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Inventions
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Automatic Control and System Theory and Advanced Applications
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Automatic Control and System Theory and Advanced Applications

A special issue of Inventions (ISSN 2411-5134). This special issue belongs to the section "Inventions and Innovation in Electrical Engineering/Energy/Communications".

Deadline for manuscript submissions: closed (31 March 2023) | Viewed by 17429

Special Issue Editors

Prof. Dr. Luigi Fortuna

E-Mail Website
Guest Editor
Dipartimento di Ingegneria Elettrica Elettronica e Informatica, Universita degli Studi di Catania, Viale A. Doria 6, 95125 Catania, Italy
Interests: circuits and systems for automatic control; dynamics of networks; electronic analog devices for sensor and controller; control of nonlinear circuits; biorobotics; nonlinear networks; advanced applications of control and system theory in sciences
Special Issues, Collections and Topics in MDPI journals
Dr. Arturo Buscarino

E-Mail Website
Guest Editor
Department of Electrical Engineering, Electronics and Informatics, University of Catania, 95125 Catania, Italy
Interests: nonlinear electronic circuits; nuclear fusion control; system theory
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This Special Issue follows the publication of the first edition on “Automatic Control and System Theory”. It still aims to explore new topics and new ideas in automatic control and system theory, including also advanced applications.

Authors are invited to submit contributions that focus on innovative schemes, innovative applications, and new theories in automatic control and system theory. Moreover, unsolved problems in mathematical systems and control theory is a fundamental topic for control scientists. The potential authors of the papers of this Special Issue can also take into account their contributions to propose new unsolved problems. They could take, as a reference, the book edited by Vincent Blondel and Alexandre Megretski in 2004 to have a view of the unsolved problems considered at that year.

Authors are, therefore, invited to make efforts to be visionaries and to propose papers not usually found in automatic control journals; moreover, their efforts should also be addressed at focalizing new aspects of mathematics of systems.

Papers that discuss how to improve the educational aspects of automatic control and system theory will be welcome. Multidisciplinary papers emphasizing integration among control theory, human sciences, and history will also be considered.

Prof. Dr. Luigi Fortuna
Dr. Arturo Buscarino
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Inventions is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1800 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Automatic control
  • System theory
  • Invention of new control paradigms
  • Theory of innovation and automatic control
  • Unsolved problems in automatic control and system theory
  • Model order reduction
  • Microfluidics
  • Electronic circuits for control
  • Perspective in system theory
  • Tokamak machine control

Published Papers (8 papers)

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Editorial

Jump to: Research

9 pages, 283 KiB  
Editorial
Automatic Control and System Theory and Advanced Applications—Volume 2
by Luigi Fortuna and Arturo Buscarino
Inventions 2024, 9(1), 5; https://doi.org/10.3390/inventions9010005 - 29 Dec 2023
Cited by 1 | Viewed by 1435
Abstract
The aim of the Special Issue on Automatic Control and System Theory and Advanced Applications, the second volume of a previous paper selection, is to emphasize the role of new inventions in the area of automatic control applications [...] Full article
(This article belongs to the Special Issue Automatic Control and System Theory and Advanced Applications)
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Research

