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A Robust PID Autotuning Method for Steam/Water Loop in Large Scale Ships

IFAC-PapersOnLine 2018年第4期51卷 462-467页

作者： Zhao, Shiquan Ionescu, Clara M. De Keyser, Robin Liu, Sheng Ghent University Faculty of Engineering and Architecture Research group on Dynamical Systems Control Technologiepark 914 ZwijnaardeB9052 Belgium Harbin Engineering University College of Automation China

During the voyage of the ship, disturbances from the sea dynamics are frequently changing, and the ship's operation mode is also varied. Hence, it is necessary to have a good controller for steam/water loop, as the control task is becoming more challenging in large scale ships. In this paper, a robust proportional-integral-derivative (PID) autotuning method is presented and applied to the steam/water loop based on single sine tests for every sub-loop in the steam/water loop. The controller is obtained during which the user-defined robustness margins are guaranteed. Its performance is compared against other PID autotuners, and results indicate its superiority. © 2018

关键词： Proportional control systems Robustness (control systems) Ships Steam Steam power plants Two term control systems Autotuner Modulus margins Multi output Multiinput Steam/water

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Development and modeling of some elements of the two-wheeled mobile robot system

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Journal of Physics: Conference Series 2021年第1期2134卷

作者： Alexander O Karpov Alexey O Karpov M Yu Vasilyeva И E S Belashova Process Dynamics and Control Department Kazan National Research Technical University named after A.N. Tupolev - KAI Kazan Russia Department of quality management Kazan (Volga Region) Federal University Kazan Russia Department of Automation and Process Control Systems Kazan National Research Technological University Kazan Russia Department of Computer Systems Kazan National Research Technical University named after A.N. Tupolev - KAI Kazan Russia

The article deals with the navigation system elements development process. The movement and positioning of a two-wheeled mobile robot with a high level of accuracy are realized through this system. Also, the algorithms mechanisms based on the construction of the optimal path for the autonomous device movement and based on a map building in an unknown area and avoiding obstacles are described. Using mathematical models, computer modeling of the device executive system is carried out using the engineering program MatLab.

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A Multi-Echelon Supply Chain Model for Sustainable Electricity Generation from Municipal Solid Waste

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IFAC-PapersOnLine 2019年第1期52卷 610-615页

作者： M. Mohammadi S-L. Jämsä-Jounela I. Harjunkoski Research Group of Process Control and Automation Department of Chemical and Metallurgical Engineering School of Chemical Engineering Aalto University FI-00076 Espoo Finland ABB Corporate Research Center Germany Wallstadter Str. 59 68526 Ladenburg Germany

This paper addresses a mixed integer linear programming model for the optimal utilization of municipal solid waste in a multi-echelon supply chain network. The model focuses on tactical and operational level decisions including the supply, production, and distribution. It aims to maximize the annual net profit by optimizing the choice of waste-to-energy technologies through observing the related capacity and environmental constraints and market demands. The proposed sustainable waste management model not only reduces the burden on the environment, but also optimally distributes the solid waste through the system and converts it into electricity, thus contributing towards energy supply. Sensitivity analyses are conducted to investigate the effects of changes in waste separation rate, energy conversion rate, and energy efficiencies on the system performance and on the environment. The model is solved using GAMS/CPLEX.

关键词： municipal solid waste waste management waste-to-energy sustainability supply chain management mixed integer linear programming

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Detection and evaluation of events in EEG dynamics in post-surgery patients with physiological-based mathematical models

Detection and evaluation of events in EEG dynamics in post-s...

