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Research on the Optimal Selection of Electromechanical Drives

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "F: Electrical Engineering".

Deadline for manuscript submissions: closed (20 November 2022) | Viewed by 9877

Special Issue Editors

Institute of Machine Design, Poznan University of Technology, 60-965 Poznań, Poland
Interests: designing machines and devices used in technological and production processes; modernization and expansion of machines and devices used in the industry and service sector; technological processes of biomass compaction and cutting, as well as the design of machines and devices used for such processes; new trends in the machine design and their exploitation
Department of Machine Design, Calisia University, 62-800 Kalisz, Poland
Interests: electroacoustic transducers; loudspeaker diaphragm mechanics; new trends in the machine design and their exploitation

Special Issue Information

Dear Colleagues,

Electromechanical drive systems are widely used in every area of life. Their development is extremely important in terms of failure-free operation, but the main focus is on the lowest possible energy consumption, which is an important ecological aspect. As machine designers, we can contribute to an additional reduction in energy consumption through proper shaping of geometrical, material, and dynamic features of machine parts and their assemblies. This will lead to the selection of an electric motor characterized by lower nominal power. I invite everyone to share their research results, which will improve the process of designing machines and devices used for various applications in multiple areas to reduce energy consumption and make them more efficient.

Dr. Dominik Wilczyński
Dr. Radosław Pytliński
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.

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Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 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

  • Energy consumption
  • Electromechanical drives
  • Multifactorial selection
  • Efficient drives
  • Modeling of the electromechanical drives
  • Optimization
  • Design of electromechanical drive systems
  • Power transmissions
  • Electromagnetic actuators
  • Estimation the working load

Published Papers (6 papers)

