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Journal articles on the topic 'Electromechanical energy converters'

Author: Grafiati

Published: 30 May 2022

Last updated: 31 May 2022

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1

Karayan, Hamlet, and Seyran Gandilyan. "Development trends of combined inductance-capacitance electromechanical energy converters." MATEC Web of Conferences 161 (2018): 02005. http://dx.doi.org/10.1051/matecconf/201816102005.

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In the article the modern state of completely new direction of electromechanical science such as combined inductive-capacitive electromechanics is considered. The wide spectra of its possible practical applications and prospects for further development are analyzed. A new approach for mathematical description of transients in dualcon jugate dynamic systems is proposed. On the basis of the algorithm differential equations for inductive-capacitive compatible electromechanical energy converters are derived. The generalized Lagrangian theory of combined inductively-capacitive electric machines was developed as a union of generalized Lagrangian models of inductive and capacitive electro-mechanical energy converters developed on the basis of the basic principles of binary-conjugate electrophysics. The author gives equations of electrodynamics and electromechanics of combined inductive-capacitive electric machines in case there are active electrotechnical materials of dual purpose (ferroelectromagnets) in the structure of their excitation system. At the same time, the necessary Lagrangian for combined inductive-capacitive forces was built using new technologies of interaction between inductive and capacitive subsystems. The joint solution of these equations completely determines the dynamic behavior and energy characteristics of the generalized model of combined machines of any design and in any modes of interaction of their functional elements

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2

Sobczyk, Tadeusz. "Application of higher order forms for the description of electromechanical energy converters." Archives of Electrical Engineering 60, no. 1 (March 1, 2011): 67–75. http://dx.doi.org/10.2478/v10171-011-0007-6.

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Application of higher order forms for the description of electromechanical energy convertersThe purpose of that paper is to develop of unified equations of electromechanical energy converters accounting for the magnetic non-linearity of the main magnetic circuit of a converter. The concept of applying higher order forms of winding currents for the description of the co-energy function is introduced in order to derive the structure of converter equations via mathematical analysis. Also, another concept of equivalent magnetizing currents is applied to determine the higher order forms for selected converters designs. The structure of circuital equations for converters with multiple windings has been unified by means of the introduction of matrices of dynamic and nonlinear inductances following the higher order forms of the co-energy function.

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3

Ostanin, S. Yu. "Physical Processes in Hysteresis Electromechanical Energy Converters." Bulletin of the Russian Academy of Sciences: Physics 82, no. 2 (February 2018): 221–28. http://dx.doi.org/10.3103/s1062873818020181.

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4

Shilin, A. N., M. N. Mustafa, and N. S. Kuznetsova. "LOW-FREQUENCY ELECTROMECHANICAL VIBRATION CONVERTER BASED ON LEVITATION EFFECT." Kontrol'. Diagnostika, no. 276 (June 2021): 52–57. http://dx.doi.org/10.14489/td.2021.06.pp.052-057.

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At present, one of the urgent problems in the energy and industry is to improve the reliability of the operation of various equipment. An effective method for increasing the reliability of equipment is diagnosing the state of machines and predicting their performance. Vibration control methods are widely used to diagnose rotary rotating machines. By the nature of the vibration process of the machine, it is possible to determine the degree of wear and, accordingly, the technical condition of the machines. In measuring technology for diagnostics of low-speed equipment with rotation frequencies of a unit of Hz, for example, hydroelectric generators of hydroelectric power plants, inertial electromechanical converters are used. The latest developments of such converters use an electromagnetic suspension with parametric feedback, which allows you to control the rigidity of the oscillatory system. However, for centering the moving part in electromechanical converters, flexible guides are used, which are sources of dry friction, which complicates the simulation of measurement processes and limits the sensitivity threshold to a minimum. In addition, flexible guides limit the frequency range of the converters. Currently, the most promising direction for solving this problem is the levitation effect, which allows you to completely exclude mechanical contact and, accordingly, reduce the sensitivity threshold of the transducer. From the analysis of literary sources, it follows that there are relatively few publications in this area. The proposed article provides an analysis of existing converters, on the basis of which a converter with improved characteristics, a measuring converter, is proposed. The proposed electromechanical converter has improved metrological characteristics and therefore can control and diagnose equipment in various fields of human activity. This problem is especially relevant in the hydropower industry.

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Ostanin, S. Y., M. S. Zubarev, E. N. Pavkin, P. S. Rudnik, Cui Shumei, and Wei Guo. "Studying the Physical Processes in Hysteretic Electromechanical Energy Converters." Bulletin of the Russian Academy of Sciences: Physics 84, no. 2 (February 2020): 128–31. http://dx.doi.org/10.3103/s1062873820020276.

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6

Mazurenko, L. I., V. V. Grebenikov, O. V. Dzhura, O. B. Bibik, R. V. Gamaliia, and M. O. Shykhnenko. "ELECTROMECHANICAL ENERGY CONVERTERS FOR ELECTROGENERATION AND ELECTRIC DRIVE SYSTEMS." Praci Institutu elektrodinamiki Nacionalanoi akademii nauk Ukraini 2019, no. 54 (November 18, 2019): 63–74. http://dx.doi.org/10.15407/publishing2019.54.063.

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7

Antipov, V. N., A. D. Grozov, and A. V. Ivanova. "Prospective Metallic Glasses for High-Speed Electromechanical Energy Converters." Glass Physics and Chemistry 44, no. 2 (March 2018): 156–61. http://dx.doi.org/10.1134/s1087659618020025.

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8

Baginsky and Kostsov. "Nanometer Gap in Electromechanical Converters—A Way to Achieve an Extremely High Energy Density." Micromachines 10, no. 11 (October 31, 2019): 746. http://dx.doi.org/10.3390/mi10110746.

