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2010 49th IEEE Conference on Decision and control

作者： Alejandra Ferreira Leonid Fridman Elisabetta Punta Giorgio Bartolini Universidad Nacional Autonoma de Mexico (UNAM) Department of Control Engineering Faculty. C.P. 04510. Mexico D.F. Institute of Intelligent Systems for Automation National Research Council of Italy ISSIA-CNR Genoa Italy

ISBN: (纸本)9781424477456

This paper tackles the regulation problem of linear time invariant systems with unmatched perturbations. The proposed methodology exploits a high order sliding mode observer, which guarantees theoretically exact state and perturbation estimation. In this work is introduced a controller with a compensation strategy based on the identified perturbation values. A nested backward sliding surface design is proposed, which allows to compensate the unmatched uncertainties and to stabilize some of the non-actuated state components, while all the remaining states are maintained bounded. The overall stabilization error is estimated in terms of the sampling time and actuator time constant values. The feasibility of the technique is showed in a rotary inverted pendulum simulation example.

关键词： Time invariant systems INCOMPATIBLE compensated perturbation sampling time

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Robust control design of multiple resonant controllers for sinusoidal tracking and harmonic rejection in uninterruptible power supplies

Robust control design of multiple resonant controllers for s...

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IEEE International Symposium on Industrial Electronics

作者： Bonan, Guilherme Mano, Otávio Pereira, Luis Fernando Alves Coutinho, Daniel Ferreira Department of Research and Development CP Eletrônica S.A. Rua da Várzea 379 91040-600 Porto Alegre-RS Brazil Department of Electrical Engineering Universidade Federal do Rio Grande do Sul - UFRGS Av. Osvaldo Aranha 103 90035-190 Porto Alegre-RS Brazil Group of Automation and Control Systems Pontifícia Universidade Católica do Rio Grande do Sul - PUCRS Av. Ipiranga 6681 90619-900 Porto Alegre-RS Brazil

ISBN: (纸本)9781424463916

This paper presents a robust control strategy for tracking sinusoidal reference signals with zero steady state error and harmonic compensation in Uninterruptible Power Supplies - UPS. Multiple resonant controllers are derived for DC-AC inverters when supplying energy to (uncertain) nonlinear loads to obtain a nice tradeoff between transient response and disturbance rejection regardless possible load variations. The controller parameters are determined by means of a convex optimization problem subject to a set of linear matrix inequalities (LMIs). Real time experiments demonstrate the potentials of the proposed approach for controlling UPS systems. © 2010 IEEE.

关键词： controllers

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A class of data-driven based controller design and its parameters tuning method

A class of data-driven based controller design and its param...

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作者： Wang, Weihong Hou, Zhongsheng Huo, Haibo Jin, Shangtai School of Mechanical Engineering and Automation Beihang University Beijing 100191 China Advanced Control Systems Lab. School of Electronics and Information Engineering Beijing Jiaotong University Beijing 100044 China Department of Electrical Engineering Shanghai Ocean University Shanghai 201306 China

ISBN: (纸本)9787894631046

Data-based control technique becomes a research hot point because of the controller design need the system I/O data only. A class of data-based controller design and its parameters tuning method (IFT-MFAC) was proposed for a class of discrete-time nonlinear system in this paper. Three controller structures are deduced according to non-parameters time-varying dynamic linearization theorem, then the controller parameters are tuning by IFT technique. The rationality of the 3 structures of the controller is assured by the theorem, whereas, the controller structure is designed blindly by IFT. Obviously, the new method settles down this problem more properly. Finally, the three data-based methods IFT-MFAC, MFAC and IFT were compared through 3examples. And the simulation results show the validity of the IFT-MFAC.

关键词： controllers

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research on performance robustness of PID control for TITO process with time delays

Research on performance robustness of PID control for TITO p...

