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arXiv 2025年

作者： Delimpaltadakis, Giannis Mestres, Pol Cortés, Jorge Heemels, W.P.M.H. Control Systems Technology group Eindhoven University of Technology Netherlands Department of Mechanical and Aerospace Engineering University of California San Diego United States

Recently, there has been a surge of research on a class of methods called feedback optimization. These are methods to steer the state of a control system to an equilibrium that arises as the solution of an optimization problem. Despite the growing literature on the topic, the important problem of enforcing state constraints at all times remains unaddressed. In this work, we present the first feedback-optimization method that enforces state constraints. The method combines a class of dynamics called safe gradient flows with high-order control barrier functions. We provide a number of results on our proposed controller, including well-posedness guarantees, anytime constraint-satisfaction guarantees, equivalence between the closed-loop’s equilibria and the optimization problem’s critical points, and local asymptotic stability of optima. Copyright © 2025, The Authors. All rights reserved.

关键词： Feedback control

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State-Space controller as a FOTD Based Generalization of ADRC 21

State-Space Controller as a FOTD Based Generalization of ADR...

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21st IEEE International Carpathian control Conference, ICCC 2020

作者： Huba, Mikulas Vrancic, Damir Slovak University of Technology Fac. of Electrical Engineering and Information Technology Bratislava Slovakia Jožef Stefan Institute Department of Systems and Control Ljubljana Slovenia

ISBN: (纸本)9781728119519

This paper extends ideas of some introductory papers interpreting advanced disturbance rejection control (ADRC) as a generalization of state-space controller design focused on using simplified integral plant models. Advantages achieved by this approach are evaluated by comparing robust constrained controllers based on extended state observer (ESO) design using integrative and first order time delayed (IPDT and FOTD) plant models. Thereby, this comparison may help in discovering new interesting properties of both considered types of resulting controllers. Theoretical analyses is illustrated by real time control of a thermal process. © 2020 IEEE.

关键词： Disturbance rejection

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Modem mechatronics and robotics education program: Border cooperation between estonia and Russia 11

Modem mechatronics and robotics education program: Border co...

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11th IEEE Global engineering Education Conference, EDUCON 2020

作者： Rassolkin, Anton Vaimann, Toomas Kudelina, Karolina Demidova, Galina L. Lukichev, Dmitry V. Perepelkina, Svetlana Tallinn University of Technology Department of Electrical Power Engineering and Mechatronics Tallinn Estonia Itmo University Faculty of Control Systems and Robotics St. Petersburg Russia

ISBN: (纸本)9781728109305

The paper describes the interaction between Tallinn University of Technology (TalTech, Tallinn, Estonia) and ITMO University (St. Petersburg, Russia) based on recently signed agreement. The purpose of the agreement is to record the intention of TalTech and ITMO University to cooperate on implementing a double master's degree program, which involves confirmation of the master's educational level absorption and the award of master's degree and obtention of two diplomas, and to outline the organizational form, principles and terms of the implementation. The double degree Program is a two-year Master's program of 120 ECTS credit points. Its structure and content meets the requirements that both TalTech and ITMO University have established for their master's programs, in accordance with the government standards. Development and approval of the double degree Program is held by the Parties in accordance with the procedures established by them. This paper describes the procedure of implementation of a double-degree master program in mechatronics engineering. © 2020 IEEE.

关键词： engineering education

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Main Faults and Diagnostic Possibilities of BLDC Motors 27

Main Faults and Diagnostic Possibilities of BLDC Motors

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27th International Workshop on Electric Drives: MPEI department of Electric Drives 90th Anniversary, IWED 2020

作者： Kudelina, Karolina Asad, Bilal Vaimann, Toomas Rassolkin, Anton Kallaste, Ants Lukichev, Dmitri V. Tallinn University of Technology Department of Electrical Power Engineering and Mechatronics Tallinn Estonia ITMO University Faculty of Control Systems and Robotics St. Petersburg Russia

ISBN: (纸本)9781728141589

This paper presents the main faults of brushless DC motors and their diagnostic possibilities. Due to the popularity gain of such devices in the past decade, the maintenance and diagnostic of such machines is getting more important. As the machines are used in various applications, they are often critical parts of devices. Due to this, the unexpected failures of such machines are undesired and are to be avoided. The main faults of the machines are listed, some possibilities of their monitoring and diagnostics have been addressed. The necessity of further study has been pointed out. © 2020 IEEE.