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The analysis of electromechanical energy converters based on metal-thin film ferroelectric (with a large specific capacitance)-nanogap-moving electrode structures was performed. It was shown that the density of the energy being converted and its absolute value increase with the decreasing gap value between the surfaces of the ferroelectric and the metallic moving electrode up to nanometer values. The effects limiting the growth of this energy were established, and the limiting value of the energy density transformed in the nanogap of these structures was determined to be about 1.6 × 1010 J/m3, which is 4 orders of magnitude higher than the energy density in inductive converters. The experimental verification of this model based on the data for micromotors fabricated on these structures is given.

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9

Danilevich, Ya B., V. N. Antipov, I. Yu Kruchinina, Yu F. Khozikov, and V. V. Moskovskaya. "Promising electromechanical energy converters based on new materials and coatings." Russian Electrical Engineering 81, no. 9 (October 2010): 463–68. http://dx.doi.org/10.3103/s1068371210090014.

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10

Abdollahi, Mostafa, Jose Ignacio Candela, Andres Tarraso, Mohamed Atef Elsaharty, and Elyas Rakhshani. "Electromechanical Design of Synchronous Power Controller in Grid Integration of Renewable Power Converters to Support Dynamic Stability." Energies 14, no. 8 (April 10, 2021): 2115. http://dx.doi.org/10.3390/en14082115.

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Nowadays, modern power converters installed in renewable power plants can provide flexible electromechanical characteristics that rely on the developed control technologies such as Synchronous Power Controller (SPC). Since high renewable penetrated power grids result in a low-inertia system, this electromechanical characteristic provides support to the dynamic stability of active power and frequency in the power generation area. This goal can be achieved through the proper tuning of virtual electromechanical parameters that are embedded in the control layers of power converters. In this paper, a novel mathematical pattern and strategy have been proposed to adjust dynamic parameters in Renewable Static Synchronous Generators controlled by SPC (RSSG-SPC). A detailed dynamic modeling was obtained for a feasible design of virtual damping coefficient and virtual moment of inertia in the electrometrical control layer of RSSG-SPC’s power converters. Mathematical solutions, modal analysis outcomes, time-domain simulation results, and real-time validations of the test in IEEE-14B benchmark confirm that the proposed method is an effective procedure for the dynamic design of RSSG-SPC to provide these dynamic stability supports in grid connection.

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11

Deshchenko, Aleksei L., Andrіi M. Hetia, Vladislav E. Pliugin, and Nikolay N. Zablodskiy. "GENERALIZED METHOD OF THE ELECTROMECHANICAL CONVERTERS OF ENERGY OBJECT-ORIENTED DESIGN." ELECTRICAL AND COMPUTER SYSTEMS 22, no. 98 (May 25, 2016): 155–59. http://dx.doi.org/10.15276/eltecs.22.98.2016.27.

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12

Ismagilov, Flur, Viacheslav Vavilov, and Ildus Sayakhov. "Overview of Disk Designs of Electromechanical Energy Converters for Various Applications." Electrotechnical Systems and Complexes, no. 1(38) (2018): 68–79. http://dx.doi.org/10.18503/2311-8318-2018-1(38)-68-79.

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13

Karayan, Gamlet S., and Seyran V. Gandilyan. "Development Trends in the Construction of Combined Magnetic-Electroinduction Electromechanical Energy Converters." Vestnik MEI 2, no. 2 (2018): 65–71. http://dx.doi.org/10.24160/1993-6982-2018-2-65-71.

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14

Ismagilov, F. R., I. Kh Khairullin, E. A. Polikhach, and V. E. Vavilov. "A study of magnetic rotor systems of high-speed electromechanical energy converters." Russian Electrical Engineering 87, no. 4 (April 2016): 194–98. http://dx.doi.org/10.3103/s1068371216040052.

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15

Multon, B. "Les convertisseurs électromécaniques d'énergie : des systèmes mécatroniquesThe electromechanical energy converters: mechatronic systems." Mécanique & Industries 4, no. 5 (October 2003): 551–58. http://dx.doi.org/10.1016/j.mecind.2003.07.003.

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16

Dyatlov, V. L., and E. G. Kostsov. "Electromechanical energy converters of micromechanic devices on the basis of ferroelectric films." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 405, no. 2-3 (March 1998): 511–13. http://dx.doi.org/10.1016/s0168-9002(97)00152-6.

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17

Demenko, Andrzej, Rafal M. Wojciechowski, and Jan K. Sykulski. "2-D Versus 3-D Electromagnetic Field Modeling in Electromechanical Energy Converters." IEEE Transactions on Magnetics 50, no. 2 (February 2014): 897–900. http://dx.doi.org/10.1109/tmag.2013.2282415.

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18

Bolyukh, V. F., and I. S. Shchukin. "Influence of limiting the duration of the armature winding current on the operating indicators of a linear pulse electromechanical induction type converter." Electrical Engineering & Electromechanics, no. 6 (December 3, 2021): 3–10. http://dx.doi.org/10.20998/2074-272x.2021.6.01.

