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Artykuły w czasopismach na temat "Reluctance motors"

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Dirba, J., L. Lavrinovicha i R. Dobriyan. "Prospects for Use of Synchronous Reluctance Motors in Low-Power Electrical Devices". Latvian Journal of Physics and Technical Sciences 52, nr 2 (1.04.2015): 40–48. http://dx.doi.org/10.1515/lpts-2015-0010.

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Abstract This paper focuses on studying the synchronous reluctance motors as an alternative to low-power commutator motors. Analysis is done for the improved design of synchronous reluctance motor with a segmental external rotor. Relevant equations and a suitable method are proposed for calculating characteristics of the synchronous reluctance motors operating in a specific mode with electronic commutation as switched reluctance motors. It is concluded that synchronous reluctance motors in this mode can provide a wide range of characteristics and are quite competitive with commutator motors used in low-power devices.
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Ozcelik, Nezih Gokhan, Ugur Emre Dogru, Murat Imeryuz i Lale T. Ergene. "Synchronous Reluctance Motor vs. Induction Motor at Low-Power Industrial Applications: Design and Comparison". Energies 12, nr 11 (8.06.2019): 2190. http://dx.doi.org/10.3390/en12112190.

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Although three-phase induction motors are the most common motor type in industry, a growing interest has arisen in emerging electric motor technologies like synchronous reluctance motors and permanent magnet motors. Synchronous reluctance motors are a step forward compared to permanent magnet motors when the cost of the system is considered. The main focus of this study is low-power industrial applications, which generally use three-phase induction motors. In this study, the synchronous reluctance motor family is compared at three different power levels: 2.2 kW, 4 kW, and 5.5 kW. The aim of this study is to design and compare synchronous reluctance motors, which can be alternative to the reference induction motors. Finite element analysis is performed for the reference induction motors initially. Their stators are kept the same and the rotors are redesigned to satisfy output power requirements of the induction motors. Detailed design, analysis, and optimization processes are applied to the synchronous reluctance motors considering efficiency, power density, and manufacturing. The results are evaluated, and the optimized designs are chosen for each power level. They are prototyped and tested to measure their performance.
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Tiwari, Rajesh, i K. Rama Krishna. "Simulink modelling of C-Dump Converter employed in Switched Reluctance Motor". Journal of Futuristic Sciences and Applications 4, nr 1 (2021): 28–35. http://dx.doi.org/10.51976/jfsa.412105.

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Switched reluctance motors are among the finest competitors to induction motors. It is a well-liked choice because of its durability, brevity, straightforward design, and superior torque to mass ratio. Currents in the stator winding of a switching reluctance motor have a direct impact on the torque generated. A large negative voltage must be offered in order to quickly stop the current while it is working in the demagnetizing phase. This research work analyzes the C-dump converter’s design. The C-Dump converter makes it possible for the phase winding to be rapidly demagnetized and magnetised, which prevents the motor from being used in the generating state. Switched reluctance motors demonstrate a variety of converter topologies for adjusting speed, power, and operation. Additionally, it frequently makes use of the energy that has accumulated in the phase winding and can be returned to the source. Some modified C-Dump converter topologies can utilise this stored energy to bypass the motor’s next phase winding.
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Bui, Minh Dinh, Duc Hung Bui, Viet Linh Trieu i Quoc Vuong Dang. "Improved Torque and Efficiency of Induction Motors by Changing Rotor Structure of Permanent Magnet Assistance Synchronous Reluctance Motors". Journal of Technical Education Science, nr 71A (30.08.2022): 1–7. http://dx.doi.org/10.54644/jte.71a.2022.1145.

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Many authors have recently studied line start permanent magnet assistance synchronous reluctance. This paper presents a method to improve the electromagnetic torque and efficiency of induction motors of 7.5kW-4P (which consists of 36 stator slots and 40 rotor bars) by changing the design of the permanent magnet assistance synchronous reluctance rotors. This means that permanent magnets will be inserted to the squirrel cage induction motors (induction motors). The electromagnetic torque and efficiency of an induction motor is analyzed and compared with that of the line-start synchronous reluctance motor via a finite element analysis. In addition, the influence of position and length permanent magnets on the electromagnetic torque and efficiency of the line-start synchronous reluctance motor is also considered and simulated. The model of this motor Linh is finally designed with four U layered- magnet rotor to verify the developed method. The development of the method is also validated on the practical induction motor.
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Orlova, S., A. Rassõlkin, A. Kallaste, T. Vaimann i A. Belahcen. "Lifecycle Analysis of Different Motors from the Standpoint of Environmental Impact". Latvian Journal of Physics and Technical Sciences 53, nr 6 (1.12.2016): 37–46. http://dx.doi.org/10.1515/lpts-2016-0042.

