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A special issue of Machines (ISSN 2075-1702). This special issue belongs to the section "Electromechanical Energy Conversion Systems".

Deadline for manuscript submissions: closed (31 December 2022) | Viewed by 12693

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Prof. Dr. Andrey A. Radionov

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Guest Editor

Department of Mechatronics and Automation, South Ural State University, 454080 Chelyabinsk, Russia
Interests: industrial and power electronics; power engineering; industrial mechatronic systems; automation and control systems
Special Issues, Collections and Topics in MDPI journals

Dr. Vadim R. Gasiyarov

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Guest Editor

Mechatronics and Automation Department, South Ural State University, 454080 Chelyabinsk, Russia
Interests: power engineering; industrial mechatronic systems; automation and control systems
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This Special Issue will accept contributions describing innovative research and developments in “Automatic Control”, “Industrial Engineering” and “Power Engineering”. The overall objective is to cover a wide range of disciplines, including mechanical engineering, materials engineering and technologies for production and processing, energy, electrical engineering and automation engineering. Emphasis is given to methods and findings aimed at determining the prospects for the development of smart industry technologies and the creation of promising technologies for the digital transformation of industries.

Suitable topics for this Special Issue include, but are not limited to:

Machinery and mechanism design;
Dynamics of machines and working processes;
Friction, wear and lubrication in machines;
Design and manufacturing engineering of industrial facilities;
Transport and technological machines;
Mechanical treatment of materials;
Industrial hydraulic systems;
Steels and alloys, metallurgical and metalworking technologies;
Surface engineering and coatings;
Processing and controlling technologies.
Control theory;
Machine learning, big data and the Internet of things;
Flexible manufacturing systems;
Industrial robotics and mechatronic systems;
Computer vision;
Industrial automation systems cybersecurity;
Industrial processes control and automation;
Diagnostics and reliability of automatic control systems.
Modeling and computer technologies for industrial applications;
Power systems and smart grids;
Renewable energy;
Electromagnetic compatibility, power and voltage quality;
Electrical power systems: optimization and modeling;
Power electronics converters, electrical machines and industrial drives.

We invite you to contribute your high-quality research in the form of research or review articles.

Prof. Dr. Andrey A. Radionov
Dr. Vadim R. Gasiyarov
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. Machines is an international peer-reviewed open access monthly 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 2400 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.

Published Papers (6 papers)

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Research

22 pages, 7547 KiB

Open AccessArticle

Substantiating and Implementing Concept of Digital Twins for Virtual Commissioning of Industrial Mechatronic Complexes Exemplified by Rolling Mill Coilers

by Vadim R. Gasiyarov, Pavel A. Bovshik, Boris M. Loginov, Alexander S. Karandaev, Vadim R. Khramshin and Andrey A. Radionov

Machines 2023, 11(2), 276; https://doi.org/10.3390/machines11020276 - 12 Feb 2023

Cited by 8 | Viewed by 1593

Abstract

Implementing digital technologies and digital twins (DT) in operating industrial units is one of the key problems in smart production. Metallurgical plants require a solution to implement in the rolling mill retrofitting. A conceptual approach to the virtual configuration of industrial mechatronic complexes based on object-oriented digital twins-prototypes and twins-instances of electromechanical and hydraulic systems is justified. Alternative options for virtual commissioning (VC) were considered, and the Hardware-In-The-Loop (HIL) option was adopted, involving the implementation of DTs in the hardware and software of a programmable logic controller (PLC). Virtual models were built, and control algorithms were tested in the Matlab Simulink software; the prospect of using Simscape domains was noted. The paper’s contribution is the description of a methodology for the development of object-oriented DTs, interlinked in the process, exemplified by a rolling mill coiler. The results of the control over the ‘virtual reeling’ mode are provided; the adequacy of real and virtual processes is confirmed. The problem of developing DTs for a coiler group, solved herein, is a fragment of a large-scale scientific and practical problem of developing DTAs (digital twin aggregates) for interconnected mechatronic rolling mill complexes. The developed VC methodology and proposed DTs are recommended for the commercial implementation in various industrial units. Developing frameworks of mechatronic systems and multi-domain DTE (Digital Twin Environment) applications are shown as prospects for future research. Full article

(This article belongs to the Special Issue Advances in Automation, Industrial and Power Engineering)