Jump to: Editorial

23 pages, 8270 KiB  
Article
A Dynamic Control Model of the Blades Position for the Vertical-Axis Wind Generator by a Program Method
by Ivaylo Stoyanov, Teodor Iliev, Alina Fazylova and Gulsara Yestemessova
Inventions 2023, 8(5), 120; https://doi.org/10.3390/inventions8050120 - 25 Sep 2023
Cited by 1 | Viewed by 1214
Abstract
This article discusses the construction of a dynamic model for controlling the position of the blades of a vertical-axis wind generator using an automatic approach; a method is presented that relates the rotation of the motor to the position of the blades, which [...] Read more.
This article discusses the construction of a dynamic model for controlling the position of the blades of a vertical-axis wind generator using an automatic approach; a method is presented that relates the rotation of the motor to the position of the blades, which allows the optimization of the operation of the control system. In the research process, an automatic approach is used, which makes it possible to carry out numerical calculations that predict the behavior of the system at various values of motor rotation. The model allows us to analyze the dependence of the position of the blades on the rotation of the motor and determine the optimal parameters of the mathematical control model. The main goal of our study is to develop a mathematical model of the mechanism for further adjustment of the wind turbine blade position control system depending on the wind speed. Full article
(This article belongs to the Special Issue Automatic Control and System Theory and Advanced Applications)
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14 pages, 2436 KiB  
Article
The Optimal Daily Dispatch of Ice-Storage Air-Conditioning Systems
by Ching-Jui Tien and Ming-Tang Tsai
Inventions 2023, 8(2), 62; https://doi.org/10.3390/inventions8020062 - 17 Apr 2023
Cited by 1 | Viewed by 1186
Abstract
In this paper, the Ant-based Radial Basis Function Network (ARBFN) is proposed to determine the optimal daily dispatch of ice-storage air-conditioning systems. ARBFN is a novel algorithm that is integrated into the Ant Colony Optimization and Radial Basis Function Network. ARBFN is used [...] Read more.
In this paper, the Ant-based Radial Basis Function Network (ARBFN) is proposed to determine the optimal daily dispatch of ice-storage air-conditioning systems. ARBFN is a novel algorithm that is integrated into the Ant Colony Optimization and Radial Basis Function Network. ARBFN is used to construct the function of the cost and operation for each chiller and ice-storage tank and is used to simulate the polynomial function of the cooling load and the cost of power consumption. The best learning rate in the training process is adjusted in ARBFN to improve the accuracy of constructing models for chillers and ice-storage tanks. The electricity savings are thus 4.130% on a summer day and 7.381% on a non-summer day. The results have shown that ARBFN can more accurately calculate the actual power consumption and cooling capability of each chiller and ice-storage tank. Lastly, ACO is used to calculate the daily dispatch of the ice-storage air-conditioning system. The results demonstrated the optimization of energy savings and efficiency for the operation of the ice-storage air-conditioning system. Full article
(This article belongs to the Special Issue Automatic Control and System Theory and Advanced Applications)
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14 pages, 1153 KiB  
Article
Development of a Method for Improving the Energy Efficiency of Oil Production with an Electrical Submersible Pump
by Anton Petrochenkov, Pavel Ilyushin, Sergey Mishurinskikh and Anton Kozlov
Inventions 2023, 8(1), 29; https://doi.org/10.3390/inventions8010029 - 23 Jan 2023
Cited by 8 | Viewed by 1622
Abstract
Most of the operating oil fields are in the late stages of development, in which special attention is paid to the oil production energy efficiency. In accordance with the trend toward the digitalization of technical processes, intelligent control stations for production wells are [...] Read more.
Most of the operating oil fields are in the late stages of development, in which special attention is paid to the oil production energy efficiency. In accordance with the trend toward the digitalization of technical processes, intelligent control stations for production wells are currently being developed, one of the main tasks of which is to maintain the equipment operation in an optimal mode. This work aims to develop a methodology for selecting an energy-efficient well operation mode by choosing the methods for controlling an electrical submersible pump. To solve this problem, a mathematical apparatus for calculating power consumption is presented, which considers the well pressure curve, while taking into account its degradation when pumping reservoir fluids, the fluids’ properties, the supply of demulsifier, and the equipment’s operating parameters. Based on the simulation results, it is revealed that the optimal method for controlling electrical submersible pump installations is a combination of frequency control and choke control. The reduction in specific power consumption with the combined control relative to the use of separate control types is up to 7.30%, and in the case of additional use of a demulsifier, it is up to 12.01%. The developed algorithms can be implemented based on programmable logic controllers of intelligent control stations. Full article
(This article belongs to the Special Issue Automatic Control and System Theory and Advanced Applications)
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22 pages, 8770 KiB  
Article
Fractional Order Active Disturbance Rejection Control for Canned Motor Conical Active Magnetic Bearing-Supported Pumps
by Danh Huy Nguyen, The Tai Ta, Le Minh Vu, Van Trong Dang, Danh Giang Nguyen, Duc Thinh Le, Duy Dinh Nguyen and Tung Lam Nguyen
Inventions 2023, 8(1), 15; https://doi.org/10.3390/inventions8010015 - 09 Jan 2023
Cited by 3 | Viewed by 2038
Abstract
Active magnetic bearings (AMBs) are electromagnetic mechanism systems in which non-contact bearings support a rotating shaft using attractive forces generated by electromagnets through closed-loop control. For complete support of a five degree of freedom (DOF) rotor system, most AMB structures include two radial [...] Read more.