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Introduction. Linear pulse electromechanical converters of induction type (LPECIT) are used in many branches of science and technology as shock-power devices and electromechanical accelerators. In them, due to the phase shift between the excitation current in the inductor winding and the induced current in the armature winding, in addition to the initial electrodynamic forces (EDF) of repulsion, subsequent EDF of attraction also arise. As a result, the operating indicators of LPECIT are reduced. The purpose of the article is to increase the performance of linear pulse electromechanical induction-type converters when operating as a shock-power device and an electromechanical accelerator by limiting the duration of the induced current in the armature winding until its polarity changes. Methodology. To analyze the electromechanical characteristics and indicators of LPECIT, a mathematical model was used, in which the solutions of equations describing interrelated electrical, magnetic, mechanical and thermal processes are presented in a recurrent form. Results. To eliminate the EDF of attraction between the LPIECIT windings, it is proposed to limit the duration of the induced current in the armature winding before changing its polarity by connecting a rectifier diode to it. It was found that when the converter operates as a shock-power device without limiting the armature winding current, the value of the EDF pulse after reaching the maximum value decreases by the end of the operating cycle. In the presence of a diode in the armature winding, the efficiency criterion, taking into account the EDF pulse, recoil force, current and heating temperature of the inductor winding, increases. When the converter operates as an electromechanical accelerator without limiting the armature winding current, the speed and efficiency decrease, taking into account the kinetic energy and voltage of the capacitive energy storage at the end of the operating cycle. In the presence of a diode in the armature winding, the efficiency criterion increases, the temperature rise of the armature winding decreases, the value of the maximum efficiency increases, reaching 16.16 %. Originality. It has been established that due to the limitation of the duration of the armature winding current, the power indicators of the LPECIT increase when operating as a shock-power device and the speed indicators when the LPECIT operates as an electromechanical accelerator. Practical value. It was found that with the help of a rectifier diode connected to the multi-turn winding of the armature, unipolarity of the current is ensured, which leads to the elimination of the EDF of attraction and an increase in the performance of the LPECIT.

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19

Yu, Yang, and Zengqiang Mi. "Dynamic Modeling and Control of Electromechanical Coupling for Mechanical Elastic Energy Storage System." Journal of Applied Mathematics 2013 (2013): 1–11. http://dx.doi.org/10.1155/2013/603063.

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The structural scheme of mechanical elastic energy storage (MEES) system served by permanent magnet synchronous motor (PMSM) and bidirectional converters is designed. The aim of the research is to model and control the complex electromechanical system. The mechanical device of the complex system is considered as a node in generalized coordinate system, the terse nonlinear dynamic model of electromechanical coupling for the electromechanical system is constructed through Lagrange-Maxwell energy method, and the detailed deduction of the mathematical model is presented in the paper. The theory of direct feedback linearization (DFL) is applied to decouple the nonlinear dynamic model and convert the developed model from nonlinear to linear. The optimal control theory is utilized to accomplish speed tracking control for the linearized system. The simulation results in three different cases show that the proposed nonlinear dynamic model of MEES system is correct; the designed algorithm has a better control performance in contrast with the conventional PI control.

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20

Sang, Yongjie, and Bertrand Dubus. "Performance assessment of a small-size ocean wave energy harvester." MATEC Web of Conferences 283 (2019): 05006. http://dx.doi.org/10.1051/matecconf/201928305006.

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A lightweight electromechanical device is studied to harvest energy of ocean waves and supply electrical power to small-size ocean observation equipment such as sonobuoys. It is composed of a magnet fixed to the floating housing which follows the motion of the ocean surface and a moving coil connected to the case via a flexible spring. As the floating housing follows the vertical motion of water surface, a voltage is induced in the coil due to relative velocity between the coil and the magnet, and kinetic energy of the ocean wave is converted into electrical energy. Full bridge rectifying circuit and smoothing capacitor are used to convert AC voltage to constant voltage. Single degree of freedom electromechanical model of the prototype transducer (LGT-4.5 geophone) is developed and simulated with an electrical circuit software to predict energy harvesting performance. Vibration experiments are also performed with a shaker to validate transducer model and quantify output voltage. Parametric analysis is conducted to identify optimal choice of capacitance in terms of maximum stored energy and minimum charging time. This device is simple and small size relative to ocean wavelength compared to classical linear permanent magnetic generator used in offshore power plant. Its power generation per unit weight is compared to larger scale ocean energy converters.

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21

Milyaev, I. M., and S. Yu Ostanin. "Nanomagnetic Materials for the Rotors of Highspeed and Ultra-Highspeed Electromechanical Energy Converters." Bulletin of the Russian Academy of Sciences: Physics 82, no. 2 (February 2018): 214–20. http://dx.doi.org/10.3103/s106287381802017x.

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22

Atef Saleh, Al-Mashakbeh. "Improvement of the energy processes analysis method of electromechanical systems with semiconductor converters." Eastern-European Journal of Enterprise Technologies 2, no. 8 (86) (April 29, 2017): 61–68. http://dx.doi.org/10.15587/1729-4061.2017.96947.

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23

Duggirala, Rajesh, Hui Li, and Amit Lal. "High efficiency β radioisotope energy conversion using reciprocating electromechanical converters with integrated betavoltaics." Applied Physics Letters 92, no. 15 (April 14, 2008): 154104. http://dx.doi.org/10.1063/1.2912522.

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24

Kotin, D. A., and I. А. Ivanov. "Using of a single-phase synchronous multi-winding generator with permanent magnets for the power supply of an autonomous consumer." Power engineering: research, equipment, technology 24, no. 1 (May 24, 2022): 29–38. http://dx.doi.org/10.30724/1998-9903-2022-24-1-29-38.