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IEEE International Conference on systems, Man and Cybernetics

作者： Eva Dulf Maria Ghita Clara M. Ionescu Department of Automation Technical University of Cluj-Napoca Cluj Napoca Romania Dynamical Systems and Control research group Ghent University Ghent Belgium

As part of the new directions for vision and mission of Europe, patient well-being and healthcare become core features of a modern and prosperous society. That is, healthcare costs are optimized towards patient benefit and sideways effects such as cost-related reduction in medication, in frequency of post-operatory interventions, in recovery times and in comorbidity risk. In this paper, we address the incidence of events related to stroke, epileptic seizures and tools to possibly predict their presence from Electroencephalography (EEG) signal acquired in post-surgery patients. Wavelet analysis and spectrogram indicate graphically changes in the energy content of the EEG signal. Physiologically based neuronal dynamic pathway is used to derive fractional order impedance models. Nonlinear least squares identification technique is used to identify model parameters, with results suggesting parameter redundancy. There is a significant difference in model parameter values between EEG signal with/-out events.

关键词： Aneurysm Europe Electroencephalography Time-frequency analysis Blood Spectrogram Sociology

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Robust Fractional Order PI control for Cardiac Output Stabilisation

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IFAC-PapersOnLine 2019年第1期52卷 994-999页

作者： Isabela Birs Dana Copot Cristina I. Muresan Robin De Keyser Clara M. Ionescu DySC research group on Dynamical Systems and Control Ghent University Ghent Belgium Tech Lane Science Park 125 Department of Automation Technical University of Cluj-Napoca Cluj-Napoca Romania

Drug regulatory paradigms are dependent on the hemodynamic system as it serves to distribute and clear the drug in/from the body. While focusing on the objective of the drug paradigm at hand, it is important to maintain stable hemodynamic variables. In this work, a biomedical application requiring robust control properties has been used to illustrate the potential of an autotuning method, referred to as the fractional order robust autotuner. The method is an extension of a previously presented autotuning principle and produces controllers which are robust to system gain variations. The feature of automatic tuning of controller parameters can be of great use for data-driven adaptation during intra-patient variability conditions. Fractional order PI/PD controllers are generalizations of the well-known PI/PD controllers that exhibit an extra parameter usually used to enhance the robustness of the closed loop system.

关键词： cardiac output anesthesia intra-patient variability fractional order controllers autotuning method robustness iso-damping stability

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Benchmark Challenge: a robust fractional order control autotuner for the Refrigeration systems based on Vapor Compression

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IFAC-PapersOnLine 2018年第4期51卷 31-36页

作者： Muresan C.I. Keyser R.D. Birs I. Copot D. Ionescu C. Department of Automation Technical University of Cluj-Napoca Cluj-Napoca Romania DySC research group on Dynamical Systems and Control Ghent University Ghent Belgium

This paper proposes fractional order autotuner controller for the benchmark refrigeration system. The method is an extension of a previously presented autotuning principle and produces a robust fractional order PI controller to gain variations. Fractional order PI controllers are generalizations of the integer order PI controllers, which have a supplementary parameter that is usually used to enhance the robustness of the closed loop system. The method is not restricted to robustness to gain variations and can be adapted to obtain robust fractional order controllers to time delay or time constant variations, for example. The autotuning method presented in this paper has several advantages such as the need for a single sine test to be applied to the process to extract the necessary information and the elimination of complex nonlinear equations in the tuning procedure for fractional order controllers. The results obtained on the benchmark system indicate the method has high potential for real-life applications. © 2018

关键词： autotuning method benchmark challenge fractional order controllers robustness

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An Early Stage researcher's Primer on systems Medicine Terminology

Network and Systems Medicine

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Network and systems Medicine 2021年第1期4卷 2-50页