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Abstract Comparative analysis is performed for different motors from the standpoint of damage inflicted by them during their lifecycle. Three types of motors have been considered: the synchronous reluctance motor, the permanent magnet assisted synchronous reluctance motor and the induction motor. The assessment of lifecycle has been made in terms of its four stages: manufacturing, distribution, use and end of life. The results show that the production costs of synchronous reluctance motor are lower compared to that of permanent magnet assisted motors, but due to their low efficiency they exert the greatest environmental impact. The main conclusion is that the assessment made at the early designing stage for the related environmental impact enables its reduction.
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Verma, Toran, i Shivani Agarwal. "C-Dump Converter employed with Switched Reluctance Motor". Journal of Futuristic Sciences and Applications 5, nr 1 (2022): 77–85. http://dx.doi.org/10.51976/jfsa.512211.

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Switched reluctance motors are among the finest competitors to induction motors. It is a well-liked choice because of its durability, brevity, straightforward design, and superior torque to mass ratio. This page talks about the C-dump converter's design. The C-Dump converter makes it possible for the phase winding to be rapidly demagnetized and magnetized, which prevents the motor from being used in the generating state. Currents in the stator winding of a switching reluctance motor have a direct impact on the torque generated. A large negative voltage must be offered in order to quickly stop the current while it is working in the demagnetizing phase. This paper analyzes the C-dump converter's design. The C-Dump converter makes it possible for the phase winding to be rapidly demagnetized and magnetized, which prevents the motor from being used in the generating state. Switched reluctance motors demonstrate a variety of converter topologies for adjusting speed, power, and operation. Additionally, it frequently makes use of the energy that has accumulated in the phase winding and can be returned to the source. Some modified C-Dump converter topologies can utilize this stored energy to bypass the motor's next phase winding.
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Zribi, Mohamed, i Muthana T. Alrifai. "Robust controllers for variable reluctance motors". Mathematical Problems in Engineering 2005, nr 2 (2005): 195–214. http://dx.doi.org/10.1155/mpe.2005.195.

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This paper investigates the control problem of variable reluctance motors (VRMs). VRMs are highly nonlinear motors; a model that takes magnetic saturation into account is adopted in this work. Two robust control schemes are developed for the speed control of a variable reluctance motor. The first control scheme guarantees the uniform ultimate boundedness of the closed loop system. The second control scheme guarantees the exponential stability of the closed loop system. Simulation results of the proposed controllers are presented to illustrate the theoretical developments. The simulations indicate that the proposed controllers work well, and they are robust to changes in the parameters of the motor and to changes in the load.
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Morón, Carlos, Enrique Tremps, Angel Gomez, Alfonso Garcia i Jose Andrés Somolinos. "Switched Reluctance Motors Control". Key Engineering Materials 605 (kwiecień 2014): 247–50. http://dx.doi.org/10.4028/www.scientific.net/kem.605.247.

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A current controlled switched reluctance motor (SRM) drive for variable speed applications with efficiency optimization is presented. A robust, modular and flexible prototyping SRM drives is proposed. It is composed of a power electronic block, a driver board, a measurement and interface board and a DSP controller board. Firing angles are computed online, the turn-on is calculated by means of the Boses rule, and the turn-off is calculated using the general theory of the optimal turn-off angle proposed by Gribble. In steady state operation, tie initial selection of firing angles is fine-tuned by means of an algorithm that minimizes the input power of the drive. A 6/4 switched reluctance motor drive prototype was tested and the experimental results show an improvement in online efficiency, a good steady-state performance and no deterioration in the dynamic response. An efficiency comparison with a commercial vector-controlled induction motor drive of the same size is also included.
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Levin, N., V. Pugachev, J. Dirba i L. Lavrinovicha. "Physical and Technical Energy Problems". Latvian Journal of Physics and Technical Sciences 50, nr 3 (1.06.2013): 3–11. http://dx.doi.org/10.2478/lpts-2013-0015.