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THE PURPOSE. Consider the existing ways of using electromechanical converters for power supply of an autonomous consumer. Conduct a comparative analysis of electromechanical converters, scenarios and conditions for their use in the power supply of an autonomous consumer. To develop a proposal to eliminate the shortcomings in existing models of synchronous generators in order to increase their controllability. To develop a mathematical description of a synchronous generator with magnetoelectric excitation from permanent magnets of a single-phase type with a simplified design as a universal example of the functioning of the entire proposed line of synchronous generators. Carry out mathematical modeling of the generator proposed for consideration in order to confirm the proposed method of regulating the generated parameters, such as current and voltage, without the need to change the generator shaft rotation speed.METHODS. When solving the problem, the method of describing an electric machine in a dq-coordinate system using a multi-winding description of the machine was used; to confirm the proposed control method, mathematical modeling with the SimInTech environment was used.RESULTS. The article describes the relevance of the topic, considers the features of the operation of various electromechanical converters for power supply of an autonomous consumer, indicates the conditions for the use of one type or another of the architects of the power supply system in conjunction with electromechanical converters. A line of synchronous generators with magnetoelectric excitation is proposed in order to improve their controllability, namely, the ability to regulate the output generated parameters.CONCLUSION. Using of the proposed synchronous generators with excitation from permanent magnets will allow for additional regulation of the generated parameters, thereby allowing either completely or partially to exclude additional semiconductor converting equipment, thereby reducing losses during the conversion of electrical energy. Moreover, it is possible to regulate the generated current and voltage discretely by two times increasing one of these values, this method of regulation depends on the design of the generator.

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25

Plakhtyna, Omelyan, Andriy Kutsyk, and Mykola Semeniuk. "Real-Time Models of Electromechanical Power Systems, Based on the Method of Average Voltages in Integration Step and Their Computer Application." Energies 13, no. 9 (May 4, 2020): 2263. http://dx.doi.org/10.3390/en13092263.

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In this work, the real-time mathematical models of electromechanical power systems with semiconductor converters based on the author’s method of the average voltages in the integration step are described. As well as the theoretical basics of the method, the algebraization algorithm of differential equations on a time quantum is described. This time quantum in the hybrid model is synchronized with the time quanta of signal samples of the physical part of the model. In the hybrid model, only algebraic equations of electromechanical power systems are present. Software and technical applications of the hybrid models of energy-generating blocks for selected thermal and nuclear power plants are described. In the process curve courses obtained and projected in this paper, the author’s hybrid models are illustrated. In the existing models, the nonlinearity of the electric machines and the semiconductor converters are taken into account. The numerical stability of the method of average voltages in integration step—in the sense of the resistance to computer calculation disturbances—is proven.

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26

Kim, K. К., and S. N. Ivanov. "Problem statement for the analysis of electromechanical systems by simulation modeling methods." Journal of Physics: Conference Series 2131, no. 2 (December 1, 2021): 022060. http://dx.doi.org/10.1088/1742-6596/2131/2/022060.

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Abstract The article presents an approach to the complex analysis of electromechanical systems using specialized packages of applied simulation programs. It is shown that the choice of research methodology is due to the complexity and mutual influence of energy processes in electromechanical converters and the absence of verified analytical solutions.The main research stages are defined, including the construction of a geometric model of the object, determination of the problem type to be solved and relevant initial and boundary conditions, justification of defining criteria, modeling of electromagnetic, thermal and hydraulic processes and their analysis. The software packages are based on the classical equations of electrodynamics, heat transfer, energy, motion and continuity. Creation of three-dimensional solid parametric model is implemented in the T-FlexCAD system. The simulation experiment was carried out with the use of SolidWorksFlowSimulation system, that allows to process the initial array of design parameters in conditions of the multiphysics problem statement. The variables were ranked using Statistica, a statistical processing and data analysis program. Simulation results of energy exchange processes at varying geometry of defining design parameters allow to establish dependence of electromechanical system output characteristics on design and dimension relations of system elements parameters and to design high-efficiency electromechanical systems on this basis.

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27

Pozo, Borja, José Ángel Araujo, Henrik Zessin, Loreto Mateu, José Ignacio Garate, and Peter Spies. "Mini Wind Harvester and a Low Power Three-Phase AC/DC Converter to Power IoT Devices: Analysis, Simulation, Test and Design." Applied Sciences 10, no. 18 (September 11, 2020): 6347. http://dx.doi.org/10.3390/app10186347.

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Wind energy harvesting is a widespread mature technology employed to collect energy, but it is also suitable, and not yet fully exploited at small scale, for powering low power electronic systems such as Internet of Things (IoT) systems like structural health monitoring, on-line sensors, predictive maintenance, manufacturing processes and surveillance. The present work introduces a three-phase mini wind energy harvester and an Alternate Current/Direct Current (AC/DC) converter. The research analyzes in depth a wind harvester’s operation principles in order to extract its characteristic parameters. It also proposes an equivalent electromechanical model of the harvester, and its accuracy has been verified with prototype performance results. Moreover, unlike most of the converters which use two steps for AC/DC signal conditioning—a rectifier stage and a DC/DC regulator—this work proposes a single stage converter to increase the system efficiency and, consequently, improve the energy transfer. Moreover, the most suitable AC/DC converter architecture was chosen and optimized for the best performance taking into account: the target power, efficiency, voltage levels, operation frequency, duty cycle and load required to implement the aforementioned converter.

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28

Vavilov, V. E. "Selecting the Rotor’s Magnetic System in Electromechanical Energy Converters with Highly Coercive Permanent Magnets." Russian Engineering Research 38, no. 4 (April 2018): 256–59. http://dx.doi.org/10.3103/s1068798x18040226.

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29

Bolyukh, V. F., S. V. Oleksenko, and I. S. Shchukin. "COMPARATIVE ANALYSIS OF LINEAR PULSE ELECTROMECHANICAL CONVERTERS ELECTROMAGNETIC AND INDUCTION TYPES." Tekhnichna Elektrodynamika 2016, no. 5 (September 6, 2016): 46–48. http://dx.doi.org/10.15407/techned2016.05.046.

