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International Conference on control and Automation (ICCA)

作者： Guanpu Chen Kun Cao Karl Henrik Johansson Yiguang Hong Division of Decision and Control Systems School of Electrical Engineering and Computer Science KTH Royal Institute of Technology Digital Futures Stockholm Sweden Department of Control Science and Engineering Research Institute for Intelligent Autonomous Systems Tongji University Shanghai China

ISBN: (数字)9798350354409

ISBN: (纸本)9798350354416

We study the computation of the global generalized Nash equilibrium (GNE) for a class of non-convex multi-player games, where players' actions are subject to both local and coupling constraints. Due to the non-convex payoff functions, we employ canonical duality to reformulate the setting as a complementary problem. Under given conditions, we reveal the relation between the stationary point and the global GNE. According to the convex-concave properties within the complementary function, we propose a continuous-time mirror descent to compute GNE by generating functions in the Bregman divergence and the damping-based design. Then, we devise several Lyapunov functions to prove that the trajectory along the dynamics is bounded and convergent.

关键词： Couplings Damping Automation Games Nash equilibrium Trajectory Mirrors

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A Survey on Application of Artificial Intelligence Techniques in Microgrid control

A Survey on Application of Artificial Intelligence Technique...

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Compatibility in Power Electronics (CPE)

作者： Javier Gutiérrez-Escalona Carlos Roncero-Clemente Oleksandr Husev Eva González-Romera María Isabel Milanés-Montero Tomislav Dragičević Electrical Electronic and Control Engineering Department University of Extremadura Badajoz Spain Department of Electrical Power Engineering and Mechatronics Tallin University of Technology Tallin Estonia Wind and Energy Systems Department Technical University of Denmark (DTU) Copenhaguen Denmark

ISBN: (数字)9798350318265

ISBN: (纸本)9798350318272

Concerns over the energy and environmental crisis are driving the strategic integration of distributed generators (DGs) in power systems, hastening the shift to sustainable energy. Microgrids (MGs) emerged as self-reliant, localized power solutions for DGs integration, enhancing grid performance and reliability by allowing grid-connected and islanded modes of operation. Moreover, the dc nature of many DGs and household devices, together with the progress in power electronics, have shifted research from conventional ac MGs towards dc and hybrid ac/dc MGs, which increase the complexity and the number of control scenarios. Therefore, the MG control environment require advanced data-driven algorithms to overcome the stochasticity and non-linear characteristics of MGs systems. In this context, artificial intelligence (AI) techniques demonstrate high potential for enhancing the control and operation in the dynamic MG environment. This paper reviews the most recent research effort regarding the application of AI-based technology in the hierarchical control structure for ac, dc and hybrid ac/dc MG architectures.

关键词： Surveys Reviews Heuristic algorithms Refining Microgrids Propulsion Power electronics

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Comparative Analysis of Pharmacokinetic-Pharmacodynamic Models for Propofol and Remifentanil Using Model Predictive control

Comparative Analysis of Pharmacokinetic-Pharmacodynamic Mode...

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European control Conference (ECC)

作者： A. R. Ynineb H. Farbakhsh G. Ben Othman Y. Wahlquist I. R. Birs E. Yumuk C. I. Muresan R. De Keyser D. Copot C. M. Ionescu M. Neckebroek Department of Electromechanics Systems and Metal Engineering Research Group on Dynamical Systems and Control Ghent University Gent Belgium Department of Automatic Control Lund University Lund Department of Automation Technical University of Cluj-Napoca Cluj-Napoca Romania Department of Control and Automation Engineering Istanbul Technical University Maslak Istanbul Turkey Department of Anesthesia Ghent University Hospital Ghent Belgium

ISBN: (数字)9783907144107

ISBN: (纸本)9798331540920

This study aims to compare the effectiveness of different Pharmacokinetic-Pharmacodynamic (PK-PD) models for administering Propofol and Remifentanil, two critical agents in anesthesia. Initially, different PK models were introduced: one for Propofol based on the Schnider model and another for Remifentanil using the Minto model. Alternatively, both drugs were modeled using the Eleveld models. The PK-PD models were integrated into a closed-loop control system using model predictive control (MPC) with disturbances to control the Bispectral index (BIS) and the Richmond Agitation Sedation Scale (RASS). The methodology involved simulating the anesthetic agents in the open-source patient simulator (2 inputs, 2 outputs) with 12 patient datasets in a controlled environment to simulate the patient response variability, allowing for a detailed analysis of the model's performance in maintaining optimal drug concentrations. The primary focus was on the system's ability to adapt to surgical disturbances, a key challenge in anesthesia management, and whether a different modeling of drugs can have an impact on their effects. The results indicated significant differences in the performance of the two models configurations. The Eleveld model for Propofol showed less usage of drugs to maintain the desired BIS value. Concluding that this comparative analysis offers a valuable reference for selecting appropriate modeling approaches in the development of advanced control strategies in anesthesia.