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The paper presents an overview of brushless electric motors used in hand electric tools and household appliances. Analysis of the motor types has shown that synchronous reluctance motors are the most reliable for lowpower drives of such tools and appliances due to their simple design, long service life and low cost of production. Solutions are proposed for significant decrease in the quadrature-axis magnetic flux of the synchronous reluctance motor. The motors are shown to develop the specific electromagnetic torque up to 0.35÷0.4 Nm/kg.
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Tariq, Iqra, Raheel Muzzammel, Umar Alqasmi i Ali Raza. "Artificial Neural Network-Based Control of Switched Reluctance Motor for Torque Ripple Reduction". Mathematical Problems in Engineering 2020 (30.11.2020): 1–31. http://dx.doi.org/10.1155/2020/9812715.

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Switched reluctance motor is acquiring major attention because of its simple design, economic development, and reduced dependability. These attributes make switched reluctance motors superior to other variable speed machines. The major challenge associated with the development of a switched reluctance motor is its high torque ripple. Torque ripple produces noise and vibration, resulting in degradation of its performance. Various techniques are developed to cope with torque ripples. Practically, there exists not a single mature technique for the minimization of torque ripples in switched reluctance motors. In this research, a switched reluctance motor is modelled and analysed. Its speed and current control are implemented through artificial neural networks. Artificial neural network is found to be a promising technique as compared with other techniques because of its accuracy, reduced complexity, stability, and generalization. The Levenberg–Marquardt algorithm is utilized in artificial neural networks due to its fast and stable convergence for training and testing. It is found from research that artificial neural network-based improved control shows better performance of the switched reluctance motor. Realization of this technique is further validated from its mean square error analysis. Operating parameters of the switched reluctance motor are improved significantly. Simulation environment is created in Matlab/Simulink.
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Rozprawy doktorskie na temat "Reluctance motors"

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Kummara, Venkata Guru Raghavendra. "Simulation of Switched Reluctance Motors". Master's thesis, Alma Mater Studiorum - Università di Bologna, 2017.

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This project includes the basic principle of the switched reluctance motors, motor topologies, mathematical approach, torque production, electromagnetics, drives, converters and their applications. This part means to help to understand the working principle and properties of SRM,(Switched Reluctance Motors). Some controlling actions of the SRM, such as Current Control and Speed Control, are employed. Simulation results will be discussed at the end and compared with the predefined Simulink Model of the Switched Reluctance Motors.
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Amreiz, Hassan Musa. "Transverse flux switched reluctance motors". Thesis, University of Newcastle Upon Tyne, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.270782.

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El-Kharashi, Eyhab Aly Kamel. "Segmented rotor switched reluctance motors". Thesis, University of Newcastle upon Tyne, 2003. http://hdl.handle.net/10443/3112.

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This thesis introduces and researches the concept of a new form of switched reluctance motor, in which the rotor is made from a series of discrete segments. Single phase machines are initially examined and design rules established. Predictions of air-gap force density are compared with toothed rotor equivalents and it is shown that much greater force densities are theoretically possible with the segmental design. The thesis then proceeds to apply the concepts developed to two different three phase configurations, which show particular advantages. Two demonstrator machines are designed and built, and their method of construction described. Measured static test results are initially presented for each machine and compared with a conventional switched reluctance motor of the same dimensions, revealing both the advantages and disadvantages of the two segmental rotor configurations. Both demonstrator machines are then run as SRM drives, with the current to each phase supplied from an asymmetric half bridge converter. The current and voltage waveforms are monitored, along with measurements of mean torque output. Waveforms are compared with those predicted by simulations and conclusions are drawn regarding the performance of the drive systems. The results of this work clearly demonstrate that segmental rotor SRMs have much greater torque capability than conventional toothed geometries. Of the two demonstrator machines constructed, one has a very high torque per unit loading, but has relatively long end-windings; the other has slightly reduced torque per unit loading but overcomes the problem of long end-windings. Both machines appear to outperform other forms of reluctance motor.
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Motamedi-Sedeh, Ardeshir. "Speed control of switched reluctance motors". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ28241.pdf.

