Relevant bibliographies by topics / SYNCHRONUS MACHINE

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'SYNCHRONUS MACHINE'

Author: Grafiati
Published: 11 September 2023

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Journal articles on the topic "SYNCHRONUS MACHINE"

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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 (January 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 (October 27, 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 for estimating the temperature limit of each machine architecture, considering the characteristics of their critical parts.
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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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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 (November 1, 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 rotor geometry analysis of low cost ferrite permanent magnet-assisted synchronous reluctance machines with transversally-laminated rotor. The advanced finite element method will be employed to calculate d-axis and q-axis inductance variation with rotor geometric parameters. The electromagnetic performance of optimized permanent magnet-assisted synchronous reluctance machines will be evaluated as well.
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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 (January 28, 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 reviews the physical principles, implementation and performance of high-frequency signal injection based torque estimation for permanent magnet synchronous machines and synchronous reluctance machines.
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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 (topology) in the rotor casing of a synchronous machine (permanent magnets, iron, air, etc) determines the characteristics of permanent magnet synchronous electric machine.
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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 generator. This dynamic performance can be improved by StatCom technology.
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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, and rotor voltage. It is shown that the matrix structure of a generalized controlled AC machine is transformed into mathematical models of almost all encountered AC electric machines, namely, into a synchronous machine with two excitation windings - a longitudinal and a transverse one; in a synchronous machine with a longitudinal field winding (classic); in an asynchronous machine with a squirrel-cage rotor; into an asynchronous machine with a phase rotor. It has been shown that the matrix structure includes the controls of these machines both from the stator and from the rotor. On the stator side for synchronous machines, it is a frequency control that regulates both the amplitude and frequency of the applied voltage, and on the rotor side, a constant voltage control is supplied to the longitudinal and transverse windings. For asynchronous machines, the stator and rotor are frequency-controlled. The following are examples of frequency control of an asynchronous machine both from the stator and from the rotor.
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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 control system operation algorithm via simulation model owing to complexity of machine electromagnetic interaction. It is practical to use a variable attribute set model for this purpose. The following article considers one of these models for researching the system via MATLAB Simulink. Basic relations for programmatic model creation are presented. Comparative assessment of various machine model types is made.
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Pirmatov, N. B., A. M. Egamov, C. M. Giyasov, N. A. Mamarasulov, U. N. Berdiyorov, Sh O. Ergashov, and J. A. Nizamov. "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 synchronous machines with a rotating axis of magnetic saturation, attached to various designs of quadrature excitation winding. It has been recognized that neglecting magnetic saturation in performance calculations for synchronous machines leads to significant estimation errors properties of the studied machine. In addition, the advantages of synchronous machines with sine-cosine field winding are shown. With an insignificant complication of the manufacturing technology, it opens the way to solving the problem of creating energy-saving turbine generators, which have a property that is very important for the practice of operation, i.e. an almost unchanged (sinusoidal) shape of the resulting magnetic field in the air gap of the machine within the allowable range of load variation under steady-state symmetric modes.
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Dissertations / Theses on the topic "SYNCHRONUS MACHINE"

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Orciari, Luca. "Rotor position estimation of a bearingless permanent magnet synchronus motor by machine learning techniques." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019.

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In this testis project, developed at the university of Bologna at LAR (Laboratory of Automation and Robotics), is studied the reconstruction of the rotor attitude of Bearingless Permanent Magnet Synchronous Motor (BPMSM), by processing the output of six hall effect sensor using a neural network to improve an already existing model-based reconstruction algorithm.
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Rekioua, Toufik. "Contribution à la modélisation et à la commande vectorielle des machines synchrones à aimants permanents." Vandoeuvre-les-Nancy, INPL, 1991. http://docnum.univ-lorraine.fr/public/INPL_T_1991_REKIOUA_T.pdf.

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L’objectif de ce travail, est de modéliser et d'étudier par simulation numérique différentes méthodes de commande directe du couple d'une machine synchrone à aimants permanents à distribution sinusoïdale suivant le principe de la commande vectorielle. L'étude comporte trois parties: la première est consacrée à la modélisation des machines synchrones à aimants permanents associées à des convertisseurs statiques: nous décrivons ensuite la méthode de simulation numérique effectuée au moyen d'un générateur de programme: GASPE; enfin dans la dernière partie, nous étudions trois méthodes de commande directe du couple: contrôle des courants par hystérésis et dans le cas de l'alimentation par M. L. I. Contrôle des courants dans le repère de Park (d,q) lié au rotor puis dans le repère de phases (a,b,c) lie au stator nde vectorielle. L'étude comporte trois parties: la première est consacrée à la modélisation des machines synchrones à aimants permanents associées à des convertisseurs statiques: nous décrivons ensuite la méthode de simulation numérique effectuée au moyen d'un générateur de programme: GASPE; enfin dans la dernière partie, nous étudions trois méthodes de commande directe du couple: contrôle des courants par hystérésis et dans le cas de l'alimentation par M. L. I. Contrôle des courants dans le repère de Park (d,q) lié au rotor puis dans le repère de phases (a,b,c) lie au stator
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Wisniewski, Teodor. "Modélisation non-linéaire des machines synchrones pour l'analyse en régimes transitoires et les études de stabilité." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLC092/document.