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13 pages, 4197 KiB

Open AccessArticle

Experimental Determination and Calculation of the Wire Drawing Force in Monolithic Dies on Straight-Line Drawing Machines

by Liudmila V. Radionova, Dmitry V. Gromov, Roman A. Lisovskiy and Ivan N. Erdakov

Machines 2023, 11(2), 252; https://doi.org/10.3390/machines11020252 - 08 Feb 2023

Cited by 1 | Viewed by 3487

Abstract

In this article, a mathematical model has been developed for calculating the energy-power parameters of the drawing process in monolithic dies on straight-line drawing machines, and its adequacy has been validated in experimental wire drawing on a laboratory automated drawing machine. The program allows us to calculate drawing stress, drawing force, tensile strength and yield strength of the alloy after wire drawing, safety factor, and drawing power. The developed mathematical model differs in that it allows us to evaluate the uniformity of deformation over the wire section, depending on the technological parameters of the deformation zone, namely, the semi-angular die, the coefficient of friction and the degree of deformation. To select the technological parameters of the deformation zone, which ensure uniform deformation over the wire cross-section, a nomogram was compiled. The equations of hardening during nickel NP2 wire drawing are obtained. The calculation of energy-power parameters of drawing nickel NP2 (Ni 99.6) wire ∅1.8 mm from ∅4.94 mm wire rod is given. Experimental studies have been carried out to determine the energy-power parameters of nickel wire drawing on a laboratory drawing machine with an installed ring strain gauge to determine the drawing force. A change in the friction coefficient by 0.02 when drawing nickel wire leads to an increase in stress and drawing force by 20%. To improve the accuracy of the developed mathematical model, it is shown that in the future, it would be necessary to conduct experimental studies on a laboratory drawing machine to determine the effect on the energy-power parameters of the drawing process of the values of technological parameters entered into the program as constant real values, such as the friction coefficient, die half-angle, drawing speed, and back tension. Full article

(This article belongs to the Special Issue Advances in Automation, Industrial and Power Engineering)

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15 pages, 3078 KiB

Open AccessArticle

Assessment of the Technical Condition of High-Voltage Insulators during Operation

by Dmitry Ivanov, Aleksandr Golenishchev-Kutuzov, Marat Sadykov, Danil Yaroslavsky and Tatyana Galieva

Machines 2022, 10(11), 1063; https://doi.org/10.3390/machines10111063 - 11 Nov 2022

Viewed by 1477

Abstract

During the operation process of high-voltage insulators, the characteristics of assessing their technical state are evaluated by using remote contactless monitoring and by subsequent forecasting of their residual life based on the developed set of diagnostic parameters of critical defects. Special attention is paid to the challenges of the practical application for remote contactless monitoring of high-voltage insulators’ current operating state. Measurements of characteristics for partial discharges on high-voltage insulators with various types of critical defects taken by electromagnetic and acoustic sensors are described. Based on the measurements, it was found that the unusual properties of the PD begin to manifest themselves starting from the intensities q ≥ 1.5–2 nC, and their maximum intensity can reach 5–7 nC. Up to PD intensities q ≤ 3 nC, most parameters of PD characteristics measured by electromagnetic and acoustic sensors correspond with an accuracy of 70–90%. It was found that for small defects with sizes d ≤ 300 μm in HVI, the PD intensity does not exceed 100 pC and depends little on the size of the defect. However, with an increase in the size of defects above 0.4–0.6 mm, a sharp rise in the intensity of the emerging VLPD begins. Full article

(This article belongs to the Special Issue Advances in Automation, Industrial and Power Engineering)

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17 pages, 4872 KiB

Open AccessArticle

Fuel Consumption Comparison between Hydraulic Mechanical Continuously Variable Transmission and Stepped Automatic Transmission Based on the Economic Control Strategy

by Yuting Chen, Zhun Cheng and Yu Qian

Machines 2022, 10(8), 699; https://doi.org/10.3390/machines10080699 - 17 Aug 2022

