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Articoli di riviste sul tema "SYNCHRONUS MACHINE"

Autore: Grafiati

Pubblicato: 11 settembre 2023

Ultima modifica: 25 luglio 2025

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1

Palka, Ryszard, Kamil Cierzniewski, Marcin Wardach, and Pawel Prajzendanc. "Research on Innovative Hybrid Excited Synchronous Machine." Energies 16, no. 18 (2023): 6600. http://dx.doi.org/10.3390/en16186600.

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This paper presents research on an unconventional electric machine. It is a hybrid excited machine which includes the features of three types of machines: the Permanent Magnet Synchronous Machine, the Synchronous Machine, and the Synchronous Reluctance Machine. Therefore, a broad literature review related to the above-mentioned types of machines was constructed. The well-known Permanent Magnet assisted Synchronous Reluctance Machine joins features of Permanent Magnet Synchronous Machine and Synchronous Reluctance Machine topologies. This paper shows the results of the innovative design of the

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2

Podgornovs, Andrejs, and Anton Sipovics. "Electromechanical Battery, Electrical Machines Mass Functions Analysis." Scientific Journal of Riga Technical University. Power and Electrical Engineering 28, no. 1 (2011): 53–57. http://dx.doi.org/10.2478/v10144-011-0009-7.

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Electromechanical Battery, Electrical Machines Mass Functions AnalysisIn this paper different types of electrical machines in electromechanical battery, were described. The most known manufactured battery data is composed. Three types of machines: synchronous machine with salient poles and electromagnetic excitation, with permanent magnets on rotor and reluctance synchronous machine were analyzed. For all types of machines, mass is function of general geometrical size of magnetic system and machines electrical power.

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Juszczak, Ewa Napieralska, Daniel Roger, Krzysztof Komeza, Marcin Lefik, and Piotr Napieralski. "Architecture choices for high-temperature synchronous machines." Open Physics 18, no. 1 (2020): 683–700. http://dx.doi.org/10.1515/phys-2020-0154.

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AbstractThe article proposes an analysis of the possible architectures of synchronous machines with an ability to operate at high temperatures of over 200°C in their environment. Two machine principles have been considered: the permanent magnet synchronous machine and the synchronous reluctance machine. The numerical analyses are carried out with 3D-coupled electromagnetic-fluid-thermal models; the electromagnetic one provides the local losses that give the input data to the coupled thermal-fluid analysis model for computing the temperatures inside the machines. The simulation results are used

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4

Lee, Oliver Mitchell, and Mohammadali Abbasian. "Reducing Rare-Earth Magnet Reliance in Modern Traction Electric Machines." Energies 18, no. 9 (2025): 2274. https://doi.org/10.3390/en18092274.

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Currently, electric machines predominantly rely on costly rare-earth NdFeB magnets, which pose both economic and environmental challenges due to rising demand. This research explores recent advancements in machine topologies and magnetic materials to identify and assess promising solutions to this issue. The study investigates two alternative machine topologies to the conventional permanent magnet synchronous machine (PMSM): the permanent magnet-assisted synchronous reluctance machine (PMaSynRM), which reduces magnet usage, and the wound-field synchronous machine (WFSM), which eliminates magne

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5

Santhosh, G., K. Vani, B. Srikanth, and P. Pravalika. "Mitigation of Voltage Flicker at Smart Loads with Renewable (Wind) Energy in Distribution Systems." International Journal of Engineering and Advanced Technology (IJEAT) 9, no. 5 (2020): 607–12. https://doi.org/10.35940/ijeat.D7499.069520.

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This activity handles displaying and furthermore control of astute tons for request reaction organization under improved invasion of reasonable power ages (RPGs) at desperate degree. The raised penetration of RPGs, particularly twist control at particular degree, is defined with harming impact on voltage impact. An irreversible magnet synchronous machine based volatile rate wind control transformation structure is planned with a breeze rate considering stochastic and furthermore routine effects. The recreated wind control directly into the flow structure produces stochastic and additionally co

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6

Tang, Min, Shao Hui Zhang, Yan Fei Shen, and Yong Li. "Impact of Wind Penetration Level on System Dynamic Performance." Applied Mechanics and Materials 459 (October 2013): 189–94. http://dx.doi.org/10.4028/www.scientific.net/amm.459.189.