关键词： Brushless DC motors

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Epidemic models for plants infection under mixed effects of temperature and wetness 1

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2nd International Conference on Advanced Intelligent systems for Sustainable Development, AI2SD 2019

作者： Soufi, Adil Rami, Mustapha Ait El Jarroudi, Mustapha El Jarroudi, Moussa Department of Mathematics LMA University of Abdelmalek Essaadi FST Tangier Tétouan Morocco Laboratory Systems Control & Decision ENSIT Engineering School Tangier90000 Morocco Department of Environmental Sciences and Management University of Liège Liège Belgium

ISBN: (数字)9783030366643

ISBN: (纸本)9783030366636

This paper deals with modeling and fitting for epedimic models and their applications to the field of plants disease. For this purpose, two models are proposed that are expressed as a blend of two functions which reflect the effect of the temperature and the wetness. In addition, we provide an original method to fit the proposed models by employing simple techniques that can constitute an easy-to-use tool for simulation, prediction and/or control. Moreover, the method accuracy and efficiency are evaluated for some reported works in the literature. Computational results are provided to show the validity and effectiveness of the proposed epidemic models for some plant infections. © Springer Nature Switzerland AG 2020.

关键词： Nonlinear programming

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Navigating a mobile robot using switching distributed sensor networks

arXiv

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arXiv 2021年

作者： He, Xingkang Hashemi, Ehsan Johansson, Karl H. Division of Decision and Control Systems School of Electrical Engineering and Computer Science KTH Royal Institute of Technology Sweden Department of Mechanical Engineering University of Alberta Canada

—This paper proposes a method to navigate a mobile robot by estimating its state over a number of distributed sensor networks (DSNs) such that it can successively accomplish a sequence of tasks, i.e., its state enters each targeted set and stays inside no less than the desired time, under a resource-aware, time-efficient, and computation- and communication-constrained setting. We propose a new robot state estimation and navigation architecture, which integrates an event-triggered task-switching feedback controller for the robot and a two-time-scale distributed state estimator for each sensor. The architecture has three major advantages over existing approaches: First, in each task only one DSN is active for sensing and estimating the robot state, and for different tasks the robot can switch the active DSN by taking resource saving and system performance into account;Second, the robot only needs to communicate with one active sensor at each time to obtain its state information from the active DSN;Third, no online optimization is required. With the controller, the robot is able to accomplish a task by following a reference trajectory and switch to the next task when an event-triggered condition is fulfilled. With the estimator, each active sensor is able to estimate the robot state. Under proper conditions, we prove that the state estimation error and the trajectory tracking deviation are upper bounded by two time-varying sequences respectively, which play an essential role in the event-triggered condition. Furthermore, we find a sufficient condition for accomplishing a task and provide an upper bound of running time for the task. Numerical simulations of an indoor robot’s localization and navigation are provided to validate the proposed architecture. Copyright © 2021, The Authors. All rights reserved.

关键词： Navigation

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PID Tuning based on Classical and Meta-heuristic Algorithms: A Performance Comparison

PID Tuning based on Classical and Meta-heuristic Algorithms:...

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2020 IEEE engineering International Research Conference, EIRCON 2020

作者： Fernandez Cornejo, Edson Rodrigo Diaz, Ricardo Cajo Alama, William Ipanaque Laboratorio de Sistemas Automaticos de Control Universidad de Piura Piura Peru Ghent University Department of Electromechanical Systems and Metal Engineering Ghent Belgium

ISBN: (纸本)9781728183671

This paper presents a tuning process for PID controllers using meta-heuristic algorithms of artificial intelligence and mathematical optimization, specifically the genetic algorithm (GA), the imperialist competitive algorithm (ICA) and the active-set algorithm. The methodologies are used to calculate the optimal PID controllers for a three-Tank level system. This type of system is commonly used in the chemical industry. The optimal controllers are tuned in closed-loop, while minimizing objective functions composed of performance indexes such as Integral Square Error (ISE), Integral Absolute Error (IAE), Integral Time Square Error (ITSE) and Integral Time Absolute Error (ITAE). The results indicate that, for this process, the meta-heuristic algorithms outperform others by minimizing cost function, overshoot and settling time. © 2020 IEEE.

关键词： Genetic algorithm Imperialist competitive algorithm PID tuning

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Unintended side effect of the coal-to-gas policy in North China Plain: Migration of the sources and health risks of ambient PAHs

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Science of the Total Environment 2025年 958卷 178050页

作者： Li, Zhiyong Liu, Chen Ren, Zhuangzhuang Liu, Jinming Ma, Xiaohua Ning, Zhi Meng, Jianwei Liu, Aiqin Ma, Huichun Wang, Lei Chen, Lan Wang, Hao Kong, Shaofei Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control Department of Environmental Science and Engineering North China Electric Power University Baoding071003 China MOE Key Laboratory of Resources and Environmental Systems Optimization College of Environmental Science and Engineering North China Electric Power University Beijing102206 China Hebei Key Lab of Mineral Resources and Ecological Environment Monitoring Hebei Research Center for Geoanalysis Baoding071051 China Department of Atmospheric Sciences School of Environmental Sciences China University of Geosciences Wuhan430074 China