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Les travaux de recherche présentésdans cette thèse ont été effectués dans le cadred'une collaboration entre Leroy Somer et lelaboratoire de génie électrique et électronique deParis (GeePs). Ils ont pour objectif lessimulations des phénomènes observés en modetransitoire des machines électriques. Cessimulations sont particulièrement orientées parles nouvelles exigences issues du Grid Code pourles alternateurs connectés au réseau.Principalement, deux types de modèles ont étédéveloppés. Le premier se base sur unereprésentation de l’état magnétique de lamachine où chaque flux est exprimé en fonctiondes courants des différentes bobines. Le secondmodèle regroupe les courants en utilisant descourants magnétisants sur les axes d et q associésà des coefficients de saturation pour chaque fluxet simplifie la représentation magnétique,notamment pour la prise encompte du circuit amortisseur. Avec unemodélisation suffisamment précise ducomportement magnétique non linéaire de lamachine, ils permettent de mieux prédire lescourants et le couple électromagnétique lors desdéfauts tels que les creux de tension. Les travauxeffectués présentés dans ce mémoire ont permis,en partant des descriptions des saturationstrouvées dans une machine, de définir desméthodes pour incorporer la saturation dans lesmodèles de type circuit et finalement d’aboutirau choix du modèle non-linéaire pour unemachine électrique donnée. Grâce à un temps decalcul réduit, ils ont aussi conduit à l'intégrationsous Simulink de modèles de la machine et dusystème d'entrainement pour la réalisationd'études de stabilité et pour créer unenvironnement de mise au point de la commandedu système
The research presented in this thesiswas carried out in the research and developmentproject between Leroy Somer and the Group ofElectrical Engineering of Paris (GeePs). Theirobjective is to simulate the phenomena observedin the transient states of electrical machines.These simulations are particularly oriented bythe new Grid Code requirements for alternatorsconnected to the power network. Two types ofmodels have been principally developed. Thefirst one is based on a magnetic description ofthe machine where each flux is expressed as afunction of the currents flowing through thedifferent machine windings. The second oneregroups the different winding currents by usingthe magnetizing currents on axes d and qassociated to saturation coefficients for eachflux linkage and simplifies the magneticdescription, especially when taking into accountthe damper windings. With a sufficiently precisemodelling of the non-linear magnetic behaviourof the machine, it is possible to better predict thecurrents and the electromagnetic torque underfault conditions such as voltage drops. The workcarried out in this thesis has made possible,starting from the descriptions of the saturationeffects found in a machine, to define methodsfor incorporating saturation into circuit models.Finally, one can make a choice of the dynamicnon-linear model for a given machine. Thanks toshort computation time, it also led to theSimulink integration of the machine andexcitation system models paving the way forstability and control studies
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Koteich, Mohamad. "Modélisation et observabilité des machines électriques en vue de la commande sans capteur mécanique." Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLC043/document.

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Les stratégies de commande avancée des machines électriques nécessitent une connaissance précise de la position et/ou de la vitesse du rotor. Ces grandeurs mécaniques sont traditionnellement mesurées par des capteurs, ce qui augmente le coût et diminue la fiabilité et la robustesse du système. D’où l’importance de la commande sans capteurs mécaniques, dite commande sensorless : elle consiste à remplacer les capteurs physiques par un observateur d’état, qui estime les grandeurs mécaniques en se basant sur un modèle de la machine et à partir de ses entrées (tensions) et ses sorties (courants mesurés). Toutefois, avant d’entamer la synthèse d’un observateur, il faut examiner l’observabilité du système, c.à.d. vérifier si les grandeurs à estimer peuvent être reconstruites à partir des mesures et des entrées du système.Ce travail de thèse concerne la modélisation et l’étude d’observabilité des machines électriques en vue de la commande sensorless. Dans un premier temps, les modèles des machines électriques sont établis, et il est montré qu’une modélisation unifiée des machines à courant alternatif est possible. Ensuite, en se basant sur ces modèles, l’observabilité des machines électriques est étudiée en vue de la commande sensorless. La théorie d’observabilité instantanée locale est appliquée, ce qui permet de formuler des conditions analytiques, faciles à interpréter et à vérifier en temps-réel, et qui font le lien avec les phénomènes physiques dans les machines. La validité des conditions d’observabilité est confirmée par des simulations et sur des données expérimentales, en appliquant un observateur de type Kalman étendu.Cette thèse contribue à une nouvelle vision des machines à courant alternatif commandées sans capteurs mécaniques, et à une compréhension plus profonde de leurs propriétés. Elle contribue ainsi à la synthèse de stratégies d’observation plus performantes dans les régimes de fonctionnement critiques (à vitesse nulle et/ou à fréquence d’entrée nulle).Les nouveaux concepts proposés dans cette thèse, tels que le flux équivalent et le vecteur d’observabilité, avec les résultats obtenus, ouvrent de nouveaux horizons dans un domaine qui paraît devenir assez mature
High-performance control of electric drives requires an accurate knowledge of the rotor position and/or speed. These mechanical variables are traditionally measured using sensors, which increases the cost and reduces both the robustness and the reliability of the system. This emphasizes the importance of electric drives control without shaft sensors, often referred to as sensorless control : it consists of replacing sensors with a state observer algorithm, that estimates the desired mechanical variables from currents and voltages sensing and based on the system’s model. Nevertheless, before designing a state observer, the observability ofthe system should be examined, that is, it should be checked whether the states to be estimated can be reconstructed, unambiguously, from the input/output signalsof the system.This work addresses the modeling and the observability analysis of electric drives in the view of mechanical sensors removal. Firstly, electrical machines models areelaborated, and it is shown that a unified modeling of alternating current machines is feasible, for the purpose of designing unified control and estimation strategies.The observability of the machines’ models is next studied in the view of sensorless control. The local instantaneous observability theory is applied, which enables us to formulate physically insightful analytic conditions that can be easily interpreted and tested in real time. The validity of the observability conditions is confirmed by numerical simulations and experimental data, using an extended Kalman observer.This work contributes to novel outlooks on the sensorless alternating current drives and to a deeper understanding of its properties, in order to develop higher performance estimation techniques in the critical operating conditions (mainly at standstill and/or zero-stator-frequency).The concepts introduced throughout this thesis, such as the equivalent flux and the observability vector, with the obtained results, open new horizons in a domainthat seems to become mature enough
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Mariani, Guilherme Bueno. "Machine synchrone à réluctance : modèles équivalents à réseau de réluctances pour la simulation et l’optimisation." Thesis, Université Grenoble Alpes (ComUE), 2016. http://www.theses.fr/2016GREAT021/document.