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Power system dynamic problem is the study which dealing with synchronism among interconnected machines. In any scenario all interconnected synchronous machines should remain in synchronism if the system is stable; i.e., they should all remain operating in parallel and at the same speed. Wind penetration level is affecting power system stability performance. This may result in oscillatory, but if the system is stable, these oscillations will be damped towards to stable operating condition. If the system is unstable, these oscillations will not be damped out and causes damage to synchronous gene

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7

Sellam, Abdelkrim, Boubakeur Dehiba, Mohamed B. Benabdallah, et al. "Vectorial Formalism of Polyphase Synchronous Machine With Permanents Magnets." Aceh International Journal of Science and Technology 2, no. 1 (2013): 1–7. http://dx.doi.org/10.13170/aijst.2.1.482.

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Abstract- This paper presents a mathematical model that transforms the real machine to fictitious machines and our goal is to simulate these and see the behavior of these machines in load. The polyphase machines are developed mainly in the field of variable speed drives of high power because increasing the number of phases on the one hand allows to reduce the dimensions of the components in power modulators energy and secondly to improve the operating safety. By a vector approach (vector space), it is possible to find a set of single-phase machine and / or two-phase fictitious equivalent to po

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8

Zaghdoud, Bellal, and Abdallah Saadoun. "Inductances Calculation of Permanent Magnet Synchronous Machine." International Journal of Computer and Electrical Engineering 6, no. 3 (2014): 267–70. http://dx.doi.org/10.7763/ijcee.2014.v6.836.

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9

Zhang, Zhiwei, and Libing Zhou. "Design And Rotor Geometry Analysis Of Permanent Magnet–Assisted Synchronous Reluctance Machines Using Ferrite Magnet." Journal of Electrical Engineering 66, no. 6 (2015): 311–16. http://dx.doi.org/10.2478/jee-2015-0051.

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Abstract Various electric machines can be the candidate for electric vehicles applications, including induction machines, permanent magnet synchronous machines, switched reluctance machines, etc. Another class of machine, which has been relatively ignored, is synchronous reluctance machines. In order to enhance and increase torque density of pure synchronous reluctance machines, the low cost permanent magnet can be inserted into rotor lamination to contribute torque production, which is so-called permanent magnet-assisted synchronous reluctance machines. This paper presents the design and roto

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10

S, E. Abonyi. "A New Hybrid Synchronous Reluctance Machine Capable of Ultra High Output Power." International Journal of Trend in Scientific Research and Development 2, no. 6 (2018): 884–94. https://doi.org/10.31142/ijtsrd18643.

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A new hybrid synchronous reluctance machine capable of ultra high Xd Xq ratio output power has been studied. A d q model voltage and flux linkage of the hybrid synchronous reluctance machine has been idealized and developed. Also the impedance and current loci from steady state analysis of the machine was obtained. The effect of capacitor loading in the auxiliary winding was investigated. The power factor and torque developed in the hybrid synchronous reluctance machine was compared with the conventional synchronous reluctance machine. The hybridized synchronous reluctance machine improved the

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11

Martinez, Maria, David Reigosa, Daniel Fernandez, and Fernando Briz. "Comparative Analysis of High Frequency Signal Injection Based Torque Estimation Methods for SPMSM, IPMSM and SynRM." Energies 13, no. 3 (2020): 592. http://dx.doi.org/10.3390/en13030592.

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Torque estimation in permanent magnet synchronous machines and synchronous reluctance machines is required in many applications. Torque produced by a permanent magnet synchronous machine depends on the permanent magnets’ flux and d q -axes inductances, whereas torque in synchronous reluctance machines depends on the d q -axes inductances. Consequently, precise knowledge of these parameters is required for proper torque estimation. The use of high frequency signal both for permanent magnets’ flux and d q -axes inductances estimation has been recently shown to be a viable option. This paper revi

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12

Petrov, Timur, and Alfred Safin. "Theoretical aspects of optimization synchronous machine rotors." E3S Web of Conferences 178 (2020): 01049. http://dx.doi.org/10.1051/e3sconf/202017801049.

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Permanent magnet synchronous electric machines are increasingly used in various drive technical complexes (oil industry, small generation, aviation industry, etc.). The presented optimization allows you to increase the energy performance of a synchronous machine without increasing the overall dimensions. Permanent magnet synchronous motors have become much more commonly operated in various drive technical complexes. For each drive complex, it is necessary to fulfil the requirements for the developed torque, cooling conditions and strength characteristics. The distribution of materials (topolog

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13

Georgescu, Horia. "A New Approach to Communicating X-Machines Systems." JUCS - Journal of Universal Computer Science 6, no. (5) (2000): 490–502. https://doi.org/10.3217/jucs-006-05-0490.