Cited by 2 | Viewed by 1632

Abstract

Hydraulic mechanical continuously variable transmission (HMCVT) is a transmission system combining mechanical and hydraulic power flow. The matching and design of the power source and transmission system contribute to the energy-saving and emission reduction of vehicles, and meet the requirements of modern society for environmental protection and energy-saving. This paper takes the transmission system of the pickup truck as a research object to research the transmission ratio control strategy of a self-designed new HMCVT with the goal of minimizing fuel consumption. The research compares it with the standard stepped automatic transmission (SAT). The vehicle model was based on CarSim and MATLAB/Simulink. The simulation was carried out under the EPA cycle, NEDC, and the six-mode cycle. The fuel consumption of SAT and that of HMCVT were compared. The results show that the average fuel savings of the pickup truck with HMCVT are 4.52% in the EPA cycle, 7.01% in the NEDC, and 4.84% in the six-mode cycle compared to the eight-speed SAT. In conclusion, HMCVT is more economically efficient than SAT. Full article

(This article belongs to the Special Issue Advances in Automation, Industrial and Power Engineering)

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15 pages, 3118 KiB

Open AccessArticle

Methodology Approbation for the Overhead Power Lines Sag Determining by the Period of Conductor Owned Oscillations

by Danil Yaroslavsky, Marat Sadykov, Mikhail Goryachev, Dmitry Ivanov and Nikolay Andreev

Machines 2022, 10(8), 685; https://doi.org/10.3390/machines10080685 - 11 Aug 2022

Viewed by 1141

Abstract

The relevance of the problem is justified and the review of existing methods for determining the overhead line sag by the period of the conductor owned oscillations is conducted. The method of controlling the sag by the period of its own oscillations is briefly presented. The experimental installation for conducting full-scale tests is described, which includes the conductor (64 m), rigid fasteners at the points of conductor suspension, accelerometer, and temperature sensor mounted on the conductor, data from which are processed and recorded by the specialized software. The measurement method is explained with a detailed description. The conductor oscillations spectral analysis is performed. The results of experimental main harmonic frequency measurements, conductor, and changes in the sag are presented. A comparative results analysis showed the efficiency of the proposed method. The described method for determining the sag is easy to use (it is enough to install an accelerometer on the conductor and process data from it) and can be recommended for monitoring the condition of overhead power lines. The correlation of changes in the conductor oscillations spectral harmonics amplitude with temperature was studied. It is found that the correlation coefficient initially increases with the growth of the harmonics number. It is maximal for the ninth harmonic R = −0.9, and then slowly weakens, remaining between 0.9 and 0.8. This property of high-frequency harmonic oscillations can be used in the high-voltage lines condition diagnosis. Full article

(This article belongs to the Special Issue Advances in Automation, Industrial and Power Engineering)

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14 pages, 2066 KiB

Open AccessEditor’s ChoiceArticle

Optimization and Realization of the Coordination Control Strategy for Extended Range Electric Vehicle

by Keqin Zhao, Diming Lou, Yunhua Zhang and Liang Fang

Machines 2022, 10(5), 297; https://doi.org/10.3390/machines10050297 - 22 Apr 2022

Cited by 4 | Viewed by 1745

Abstract

This paper designed a fuzzy adaptive proportional integral differential (PID) control algorithm to optimize the overshoot of speed and torque, fuel consumption and exhaust emissions of the traditional PID control strategy in the process of working condition switching of an extended range electric vehicle. The simulation was carried out in Matlab/Simulink, and the optimization of the control strategy was verified by a bench test. The results show that the fuzzy adaptive PID control strategy effectively reduced the speed overshoot in the process of working condition switching compared with the traditional PID control strategy. The bench test proved that the fuzzy adaptive PID control strategy could effectively optimize the switching process, especially in the speed and torque reduction switching process, and the speed overshoot rate of the fuzzy PID control was greatly reduced to 0.7%, far less than that of the traditional PID control with 6.6%, while the torque overshoot rate was within 0.8%. Additionally, the fuzzy adaptive PID control could effectively reduce the fuel consumption, especially in the switching process of increasing the speed and torque, where the fuel consumption of the fuzzy adaptive PID control was 2.1% and 0.5% lower than that of the traditional PID control, respectively. Additionally, the fuzzy adaptive PID control could also reduce the particulate emissions, especially in the process of increasing the speed and torque, where the number of particles of the fuzzy PID control was 11% and 19% less than that of the traditional PID control, respectively. However, the NOx emissions based on the fuzzy PID control were slightly higher than those of the traditional PID control due to the smooth operation and improved combustion. Full article

(This article belongs to the Special Issue Advances in Automation, Industrial and Power Engineering)

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