Ongoing coal-to-gas (CTG) largely cut down both coal consumption and associated PM2.5. However, a knowledge gap still existed in CTG impacts on the other energy and organic pollutant emissions. Coupling on-site investigation with statistical yearbooks, we provided a more realistic energy evolutions before (BCTG), during (DCTG), and after (ACTG) the CTG for Hebei Province. Together, we examined the impacts of CTG derived energy conversion on PM2.5-bound PAHs at urban (UA)/suburban rural (SRA)/remote rural (RRA) sites in winter 2022. As expected, the consumptions of coal and natural gas (NG) far decreased and increased from BCTG to ACTG, respectively. Accidentally, biomass usage rose by 60.7%, and rural CTG acted as a main driver. Specially, SRA's NG-shortage and coal-stove demolition should be the main inducements, and RRA's coal-sale ban was another trigger in the early stage of CTG. ∑18PAHs and ∑8TPAHs stand for the sum of 18 PAHs and 8 toxic PAHs, respectively. ∑18PAHs (ng/m3) presented as SRA (81.8) > RRA (46.4) > UA (19.4). Biomass burning (BB) and NG combustion (NGC) contributed most to∑18PAHs of 31.0% and 23.1% at SRA, resulting in the highest ∑18PAHs, ∑18PAHs/PM2.5, and ∑8TPAHs/PM2.5, and incremental lifetime cancer risk values. Also, NGC has become the second largest contributor at UA. Variations in both diagnostic ratios and source-depend isomers further proved the prominence of NGC related PAHs at UA vs. SRA. Notably, RRA was least affected by the CTG, coal combustion (CC, 40.4%) and BB (32.6%) still occupied the top positions. In short, CTG gave rise to an upsurge in biomass usage, and the incremental PAHs emissions from BB vs. NGC. This study underlined that the priorities should be given to rural NG guarantee and subsidy retention, and biomass prohibition for further air quality improvement. © 2024 Elsevier B.V.

关键词： Coal

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Simulation of Wind Turbine Vibrations 27

Simulation of Wind Turbine Vibrations

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27th International Workshop on Electric Drives: MPEI department of Electric Drives 90th Anniversary, IWED 2020

作者： Andriushchenko, Ekaterina Kallaste, Ants Vaimann, Toomas Rassolkin, Anton Heidari, Hamidreza Demidova, Galina L. Tallinn University of Technology Department of Electrical Power Engineering and Mechatronics Tallinn Estonia ITMO University Faculty of Control Systems and Robotics St. Petersburg Russia

ISBN: (纸本)9781728141589

In recent years, there has been an increasing interest in renewable energy. Particularly, wind energy is gaining more and more popularity in many countries. However, the main obstacles to wind turbines usage are the vibration and noise close to wind farms. Therefore, this paper is focused on developing a new method for mathematical simulation of vibrations of a wind turbine in order to find out and reduce the vibration level. Particularly, low-frequency vibration of a wind turbine, composed of a tower and rotor in the out-of-balance condition is considered. The proposed method of vibration simulation is based on the theory of elastic beams and the general vibration theory. The calculations are made for a wind turbine VTR 50 Arctic. The results of the calculations are the displacement of the tower top and the stress at the tower foundation. Furthermore, it is worth emphasizing that the method is quite flexible. It allows adding complexity into the system, for instance, external loads such as wind pressure, aerodynamic loads, seismic loads or operational loads. © 2020 IEEE.

关键词： Wind power

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Current Sharing control Method for Fuel Cell Hybrid Electric Vehicles

Current Sharing Control Method for Fuel Cell Hybrid Electric...

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IEEE PES Asia-Pacific Power and Energy engineering Conference (APPEEC)

作者： Muhammad Maaruf Georgios Konstantinou Muhammad Khalid Control and Instrumentation Engineering Department Center for Smart Mobility and Logistics SDAIA-KFUPM Joint Research Center for Artificial Intelligence School of Electrical Engineering and Telecommunications UNSW Sydney Sydney Australia Electrical Engineering Department Center for Renewable Energy and Power Systems King Fahd University of Petroleum & Minerals Dhahran Saudi Arabia

This paper considers fuel cell hybrid electric vehicles (FCHEV) including a proton exchange membrane (PEM) fuel cell as the main energy source, and lithium-ion battery and ultra-capacitor as energy storage systems to support the fuel cell. The two important objectives are to share the current demand of the traction motor among the energy sources and maintain the stability of the DC-bus voltage. The current sharing is based on an energy management scheme. A passivity-based control (PBC) approach is proposed to achieve current tracking based on the energy management and regulate the DC-bus voltage. The PBC is a nonlinear control approach that guarantees the stability of a closed-loop system by making it passive. The feasibility of the proposed control method is evaluated in MATLAB/Simulink.

关键词： Protons Lithium-ion batteries Fuel cells Traction motors Hybrid electric vehicles Resource management Fuels

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