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This paper presents a new model for the specification of communicating X-machine systems (CXMS). In previous papers, systems of X-machines have been implemented in two ways: using an unique X-machine which simulates the concurrent behaviour of several processes [1], or using several X-machines which communicate through asynchronous channels [2]. This article introduces an X-machine system for which the communication between components is done through synchronous channels. The model supposes that each X-machine has a local memory, an input and an output tape. The X-machines act simultaneously.

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14

Irisboyev, Farkhod. "TYPES AND STRUCTURE OF SYNCHRONOUS MACHINES." MODERN SCIENCE AND RESEARCH 3, no. 2 (2024): 48–51. https://doi.org/10.5281/zenodo.10628173.

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<em>Depending on the purpose and dimensions of the machine, the design of the stator of a synchronous machine can be different. For example, in powerful multi-pole machines, when the outer diameter of the stator magnetic circuit is 900 mm or more, the magnetic circuit plates are made of separate segments and, after assembly, form a magnetic circuit cylinder. For ease of transportation and installation, stator housings of large-sized machines are manufactured in prefabricated form.</em>

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15

Domracheva, Yulia, and Sergey Loginov. "Simulation Technique of Synchronous Reluctance Bearingless Machine." Environment. Technology. Resources. Proceedings of the International Scientific and Practical Conference 2 (August 8, 2015): 101. http://dx.doi.org/10.17770/etr2013vol2.845.

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Magnetically levitated rotor electric machines can be used under such conditions wherein application of conventional bearings is impossible because of presence of lubrication. Active magnetic bearings application requires rotor length increase and stalling speed is decreased. Bearingless electric machines are the next step up of the magnetically levitated rotor machines. A bearingless electric machine module generates electromagnetic torque and radial forces. This feature makes possible to decrease the rotor length on retention of capacity of torque and forces. It is necessary to verify a cont

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16

Pirmatov, N. B., A. M. Egamov, C. M. Giyasov, et al. "Some aspects of comparing the operational properties of synchronous machines with a conventional and two mutually shifted excitation windings." E3S Web of Conferences 401 (2023): 03056. http://dx.doi.org/10.1051/e3sconf/202340103056.

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A comparative analysis of the operational properties of traditional and two-valve synchronous machines with a rotor, having a reciprocating axis, excited from independent regulated DC sources, is generalized. On the basis of research, it has been shown that the use of a control quadrature excitation winding significantly improves the performance of synchronous machines at low costs for its manufacture. The authors have shown a significant improvement in the performance of machines with different operating modes based on the results of theoretical and experimental studies carried out on synchro

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17

Mustafayev, Rauf, Nurali Yusifbayli, and Laman Hasanova. "Matrix structure of unified mathematical model of electric AC machines at control." E3S Web of Conferences 209 (2020): 02023. http://dx.doi.org/10.1051/e3sconf/202020902023.

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The matrix structure of the equations of a generalized electric alternating current machine is proposed, which, based on the Parke equations, is written in the coordinate axes of the machines rotating with the rotor speed. In the matrix structure, the column matrices of the derivatives of the stator, excitation and rotor windings are equal to the product of diagonal matrices consisting of the machine parameters and the column matrices of the flux links themselves and the sum of the matrix columns of the control parameters which are the matrix columns of the stator voltage, excitation voltage,

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18

Khai, Mykhailo, Vasyl Khai, and Bohdan Kharchyshyn. "Mathematical model for calculating steady-state conditions and static characteristics of salient-pole synchronous machines." Bulletin of NTU "KhPI". Series: Problems of Electrical Machines and Apparatus Perfection. The Theory and Practice, no. 1 (11) (July 23, 2024): 52–59. http://dx.doi.org/10.20998/2079-3944.2024.1.10.

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Salient-pole synchronous machines occupy a paramount position in both the generation and consumption of electrical energy. Recent achievements in the design, manufacturing, and operation of salient-pole synchronous machines are the result of successful advancements in the fields of electromechanical engineering technology, semiconductor technology, and mathematical modeling. To calculate the nominal steady-state operation of salient-pole synchronous machines and their static characteristics (no-load, angular, V-shaped, regulatory, and external), a mathematical model has been developed. Its com

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19

Pliuhin, Vladyslav, Yevgen Tsegelnyk, and Oleksii Slovikovskyi. "Digital Twins of Different Types Electrical Machines." Lighting Engineering & Power Engineering 63, no. 2 (2024): 35–45. https://doi.org/10.33042/2079-424x.2024.63.2.01.