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Research

20 pages, 8757 KiB  
Article
Selection of the Electric Drive for the Wood Waste Compacting Unit
by Dominik Wilczyński, Krzysztof Talaśka, Dominik Wojtkowiak, Krzysztof Wałęsa and Szymon Wojciechowski
Energies 2022, 15(20), 7488; https://0-doi-org.brum.beds.ac.uk/10.3390/en15207488 - 11 Oct 2022
Cited by 3 | Viewed by 986
Abstract
This work presents the study of the compaction and unloading process wood post-production waste, i.e., oak sawdust. The sawdust was compacted employing the forces F = 5000, 10,000, 20,000, 30,000, 40,000 and 50,000 N. Each compacted sample was compressed so as to determine [...] Read more.
This work presents the study of the compaction and unloading process wood post-production waste, i.e., oak sawdust. The sawdust was compacted employing the forces F = 5000, 10,000, 20,000, 30,000, 40,000 and 50,000 N. Each compacted sample was compressed so as to determine the force value Fc required for the destruction of the sample. For each compaction force, the coefficient of the friction value µ1 was determined for the sawdust–steel material pair, which was used in the construction of the sleeve and stamp compacting system employed in the study. The determined parameters of the compressive force Fc and the coefficient of friction µ1 as a function of the compaction force F enabled to determine the optimal process parameters. A proposed construction of the compacting unit with an electrical drive is provided in the following part of the work comprising a motor, gear wheels, cam and a compacting piston. The selection of the parameters for the compaction process and the drive is of key importance from the standpoint of its energy consumption, influencing the energy balance, i.e., the ratio of input process energy and the energy obtained from the manufactured briquette. For the purpose of selecting the drive system, a mathematical model was developed utilizing earlier results of experimental studies. This model enabled to determine the maximum torque value Ms necessary to drive the proposed compacting unit. As a result of the carried-out work, it was determined that the maximum compaction force F is not ideal, considering other process parameters and their influence on its performance, allowing to lower the maximum torque and power of the proposed compacting unit. Full article
(This article belongs to the Special Issue Research on the Optimal Selection of Electromechanical Drives)
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29 pages, 7694 KiB  
Article
AI Energy Optimal Strategy on Variable Speed Drives for Multi-Parallel Aqua Pumping System
by Manickavel Baranidharan and Rassiah Raja Singh
Energies 2022, 15(12), 4343; https://0-doi-org.brum.beds.ac.uk/10.3390/en15124343 - 14 Jun 2022
Cited by 5 | Viewed by 2249
Abstract
In the industrial world, parallel pump systems are frequently employed. Due to various reasons, the pumps are frequently operated outside their intended parameters, which reduces their efficiency and performance. To operate the pump system with optimum efficiency, the pumps and their speed selection [...] Read more.
In the industrial world, parallel pump systems are frequently employed. Due to various reasons, the pumps are frequently operated outside their intended parameters, which reduces their efficiency and performance. To operate the pump system with optimum efficiency, the pumps and their speed selection are mandatory. This research presents an optimum switching technique for variable speed pumping stations with multi-parallel pump combinations to enhance energy savings. The proposed optimal control system is designed in such a way as to decrease overall losses in the pump system. The effectiveness of the proposed method is investigated on a real scale of a multi-parallel pump drive system in a Matlab Simulink environment, and experimental validation is performed in a laboratory prototype. The suggested approach enhances power savings and shall be adapted for various pumping applications. Full article
(This article belongs to the Special Issue Research on the Optimal Selection of Electromechanical Drives)
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19 pages, 6065 KiB  
Article
The Use of a Model-Based Controller for Dynamics Improvement of the Hydraulic Drive with Proportional Valve and Synchronous Motor
by Dominik Rybarczyk and Andrzej Milecki
Energies 2022, 15(9), 3111; https://0-doi-org.brum.beds.ac.uk/10.3390/en15093111 - 24 Apr 2022
Cited by 5 | Viewed by 1259
Abstract
Electrohydraulic drives consist of several nonlinear elements, and the use and design of their control system is difficult. One of the most important parameters of the industrial drive is its settling time, which characterizes their dynamics. An interesting control method, which can be [...] Read more.
Electrohydraulic drives consist of several nonlinear elements, and the use and design of their control system is difficult. One of the most important parameters of the industrial drive is its settling time, which characterizes their dynamics. An interesting control method, which can be used for the improvement of electrohydraulic drive properties, is the model-following control (MFC). This technique enables to ensure the good control parameters of nonlinear systems in quite an easy way. In this paper, a modification consisting of changing the oil flow factor in the reference model is proposed. This improves both the dynamics of the electrohydraulic servo drive and the adaptation to the load forces, and thus energy consumption. The article describes the application of the MFC method to control an electrohydraulic servo drive in which a special proportional valve, with an permanent magnet synchronous motor (PMSM), is used. To verify the effectiveness of this method, a theoretical description of the drive is proposed. The applied MFC control system is then modeled and investigated in simulations. Lastly, laboratory investigations are made and chosen results are presented and described in the paper. The results obtained in simulation are compared with results obtained in laboratory tests. The investigations show that the usage of MFC shortens the drive settling time and, in this way, improves its dynamics. Full article