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L’enjeu de la thèse concerne la modélisation électromagnétique des machines synchrones à réluctance, avec comme objectif final : obtenir un modèle suffisamment précis et rapide pour, d’une part, être capable de calculer les ondulations de couple et d’autre part servir pour de l’optimisation dimensionnelle et pouvoir être couplé à un logiciel de type circuit pour tester une loi de commande. Un modèle du type schéma réluctant a été mis en place petit à petit avec validations à chaque étape. La modélisation des échanges dans l’entrefer utilise en final une fonction originale (intégrale de Fermi-Dirac) qui a entièrement été paramétrée avec les dimensions caractéristiques de la machine.Ce modèle de la machine, piloté par les courant, a ensuite été couplé avec un circuit électrique grâce à une interface de transformation tension-courant. Les optimisations réalisées avec ce modèle ont permis de mettre en évidence certains manques dans les contraintes dimensionnelles initiales et, celles-ci corrigées, de montrer que ce modèle était parfaitement utilisable pour cette démarche d’optimisation
This thesis aims the electromagnetic modeling of synchronous reluctance machines, with a final goal: to obtain a fast and sufficiently accurate model, able to calculate the torque ripple and to be used for optimal machine design and also capable to be coupled to circuit software to test control techniques.A MEC (magnetic equivalent circuit) model was created step-by-step and validated at each step. Final model of the air-gap is based on a function (Fermi-Dirac integral), which has been completely parameterized by machine dimensions. This model of the machine is driven by current; afterwards it was coupled with an electric circuit thanks to a voltage-current transformation interface. The optimizations made with the model allowed to highlight some deficiencies in the initial dimensional constraints. After corrections the model could be efficiently used in an optimization process
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Bernot, Alix. "Modélisation et optimisation d'une machine électrique homopolaire en poudre de fer." Thesis, CentraleSupélec, 2015. http://www.theses.fr/2015SUPL0025/document.

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Cette thèse présente l’étude d’une machine électrique à stator à flux transverse à griffes. Après une étude du SMC et des structures à flux transverse, une structure associant un stator à griffes à un rotor à aimants permanents est choisie. Un modèle de la machine par réseau de réluctances est développé, en s’appuyant sur des simulations éléments finis. Il est ensuite amendé par l’introduction d’hypothèses d’inclinaison de flux dans l’entrefer, puis il est validé par le test d’un prototype. L’architecture est alors optimisée après une analyse détaillée de la circulation des flux, qui permet d’identifier le problème de la saturation du pied de dents. Après des simulations éléments finis de la machine améliorée, un prototype est ensuite testé qui confirme l’apport de la nouvelle architecture.Une version alternative de la machine, avec un bobinage d’excitation au stator et un rotor massif est ensuite proposée. Cette machine promet une fabrication économique et une bonne robustesse. Un modèle analytique est proposé, accompagné d’une étude éléments finis, puis pour finir un prototype est testé. Une version améliorée de cette machine avec un rotor à dents isolés est ensuite proposée : un modèle analytique et des études éléments finis permettent de valider l’intérêt de cette évolution
This thesis presents the study of a claw-pole transverse flux electric machine. At first, SMC material properties and transverse flux structures are studied, leading to the choice of a structure combining a claw-pole stator and a permanent magnet rotor. The machine is modelled by the means of a magnetic equivalent circuit, with a reluctance network, developed with the help of finite elements simulation. The model is then changed with the introduction of the hypothesis that the flux is bent inside the airgap; it is then validated by the test of a prototype.The architecture of the machine is optimized after a detailed analysis of the flux circulation, leading to the identification of the tooth-tip saturation issue. After finite element simulation of the improved machine, a prototype is later tested, which confirms the gain brought by the new architecture.An alternative version of the machine, with a field winding attached to the stator and a massive rotor is then proposed. This machine promises to be cost-effective to build and robust thanks to its massive rotor. An analytical model of the machine is introduced, along with a finite element simulation, to end with the test of a prototype which confirms the possibilities of this new concept. An improved version of the machine with a rotor with isolated teeth is finally studied, with an analytical model and a finite element leading to the validation of the interest of this evolution
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Hamida, Mohamed Assaad. "Commande robuste sans capteur mécanique de l'actionneur synchrone à pôles saillants." Ecole centrale de Nantes, 2013. http://www.theses.fr/2013ECDN0010.