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This paper aims to address key considerations in building digital twins for some of the most commonly used electrical machines, including the Induction Machine with a Squirrel Cage Rotor, DC Machine with Linear Electrical Excitation, DC Machine with Permanent Excitation, Synchronous Machine with Electrical Excitation and Damper, and Synchronous Machine with Permanent Excitation and Damper. These machines, critical across various industries, require precise modeling and real-time monitoring to optimize their performance and lifespan. The development of digital twins for these machines involves

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20

ÖZÜPAK, Yıldırım. "Design and Analysis of a Synchronous Generator Using Finite Element Method Based ANSYS-Maxwell." International Journal of Engineering and Applied Sciences 14, no. 2 (2022): 66–76. http://dx.doi.org/10.24107/ijeas.1163134.

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The most basic electrical machine that converts mechanical energy into electrical energy is synchronous machines. Synchronous machines can be operated at high speeds and low speeds for different power plants. In terms of system planning, it is important to examine the operating characteristics of the machine at idle and variable load conditions in these cycles. It is very important that generators, which are the basic components of turbines in power plants, have high efficiency when they are designed. While synchronous generators are being designed, many parameters that are compatible with eac

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21

Orihara, Dai, Hisao Taoka, Hiroshi Kikusato, et al. "Internal Induced Voltage Modification for Current Limitation in Virtual Synchronous Machine." Energies 15, no. 3 (2022): 901. http://dx.doi.org/10.3390/en15030901.

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Virtual inertia control is a methodology to make inverter-based resources (IBR) behave like a synchronous machine. However, an IBR cannot fully emulate the response of synchronous machine because of its low-current capacity. When the inertial response of an IBR is affected by the current limitation, the synchronization of the synchronous machine simulated virtually inside the IBR controller with the other synchronous generators in the grid is affected, which may cause step-out of the simulated generator. We propose a methodology which can keep the synchronization by modifying internal induced

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22

Wang, K., Z. Q. Zhu, G. Ombach, M. Koch, S. Zhang, and J. Xu. "Torque ripple reduction of synchronous reluctance machines: using asymmetric flux-barrier." COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering 34, no. 1 (2015): 18–31. http://dx.doi.org/10.1108/compel-11-2013-0367.

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Purpose – The purpose of this paper is to reduce the torque ripple but not to decrease the average torque of synchronous reluctance machines by using one step or more than two axially laminated rotors with asymmetric flux-barrier. Design/methodology/approach – A 24-slot four-pole synchronous reluctance machine with overlapping windings and asymmetric flux-barrier in the rotor is, first, described and designed by finite element (FE) method for maximizing average torque. The dimensions of asymmetric flux-barrier including the pole span angle and flux-barrier angle will be optimized to minimize t

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Ramandeep, Singh*1 &. Somit Dheer2. "FUZZY LOGIC POWER SYSTEM STABILIZER FOR IMPROVEMENT OF DYNAMIC PERFORMANCE OF MACHINE." GLOBAL JOURNAL OF ENGINEERING SCIENCE AND RESEARCHES 4, no. 4 (2018): 80–86. https://doi.org/10.5281/zenodo.1143959.

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Small signal stability is the ability of the power system to maintain synchronism under small perturbations. The small signal dynamic stability of electric power system has been the subject of major theoretical and practical interest and it continue to grow in importance as the control requirements of the power plants become more sophisticated and demanding torque. The range of 0.2 to 2.5 Hz. the damping characteristics of synchronous machine’s rotor oscillations is a function of system structures, operating condition and control structures. The power system stabilizers are widely used t

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Reichmeider, P. P., C. A. Gross, D. Querrey, D. Novosel, and S. Salon. "Internal faults in synchronous machines. I. The machine model." IEEE Transactions on Energy Conversion 15, no. 4 (2000): 376–79. http://dx.doi.org/10.1109/60.900496.

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Kalt, Svenja, Jonathan Erhard, and Markus Lienkamp. "Electric Machine Design Tool for Permanent Magnet Synchronous Machines and Induction Machines." Machines 8, no. 1 (2020): 15. http://dx.doi.org/10.3390/machines8010015.

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The rising mobility demand of today’s society leads to an increasing strain of noise and pollutant emissions on people and the environment. An increasing environmental awareness and the scarcity of fossil fuels are increasingly placing alternative-powered vehicles in the focus of politics, research and development. Electric vehicles represent a promising solution to this problem. The electric machine represents a design control lever for the optimization of the electric powertrain with regard to efficiency, power, weight and size. Therefore, accurate and realistic machine design tools for the

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Demiroren, A., and H. L. Zeynelgil. "Modelling and Simulation of Synchronous Machine Transient Analysis Using Simulink." International Journal of Electrical Engineering & Education 39, no. 4 (2002): 337–46. http://dx.doi.org/10.7227/ijeee.39.4.4.