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Lin, Zhengyu. "Advanced control of switched reluctance motors". Thesis, Heriot-Watt University, 2005. http://hdl.handle.net/10399/266.

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Chumacero, Polanco Erik. "Velocity sensorless control switched reluctance motors". Thesis, Paris 11, 2014. http://www.theses.fr/2014PA112062/document.

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Dans ce mémoire de thèse, nous présentons la conception, l'analyse de la stabilité, les simulations numériques et aussi les résultats des expérimentes concernant différents contrôleurs de vitesse mécanique du moteur à réluctance variable (MRV).Dans les deux premiers chapitres une brève description de la physique et de la construction du MRV est présenté ainsi que le problème du contrôle d'être abordé, c'est la commande de vitesse sans capteur. Il est aussi présenté l'état de l'art de ce problème et certains des solutions proposées dans d'autres travaux. On propose notre solution et on présente un petit résumé des articles scientifiques qui ont été publiés dans des magazines et des conférences.Dans le chapitre numéro trois est présenté le design du contrôleur adaptatif et sans capteur du MRV. On suppose, dans une première étape que seule la vitesse mécanique est inconnue et la stabilité exponentielle uniforme des erreurs de suivement est obtenue. Dans une deuxième étape, les conditions d'opération sont aggravées et, en plus de la vitesse, les paramètres physiques sont également supposées inconnues, la stabilité asymptotique uniforme est obtenue dans ce cas. L'estimation des paramètres du MRV est garantie grâce à la condition de persistance d'excitation. Cette commande se compose de deux boucles, une boucle interne basée sur un contrôleur de type PI2D qui est particulièrement intéressant parce qu'il est libre de modèle; cette boucle entraîne les variables mécaniques -la position et la vitesse- vers une référence désirée. Une deuxième boucle de contrôle externe prend le courant électrique vers un ' "courant de référence virtuelle" qui est généré sur la base d'une approche de partage de couple. Le contrôleur propose est testé au niveau de simulations numériques qui sont également présentés.Dans le quatrième chapitre, une nouvelle approche de modélisation du MRV est utilisée pour concevoir le contrôleur. Dans ce scénario, on suppose que l'ensemble de l'état et tous les paramètres physiques sont disponibles, cette approche est pensée pour être adapté au contrôleur basé sur observateur, recherche qui est en cours de développement. Le contrôleur est composé de deux boucles, également que celui qui a été mentionné précédemment. Ce contrôleur est sélectionné parce qu'il est approprié pour le contrôle d'équivalence vraie, qui il s'agit de remplacer les «mesures physiques» provenant d'un capteur par les «observations» provenant d'un observateur. La mise en oeuvre numérique est effectuée sur Simulink de Matlab.Enfin, dans le chapitre cinq, les résultats expérimentaux qui ont été effectués pour évaluer la performance des contrôleurs proposés -ce sont les PI2D et adaptatif PI2D pour le modèle simplifie ainsi que le PID pour le nouveau approche de modélisation- sont présentés. Dans la première partie, une brève description de la construction du banc de tests utilisé est présenté ainsi que quelques-unes caractéristiques techniques. Trois différentes profils de vitesse sont imposées à chacun des contrôleurs proposés -ce sont la tangente hyperbolique, la rampe saturée et la référence sinusoïdal- et de bonnes résultats sont obtenus en considérant que la variable contrôlée est la vitesse. Le dernier chapitre correspond aux conclusions de la recherche effectuée ainsi qu'aux travaux futurs
In this thesis dissertation we present the design, stability analysis, numerical simulations and physical experiments of different controllers designed to drive the mechanical velocity of the switched reluctance motor (SRM). In the First and Second Chapters a brief description of the physics and construction of the SRM is presented, as well as the problem of control to be aboard, that is the velocity sensorless control of motors and the state of the art of this problem. The proposed solution is introduced and a summary of the published papers as well as the contribution are also presented.In the Chapter number three is presented the velocity sensorless and adaptive control of the SRM. It is assumed, in a first stage, that only mechanical velocity is unknown, uniform exponential stability of the errors is achieved in this scenario. In a second stage, conditions are stressed and in addition to the velocity, physical parameters are also assumed unknown, uniform asymptotical stability is achieved in this case and parameters estimation is guaranteed under a persistence of excitation condition. This controller consists of two loops, an internal loop based on a PI2D–type controller which is of particular interest given it is free-model; this loop drives the mechanical variables –that is position and velocity- towards a desired reference. An external control loop takes the electrical current towards a ‘’virtual” current reference which is generated based on a torque share approach. The controller is tested on numerical simulations, which are also presented.In the fourth chapter, a new approach on the modeling of the SRM is utilized to design the controller, in this scenario is assumed that the whole state and all the physical parameters are available, however this approach is thought to be suitable to observer based controller, whose ongoing research is being performed. The controller is composed by two loops, similarly to the one mentioned previously. This controller is selected because it is suitable for certainty equivalence control, that is, to substitute the “measurements” by the “observations” coming from a virtual sensor. Numerical implementation is performed on Simulink of Matlab.Finally, in the Chapter five, the experimental results carried out to evaluate the performance of the proposed controllers are presented, these are the PI2D and the adaptive PI2D controllers for the simplified model and the $PID$ controller for the novel modeling approach. In the first part, a brief description of the construction of the utilized bench is presented as well as the some technical characteristics. Three different velocity profiles were imposed to each of the overmentioned controllers –these are the so called smooth step, the saturated ramp and the sinusoidal reference- and good results, considering that the controlled variable is the velocity, were obtained. The last chapter corresponds to the conclusions of the performed research as well as to the future work
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Sadri, Seyed Mohammad Reza. "Variable reluctance motor and drive systems". Thesis, View thesis, 1995. http://handle.uws.edu.au:8081/1959.7/427.