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Grace à ses avantages, la machine synchrone est de plus en plus utilisée dans de nombreux domaines (avionique, automobile,. . . ). Cette thèse traite le problème de la commande robuste non linéaire sans capteur de la machine synchrone à pôles saillants. Dans un premier temps, deux types d’observateurs non linéaires ont été élaborés pour reconstruire les grandeurs mécaniques afin de remplacer les capteurs matériels d’un part et pour estimer certains paramètres et perturbation d’autre part. Le but est de rendre les lois de commande sans capteur robustes vis-à-vis des variations paramétriques et des perturbations externes. Un observateur adaptatif et un observateur par modes glissants d’ordre supérieur ont été conçus en utilisant la technique des observateurs interconnectés. La deuxième contribution de nos travaux derecherche est de concevoir des lois de commande non linéaires performantes pour la machine synchrone à pôles saillants. Tout d’abord, une commande non linéaire de type backstepping a été améliorée par l’ajout d’actions intégrales à chaque étape de son algorithme de conception. Une commande par modes glissants d’ordre supérieur à trajectoires pré-calculées et une commande par modes glissants quasi-continue ont été conçues par la suite. L’association des lois de commande aux observateurs élaborés dans nos travaux permet de remplacer les capteurs mécaniques et d’améliorer la robustesse par rapport aux variations paramétriques et au couple de charge. La stabilité de chaque loi de commande sans capteur est prouvée. Les performances des lois de commande sans capteur proposées sont testées à travers des simulations et des expérimentations sur les trajectoires du benchmark “Commande sans capteur mécanique”. Des tests spécifiques montrent les performances et la robustesse des lois de commandes proposées
Thanks to its advantages, the permanent magnet synchronous machines become more usual in many fields (avionics, automotive). This thesis deals with the permanent magnet synchronous machine sensorless control design. Two kinds of nonlinear observers were developed, firstly to reconstruct the rotor position and the rotor speed in order to replace the mechanical sensor and secondly to estimate some parameter and disturbance in order to improve the robustness of the sensorless control laws. An adaptive observer and a high order sliding modes observer have been designed using the interconnected observers theory. The second contribution of our research work is to design efficient nonlinear control laws for the salient pole permanent magnet synchronous machine. For this purpose, three control laws have been designed. First,the classical backsteppingcontrol is improved by adding integral actions at each step of its design algorithm. Then, two kind of sliding mode controllers have been designed. Each control law is associated with an observer allowing to replace the mechanical sensors and to improve the robustness with respect to the parameter uncertainties and the load torque. The stability of both controller and observer is proven. The performance of the proposed sensorless control laws are tested through simulations and experiments on specific industrial benchmarks. Significant robustness tests are tested to illustrate the efficiency and the robustness of the proposed methods
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Fellah, Mohamed-Karim. "Commande numérique industrielle des convertisseurs à thyristors d'une machine synchrone autopilotée." Vandoeuvre-les-Nancy, INPL, 1991. http://docnum.univ-lorraine.fr/public/INPL_T_1991_FELLAH_M_K.pdf.

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Un des points importants de cette étude, qui s'inscrit dans le cadre d'une collaboration de recherche EDF-CEGELEC-CRAN, est la réalisation complète d'une commande numérique industrielle d'une machine synchrone autopilotée sur la base d'un cahier des charges présentant des contraintes en précision pour les angles de retard à l'amorçage et en dynamique de suivi fréquentiel. Une première partie de cette thèse contribue d'une manière importante à l'étude des phénomènes liés aux imperfections du réseau électrique d'alimentation, en particulier à l'extraction de la composante fondamentale d'un réseau perturbé à fréquences variables. Ceci représente une recherche spécifique sur le problème de synchronisation. Une seconde partie s'intéresse aux allumeurs numériques et aux méthodes de génération des impulsions de gâchettes. Une description et une étude comparative de plusieurs allumeurs déjà existants (allumeur à coïncidence, à retard, incrémental) est faite, ensuite, un allumeur (allumeur multi-stratégies) est proposé. Une dernière partie présente, enfin, l'étude complète (du cahier des charges à la réalisation pratique) de la commande de portes d'une machine synchrone autopilotée. Par ailleurs, la rapidité des processus, la complexité des interactions entre les différentes fonctions ont conduit à concevoir cette commande en se basant sur le formalisme de la méthode MAREL (Méthode de conception d'Applications temps Réel pour la commande de processus Électromécaniques) développée au CRAN
One of the important points of this study, which has been carried out in cooperation with EDF-CEGELEC-CRAN, is the complete realization of an industrial digital control of a self-controlled synchronous machine. This realization is based 0!l a given operation requirements specification especially for firing angle accuracy and variable-frequency following. In the first part of the thesis, phenomena related to the imperfections of power supply network are studied in a certain depth, especially the extraction of the fundamental of a noisy variable-frequency network. This is a specific research on the synchronizing problem. In the second part, we discuss digital firing circuits for thyristors and gate pulse production algorithms. We will give a description and a comparaison of several existing firing algorithms (reference crossing, time delayed, incremental) and then, propose a firing algorithm said hybrid algorithm. Finally, a complete study is made on firing control (from operation requirements specification to its hardware and software realization) of thyristor bridges for a self-controlled synchronous machine. Note that the rapidity of process, the complexity of the interaction between different functions make us, during the realizing procedure, to' follow the design method MAREL (Méthode de conception d'Applications temps Réel pour la commande de processus ELectromécaniques : design method for real time applications in electromechanical process control) developed in CRAN
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Colle, Alexandre. "Étude d’une machine supraconductrice à flux axial pour une application aéronautique." Electronic Thesis or Diss., Université de Lorraine, 2020. http://www.theses.fr/2020LORR0036.