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30

Bolyukh, V. F., A. A. Kocherga, and I. S. Shchukin. "COMPARATIVE ANALYSIS OF CONSTRUCTIVE TYPES OF COMBINED LINEAR PULSE ELECTROMECHANICAL CONVERTERS." Tekhnichna Elektrodynamika 2018, no. 4 (May 15, 2018): 84–88. http://dx.doi.org/10.15407/techned2018.04.084.

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31

Ostanin, S. Yu, V. B. Nikanorov, M. S. Zubarev, T. S. Latypov, E. N. Pavkin, Cui Shumei, and Wei Guo. "Studying an Electromagnetic Field and Processes in Hysteresis Electromechanical Energy Converters with a Cone Structure." Bulletin of the Russian Academy of Sciences: Physics 84, no. 5 (May 2020): 619–22. http://dx.doi.org/10.3103/s1062873820050226.

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Бурков, А. Ф., В. В. Миханошин, and В. Х. Нгуен. "Электрохимические источники энергии для судовых комбинированных гребных электрических установок." ТЕНДЕНЦИИ РАЗВИТИЯ НАУКИ И ОБРАЗОВАНИЯ 70, no. 2 (2021): 97–100. http://dx.doi.org/10.18411/lj-02-2021-63.

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At the present stage of development of marine propulsion systems for coastal navigation vessels, it seems appropriate to use combined power installations with various scientific and technical solutions. The primary sources of such installations, along with electromechanical converters, include electrochemical static energy sources – batteries. The specific operating conditions of such sources in ship conditions limit their list for combined installations. The article discusses the varieties of static energy sources, their advantages and disadvantages, which allow us to conclude that it is economically feasible to use them in combined electric power installations.

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Гандилян, С. В., and Д. В. Гандилян. "Научно-технические основы применения наноструктурного материаловедения и наноэлектроники в системах электромеханических преобразователей энергии специального назначения." Журнал технической физики 89, no. 7 (2019): 975. http://dx.doi.org/10.21883/jtf.2019.07.47784.339-18.

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The article presents the modern state of an absolutely new direction in development of science – the microsystem electromechanics and analyzes a wide spectra of its practical applica-tions and prospects. Two main ways for creation of the micro- and nano-electromechanical energy converters as the basic elements of the microsystem electromechanics are discussed in detail: «from top to bottom» and «from bottom to top». The article also describes the basic technological methods for designing of the main func-tional elements of the microsystem electromechanics, and characterizes the areas of their appli-cation in the traditional and new technologies (in the information and computer technologies, medicine, space and missile-artillery systems, etc.). The research considers some of the key issues (topical points, nodal points) of the gener-alized (combined) physical and mathematical modeling of microminiature and nanoelectome-chanical systems (MEMS and NEMS). A new generalized approach is proposed to the research of the dynamic and energetic performance of MEMS and NEMS, as complex dynamic systems with binarily conjugated sub-systems. The presented theoretical principles and models are used as the basis for research of the electrophysical characteristics of the biological nanostructures.

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Tatevosyan, A. A. "Optimization of parameters of quiet permanent magnet synchronous motor for linear drive of long-stroke single-stage piston compressor." Power engineering: research, equipment, technology 23, no. 6 (April 1, 2022): 148–56. http://dx.doi.org/10.30724/1998-9903-2021-23-6-148-156.

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The article proposes a solution to the problem of optimizing the magnetic system design of a low-speed synchronous motor with permanent magnets (PMSM) as a part of a linear drive of a single-stage piston compressor that is promising for use in compressor construction for a given law of motion of the moving part. The maximum efficiency of the electromechanical converter is used as an optimality criterion. By solving the optimization problem, the relationship between the design parameters and the energy performance of the PMSM was established in an analytical form. The substantiation of the maximum possible efficiency of the PMSM for the sinusoidal and non-sinusoidal laws of motion of the inductor is given.PURPOSE: Obtaining a solution to the problem of optimizing the magnetic system design of a low-speed PMSM as a part of a linear drive of a single-stage reciprocating compressor for a given law of motion of the moving part that meets the criterion of maximum efficiency of an electromechanical converter.METHODS: The methods of the theory of electromechanical energy converters, theoretical electrical engineering, mathematical modeling, optimization methods, variational, differential and integral calculus, as well as experimental methods are used.RESULTS: The results of an experimental study of the developed prototype of a low-speed SDPM as a part of a linear drive of a long-stroke single-stage reciprocating compressor are presented.CONCLUSION: The highest efficiency of the PMSM is achieved when the current in the armature winding changes with time in direct proportion to the speed of the inductor. To ensure this mode, it is proposed to use an open-source frequency converter, which makes it possible to implement the time dependence of the current in the armature winding in accordance with the given law of motion of the moving part. The PMSM is controlled by a frequency converter based on structural models created in the MexBios environment.

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Barrientos, Gabriel, Giacomo Clementi, Carlo Trigona, Merieme Ouhabaz, Ludovic Gauthier-Manuel, Djaffar Belharet, Samuel Margueron, Ausrine Bartasyte, Graziella Malandrino, and Salvatore Baglio. "Lead-Free LiNbO3 Thick Film MEMS Kinetic Cantilever Beam Sensor/Energy Harvester." Sensors 22, no. 2 (January 12, 2022): 559. http://dx.doi.org/10.3390/s22020559.