作者： Zanin, Massimiliano Aitya, Nadim A.A. Basilio, José Baumbach, Jan Benis, Arriel Behera, Chandan K. Bucholc, Magda Castiglione, Filippo Chouvarda, Ioanna Comte, Blandine Dao, Tien-Tuan Ding, Xuemei Pujos-Guillot, Estelle Filipovic, Nenad Finn, David P. Glass, David H. Harel, Nissim Iesmantas, Tomas Ivanoska, Ilinka Joshi, Alok Boudjeltia, Karim Zouaoui Kaoui, Badr Kaur, Daman Maguire, Liam P. McClean, Paula L. McCombe, Niamh De Miranda, João Luís Moisescu, Mihnea Alexandru Pappalardo, Francesco Polster, Annikka Prasad, Girijesh Rozman, Damjana Sacala, Ioan Sanchez-Bornot, Jose M. Schmid, Johannes A. Sharp, Trevor Solé-Casals, Jordi Spiwok, Vojtěch Spyrou, George M. Stalidzans, Egils Stres, Blaa Sustersic, Tijana Symeonidis, Ioannis Tieri, Paolo Todd, Stephen Van Steen, Kristel Veneva, Milena Wang, Da-Hui Wang, Haiying Wang, Hui Watterson, Steven Wong-Lin, Kongfatt Yang, Su Zou, Xin Schmidt, Harald H.H.W. Centro de Tecnología Biomédica Universidad Politécnica de Madrid Madrid Spain Intelligent Systems Research Centre School of Computing Engineering and Intelligent Systems Ulster University Ulster United Kingdom Center for Physiology and Pharmacology Institute of Vascular Biology and Thrombosis Research Medical University of Vienna Vienna Austria TUM School of Life Sciences Weihenstephan Technical University of Munich Freising Germany Holon Israel CNR National Research Council IAC Institute for Applied Computing Rome Italy Lab of Computing Medical Informatics and Biomedical Imaging Technologies School of Medicine Aristotle University of Thessaloniki Thessaloniki Greece Université Clermont Auvergne INRAE UNH Plateforme d'Exploration du Métabolisme MetaboHUB Clermont Clermont-Ferrand France Université de Technologie de Compiègne Compiègne France Labex MS2T Control of Technological Systems-of-Systems CNRS and Université de Technologie de Compiègne Compiègne France Faculty of Engineering University of Kragujevac Kragujevac Serbia Kragujevac Serbia Steinbeis Advanced Risk Technologies Institute Doo Kragujevac Kragujevac Serbia Pharmacology and Therapeutics School of Medicine Galway Neuroscience Centre National University of Ireland Galway Ireland School of Computing Ulster University Ulster United Kingdom Holon Israel Department of Mathematics and Natural Sciences Kaunas University of Technology Kaunas Lithuania Faculty of Computer Science and Engineering Ss. Cyril and Methodius University Skopje Macedonia Medicine Faculty Université Libre de Bruxelles CHU de Charleroi Charleroi Belgium Northern Ireland Centre for Stratified Medicine Biomedical Sciences Research Institute Ulster University Ulster United Kingdom Escola Superior de Tecnologia e Gestão Instituto Politécnico de Portalegre Portalegre Portugal Instituto Superior Técnico Universidade de Lisboa Lisboa Portugal Faculty of Automatic Control and Computers University Politehnica of B

Background: systems Medicine is a novel approach to medicine, that is, an interdisciplinary field that considers the human body as a system, composed of multiple parts and of complex relationships at multiple levels, and further integrated into an environment. Exploring systems Medicine implies understanding and combining concepts coming from diametral different fields, including medicine, biology, statistics, modeling and simulation, and data science. Such heterogeneity leads to semantic issues, which may slow down implementation and fruitful interaction between these highly diverse fields. Methods: In this review, we collect and explain more than100 terms related to systems Medicine. These include both modeling and data science terms and basic systems medicine terms, along with some synthetic definitions, examples of applications, and lists of relevant references. Results: This glossary aims at being a first aid kit for the systems Medicine researcher facing an unfamiliar term, where he/she can get a first understanding of them, and, more importantly, examples and references for digging into the topic. © Massimiliano Zanin et al., 2021;Published by Mary Ann Liebert, Inc. 2021.