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Le monde s’électrifie et plus particulièrement le monde du transport. En cause le réchauffement climatique et la pollution atmosphérique, qui promeut l’énergie électrique comme solution de la transition énergétique. L’électricité est de plus en plus un facteur de décarbonation avec les énergies renouvelables. De plus, l’utilisation de cette énergie est efficace. Le rendement des moteurs électriques peut être supérieur à 90 % contre 30 % pour les moteurs thermiques. Si la possibilité de transporter un grand nombre de passager au sol avec l’énergie électrique est une réalité, il en est autrement dans les airs. Mais le changement est en marche grâce à des projets comme le Solar Impulse, le célèbre avion solaire ayant fait le tour du monde en plusieurs étapes. Ces projets montrent que la technologie est quasiment prête. Le souci d’amélioration pour l’industrie de l’aéronautique concerne la masse des équipements. Pour un avion tout électrique le stockage de l’électricité et les convertisseurs électromécaniques doivent être plus performants que les technologies actuelles. Le stockage électrique est un des enjeux clés de la transition énergétique. Les solutions sont diverses et peuvent être mécanique (volant d’inertie), électrochimique (pile à combustible, batteries), électromagnétique (bobines supraconductrices, supercapacités) ou encore thermique (chaleur latente). La production ou la motorisation électrique est le second aspect de la transition. Les moteurs électriques à aimants permanents possèdent à l’heure actuelle le meilleur ratio puissance/poids, appelé aussi puissance massique. Mais cela est encore insuffisant, c’est la raison pour laquelle des technologies de ruptures sont étudiées comme l’utilisation de matériaux supraconducteurs. L’objectif de cette thèse consiste à étudier les matériaux supraconducteurs qui ont la particularité de n’avoir aucune perte quand un courant électrique les traverse. On y voit donc rapidement un avantage concernant leur intégration dans les machines électriques. Ils permettent d’augmenter le champ magnétique dans l’entrefer d’une machine électrique et d’en réduire le volume et la masse. Il s’agit d’une thématique de recherche importante du laboratoire GREEN de l’Université de Lorraine à Nancy avec lequel cette thèse s’est déroulée
The world is electrifying, especially the world of transport. Global warming and air pollution are the cause, which promotes electric power as a solution to the energy transition. Electricity is more and more a factor of decarbonation with renewable energies. Moreover, the use of this energy is efficient. The efficiency of electric motors can be more than 90% compared to 30% for internal combustion engines. If the possibility of transporting a large number of passengers on the ground with electric energy is a reality, it is different in the air. But change is on the way thanks to projects such as Solar Impulse, the famous solar airplane that has circumnavigated the world in several stages. These projects show that the technology is almost ready. The concern for improvement in the aeronautics industry concerns the mass of equipment. For an all-electric aircraft, the storage of electricity and the electromechanical converters must be more efficient than current technologies. Electrical storage is one of the key issues in the energy transition. The solutions are diverse and can be mechanical (flywheel), electrochemical (fuel cell, batteries), electromagnetic (superconducting coils, supercapacitors) or thermal (latent heat). Electric power generation or motorization is the second aspect of the transition. Permanent magnet electric motors currently have the best power-to-weight ratio, also known as power-to-weight. But this is still insufficient, which is why breakthrough technologies are being studied, such as the use of superconducting materials. The objective of this thesis is to study superconducting materials which have the particularity of having no loss when an electric current flow through them. We can therefore quickly see an advantage concerning their integration in electrical machines. They make it possible to increase the magnetic field in the air gap of an electrical machine and to reduce its volume and mass. This is an important research topic of the GREEN laboratory of the University of Lorraine in Nancy with which this thesis was carried out
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Nedjar, Boumedyen. "Modélisation basée sur la méthode des réseaux de perméances en vue de l’optimisation de machines synchrones à simple et à double excitation." Thesis, Cachan, Ecole normale supérieure, 2011. http://www.theses.fr/2011DENS0056/document.