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In this paper, we present integrated lead-free energy converters based on a suitable MEMS fabrication process with an embedded layer of LiNbO3. The fabrication technology has been developed to realize micromachined self-generating transducers to convert kinetic energy into electrical energy. The process proposed presents several interesting features with the possibility of realizing smaller scale devices, integrated systems, miniaturized mechanical and electromechanical sensors, and transducers with an active layer used as the main conversion element. When the system is fabricated in the typical cantilever configuration, it can produce a peak-to-peak open-circuit output voltage of 0.208 V, due to flexural deformation, and a power density of 1.9 nW·mm−3·g−2 at resonance, with values of acceleration and frequency of 2.4 g and 4096 Hz, respectively. The electromechanical transduction capability is exploited for sensing and power generation/energy harvesting applications. Theoretical considerations, simulations, numerical analyses, and experiments are presented to show the proposed LiNbO3-based MEMS fabrication process suitability. This paper presents substantial contributions to the state-of-the-art, proposing an integral solution regarding the design, modelling, simulation, realization, and characterization of a novel transducer.

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Belyaev, D. V., A. M. Veinger, G. B. Lazarev, A. N. Novakovskii, and A. T. Sultanov. "Semiconductor converters of electric energy electromagnetic and electromechanical processes in an electric drive under frequency converter parallel operation to induction motor." Russian Electrical Engineering 78, no. 5 (May 2007): 236–42. http://dx.doi.org/10.3103/s1068371207050033.

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Savosteenko, Nikita, Kseniya Semenova, Dmitry Khriukin, and Nikita Maksimov. "OPTIMISATION OF NEW TYPES OF ELECTROMECHANICAL CONVERTERS FOR MECHANISMS WITH FAN-TYPE LOADS." Bulletin of the South Ural State University series "Power Engineering" 22, no. 1 (March 2022): 89–96. http://dx.doi.org/10.14529/power220110.

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Abstract. The article considers the main requirements for pumping stations, in particular, for methods of regula¬ting the water supply at the first lift pump unit. A description of the pumping unit and equipment is provided. The artic¬le pro-vides a comparison of the types of the main drive units of pumping stations. It also provides a rationale for the choice of electric drive system between classical asynchronous and synchronous electric drives, as well as a system with a field regulated reluctance machine (FRRM) with a comparison of energy indicators. A description and substantia-tion of the control system work are also given. The articles provide the technical characteristics of the motor parameters and the daily flow rate of the station fluid. The optimal method for regulating the power supply system was chosen based on research. A mathematical model of the device which implements the chosen control method is presented. The results of mathematical modeling are presented in the graphs. A graph of the transient process is given in the case of changing speeds depending on the required fluid supply. Conclusions about the efficiency of the system are drawn and further action plans are outlined.

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Menzhinski, A. B. "Coordination of forces of mechanical and electric subsystems of power plant with free piston engine and electric generator of reciprocating type." Proceedings of the National Academy of Sciences of Belarus, Physical-Technical Series 64, no. 3 (October 6, 2019): 304–20. http://dx.doi.org/10.29235/1561-8358-2019-64-3-304-320.

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Autonomous power supply system of modern mobile special-purpose equipment requires the development of electromechanical energy converters with high energy and minimum weight- and size indicators. In industrialized countries, the system “free piston engine – reciprocating electric generator of transverse type” is considered as a promising power plant. The main feature of this kind of power plant is the lack of crank mechanism in the engine design. This allows: increasing the efficiency of the engine up to 50–60 % and overall power by 2.5–3 times while reducing the specific gravity and metal consumption compared to traditional engines; reducing the specific fuel consumption of the engine up to 30 %; increasing the resource to overhaul by 30–50 thousand hours; implementing a modular structure. The main drawbacks of this kind of power plant are high probability of failure when passing the ignition of the working mixture and instability of work with significant load fluctuations. The noted drawbacks are due to the inconsistency of the forces of the electrical and mechanical subsystems of the power plant throughout the operating cycle. The solution for the problem of matching the forces of the electrical and mechanical subsystems of the power plant in the extreme positions of the piston group of the free piston engine is of particular complexity. In this regard, a method for solving the problem of matching the forces of the mechanical and electrical subsystems of the power plant with a free-piston engine throughout the operating cycle was developed, characterized by the use of an electromechanical reciprocating energy converter with transverse- and longitudinal nonlinear changes in the magnetic flux in the electrical subsystem. Coordination of the forces of mechanical and electrical subsystems of the power plant on the entire operating cycle makes it possible to fulfill the conditions of continuous electromechanical energy conversion at all work cycle and to reduce the specific gravity of the electrical subsystems of the plant while improving efficiency.

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Придальний Б.І. "MECHATRONIC CLAMPING MECHANISM WITH ELECTRO-HYDRAULIC ACTUATOR FOR MACHINE SPINDLE UNITS." Перспективні технології та прилади, no. 18 (July 7, 2021): 124–28. http://dx.doi.org/10.36910/6775-2313-5352-2021-18-18.

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The design of the clamping mechanism for fixing workpieces and tools in the spindle assemblies of machines that is equipped with an additional subsystem to provide the possibility of programmable settings to the required clamping force is presented. The electronic unit and electromechanical energy converters provide the possibility of reconfiguration by reprogramming the clamping mechanism according to the different tasks comparatively easily. The obtained results help to expand the functionality of clamping mechanisms, and consequently the functionality of machine tools and their technological flexibility.

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Burkov, A. F., V. N. Yurin, and V. R. Avetisyan. "STUDIES OF POSSIBILITIES OF ENERGY EFFICIENCY OF ASYNCRONOUS MOTORS IMPROVEMENT." Proceedings of the higher educational institutions. ENERGY SECTOR PROBLEMS 20, no. 9-10 (January 24, 2019): 92–100. http://dx.doi.org/10.30724/1998-9903-2018-20-9-10-92-100.