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This work describes a method which illustrates the benefits of the visual aspects of MATLAB/SIMULINK for educational purposes. The method is specially developed for transient analysis of synchronous machines given by a simplified model. Details such as the exciter circuit, turbine and governor systems of a synchronous machine which is linked to an infinitive bus through two equivalent lines are given and this system is implemented in SIMULINK. The considered synchronous machine has a rated power capacity of 160 MVA and rated voltage of 15 kV.

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Vikharev, D. Yu, and N. A. Rodin. "Model of implicit pole electric machine based on mathematical formulation of magnetic field in air gap." Vestnik IGEU, no. 6 (December 28, 2021): 27–37. http://dx.doi.org/10.17588/2072-2672.2021.6.027-037.

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When modeling transient processes in electric power systems, the issue of designing reliable models of electrical machines is of great interest. The most difficult task is to design the models of synchronous and asynchronous machines. The purpose of the project is to develop mathematical models of synchronous and asynchronous machines based on a generalized model of an implicit-pole machine that considers the change of rotor speed, geometric shapes, and the type of rotor and stator windings. Methods of mathematical modeling of electromagnetic fields in the air gap based on Maxwell equations an

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Jurca, Florin Nicolae, Radu Petru Hangiu, and Claudia Martis. "Design and Performance Analysis of an Integrated Starter-Alternator for Hybrid Electric Vehicles." Advanced Engineering Forum 8-9 (June 2013): 453–60. http://dx.doi.org/10.4028/www.scientific.net/aef.8-9.453.

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In automotive applications, the requirements for the electrical machines are about performance and reliability - the permanent magnet synchronous machines ensure these requirements are fulfilled. The approach of the present paper is to analyze the permanent synchronous machines suited for the integrated starter-alternator (ISA) applications. The study design requires some analytical, followed by a numerical analysis and also a finite element method in order to achieve the performances of the machine. The operation modes of an ISA system and the constraints for an electric machine acting as an

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Kupiec, Emil, and Włodzimierz Przyborowski. "Magnetic equivalent circuit model for unipolar hybrid excitation synchronous machine." Archives of Electrical Engineering 64, no. 1 (2015): 107–17. http://dx.doi.org/10.1515/aee-2015-0010.

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AbstractLately, there has been increased interest in hybrid excitation electrical machines. Hybrid excitation is a construction that combines permanent magnet excitation with wound field excitation. Within the general classification, these machines can be classified as modified synchronous machines or inductor machines. These machines may be applied as motors and generators. The complexity of electromagnetic phenomena which occur as a result of coupling of magnetic fluxes of separate excitation systems with perpendicular magnetic axis is a motivation to formulate various mathematical models of

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Anton, Mihăiţă-Emanuel. "A Comparative FEM Study Between Permanent Magnet and Wound Field Synchronous Machines." Bulletin of the Polytechnic Institute of Iași. Electrical Engineering, Power Engineering, Electronics Section 70, no. 1 (2024): 75–85. https://doi.org/10.2478/bipie-2024-0005.

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Abstract In this paper, the performances of a surface-mounted permanent magnet synchronous machine (PMSM) and a wound field synchronous machine (WFSM) are compared to highlight their respective advantages and characteristics. This study focuses on two 1kW synchronous machines with a 9/10 structure (9 stator poles and 10 rotor poles) with identical stator geometries, the first one excited by permanent magnets and the second excited by an electromagnetic field. The paper includes detailed descriptions of the electrical machines and their parameters. The analysis was performed by using the ANSYS

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Petrík, Tomáš, Milan Daneček, Ivan Uhlíř, Vladislav Poulek, and Martin Libra. "Distribution Grid Stability—Influence of Inertia Moment of Synchronous Machines." Applied Sciences 10, no. 24 (2020): 9075. http://dx.doi.org/10.3390/app10249075.

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This paper shows the influence of grid frequency oscillations on synchronous machines coupled to masses with large moments of inertia and solves the maximum permissible value of a moment of inertia on the shaft of a synchronous machine in respect to the oscillation of grid frequency. Grid frequency variation causes a load angle to swing on the synchronous machines connected to the grid. This effect is particularly significant in microgrids. This article does not consider the effects of other components of the system, such as the effects of frequency, voltage, and power regulators.

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Bachir, Naas, Benalia M’hamdi, Amari Abderrahmane, and Naas Badreddine. "Double star permanent magnet synchronous machine: modified direct torque control." STUDIES IN ENGINEERING AND EXACT SCIENCES 5, no. 1 (2024): 974–87. http://dx.doi.org/10.54021/seesv5n1-051.