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La traction hybride et/ou électrique est un domaine d’application en pleine croissance présentant une forte restriction en termes d’encombrement. Cela a poussé les concepteurs à créer des structures de machine adaptées. Parmi ces topologies, nous trouvons les machines synchrones à double excitation (MSDE). Ces machines permettent de combiner les avantages d’une machine à aimants et ceux d’une machine à excitation bobinée. Le choix d’un modèle pour ces machines est un élément important dans les étapes d’analyse, d’optimisation et de pré-dimensionnement. Ce mémoire présente une contribution à la modélisation des machines synchrones à simple et à double excitation basée sur la méthode des réseaux de perméances. Trois parties sont ainsi proposées. La première partie de la thèse présente deux états de l’art- un sur les machines synchrones à double excitation et l’autre sur les méthodes de modélisation des machines électriques et principalement la modélisation par réseau de perméances. Dans la deuxième partie, nous abordons la modélisation 2D de la machine synchrone à aimants permanents à concentration de flux avec prise en compte de la rotation et de la saturation. Le but de cette partie est de trouver des méthodes permettant de combiner à la fois temps de calcul et précision. On commence par la modélisation par réseau de perméances en se basant sur un maillage de l’espace d'étude par des réluctances bidirectionnelles, ainsi qu’une comparaison entre calcul du couple par le tenseur de Maxwell et flux-FMM. La deuxième section présente un couplage entre réseaux de perméances et éléments finis. La méthode proposée consiste à résoudre les deux modèles (réluctant et éléments finis) simultanément avec un logiciel EF. Le couplage s’effectue par une équivalence entre les dimensions géométriques et les caractéristiques magnétiques des matériaux. La présentation des différents modèles dans le plan précision-temps de calcul montre l’efficacité de l’utilisation des réseaux de perméances et du couplage comparé au modèle éléments finis. La troisième partie porte sur la modélisation tridimensionnelle des machines synchrones à double excitation. Dans un premier temps, nous présentons une adaptation de la modélisation par réseau de perméances aux structures tridimensionnelles. Puis, nous appliquons ce modèle aux machines synchrones à double excitation. La machine à double excitation à concentration de flux est présentée avec une étude de l’influence du feuilletage sur la capacité de contrôle du flux. Pour améliorer le contrôle du flux d'excitation, une machine à aimants enterrés homopolaire est également étudiée avec l'approche développée. La validation du modèle est réalisée par des éléments finis et des mesures expérimentales. Dans la dernière partie, une comparaison entre configurations homopolaire et bipolaire de la structure à aimants enterrés est effectuée, puis le rotor à concentration de flux est optimisé afin de le comparer à la machine à aimants enterrés
The electric and / or hybrid driveis are an application area growing with a strong restriction in terms of congestion. This prompted the designers to create appropriate structures. Among these topologies, we find the double-excitation synchronous machine (MSDE). These machines can combine the advantages of permanent magnets machine and those of a coils excited machine.The choice of a model for these machines is an important step in the analysis, optimization and pre-sizing. This thesis presents a contribution to the modeling by magnetic equivalent circuit (MEC) of single and double excitation synchronous machines. Three parties are offered as well. The first part of the thesis presents two states of the art: one on the double-excitation synchronous machines and the other on the modeling of electrical machines, mainly in the modeling by magnetic equivalent circuit. In the second part, we discuss the 2D modeling of flux concentration permanent magnet synchronous machine taking into account the rotation and saturation. The purpose of this section is to find ways to combine both computational time and accuracy. We start by using the magnetic equivalent circuit modeling based on a mesh of the structure and each mesh is replaced by two-way reluctances, then a torque estimation are obtened by two methods flux-FMM and Maxwell stress Tensor. The second section presents a coupling between magnetic equivalent circuit and finite element method. The proposed method is to solve the two models (reluctant and finite elements) simultaneously with software EF. The coupling is performed by an equivalence between the geometric dimensions and magnetic properties of materials. The presentation of different models in terms of time-accurate calculation shows the effectiveness of the use of MEC and coupling method compared to FEM. The third part concerns the three-dimensional modeling of double excitation synchronous machines. At first, we present an adaptation of the MEC to the three-dimensional structures. Then we apply this model to the double excitation synchronous machines (DESM). The DESM with flux concentration configuration is presented. To better control the wund flux of excitation, a buried magnet homopolar machine is also studied with the same approach. Model validation is performed by finite element and experimental measurements. In the last part, a comparison between homopolar and bipolar configurations is made, then the rotor flux concentration is optimized in order to compare it to the machine magnets buried
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Books on the topic "SYNCHRONUS MACHINE"

1

Analysis of synchronous machines. 2nd ed. Boca Raton, FL: Taylor & Francis, 2012.

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Souissi, Amal, Imen Abdennadher, and Ahmed Masmoudi. Linear Synchronous Machines. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-0423-1.

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Wu, Yung-Tsun. Monitoring of a synchronous machine. Manchester: University of Manchester, 1993.

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Reluctance synchronous machines and drives. Oxford, England: Clarendon Press, 1996.

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Kerszenbaum, Isidor. Inspection of large synchronous machines: Checklists, failure identification, and troubleshooting. New York: IEEE Press, 1996.

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Kaukonen, Jukka. Salient pole synchronous machine modelling in an industrial direct torque controlled drive application. Lappeenranta, Finland: Lappeenranta University of Technology, 1999.

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Lupkin, V. M. Analiz rezhimov sinkhronnoĭ mashiny metodami Li͡a︡punova. Leningrad: Ėnergoatomizdat, Leningradskoe otd-nie, 1991.

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E, Ovchinnikov I., ed. Teorii͡a︡ nesimmetrichnykh perekhodnykh prot͡s︡essov sinkhronnoĭ mashiny. Leningrad: Izd-vo "Nauka," Leningradskoe otd-nie, 1985.