关键词： Drugs Analytical models Adaptation models Surgery Europe Predictive models Anesthesia

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Modeling, Analysis and Simulation of the Effect of Temperature on Magnetostrictive Actuators 9

Modeling, Analysis and Simulation of the Effect of Temperatu...

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9th International Conference on Fluid Power and Mechatronics, FPM 2023

作者： Zhang, Xinyuan Wang, Shaoping Niu, Yu Wu, Xiao Wang, Xingjian Gavrilov, Alex I. School of Automation Science and Electrical Engineering Beihang University Beijing100191 China Tianmushan Laboratory Hangzhou310023 China Ningbo Institute of Technology Beihang University Ningbo315800 China Research Institute of Aero-Engine Beihang University Beijing100191 China Bauman Moscow State Technical University Department of Automatic Control Systems Moscow105005 Russia

ISBN: (纸本)9798350304947

The increased demand for active control of engines has made the study of high-frequency response actuators increasingly important, and actuators based on magnetostrictive materials are promising for a wide range of applications. In this paper, the magnetic field distribution and various thermal losses including Joule heat loss, eddy current loss and hysteresis loss inside the giant magnetostrictive actuator (GMA) are analyzed, and the mathematical model of the current-driven GMA operation is derived, where the new J-A model considering the temperature effect is used to describe the hysteresis nonlinearity of the material. This paper simulates the actuator model under the action of multiple physical fields in COMSOL, focusing on the variation of the output displacement of the actuator when the thermal field and thermal expansion are integrated, and provides the theoretical basis for the design of the GMA control algorithm in the future. © 2023 IEEE.

关键词： Temperature

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Distributionally robust model predictive control for wind farms

arXiv

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arXiv 2023年

作者： Mark, Christoph Liu, Steven Institute of Control Systems Department of Electrical and Computer Engineering University of Kaiserslautern-Landau Kaiserslautern67663 Germany

In this paper, we develop a distributionally robust model predictive control framework for the control of wind farms with the goal of power tracking and mechanical stress reduction of the individual wind turbines. We introduce an ARMA model to predict the turbulent wind speed, where we merely assume that the residuals are sub-Gaussian noise with statistics contained in an moment-based ambiguity set. We employ a recently developed distributionally model predictive control scheme to ensure constraint satisfaction and recursive feasibility of the control algorithm. The effectiveness of the approach is demonstrated on a practical example of five wind turbines in a row. © 2023, CC BY-NC-ND.

关键词： Wind turbines

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Energy Quality Analysis of electrical Drive systems with Induction Machine

Energy Quality Analysis of Electrical Drive Systems with Ind...

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International Conference on engineering of Modern Electric systems (EMES)

作者： Helga Silaghi Viorica Spoiala Claudiu Costea Liliana Magdoiu Jan Gamec Alexandru Marius Silaghi Control Systems Engineering and Management Department University of Oradea Oradea Romania Faculty of Electrical Engineering and Informatics Technical University of Kosice Kosice Slovakia Electrical Engineering Department University of Oradea Oradea Romania

Inthis paper many improvements in dealing with energy quality issues that could arise in electrical drive systems using asynchronous machines are presented. A series active power filter is used in electrical drive systems with induction motors to reduce harmonic current and voltage. We also propose a variety of active power filters with hysteresis current value control. Lastly, some experimental results for an electrical drive system utilizing an induction motor and a PWM converter are provided. These findings are followed by a discussion of the system's energy quality issues.

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A Method for the Assessment of Power controllability of an Electrohydraulic Complex 20

A Method for the Assessment of Power Controllability of an E...

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20th IEEE International Conference on Modern electrical and Energy systems, MEES 2021

作者： Korenkova, Tetyana Rodkin, Dmytro Kovalchuk, Viktoriya Al-Mashakbeh, Atef Saleh Kremenchuk Mykhailo Ostrohradskyi National University Department of Systems of Automatic Control and Electric Driv Kremenchuk39600 Ukraine Tafila Technical University Department of Electrical Engineering Tafila66110 Jordan

ISBN: (纸本)9781665423663

It is demonstrated that the electrohydraulic complex is a complex system of interconnected electromechanical and hydraulic equipment with low controllability of parameters in non-stationary modes. The estimation of controllability in the electrohydraulic complex should be based on the analysis of energy conversion processes in all links of the power channel when changing control, disturbing and setting influences is established. A method for assessing power controllability based on a harmonic analysis of power signals in the energy channel of an electromechanical complex is developed. The coefficient of power controllability based on determining the power rms values in the system in various dynamic modes is proposed. A comparative analysis of experimental researches and mathematical modeling to assess the power controllability of an electrohydraulic complex during the development of nonlinear processes in the pipeline network is carried out. © 2021 IEEE.