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In the area of high power drives, double star synchronous machines are an interesting choice compared to conventional synchronous machines, due to the relatively low torque ripple created. In this paper, direct torque control (DTC) of double star permanent magnet synchronous machine (DS-PMSM) using artificial neural networks (ANN) is proposed. MATLAB/Simulink results show the comparison between direct torque control (DTC) and direct torque control using artificial neural networks (ANN). The analysis of the results shows good performance for speed, small torque and flow ripple when using the ar

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Afanasyev, Aleksandr A., and Evgenii G. Paimurzov. "A SENSORLESS CONTROL METHOD OF THYRISTOR STATICAL FREQUENCY CONVERTER FOR STARTING SYNCHRONOUS MACHINE." Vestnik Chuvashskogo universiteta, no. 2 (June 30, 2023): 41–54. http://dx.doi.org/10.47026/1810-1909-2023-2-41-54.

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Relevance of study. Starting of the medium voltage synchronous machine at standstill is one of the main problems in the operation of unregulated synchronous electric drives. The optimal solution is starting the excited synchronous machine fed by the thyristor statical frequency converter. A sensorless control of the statical frequency converter for thyristor switching of load-commutated inverter to functions of synchronous machine angular rotor position in the area of zero and low speed, has not yet received a clear solution.  The purpose of this study is the design of the sensorle

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Guessoum, Anis, Rebecca Mazloum, Sami Hlioui, Guillaume Mermaz-Rollet, and Mohamed Gabsi. "Variable Flux Memory Machines for Electric Vehicles: A Comparative Study." EPJ Web of Conferences 330 (2025): 06005. https://doi.org/10.1051/epjconf/202533006005.

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This paper overviews different synchronous machine types and topologies applied to electric vehicles (EV) traction. The very widespread permanent magnet synchronous machine (PMSM) and wound field synchronous machine (WFSM) are first compared in terms of efficiency at equivalent size and power. This comparison raises questions about the ideal properties and features of a synchronous machine to obtain maximum efficiency over the entire torque-speed envelope, which introduces the concept of variable flux memory machines (VFMM). Three hybrid permanent magnet (PM) VFMM configurations are compared f

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RAJAMANI, K., and M. V. HARIHARAN. "SYNCHRONOUS STARTING OF SYNCHRONOUS MACHINE." Electric Machines & Power Systems 21, no. 6 (1993): 647–61. http://dx.doi.org/10.1080/07313569308909690.

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Awah, Chukwuemeka Chijioke, and Ogbonnaya Inya Okoro. "Torque characteristics of double-stator permanent magnet synchronous machines." Archives of Electrical Engineering 66, no. 4 (2017): 815–28. http://dx.doi.org/10.1515/aee-2017-0062.

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Abstract The torque profile of a double-stator permanent magnet (PM) synchronous machine of 90 mm stator diameter having different rotor pole numbers as well as dual excitation is investigated in this paper. The analysis includes a comparative study of the machine’s torque and power-speed curves, static torque and inductance characteristics, losses and unbalanced magnetic force. The most promising flux-weakening potential is revealed in 13- and 7-rotor pole machines. Moreover, the machines having different rotor/stator (Nr/Ns) pole combinations of the form Nr = Ns ± 1 have balanced and symmetr

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Podymaka, Valeriy. "DYNAMIC CONDITIONS OF COMPENSATED SYNCHRONOUS MACHINE." Science Journal Innovation Technologies Transfer, no. 2019-4 (September 1, 2019): 76–82. http://dx.doi.org/10.36381/iamsti.4.2019.76-82.

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The dynamic behavior of synchronous machine with longitudinal-transverse excitement by maintenance of the rotor overhang corner as equal zero are considered. The given condition is named as compensated and correspond with full compensation of transverse armature reaction by magnetizing force of transverse excitement winding. In such machine is absented the limit of steady-state overload, but active and reactive components of load current are concurrent as projections of load current image vector on orthogonal axes of machine inductor. The research aim is a determination of steady-state stabili

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38

May, H., R. Palka, P. Paplicki, S. Szkolny, and W. R. Canders. "Modified concept of permanent magnet excited synchronous machines with improved high-speed features." Archives of Electrical Engineering 60, no. 4 (2011): 531–40. http://dx.doi.org/10.2478/v10171-011-0043-2.

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Modified concept of permanent magnet excited synchronous machines with improved high-speed features Permanent magnet (PM) excited synchronous machines used in modern drives for electro-mobiles suffer in high speed regions from the limited battery-voltage. The field weakening requires designing machines with reduced power conversion properties or increasing the size of the power converter. A new concept of such a machine features PM excitation, single-tooth winding and an additional circumferential excitation coil fixed on the stator in the axial center of the machine. By the appropriate feedin

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39

Schmuelling, Christoph, Christian Kreischer, and Marek Gołebiowski. "Investigation of the stator inductances of the expanded Park model and an approach on parameter identification using the evolution strategy." Archives of Electrical Engineering 65, no. 3 (2016): 585–99. http://dx.doi.org/10.1515/aee-2016-0042.