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IEEE Electric Machinery Committee., ed. IEEE guide, test procedures for synchronous machines. New York, NY: Institute of Electrical and Electronics Engineers, 1996.

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Szaflarski, Aleksander. Dwustronnie zasilana maszyna pierścieniowa w warunkach pracy synchronicznej. Poznań: Wydawn. Politechniki Poznańskiej, 1997.

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Book chapters on the topic "SYNCHRONUS MACHINE"

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Elgerd, Olle I., and Patrick D. van der Puije. "Synchronous Machine." In Electric Power Engineering, 126–89. Boston, MA: Springer US, 1998. http://dx.doi.org/10.1007/978-1-4615-5997-9_4.

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Hsieh, Harry, Felice Balarin, and Alberto Sangiovanni-Vincentelli. "Codesign Finite State Machines." In Synchronous Equivalence, 23–39. Boston, MA: Springer US, 2001. http://dx.doi.org/10.1007/978-1-4615-1659-0_3.

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Edwards, J. D. "Synchronous Machines." In Electrical Machines and Drives, 130–47. London: Macmillan Education UK, 1991. http://dx.doi.org/10.1007/978-1-349-21313-9_5.

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Warnes, Lionel. "Synchronous machines." In Electronic and Electrical Engineering, 333–46. London: Macmillan Education UK, 1998. http://dx.doi.org/10.1007/978-1-349-15052-6_18.

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Warnes, Lionel. "Synchronous machines." In Electronic and Electrical Engineering, 337–49. London: Macmillan Education UK, 2003. http://dx.doi.org/10.1007/978-0-230-21633-4_18.

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Gerling, Dieter. "Synchronous Machines." In Electrical Machines, 189–217. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-17584-8_5.

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Le Doeuff, René, and Mohamed El Hadi Zaïm. "Synchronous Machines." In Rotating Electrical Machines, 81–166. Hoboken, NJ USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118620649.ch3.

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Vukosavic, Slobodan N. "Synchronous Machines." In Electrical Machines, 521–44. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4614-0400-2_18.

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Gieras, Jacek F. "Synchronous Machines." In Electrical Machines, 293–367. Boca Raton : CRC Press, 2017.: CRC Press, 2016. http://dx.doi.org/10.1201/9781315371429-7.

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Kocabiyikoğlu, Zeki Uğurata. "Synchronous Machines." In Electromechanical Energy Conversion, 207–39. First edition. | Boca Raton, FL : CRC Press, 2020. |: CRC Press, 2020. http://dx.doi.org/10.1201/9780429317637-8.

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Conference papers on the topic "SYNCHRONUS MACHINE"

1

Ozdil, Ali, and Yunus Uzun. "Finite Element Analyses of a TLA-type Synchronus Reluctance Machine." In 2022 International Conference on Electrical, Computer, Communications and Mechatronics Engineering (ICECCME). IEEE, 2022. http://dx.doi.org/10.1109/iceccme55909.2022.9988209.

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Unamuno, Eneko, Jon Are Suul, Marta Molinas, and Jon Andoni Barrena. "Comparative Eigenvalue Analysis of Synchronous Machine Emulations and Synchronous Machines." In IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society. IEEE, 2019. http://dx.doi.org/10.1109/iecon.2019.8927826.

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Vania, A., P. Pennacchi, and S. Chatterton. "Dynamic Effects Caused by the Non-Linear Behavior of Oil-Film Journal Bearings in Rotating Machines." In ASME Turbo Expo 2012: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/gt2012-69457.

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Many common faults and malfunctions in rotating machines mainly cause synchronous vibrations (1X). Very high 1X vibration levels can occur, in case of severe faults. Large journal orbits inside oil-film journal bearings may generate non-linear effects in the oil-film forces, whose presence can be detected by means of the appearance of not negligible super-synchronous vibrations of the shafts. In this paper, a model-based method has been used to study the effects of non-linear oil-film forces on the machine dynamic behavior that may occur during runups and rundowns. In general, it is possible to suppose that the importance of the non-linear behavior of oil-film journal bearings, and then the level of the super-synchronous vibrations, increases with the amplitude of the 1X vibrations caused by the primary fault. However, the numerical results of this study and the experimental evidences found in the monitoring data of a real machine have shown that the super-synchronous harmonic components of the oil-film forces may excite resonances of the shaft-train causing unexpected amplifications of the super-synchronous vibrations. This may make difficult the recognition of the presence of non-linear effects in the machine dynamic behavior and the identification of the actual cause of abnormal vibrations.
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Ma, Zhuoren, Ryan Arteaga, Muxuan Wang, and Christine Silveira. "Machine Learning to optimize Permanent Magnet Synchronous Machines." In 2020 IEEE 2nd International Conference on Civil Aviation Safety and Information Technology (ICCASIT). IEEE, 2020. http://dx.doi.org/10.1109/iccasit50869.2020.9368634.

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McElhinney, S. A., T. M. Jahns, and T. A. Shedd. "Centrifugally Pumped Thermosiphons for Motor Rotor Cooling." In ASME 2015 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems collocated with the ASME 2015 13th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/ipack2015-48516.