关键词： Complex networks

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Distributed Low-Effort Load Balancing in the Presence of Time-Delays

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IFAC-PapersOnLine 2023年第2期56卷 5191-5196页

作者： Themistoklis Charalambous Stefano Panzieri Gabriele Oliva Department of Electrical and Computer Engineering School of Engineering University of Cyprus Nicosia Cyprus University Roma Tre via della Vasca Navale 79 00146 Rome Italy Unit of Automatic Control Department of Engineering Università Campus Bio-Medico di Roma Rome Italy

In this paper, we investigate the problem of distributed load balancing under network capacity constraints, where the participating agents cooperate with the aim of jointly minimizing both the workload disparity among them as well as the overall workload transfer. Classical approaches for asymptotic convergence to the global optimum in a distributed fashion typically assume timely exchange of information between neighboring agents of a given multi-agent system. This assumption is not necessarily valid in practical settings due to non-commensurate (heterogeneous) communication and processing delays that might affect transmissions at different times. More specifically, we consider what effect multiple heterogeneous time-varying delays, among the agents can have on the distributed load balancing problem. We show that the distributed load balancing problem under bounded heterogeneous time-varying delays is globally asymptotically stable, but the rate of convergence is affected. Bounds on the convergence rate are provided with respect to an upper bound on the delays. Simulation examples are provided to show the validity and performance of our theoretical results.

关键词： Distributed load balancing time-delays distributed algorithms minimum effort

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Combining Transfer Learning and Genetic Algorithms for Real-Time Gesture Recognition using EMG Signals

Combining Transfer Learning and Genetic Algorithms for Real-...

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Mechatronics and Robotics engineering (ICMRE), International Conference on

作者： Genci Capi Kazuma Iizawa Shin-Ichiro Kaneko Department of Mechanical Engineering Hosei University Tokyo Japan Graduate School of Science and Engineering Hosei University Tokyo Japan Department of Electrical and Control Systems Engineering National Institute of Technology Toyama College Toyama Japan

ISBN: (数字)9798350394276

ISBN: (纸本)9798350394283

This paper proposes a hybrid method using Genetic Algorithm and Transfer Learning in Deep Neural Networks for gesture classification using surface EMG (sEMG) signals. The goal is to develop efficient Convolutional Neural Networks (CNN) that can be implemented in real-time situations to recognize gestures with a small number of EMG sensors. By “efficient” we mean good classification accuracy, short data acquisition time, and short CNN training time. The dataset to verify the performance of the proposed algorithm is created in our laboratory. We compare the performance of CNNs trained (a) from scratch, (b) using transfer learning, and (c) using transfer learning with GA-optimized parameters. The performance of the proposed hybrid method shows a good performance.

关键词： Training Transfer learning Training data Real-time systems Electromyography Classification algorithms Sensors

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Stereographic Projection of Probabilistic Frequency-Domain Uncertainty

Stereographic Projection of Probabilistic Frequency-Domain U...

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IEEE Conference on Decision and control

作者： Anton Nyström Venkatraman Renganathan Michael Cantoni Faculty of Engineering Lund University Sweden Cranfield University UK Department of Automatic Control - LTH Lund University Sweden ELLIIT Strategic Research Area Lund University Department of Electrical and Electronic Engineering The University of Melbourne Australia

ISBN: (数字)9798350316339

ISBN: (纸本)9798350316346

This paper investigates the stereographic projection of points along the Nyquist plots of single input single output (SISO) linear time invariant (LTI) systems subject to probabilistic uncertainty. At each frequency, there corresponds a complex-valued random variable with given probability distribution in the complex plane. The chordal distance between the stereographic projections of this complex value and the corresponding value for a nominal model, as per the well-known ν-Gap metric of Vinnicombe, is also a random quantity. The main result provides the cumulative density function (CDF) of the chordal distance at a given frequency. Such a stochastic distance framework opens up a fresh and a fertile research direction on probabilistic robust control theory.

关键词： Robust control Measurement Linear systems Uncertainty SISO Frequency-domain analysis Stochastic processes Probabilistic logic Probability distribution Random variables

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