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The 8th World Congress on Intelligent control and automation(第八届智能控制与自动化世界大会 WCICA 2010)

作者： Zengrong Hu Jing Wang Donghai Li Weiqi Li Metallurgical Engineering Research institute　University of Science & Technology Beijing China　Scho Metallurgical Engineering Research institute University of Science & Technology Beijing China State Key Lab of Power Systems Dept of Thermal　Engineering Tsinghua University Beijing China Department of automatic control，School of Automation Beijing Institute of Technology，Beijing ，China

PID controller has simple structure and easy applicability with strong performance robustness. Decentralized PID controller and decoupling PID controller are widely adopted in the control of two-input-two-output (TITO) processes. Firstly, a simple decoupling controller matrix and a desired dynamic decoupling controller matrix are designed according to the idea of coupling matrix. And then three schemes of controller including decentralized PID controller, simple PID decoupling controller and desired dynamic PID decoupling controller are provided based on the excellent characteristic of DDE. Lastly, the Monte-Carlo stochastic experiment is introduced to analyze performance robustness of the controllers. The simulation experiments illustrate that the simple decoupling control scheme has the ability of complete decoupling and better performance robustness.

关键词： Robustness Mathematical model Distributed control Equations Delay effects Process control

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Preface EIS -10

Proceedings of the International Symposium on Evolving Intel...

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Proceedings of the International Symposium on Evolving Intelligent systems - A Symposium at the AISB 2010 Convention 2010年

作者： Angelov, Plamen Filev, Dimitar Kasabov, Nikola Communication Systems Dept Intelligent Systems Research Lab Lancaster University Lancaster LA1 4WA United Kingdom Department of Intelligent Control and Info Systems Ford Research and Advanced Eng 2101 Village Road MD #1437 Dearborn MI 48121 United States School of Computing and Information Sciences KEDRI Auckland University of Technology 581 Great South Rd 1020 Auckland New Zealand

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Tension Soft Sensor of Continuous Annealing Lines Using Cascade Frequency Domain Observer with Combined PCA and Neural Networks Error Compensation

Tension Soft Sensor of Continuous Annealing Lines Using Casc...

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2010 49th IEEE Conference on Decision and control

作者： Qiang Liu Tianyou Chai Hong Wang S. Joe Qin Key Laboratory of Integrated Automation of Process Industry (Northeastern University) Ministry of Education and Research Center of Automation Northeastern University Shenyang China Control Systems Centre the University of Manchester Manchester M60 1QD the United Kingdom Mork Family Department of Chemical Engineering and Materials Science the Ming Hsieh Department of Electrical Engineering University of Southern California Los Angeles CA 90089-1211 USA

ISBN: (纸本)9781424477456

In continuous annealing processes, strip tension is an important factor which indicates whether the annealing line works steadily. The strip tension detection in the continuous annealing process, therefore, is essential for the reliable and stable operation of the units, and will help to improve the quality of strip products. However, in real annealing processes, only a limited number of strip tensions can be measured. Since installing tension sensors everywhere will be unrealistic and expensive, in this paper a cascade reduced-order observer method with principal component analysis (PCA) and neural networks (NN) compensation is proposed to estimate the unknown tensions between each two neighboring rolls so as to monitor the tension profile for the whole line. When the main observer model is established, the influences of strip inertia and roll eccentricity on tensions are taken into account for better estimation. Moreover, when the error compensation is designed, PCA scores are used as the inputs to the NN. The application results show the effectiveness of the proposed method, with the estimated tensions used for the analysis of the strip-breaks fault.

关键词： Error compensation Continuous annealing annealing tension strip tension stability operations Neural network cascades

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Delay-dependent conditions for monotonic convergence of uncertain ILC systems: An LMI approach

Delay-dependent conditions for monotonic convergence of unce...

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IEEE Conference on Decision and control

作者： Deyuan Meng Yingmin Jia Junping Du Fashan Yu Seventh Research Division the Department of Systems and Control Beihang University Beijing China Beijing Key Laboratory of Intelligent Telecommunications Software and Multimedia School of Computer Science and Technology Beijing University of Posts and Telecommunications Beijing China School of Electrical Engineering and Automation Henan Polytechnic University Jiaozuo Henan China

ISBN: (纸本)9781424477456

This paper deals with the iterative learning control (ILC) problem for uncertain time-delay systems (TDS). In order to ensure monotonic convergence of the ILC process, a sufficient condition is developed using an H ∞ -based framework. It shows that under this framework, the convergence condition is enabled to be delay-dependent and have a formulation in terms of linear matrix inequalities (LMIs). Moreover, formulas for the updating law design can be derived by directly solving LMIs. A numerical example is provided to verify that the delay-dependent condition in LMI forms is effective in producing monotonically convergent ILC algorithms.