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This paper presents a detailed approach to provide improved cooling and heat spreading in electric machine rotors using centrifugally-pumped revolving thermosiphons. Design concepts are discussed that offer the following advantages: (1) high thermal performance across a wide range of operating points; (2) low-impedance heat paths; (3) excellent opportunities for integration with electric machine design for improved electromagnetic performance and structural design, as well as practical, cost-effective manufacturing. It takes advantage of centrifugal force to provide effective inertial pumping over a wide range of operating conditions. In addition, the new thermosiphon design is compatible with existing standard electric machine manufacturing techniques and cooling needs. A condenser section fin and ramp structure provides consistently high condensation performance. Surface texture design to promote effective nucleate boiling at high speeds is discussed, and fluid fill factor is analyzed. Applications include induction and PM synchronous machines. Benefits of these thermosiphons include increased steady-state power and torque density, increased and more consistent efficiency, and reduced permanent magnet volume and cost in PM synchronous machines. Other applications may include centrifugal gas compression, chemical processes, and machine tools.
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Walker, R. B., S. Perinpanayagam, and I. K. Jennions. "Localizing Unbalance Faults in Rotating Machinery." In ASME Turbo Expo 2013: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/gt2013-94455.

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Excessive levels of unbalance in rotating machinery continue to contribute to machine downtime and unscheduled and costly maintenance actions. Whilst unbalance as a rotordynamic fault has been studied in great detail during the last century, the localization of unbalance within a complex rotating machine is today often performed in practice using little more than ‘rules of thumb’. In this work, localizing excessive unbalance has been studied from an experimental perspective through the use of two rotordynamic test rigs fitted with multiple disks. Sub-synchronous non-linear features in the frequency domain have been identified and studied as a method of aiding the localization of unbalance faults, particularly in situations where sensor placement options are limited. The results of the study are discussed from the perspective of next-generation Integrated Vehicle Health Management (IVHM) systems for rotating machines.
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Kalt, Svenja, Jonathan Erhard, Benedikt Danquah, and Markus Lienkamp. "Electric Machine Design Tool for Permanent Magnet Synchronous Machines." In 2019 Fourteenth International Conference on Ecological Vehicles and Renewable Energies (EVER). IEEE, 2019. http://dx.doi.org/10.1109/ever.2019.8813601.

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Uddin Khan, Md Asif, Qiteng Hong, Di Liu, Agusti Egea Alvarez, Adam Dyśko, Campbell Booth, and Djaved Rostom. "Comparative Evaluation of Dynamic Performance of a Virtual Synchronous Machine and Synchronous Machines." In The 9th Renewable Power Generation Conference (RPG Dublin Online 2021). Institution of Engineering and Technology, 2021. http://dx.doi.org/10.1049/icp.2021.1362.

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Hruska, Karel, Lucie Hornikova, and David Koten. "Educational machinery with a brushless excited synchronous machine." In 2014 16th International Conference on Mechatronics - Mechatronika (ME). IEEE, 2014. http://dx.doi.org/10.1109/mechatronika.2014.7018299.

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Maslen, Eric H., Christopher K. Sortore, José A. Vázquez, and Carl R. Knospe. "Synchronous Response Estimation in Rotating Machinery." In ASME Turbo Expo 2000: Power for Land, Sea, and Air. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/2000-gt-0397.

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Synchronous response estimation attempts to determine the forced response (displacement) of a rotor at critical points which cannot be measured directly. This type of prediction, if accurate and reliable, has broad potential use in the rotating machinery industry. Many machines have close clearance points on their shafts, such as seals, which can easily be damaged by excess vibration. Accurate estimates of the actual level of vibration at these points could usefully assist machine operators in troubleshooting and in protecting the equipment from expensive damage. This type of response information can be used both to generate less conservative alarm limits and, if magnetic bearings are available, to directly guide the bearing controllers in restricting the rotor motion at these critical points. It is assumed that the disturbance forces acting upon the rotor are predominantly synchronous. The response estimate is constructed using the measurable response in conjunction with an estimator gain matrix derived from a model of the transmissibilites of the rotor system. A fundamental performance bound is established based on the single-speed set of measurements by bounding the response to the unmeasurable component of the disturbance force. Acknowledging that some model uncertainty will always exist, a robust performance analysis is developed using structured singular value (μ) analysis techniques. Assuming some reasonable levels of uncertainty for the model parameters (natural frequencies, modal dampings, mode shapes, bearing stiffnesses and dampings) the results of the estimator construction and analysis establish feasibility of the proposed estimation. Two reference rotor models that are representative of industrially sized machines are used to demonstrate and evaluate the estimation. The unmeasurable response estimation errors consistently lie below 25 μm for the examples examined.
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Reports on the topic "SYNCHRONUS MACHINE"

1

Snyder, Lawrence. A Taxonomy of Synchronous Parallel Machines. Fort Belvoir, VA: Defense Technical Information Center, August 1988. http://dx.doi.org/10.21236/ada204256.

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Ye, Z. Study and Development of Anti-Islanding Control for Synchronous Machine-Based Distributed Generators: November 2001--March 2004. Office of Scientific and Technical Information (OSTI), March 2006. http://dx.doi.org/10.2172/881311.

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Brown, Ian, and Daniel Ludois. Wound Field and Hybrid Synchronous Machines for EV Traction with Brushless Capacitive Rotor Field Excitation (Final Report). Office of Scientific and Technical Information (OSTI), December 2021. http://dx.doi.org/10.2172/1837809.

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