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Abstract Commonly, the Park model is used to calculate transients or steady-state operations of synchronous machines. The expanded Park theory derives the Park equations from the phase-domain model of the synchronous machine by the use of transformations. Thereby, several hypothesis are made, which are under investigation in this article in respect to the main inductances of two different types of synchronous machines. It is shown, that the derivation of the Park equations from the phase-domain model does not lead to constant inductances, as it is usually assumed for these equations. Neverthel

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Łyskawinski, Wiesław, Cezary Jędryczka, Dorota Stachowiak, Piotr Łukaszewicz, and Michał Czarnecki. "Finite element analysis and experimental verification of high reliability synchronous reluctance machine." Eksploatacja i Niezawodnosc - Maintenance and Reliability 24, no. 2 (2022): 386–93. http://dx.doi.org/10.17531/ein.2022.2.20.

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The aim of this study was to investigate and analyse the synchronous reluctance machine. An accurate method for determining the lumped parameters of an equivalent circuit of the studied machine has been proposed. The method is based on the phase currents and voltages analysis at low slip operation. Experimental research of a synchronous reluctance machine is supplemented by simulation studies. The field-circuit model of electromagnetic phenomena in the considered motor was developed and used in simulation. The proposed method allows the numerical model to be verified by comparing the calculate

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Müller, Samuel, David Maier, and Nejila Parspour. "Inductive Electrically Excited Synchronous Machine for Electrical Vehicles—Design, Optimization and Measurement." Energies 16, no. 4 (2023): 1657. http://dx.doi.org/10.3390/en16041657.

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The demand for electric machines has been rising steadily for several years—mainly due to the move away from the combustion engine. Synchronous motors with rare earth permanent magnets are widely used due to their high power densities. These magnets are cost-intensive, cost-sensitive and often environmentally harmful. In addition to dispensing with permanent magnets, electrically excited synchronous machines offer the advantage of an adjustable excitation and, thus, a higher efficiency in the partial load range in field weakening operation. Field weakening operation is relevant for the applica

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42

Wang, K., Z. Q. Zhu, G. Ombach, M. Koch, S. Zhang, and J. Xu. "Torque ripple reduction of synchronous reluctance machines." COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering 34, no. 1 (2015): 3–17. http://dx.doi.org/10.1108/compel-11-2013-0366.

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Purpose – The purpose of this paper is to investigate the influence of stator and rotor pole number combinations together with the flux-barrier layers number on the performance of synchronous reluctance machine with emphasis on output torque capability and torque ripple. Design/methodology/approach – AC synchronous reluctance machine (SynRM) or permanent magnet assisted SynRM presently receives a great deal of interest, since there is less or even no rare-earth permanent magnet in the rotor. Most of SynRM machines employ a stator that is originally designed for a standard squirrel cage inducti

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43

Ding, Junsheng, and Zhongyong Zhao. "Diagnosis of Stator Inter-Turn Short Circuit Faults in Synchronous Machines Based on SFRA and MTST." Energies 18, no. 8 (2025): 2142. https://doi.org/10.3390/en18082142.

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As a key component of the power system, the good or bad conditions of synchronous machines will directly affect the stable supply of electric energy. The inter-turn short fault of the stator is one of the main dangers to the synchronous machine and is difficult to diagnose. Frequency response analysis has recently been introduced and used for detecting this type of fault; however, the fault degrees and locations cannot be directly recognized by traditional frequency response analysis. Therefore, this study improves the frequency response analysis by combining it with a deep learning model of a

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44

Hwang, Yunn Lin, and Van Thuan Truong. "A Synchronous Approach for Numerical Simulation of Machine Tools." Key Engineering Materials 642 (April 2015): 317–22. http://dx.doi.org/10.4028/www.scientific.net/kem.642.317.

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In this paper, a synchronous approach for dynamic simulation of machine tools is described. Computer Aided Engineering (CAE) method models and analyzes a dynamical parameter prototype of machine tools. In which, the flexible structure, interactive movement, non-linear factor effects as well as characteristics of resonance frequencies and mechanical transfer function are considered. The integrating Finite Element Method (FEM), Multi-Body Dynamics (MBD) and control carries out a solution of machine tools simulation for predicting dynamic machine behaviors. The static analysis and modal analysis

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45

Petrík, Tomáš, Ioannis Gravalos, Ivan Uhlíř, Martin Libra, and Vladislav Poulek. "Parametric Damping of Microgrid Frequency Fluctuations at Synchronous Machines with Using Lyapunov Theory for Exciter Regulation." International Journal of Energy Research 2023 (August 7, 2023): 1–7. http://dx.doi.org/10.1155/2023/5569059.