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Modern society is inseparably linked with electrical energy utilization in many areas of life and activities. Fleet and its transport infrastructure equipped with an electric equipment of various degree of complexity is not an exception. Currently, hundreds of thousands of commercial, fishing, passenger and other ships are operational and perform their functions. Technical perfection of their production mechanisms and technological processes being implemented are largely determined by the perfection of the actuator and degree of automation. The advantages of electrical energy, creation of advanced enough electromechanical converters and the development of control systems has led to the introduction of automated electric drives, the main part of which are electric motors. The article presents some results of the performed researches on widely used three-phase asynchronous motors, with the aim of improving their energy efficiency.

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Tavani, Hadi Molaei. "River's Meander Energy Conservation as a Renewable Energy Recourse, a Mathematical and Technology Status Review." Advanced Materials Research 433-440 (January 2012): 1132–36. http://dx.doi.org/10.4028/www.scientific.net/amr.433-440.1132.

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The growing demand for electrical energy is one of the most important subjects today. Renewable energies give a good perspective to be an alternative to fossil and nuclear-fueled power plants, in order to meet growing demand for electrical energy. River current energy conversion systems are electromechanical energy converters that convert kinetic energy of river water into other usable forms of energy. However, the potentials of this technology as an effective and renewable source of alternative energy have not yet been explored to a great extent. In this research investigated the use of computational fluid dynamics in predicting hydrokinetic energy, and effective parameters of river's meander to generated hydro electrical energy. The survey shows that in this case study can generate justifiable energy in meander and it show that can use the meander of rivers are one of the renewable source. This article may serve as a coherent literature survey or technology review that would provide better understanding of the subjacent issues and possibly rejuvenate research interest in this immensely potential field of energy engineering

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Hernández-Guzmán, Victor Manuel, Ramón Silva-Ortigoza, and Magdalena Marciano-Melchor. "Position Control of a Maglev System Fed by a DC/DC Buck Power Electronic Converter." Complexity 2020 (May 31, 2020): 1–16. http://dx.doi.org/10.1155/2020/8236060.

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In this paper, we solve the problem of position regulation in a magnetic levitation system that is fed by a DC/DC Buck power electronic converter as a power amplifier. We present a formal asymptotic stability proof. Although this result is local, the merit of our proposal relies on the fact that this is the first time that such a control problem is solved for a magnetic levitation system, a nonlinear electromechanical plant. In this respect, we stress that most works in the literature on control of electromechanical systems actuated by power electronic converters are devoted to control brushed DC motors which are well known to have a linear model. Furthermore, despite the plant that we control in the present paper is complex, our control law is simple. It is composed by four nested loops driven by one sliding mode controller, two proportional-integral controllers, and a nonlinear proportional-integral-derivative position controller. Each one of these loops is devoted to control each one of the subsystems that compose the plant: electric current through the converter inductor, voltage at the converter capacitor, electric current through the electromagnet, and position of the ball. Thus, our proposal is consistent with the simple and intuitive idea of controlling each subsystem of the plant in order to render robust the control scheme. We stress that such a solution is complicated to derive using other control approaches such as differential flatness or backstepping. In this respect, our proposal relies on a novel passivity-based approach which, by exploiting the natural energy exchange between the mechanical and electrical dynamics, renders possible the design of a control scheme with the above cited features.

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Machů, Zdeněk, Zdeněk Majer, Oldřich Ševeček, Kateřina Štegnerová, and Zdeněk Hadaš. "Electro-mechanical analysis of a multilayer piezoelectric cantilever energy harvester upon harmonic vibrations." MATEC Web of Conferences 210 (2018): 02053. http://dx.doi.org/10.1051/matecconf/201821002053.

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This paper addresses an important issue of the individual layer thickness influence in a multilayer piezo composite on electro-mechanical energy conversion. The use of energy harvesting systems seems to be very promising for applications such as ultra-low power electronics, sensors and wireless communication. The energy converters are often disabled due to a failure of the piezo layer caused by an excessive deformation/stresses occurring upon the operation. It is thus desirable to increase both reliability and efficiency of the electromechanical conversion as compared to standard concepts. The proposed model of the piezoelectric vibration energy harvester is based on a multilayer beam design with active piezo and protective ceramic layers. This paper presents results of a comparative study of an analytical and numerical approach used for the electro-mechanical simulations of the multilayer energy harvesting systems. Development of the functional analytical model is crucial for the further optimization of new (smart material based) energy harvesting systems, since it provides much faster response than the numerical model.

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Bolyukh, V. F., Yu V. Kashanskyi, and I. S. Shchukin. "COMPARATIVE ANALYSIS OF POWER AND SPEED INDICATORS LINEAR PULSE ELECTROMECHANICAL CONVERTERS ELECTRODYNAMIC AND INDUCTION TYPES." Tekhnichna Elektrodynamika 2019, no. 6 (October 25, 2019): 35–42. http://dx.doi.org/10.15407/techned2019.06.035.

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Milyaev, I. M., S. Y. Ostanin, Cui Shumei, and Wei Guo. "Formation of Physical Properties in Magnetic Materials of the Rotors of Highspeed and Ultra-Highspeed Electromechanical Energy Converters." Bulletin of the Russian Academy of Sciences: Physics 82, no. 8 (August 2018): 924–27. http://dx.doi.org/10.3103/s1062873818080300.

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Nikanorov, V. B., S. Y. Ostanin, I. A. Smorodin, I. M. Milyaev, Cui Shumei, and Wei Guo. "Investigating the Nonlinear Effects of Magnetization Reversal and Eddy Currents in the Rotors of Hysteretic Electromechanical Energy Converters." Bulletin of the Russian Academy of Sciences: Physics 84, no. 2 (February 2020): 125–27. http://dx.doi.org/10.3103/s1062873820020252.