(This article belongs to the Special Issue Research on the Optimal Selection of Electromechanical Drives)
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20 pages, 12179 KiB  
Article
Method of Reduction in Energy Consumption by the Drive Systems of a Mobile Device with a Controlled Gear Ratio
by Karol Bagiński, Wojciech Credo, Jakub Wierciak and Sergiusz Łuczak
Energies 2022, 15(7), 2674; https://0-doi-org.brum.beds.ac.uk/10.3390/en15072674 - 06 Apr 2022
Viewed by 1263
Abstract
The degree of autonomy of a battery-powered mobile device depends, among others, on the efficient use of energy by the powered devices. Using an example of electric drive systems of an orthotic robot, the authors present a method of reducing the energy demand [...] Read more.
The degree of autonomy of a battery-powered mobile device depends, among others, on the efficient use of energy by the powered devices. Using an example of electric drive systems of an orthotic robot, the authors present a method of reducing the energy demand of these systems by using a gear with a controlled ratio. The gear ratios are selected on the basis of special graphs illustrating the instantaneous energy consumption during drive operations. The simulation studies proved a possibility of achieving energy savings during the implementation of the robotic functions of the robot as high as 50%. The article presents the course and results of the research as well as the concept of their use while designing electric drive systems for mobile devices. Full article
(This article belongs to the Special Issue Research on the Optimal Selection of Electromechanical Drives)
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20 pages, 4716 KiB  
Article
An Analytical Modelling of Demand for Driving Torque of a Wheelchair with Electromechanical Drive
by Mateusz Kukla, Bartosz Wieczorek, Łukasz Warguła, Jan Górecki and Marcin Giedrowicz
Energies 2021, 14(21), 7315; https://0-doi-org.brum.beds.ac.uk/10.3390/en14217315 - 04 Nov 2021
Cited by 7 | Viewed by 1684
Abstract
This study aimed at analysing the influence of the position of the centre of gravity variability and the movement velocity on the demand for a torque and work time coverage of a wheelchair with an electromechanical drive. The variable parameter in the study [...] Read more.
This study aimed at analysing the influence of the position of the centre of gravity variability and the movement velocity on the demand for a torque and work time coverage of a wheelchair with an electromechanical drive. The variable parameter in the study was the configuration of the wheelchair, namely changes in the position of the batteries which changed the weight distribution. An analytical model describing the demand for torque was used in the analysis. The set of equations was introduced into the numerical calculation software. Simulations were carried out which allowed it to analyse selected parameters of the wheelchair dynamics. An increase in the torque demand was observed due to the increase in the mass of the system from 427.7 N to 533.1 N, ranging from 6.1% to 31.6% at the simulated velocity v7 = 4.2 m/s. The increase in the demand for torque due to the increase in velocity of the wheelchair from v2 = 1.05 m/s to v7 = 4.2 m/s ranged from 25.9% to 31.6% compared to the reference velocity v1 = 0.525 m/s. The centre of gravity of the wheelchair structure localization has a non-linear impact on the analysed values. At the same time, it was not possible to define its nature—this issue remains open and requires further research. Full article
(This article belongs to the Special Issue Research on the Optimal Selection of Electromechanical Drives)
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14 pages, 4783 KiB  
Article
Influences of Control Parameters on Reduction of Energy Losses in Electrohydraulic Valve with Stepping Motors
by Andrzej Milecki and Jarosław Ortmann
Energies 2021, 14(19), 6114; https://0-doi-org.brum.beds.ac.uk/10.3390/en14196114 - 26 Sep 2021
Cited by 3 | Viewed by 1455
Abstract
In many heavy machines, the use of high force drives is required. For such tasks, electrohydraulic servo drives with proportional valves are used most often. In these valves, the proportional electromagnets are applied. If high precise control is additionally required, it is necessary [...] Read more.
In many heavy machines, the use of high force drives is required. For such tasks, electrohydraulic servo drives with proportional valves are used most often. In these valves, the proportional electromagnets are applied. If high precise control is additionally required, it is necessary to use expensive servo valves or precise stepping motors. In this paper, the application of a valve with one (or with two) stepping motors in the electrohydraulic servo drive is described. Such motors may work in a micro-step mode, which enables the precise positioning of the valve spool with low energy consumption. The control system structure that was used for positioning, consisting of such an electrohydraulic servo drive with a valve having stepping motors, is described. In the investigations, the following control parameters are considered: the number of stepping motors used, proportional gain coefficients, supply pressure, and desired step distance. The simulation model of the servo drive is proposed, enabling the investigations of energy consumption during the positioning process. In the investigations, the drive step responses are recorded and compared, taking into account the rise time and energy consumption. The overshot-free algorithm is used in the following step and tested in positioning tasks. The collected results of energy consumption of the drive during the positioning process are compared with other solutions. Full article
(This article belongs to the Special Issue Research on the Optimal Selection of Electromechanical Drives)
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