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This thesis investigates the development of a machine which is termed as singly salient reluctance (SSR) motor and its drive system. The stator of SSR motor is identical to that of a conventional induction motor or any other ac machine. Its rotor has salient poles with internal flux barriers or flux guides. This research covers the detailed designs of the SSR motors and their magnetic circuit analysis using finite element method (FEM). The parameters which are important for designing the SSR motor are investigated. This investigation resulted in designs which have low manufacturing cost as well as high torque per ampere, efficiency and power factors. This thesis also researches the different drive system for the SSR motor. The SSR motor is tested as a variable speed drive with closed loop control and supplied with dc source. Therefore for this purpose a controller system is designed and built. In addition, the SSR motor supplied by ac source using open loop control is also tested for synchronous operation. Some of the proposed designs are built and their performance compared with their predicted analysis. The SSR motors showed a competitive performance compared with equivalent induction motor in both efficiency and power factor. However the validity of the theoretical designs is assessed by comparing them with experimental results. Quite good agreement between experimental and theoretical evaluations has been achieved. In addition, suggested further improvements for SSR motors and drive systems are discussed.
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Sadri, Seyed Mohammad Reza. "Variable reluctance motor and drive systems /". View thesis, 1995. http://library.uws.edu.au/adt-NUWS/public/adt-NUWS20030716.150935/index.html.

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Sakurai, Atsuhiko. "Sliding mode control of switched reluctance motors". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/MQ63026.pdf.

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Shaikh, Abdulbasad Abdulkader. "Computer aided design of switched reluctance motors". Thesis, Imperial College London, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.325101.

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Książki na temat "Reluctance motors"

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Switched reluctance motors and their control. Hillsboro, OH: Magna Physics Pub., 1993.

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Obradović, Ilija. Doubly salient reluctance machines and their controllability. Redaktor Nenadovic Miroslav. Beograd: Serbian Academy of Sciences and Arts, 1985.

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Miller, T. J. E. 1947-, red. Switched reluctance motor drives: A reference book of collected papers. Ventura, CA, USA: Intertec Communications, 1988.

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IEEE Industry Applications Society. Meeting. Synchronous reluctance motors and drives: A new alternative. Redaktorzy Vagati A, Lipo T. A i IEEE Industrial Drives Committee. [New York (345 E. 47th St., New York 10017)]: Institute of Electrical and Electronics Engineers, 1994.

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Vonhof, Eberhard. Two phase switched reluctance motors for low voltage applications. Dublin: University College Dublin, 1996.

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Nasar, S. A. Permanent magnet, reluctance, andself-synchronous motors. Boca Raton: CRC Press, 1993.