关键词： Convergence Symmetric matrices Robustness Delay Uncertainty Performance analysis Linear matrix inequalities

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Neuro-physiological features related to subjective evaluation and performance assessment during sustained mental calculation and rest break

Transactions of Japanese Society for Medical and Biological ...

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Transactions of Japanese Society for Medical and Biological Engineering 2009年第2期47卷 148-153页

作者： Chen, Lanlan Sugi, Takenao Shirakawa, Shuichiro Zou, Junzhong Nakamura, Masatoshi Department of Automation East China University of Science and Technology China Department of Advanced Systems Control Engineering Saga University Japan National Center of Neurology and Psychiatry Japan

Neuro-physiological measures especially EEG analysis is helpful to understand underlying mechanisms of mental fatigue during sustained mental work. In this research, a work-rest schedule containing mental calculation and music rest break was designed. Neuro-physiological measures were related with subjective evaluation and performance assessment. Individual EEG characteristics and common EEG features were analyzed. It is found that theta and alpha rhythm are highly related with concentration, alertness and drowsy during mental work. Faster EEG frequency bands reflect higher alertness level after taking a rest. Subjective evaluation and performance assessment support EEG findings. The results from subjective evidence and objective evidence indicate that a short break (e.g. 15 min per 2 hrs) in sustained mental work can counteract the accumulation of mental fatigue and improve work efficiency.

关键词： Physiological models

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Model Matching control for MIMO systems with Multiple Time Delays and Its Applications in Adaptive Scheme

Model Matching Control for MIMO Systems with Multiple Time D...

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American control Conference

作者： Haixia Su Yingmin Jia Junping Du Fashan Yu Seventh Research Division and the Department of Systems and Control Beihang University (BUAA) Beijing 100191 China Beijing Key Laboratory of Intelligent Telecommunications Software and Multimedia School of Computer Science and Technology Beijing University of Posts and Telecommunications Beijing 100876 China School of Electrical Engineering and Automation Henan Polytechnic University Jiaozuo 454000 Henan China

ISBN: (纸本)9781424474264

This paper considers the model matching problem of multiple-input multiple-output (MIMO) systems with multiple time delays. The reference model is chosen to be the diagonal delay transfer function matrix. A controller is designed for nominal systems. Furthermore, an adaptive control scheme is proposed for uncertain systems with parameter variation. The resulting scheme can guarantee the global stability of the closed-loop systems and the convergence of the tracking errors. A simulation example is included to illustrate the proposed scheme.

关键词： control system synthesis MIMO Delay effects Programmable control Adaptive control Transfer functions control systems Uncertain systems Stability Convergence

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Non-Fragile control for Trajectory Tracking of Nonholonomic Mobile Robots

Non-Fragile Control for Trajectory Tracking of Nonholonomic ...

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American control Conference

作者： Na Ni Yingmin Jia Junping Du Fashan Yu Seventh Research Division and the Department of Systems and Control Beihang University (BUAA) Beijing 100191 China Beijing Key Laboratory of Intelligent Telecommunications Software and Multimedia School of Computer Science and Technology Beijing University of Posts and Telecommunications Beijing 100876 China School of Electrical Engineering and Automation Henan Polytechnic University Jiaozuo 454000 Henan China

ISBN: (纸本)9781424474264

This paper is devoted to the non-fragile controller design for the trajectory tracking of nonholonomic mobile robots. Using non-linear state feedback and proper coordinate transformation, the model of nonholonomic mobile robots is exactly linearized. Based on which, the non-fragile controller is designed by employing the linear matrix inequality (LMI) approach. Simulation examples are included to illustrate the effectiveness of the proposed controller.

关键词： Trajectory Mobile robots control systems Tracking Robot kinematics Orbital robotics State feedback Error correction Sliding mode control Laboratories

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