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Abstract (sommario):

In synchronous machines, electromechanical swinging can be damped by parametric control of the excitation current. This is possible only in case the excitation time constant is much smaller than the mechanical constant of the machine. The method described in this paper is effective for damping oscillations caused by oscillations in the grid frequency, grid voltage, and mechanical torque fluctuations. The method is based on the Lyapunov stability theory and demonstrated on a real synchronous machine. This machine operates as a noninterruptible backup power system. The original power fluctuation

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46

Sari-Ali, Inchirah, Bachir Chikh-Bled, Omolayo M. Ikumapayi, Zahira Dib, Giulio Lorenzini, and Younes Menni. "Energy Transfer from an Electrical Network-Connected Synchronous Machine." Journal Européen des Systèmes Automatisés 55, no. 5 (2022): 573–79. http://dx.doi.org/10.18280/jesa.550502.

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Abstract (sommario):

Any alternating electric power supply is always characterized by three reference quantities, which are voltage, electric power and frequency. The generators of power stations are synchronous machines. The present work is based on the modelling of the synchronous machine for a study of the stability of the electricity transmission network. The example considered is a thermal power station of the national network. i.e., Algiers port power station. We have developed a computer program based on MATLAB to simulate the calculations of our multi-variable system. The study presented in this article ex

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Douine, Bruno, Hocine Menana, Kevin Berger, Jean Lеvеque, Konstantin Kovalev, and Nikolay Ivanov. "Overview of High Temperature Superconductor Machines." Elektrichestvo 4, no. 4 (2021): 25–33. http://dx.doi.org/10.24160/0013-5380-2021-4-25-33.

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Abstract (sommario):

Electrical machines are important parts of different power systems. The application of high temperature superconductors (HTS) in electrical machines is very promising due to high transport currents. This paper reviews various topologies of superconducting motors and generators using HTS published in the literature in recent time. It begins with a brief presentation of the HTS material used in electrical machines. The description of AC losses and cryogenic systems is done afterwards. Then we offer a striking description of the various realizations of HTS electrical machines such as half HTS syn

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48

Ahmed, Sheeraz, Qasim Ali, Ghulam Jawad Sirewal, Kapeel Kumar, and Gilsu Choi. "Hybrid Brushless Wound-Rotor Synchronous Machine with Dual-Mode Operation for Washing Machine Applications." Machines 13, no. 5 (2025): 342. https://doi.org/10.3390/machines13050342.

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Abstract (sommario):

This paper proposes a hybrid brushless wound-rotor synchronous machine (HB-WRSM) with an outer rotor topology that can operate as a permanent magnet synchronous machine (PMSM), as well as an HB-WRSM. In the first part, the existing brushless wound-rotor synchronous machine (BL-WRSM) is modified into a hybrid model by introducing permanent magnets (PMs) in the rotor pole faces to improve the magnetic field strength and other performance variables of the machine. In the second part, a centrifugal switch is introduced, which can change the machine operation from HB-WRSM to PMSM. The proposed mach

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49

Esobinenwu, Chizindu Stanley, and Lamidi Salihu Owuda. "Modeling and Simulation of Pulp Mill Permanent Magnet Synchronous Machines with Damper Windings Using Matlab/Simulink." Saudi Journal of Engineering and Technology 8, no. 06 (2023): 115–26. http://dx.doi.org/10.36348/sjet.2023.v08i06.002.

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Abstract (sommario):

Modeling and simulation of pulp mill plant permanent magnet synchronous machines (PMSM) with damper windings using Matlab/Simulink is presented. Pulp mill is a manufacturing facility that converts wood chips, timber, wood products into wood pulp that is used to produce paper, cardboard, thick fiber board, which can be used by a paper mill for further processing. Pulp and paper industry has been considered a large consumer of energy and constitute a native treat to the plant as a result of machines transient due to heavy load variation. Modeling and simulation of pulp mill plant (PMSM) with dam

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50

YAMAMURA, Sakae. "SV theory of synchronous machine. Permanent-magnet-excited synchronous machine." Proceedings of the Japan Academy. Ser. B: Physical and Biological Sciences 74, no. 6 (1998): 122–25. http://dx.doi.org/10.2183/pjab.74.122.

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