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I, Boldea, i Unnewehr L. E. 1925-, red. Permanent magnet, reluctance, and self-synchronous motors. Boca Raton: CRC Press, 1993.

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Miller, T. J. E. Brushless permanent-magnet and reluctance motor drives. Wyd. 2. Oxford: Clarendon, 1993.

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Brushless permanent-magnet and reluctance motor drives. Oxford: Clarendon Press, 1989.

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Sakurai, Atsuhiko. Sliding mode control of switched reluctance motors. Ottawa: National Library of Canada, 2001.

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Części książek na temat "Reluctance motors"

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Ehsani, Mehrdad, i Iqbal Husain. "Switched Reluctance Motors". W Modern Electrical Drives, 333–49. Dordrecht: Springer Netherlands, 2000. http://dx.doi.org/10.1007/978-94-015-9387-8_16.

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Ertan, H. Bülent. "Switched Reluctance Motors". W Modern Electrical Drives, 141–95. Dordrecht: Springer Netherlands, 2000. http://dx.doi.org/10.1007/978-94-015-9387-8_8.

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Bolton, H. R. "Advanced Motor Technologies: Reluctance Motors". W Energy Efficiency Improvements in Electric Motors and Drives, 188–204. Berlin, Heidelberg: Springer Berlin Heidelberg, 1997. http://dx.doi.org/10.1007/978-3-642-60832-2_16.

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Bianchi, Nicola. "Synchronous Reluctance and PM Assisted Reluctance Motors". W The Rediscovery of Synchronous Reluctance and Ferrite Permanent Magnet Motors, 27–57. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-32202-5_2.

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Boldea, Ion, i Lucian Tutelea. "Claw Pole and Homopolar Synchronous Motors". W Reluctance Electric Machines, 179–200. Boca Raton : Taylor & Francis, a CRC title, part of the Taylor & Francis imprint, a member of the Taylor & Francis Group, the academic division of T&F Informa, plc, 2018.: CRC Press, 2018. http://dx.doi.org/10.1201/9780429458316-6.

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Boldea, Ion, i Lucian Tutelea. "Three-Phase Variable-Speed Reluctance Synchronous Motors". W Reluctance Electric Machines, 105–41. Boca Raton : Taylor & Francis, a CRC title, part of the Taylor & Francis imprint, a member of the Taylor & Francis Group, the academic division of T&F Informa, plc, 2018.: CRC Press, 2018. http://dx.doi.org/10.1201/9780429458316-4.

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Cheok, Adrian David. "Sensorless Control of Switched Reluctance Motors". W Computationally Intelligent Hybrid Systems, 93–124. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2012. http://dx.doi.org/10.1002/9780471683407.ch4.

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Cupertino, Francesco. "Automated Design of Synchronous Reluctance Motors". W The Rediscovery of Synchronous Reluctance and Ferrite Permanent Magnet Motors, 109–36. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-32202-5_5.

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Bitchkov, M. G., N. F. Ilinski i V. A. Sementchuk. "Switched Reluctance Drive for Mass Application". W Energy Efficiency Improvements in Electronic Motors and Drives, 113–16. Berlin, Heidelberg: Springer Berlin Heidelberg, 2000. http://dx.doi.org/10.1007/978-3-642-59785-5_11.

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Parasiliti, Francesco, i Marco Villani. "High-Efficiency IE4 Line-Start Synchronous Reluctance Motors". W Springer Proceedings in Energy, 53–65. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-69799-0_5.

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Streszczenia konferencji na temat "Reluctance motors"

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Adams, Robert, Jinjiang Xiao, Michael Cross i Max Deffenbaugh. "Switched Reluctance Motor for Electric Submersible Pump". W SPE Middle East Oil & Gas Show and Conference. SPE, 2021. http://dx.doi.org/10.2118/204720-ms.

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Abstract Switched reluctance motors may be advantageous when used as the primary motor for an electric submersible pump system. They are less susceptible to jamming failures due to their high starting torque and ability to reverse direction. Driving these motors requires well-timed pulse waveforms and precise control of the motor based on its rotational position. It is demonstrated that the pulses required to drive switched reluctance motors can still be applied over along cable lengths. Additionally, the current at the surface can be used to monitor and control the operation of the motor downhole, even with long cable lengths separating the surface power source and downhole motor.
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Hwang, Sangmoon, i Dennis K. Lieu. "Characterization and Reduction of Reluctance Torque in Permanent Magnet D.C. Motors". W ASME 1993 Design Technical Conferences. American Society of Mechanical Engineers, 1993. http://dx.doi.org/10.1115/detc1993-0237.