Active magnetic bearings (AMBs) are electromagnetic mechanism systems in which non-contact bearings support a rotating shaft using attractive forces generated by electromagnets through closed-loop control. For complete support of a five degree of freedom (DOF) rotor system, most AMB structures include two radial actuators and one for the axial direction. Conical active magnetic bearings (CAMBs) is one of the development directions of conventional magnetic bearings in which the requirement of the axial bearing can be eliminated. In this paper, we propose a structure with a CAMB integrated into a canned motor pump to eliminate the need for mechanical bearings and shaft seals. However, this system necessitates a more complicated control strategy due to a significant coupling effect between rotor motion and hydrodynamic disturbances. This paper presents a fractional order active disturbance rejection control (FOADRC) including a fractional order extend state observer (FOESO) and a proportional derivative controller (PD) to track and reject lumped disturbances actively. The proposed controller achieves better performance than the integer-type ADRC and traditional PID controller. The control performance of the proposed FOADRC is illustrated in terms of very good disturbance rejection capability that is demonstrated through MATLAB/Simulink simulation results. Full article
(This article belongs to the Special Issue Automatic Control and System Theory and Advanced Applications)
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11 pages, 2339 KiB  
Article
Design of a Smart Barrier to Internal Flooding
by Jorge Muñoz-Caballero, Diego Vergara, Pablo Fernández-Arias and Álvaro Antón-Sancho
Inventions 2022, 7(4), 88; https://doi.org/10.3390/inventions7040088 - 30 Sep 2022
Cited by 2 | Viewed by 3407
Abstract
Increasingly, and with greater frequency, humanity is experiencing violent weather storms, which cause innumerable human and economic losses. Among the most frequent climatic storms that cause considerable losses are floods. Usually, domestic anti-flood systems are not autonomous; they require human intervention. This article [...] Read more.
Increasingly, and with greater frequency, humanity is experiencing violent weather storms, which cause innumerable human and economic losses. Among the most frequent climatic storms that cause considerable losses are floods. Usually, domestic anti-flood systems are not autonomous; they require human intervention. This article presents Smart Flood Barrier (SFB), which is a fully automated system using sensors and composed of hinged lintels that can be installed on any door of any commercial brand. SFB is responsible for diverting the flow of fluid towards the center of a street with a certain slope, generating a “dry zone” near the entrance door to the house. This device also has a barrier installed in front of the door, which will be responsible for hermetically sealing the lintels, preventing the passage into the interior of the house if it is possible for the fluid to flow in the opposite direction to the direction of fluid flow. Full article
(This article belongs to the Special Issue Automatic Control and System Theory and Advanced Applications)
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11 pages, 3408 KiB  
Article
A New Maximum Power Point Tracking Technique for Thermoelectric Generator Modules
by Mohammed A. Qasim, Naseer T. Alwan, Seepana PraveenKumar, Vladimir I. Velkin and Ephraim Bonah Agyekum
Inventions 2021, 6(4), 88; https://doi.org/10.3390/inventions6040088 - 18 Nov 2021
Cited by 21 | Viewed by 2913
Abstract
Thermoelectric generators (TEGs) are devices that convert heat into electricity. This paper is about the design of a Maximum Power Point Tracking (MPPT) technique for a TEG module. The module is built using 204 TEGs connected in series. It is connected to the [...] Read more.
Thermoelectric generators (TEGs) are devices that convert heat into electricity. This paper is about the design of a Maximum Power Point Tracking (MPPT) technique for a TEG module. The module is built using 204 TEGs connected in series. It is connected to the load through a DC/DC boost converter. The MPPT technique used in this work is the Interval Type 2 Fuzzy Logic Controller (IT2FLC). To verify its performance, the IT2FLC is compared with a traditional Perturb and Observe (P&O) MPPT algorithm in the case of power and voltage response at steady state, load switching, and through various ranges of temperature differences (ΔT). The TEG module is modeled and the whole system is simulated successfully using MATLAB SIMULINK R2017a. Full article
(This article belongs to the Special Issue Automatic Control and System Theory and Advanced Applications)
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12 pages, 1039 KiB  
Article
Kalman Filter Adaptation to Disturbances of the Observer’s Parameters
by Alexander A. Manin, Sergey V. Sokolov, Arthur I. Novikov, Marianna V. Polyakova, Dmitriy N. Demidov and Tatyana P. Novikova
Inventions 2021, 6(4), 80; https://doi.org/10.3390/inventions6040080 - 02 Nov 2021
Cited by 4 | Viewed by 2496
Abstract
Currently, one of the most effective algorithms for state estimation of stochastic systems is a Kalman filter. This filter provides an optimal root-mean-square error in state vector estimation only when the parameters of the dynamic system and its observer are precisely known. In [...] Read more.
Currently, one of the most effective algorithms for state estimation of stochastic systems is a Kalman filter. This filter provides an optimal root-mean-square error in state vector estimation only when the parameters of the dynamic system and its observer are precisely known. In real conditions, the observer’s parameters are often inaccurately known; moreover, they change randomly over time. This in turn leads to the divergence of the Kalman estimation process. The problem is currently being solved in a variety of ways. They include the use of interval observers, the use of an extended Kalman filter, the introduction of an additional evaluating observer by nonlinear programming methods, robust scaling of the observer’s transmission coefficient, etc. At the same time, it should be borne in mind that, firstly, all of the above ways are focused on application in specific technical systems and complexes, and secondly, they fundamentally do not allow estimating errors in determining the parameters of the observer themselves in order to compensate them for further improving the accuracy and stability of the filtration process of the state vector. To solve this problem, this paper proposes the use of accurate observations that are irregularly received in a complex measuring system (for example, navigation) for adaptive evaluation of the observer’s true parameters of the stochastic system state vector. The development of the proposed algorithm is based on the analytical dependence of the Kalman estimate variation on the observer’s parameters disturbances obtained using the mathematical apparatus for the study of perturbed multidimensional dynamical systems. The developed algorithm for observer’s parameters adaptive estimation makes it possible to significantly increase the accuracy and stability of the stochastic estimation process as a whole in the time intervals between accurate observations, which is illustrated by the corresponding numerical example. Full article
(This article belongs to the Special Issue Automatic Control and System Theory and Advanced Applications)
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