received his B.S. E. E. M.S.E.E. and Ph.D. from Purdue University in 1988 1990 and 1993 respectively. While working on his degrees he has done extensive research fm P. C. Krause and Associates in electric drive modeling and simulation. Following post-doctorate work at Purdue he joined the staff at the Naval Postgraduate School in 1994 as an Assistant Professor in the area of Power Systems. Robert W. Ashton:graduated from Virginia Polytechnic Institute with a B.S.E.E. in 1982. He worked for Unisys Corporation as a Component Engineer until returning to school in 1986. He received his M.S.E.E. in 1989 from Worcester Polytechnic Institute. He earned a Ph.D. in the area of power electronics while a fellow with Northeast Utilities in Connecticut. He currently holds the position of Associate Professor in the Department of Electrical and Computer Engineering at the Naval Postgraduate School in Monterey GI.

The U.S. Navy is currently investigating the implementation of a DC Zonal Electric Distribution System (DC ZEDS) as a component of an Integrated Power System (IPS) for the next generation of surface combatant. In replacing the current ac radial distribution system, significant gains can be realized in terms of survivability, weight, manning and cost. DC ZEDS is predicated on having starboard and port de busses feeding electrical zones delineated by watertight bulkhead compartments. The main bus de voltage is stepped down within the zone and then converted to three-phase ac and lower voltage de by additional power converters. Due to the large interconnection of tightly-regulated power converters in a stiffly-connected system, negative input impedance effects create the possibility of unwanted resonances. In this paper the authors describe the rationale for the de zonal system, characterize the key components, and highlight the stability issues.

关键词： direct current Fluconazole Navy dispensing system Electricity

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Intelligent Navigation on a Autonomous Vehicle

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IFAC Proceedings Volumes 1998年第3期31卷 247-252页

作者： Nelson Costa Manuel Crisóstomo Paulo Coimbra Aníbal T. de Almeida † Assistant at the Polytechnic Institute ofLeiria Morro do Lena Alto Vieiro - 2400 Leiria - PORTUGAL Tel. +351.44.820349 Fax. +351.39.7006247 Researcher at the Institute for Systems and Robotics - University of Coimbra Pinhal de Marrocos - 3030 Coimbra - PORTUGAL. Professor at the Electrical Engineering Department - University of Coimbra Tel. +351.39.7006286 Fax. +351.39.7006247

The work presented in this paper describes a low cost implementation of mobile vehicles, capable of moving in semi-structured environments, using an ultrasonic sensor based approach for navigation. The first robot developed knows a working map which contains permanent obstacles. The use of external sensing mechanisms allows the vehicle to interact with its environment in a flexible manner, in order to move autonomously in the test area, detecting unknown obstacles and avoid them. The movement is ensured by two stepping motors without feedback. A radio communication system was also developed allowing the transfer of live video pictures and data between the robot and a remote station. The user interface is performed by a portable computer placed onto the robot. In this way it is possible to endow the robot with new capacities, increasing its flexibility. In order to give a greater degree of intelligence, reliability, usability, and safety a second prototype is being developed. To ensure this a more efficient and robust navigation, composed by map acquisition, planning and steering algorithms together with the use of additional sensors such as electronic compass and infrared proximity sensors is being developed.

关键词： Vehicle sensors navigation path planning control

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Application of running quantities for control of an adaptive hybrid compensator

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EUROPEAN TRANSACTIONS ON electrical POWER 1996年第5期6卷 337-344页

作者： Czarnecki, LS Chen, G Staroszczyk, Z [?]Leszek S. Czarnecki (1939) received the M.Sc. and PbD. degrees in electrical engineering and Habil. Dr. degree from the Silesian Technical University Poland in 1%3 1%9and 1984 respectively where he was employed as an Assistant Professor. Since 1984 he worked for two years at the Power Engineering Section Division of Electrical Engineering National Research Council of Canada as a Visiting Research Officer. In 1987 he joined the Electrical Engineering Dept. at Zielona Gora Technical University. In 1989 he joined the Electrical and Computer Engineering Dept. of the Louisiana State University (LSU) Baton Rouge NSA as an Associate Professor. For developing a power theory of asymmetrical three-phase systems with non-sinusoidal waveforms he was elected to the grade of Fellow IEEE in 1996. His research interests include network analysis and synthesis power flow in non-sinusoidal systems compensation and powerquality improvement in non-sinusoidal unbalanced systems and power electronics. (Electrical and Computer Eng. Louisiana State University Baton Rouge/USA Louisiana 70803 T + 15 0413 88-52 41 Fax + 15 0413 88-52 00 Internet page: http://www.geoci tie coml Cape Canavera 4739)

A control algorithm for a hybrid compensator based on a concept of running complex RMS values of the fundamental harmonic of voltages and currents is presented in the paper. The hybrid compensator is composed of an adaptive passive balancing compensator controlled in the frequency-domain, and a current source, controlled in the time-domain. The algorithm used for the compensator control is rooted in a new approach to the power theory of electrical systems with quasi-periodic waveforms. it is based on the concept of running quantities and a forward extrapolation of the power properties of a time-variant load. Experimental results obtained using such an algorithm for controlling a laboratory prototype of the hybrid compensator are presented in the paper.

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