关键词： Semantics

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Design of Experiments for Battery Aging Estimation

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IFAC-PapersOnLine 2018年第28期51卷 386-391页

作者： Pózna, Anna I. Hangos, Katalin M. Magyar, Attila Department of Electrical Engineering and Information Systems Faculty of Information Technology University of Pannonia Egyetem str. 10. VeszprémH-8200 Hungary Process Control Research Group HAS Research Institute for Computer Science and Control Kende str. 13-17. BudapestH-1111 Hungary

Li-ion batteries are widely used in EV applications and are imposed to several aging effects during their lifetime. Since battery health cannot be measured directly, information about its health can be obtained by iteratively re-estimating the parameters of the model describing its dynamical behavior. The optimal design of experiments is investigated in this paper. The proposed method applies families of input signals (PRBS current and constant current-constant voltage (CC-CV) signals) to the batteries to estimate the key aging factors. Simulation experiments have been used to analyze the statistical properties of the estimators as a function of the design parameters of the input signal families. The results show that the CC-CV charging-discharging cycle has the possibility to gain the most information out of the battery model parameter estimation. © 2018

关键词： Parameter estimation Battery management systems Design of experiments Electric excitation Iterative methods Lithium ion batteries Planning Electric Experiment design Input Model formulation Storage operations

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Approximation Methods for FO-IMC controllers for Time Delay systems

Approximation Methods for FO-IMC Controllers for Time Delay ...

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作者： Cristina I.Muresan Isabela R.Birs Ovidiu Prodan Ioan Nascu Robin De Keyser Department of Automation Technical University of Cluj-Napoca DySC research group on Dynamical Systems and Control Ghent University EDT group Flanders Make consortium Department of Civil Engineering Technical University of Cluj-Napoca

Fractional Order Internal Model control(FO-IMC) is among the newest trends in extending fractional calculus to the integer order control. Approximation of the FO-IMC is one of the key problems. Apart from this, when dealing with time delay systems, the time delay needs also to be approximated. All these approximations can alter the closed loop performance of the controller. In this paper, FO-IMC controllers will be tested in terms of the approximation accuracy. The case study is a first order system with time delay. Several scenarios will be considered, aiming for a conclusion regarding the choice of the approximation method as a function of the process characteristics, closed loop performance and FO-IMC fractional order. To approximate the time delay, two extensively used techniques will be considered, such as the series and Pade approximations. These will be compared to a novel approximation technique. An analysis of the test cases presented show that the series approximation proves more suitable in a single scenario, whereas the novel approximation method produces better results for the rest of the test cases.

关键词： Approximation Methods for FO-IMC controllers for Time Delay systems IMC

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Design and Practical Implementation of a Fractional Order Proportional Integral controller (FOPI) for a Poorly Damped Fractional Order process with Time Delay

Design and Practical Implementation of a Fractional Order Pr...

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International Conference on control, Mechatronics and automation (ICCMA)

作者： Isabela Birs Cristina Muresan Dana Copot Ioan Nascu Clara Ionescu Automation Department Technical University of Cluj-Napoca Romania Dynamical Systems and Control Research Group EEDT Core Lab on Decision and Control Flanders Make Consortium Ghent University Ghent Belgium Automation Department Technical University of Cluj-Napoca Cluj-Napoca Romania

One of the most popular tuning procedures for the development of fractional order controllers is by imposing frequency domain constraints such as gain crossover frequency, phase margin and iso-damping properties. The present study extends the frequency domain tuning methodology to a gen-eralized range of fractional order processes based on second order plus time delay (SOPDT) models. A fractional order PI controller is tuned for a real process that exhibits poorly damped dynamics characterized in terms of a fractional order transfer function with time delay. The obtained controller is validated on the experimental platform by analyzing staircase reference tracking, input disturbance rejection and robustness to process uncertainties. The paper focuses around the tuning methodology as well as the fractional order modeling of the process' dynamics.

关键词： control system synthesis damping delay systems frequency-domain analysis PI control robust control three-term control transfer functions uncertain systems

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