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Ismagilov, Flur, Irek Khairullin, Vajcheslav Vavilov, Ruslan Karimov, and Anton Gorbunov. "Features of Designing High-Rpm Electromechanical Energy Converters Operating in Short-Term Mode with High-Coercivity Permanent Magnets." International Review of Electrical Engineering (IREE) 11, no. 1 (February 29, 2016): 28. http://dx.doi.org/10.15866/iree.v11i1.8131.

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48

Dineva, Adrienn, Amir Mosavi, Sina Faizollahzadeh Ardabili, Istvan Vajda, Shahaboddin Shamshirband, Timon Rabczuk, and Kwok-Wing Chau. "Review of Soft Computing Models in Design and Control of Rotating Electrical Machines." Energies 12, no. 6 (March 18, 2019): 1049. http://dx.doi.org/10.3390/en12061049.

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Rotating electrical machines are electromechanical energy converters with a fundamental impact on the production and conversion of energy. Novelty and advancement in the control and high-performance design of these machines are of interest in energy management. Soft computing methods are known as the essential tools that significantly improve the performance of rotating electrical machines in both aspects of control and design. From this perspective, a wide range of energy conversion systems such as generators, high-performance electric engines, and electric vehicles, are highly reliant on the advancement of soft computing techniques used in rotating electrical machines. This article presents the-state-of-the-art of soft computing techniques and their applications, which have greatly influenced the progression of this significant realm of energy. Through a novel taxonomy of systems and applications, the most critical advancements in the field are reviewed for providing an insight into the future of control and design of rotating electrical machines.

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Baida, Evgen, and Olena Korol. "Comparative analysis of electromechanical processes in induction-dynamic converter with mobile inductor and two disks." Bulletin of NTU "KhPI". Series: Problems of Electrical Machines and Apparatus Perfection. The Theory and Practice, no. 1 (5) (May 28, 2021): 3–7. http://dx.doi.org/10.20998/2079-3944.2021.1.01.

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General description of the research topic. The article presents a comprehensive study of traditional induction-dynamic mechanisms (with one disk and a fixed coil) and multi-core induction-dynamic mechanisms (linear pulse induction converters) with a movable coil and two disks. Actuality of the topic. Such induction-dynamic mechanisms are widely used in various fields, in particular, in electrical apparatus industry, where speed is one of the most important characteristics. The purpose of the article is a comparative analysis and refinement of the characteristics of the traditional induction-dynamic system with one disk and a fixed coil and multi-core one with a movable coil and two disks. Research method, scientific novelty. The calculations are based on the solution of the equations of the electromagnetic field and the equations for the electric circuit of the coil. Practical significance and main conclusions. During the calculations, the values of electromagnetic force and force impulse acting on the moving disk, energy losses in the system and electromagnetic energy of the system are determined. The results of the study are presented in the form of graphs, namely, the coil current and total magnetic energy for a traditional induction-dynamic mechanism with one disk and for multi-core one with two disks, Joule losses in a fixed coil and disk (in a traditional system) and in a moving coil and two disks (in a multi-core system), force impulse and electromagnetic force of a moving coil (in a multi-core system) and a moving disk (in a traditional and a multi-core system) total impulse of the moving parts of the induction-dynamic mechanism with a multi-core system, as well as the electromagnetic force and the total force acting on the moving parts of the induction-dynamic mechanism with a multi-core system. It is shown that the induction-dynamic mechanism with two disks is less effective in terms of electromagnetic force, impulse and electromagnetic energy than the induction-dynamic mechanism of the traditional layout.

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Menzhinsky, A. B., and A. N. Malashin. "METHODS OF STRUCTURAL AND PARAMETRIC SYNTHESIS OF COMBINED GENERATOR OF RECIPROCATING POWER PLANTS FOR ROBOTIC SYSTEMS ON THE BASIS OF A FREE PISTON ENGINE." Proceedings of the National Academy of Sciences of Belarus, Physical-Technical Series 63, no. 2 (July 3, 2018): 229–43. http://dx.doi.org/10.29235/1561-8358-2018-63-2-229-243.

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Power supply system of advanced robotic systems requires the development of electromechanical energy converters with high energy and minimum weight and overall dimensions. In this regard, a free piston engine with an electric generator is considered as a promising plant.Interest in the study of power plants based on free piston engines is caused by several advantages compared to conventional internal combustion engines with a crank mechanism: relative simplicity of the design, 40 % fewer elements, which reduces the overall capacity, specific gravity and metal content of the free piston engine in 2.5–3 times. In addition, the fuel consumption is 30 % lower. Also an important design advantage of power plants based on free piston engines is a relatively simple modular construction. Reciprocating electric generators with transverse increment of the magnetic flux are the most commonly used ones in currently developed power plants based on free piston engines of foreign countries (USA, Russia, Germany, China, UK, Japan, Sweden, Israel, etc.) as the electrical AC machines. The main disadvantage of this type of generators are the absence of coordination of electrical and mechanical subsystems of the power plant at the extreme points of the operating cycle, which limits the efficiency of the free piston engine and reduces the reliability of the power plant.To solve this problem it is proposed to use Electromechanical energy Converter with transverse and longitudinal increment of the magnetic flux (combo generator). However, currently there is no scientifically valid method of synthesis of this type of generator. To address this problem we have developed the methodology of structural and parametric synthesis of combined generator of the reciprocating type for a plant on the basis of free piston engine, which is based on the use of the specific gravity of the combined generator as the objective function. It allows synthesizing electric machine of the reciprocating type with the specified efficiency and minimum specific mass.

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