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Abstract For motors with low speeds and loads, torque pulsation by the reluctance torque is an important source of vibration and control difficulty. In this paper, the magnetic field of a motor is calculated by finite element method and the periodic reluctance torque is determined using Maxwell stress method and time stepping method, and then decomposed using Fourier series expansion. The purpose of this paper is to characterize design parameters on the reluctance torque and to design a permanent magnet motor with a reluctance torque less vulnerable to vibration, without sacrificing the motor performance. The design parameters include stator slot width, permanent magnet slot width, airgap length and magnetization direction. A new design with a less populated frequency spectrum of the reluctance torque is proposed after characterizing individual effect of design parameters. Gradual magnetization, by gradually increasing the thickness of the permanent magnets at edges, yields a smooth shape for the reluctance torque with reduced harmonics.
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Mathis, Allen, i D. Dane Quinn. "Linearized Electromagnetic and Vibration Modeling of Switched Reluctance Motors". W ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/detc2015-47947.

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Switched reluctance (SR) motors are becoming more and more prominent in both industry and academia due to their simple design characteristics and flexibility [3]. However, the pulsating nature of the torque in this kind of motor tends to generate unwanted accoustical noise and large, undesirable vibrations [2]. Many researchers have conducted complex experimental and finite-element studies to determine the sources of these vibrations, but comparatively little work has been done to analytically model these phenomena using first principles [2] [8] [3]. The goal of this paper then is to derive an anlytical model for the vibrations of an SR motor, and to predict the frequency response of a particular motor configuration. These results will help guide future work to reduce vibrations in these motors, therby making them more industrially viable.
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Queval, Loic, Lionel Vido, Alain Coty i Bernard Multon. "Photovoltaic motors review, comparison and switched reluctance motor prototype". W 2015 Tenth International Conference on Ecological Vehicles and Renewable Energies (EVER). IEEE, 2015. http://dx.doi.org/10.1109/ever.2015.7113028.

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Popham, Vernon W., Christopher C. Lawrenson, Ronald F. Burr i Bart Lipkens. "Variable Gap-Reluctance Linear Motor With Application to Linear Resonance Compressors". W ASME 2001 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/imece2001/nca-23518.

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Abstract Variable gap-reluctance linear motors operate on the principle of electromagnetic attraction across an air gap between a moving armature and a stator and coil, which minimizes reluctance or stored magnetic energy. The direction of motion, force and magnetic field are aligned and are perpendicular to the air gap. When the air gap and corresponding stroke are moderate, large amounts of force and power can be delivered from a compact design. Several sizes of a new variable gap-reluctance linear motor design have been developed, characterized and applied. Practical application is demonstrated for linear resonance diaphragm refrigerant and gas compressors. A leaf spring suspension is used to dynamically match the motor to the resonance compressor load. Analysis and experimental results are combined to develop and characterize both the basic motor and integrated compressor designs.
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Enache, Sorin, Aurel Campeanu, Ion Vlad i Monica-Adela Enache. "Reluctance synchronous motors modelling and analysis". W 2012 International Conference on Applied and Theoretical Electricity (ICATE). IEEE, 2012. http://dx.doi.org/10.1109/icate.2012.6403412.

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Aamoud, A., A. Naitali i A. Hammouch. "Online characterization of switched reluctance motors". W 2016 International Conference on Electrical and Information Technologies (ICEIT). IEEE, 2016. http://dx.doi.org/10.1109/eitech.2016.7519638.

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Dianguo, Xu, Jin Xinhai i Chen Wei. "Sensorless control of synchronous reluctance motors". W 2017 IEEE Transportation Electrification Conference and Expo, Asia-Pacific (ITEC Asia-Pacific). IEEE, 2017. http://dx.doi.org/10.1109/itec-ap.2017.8080935.

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Spargo, Christopher, Barrie Mecrow i James Widmer. "Synchronous reluctance motors with toroidal windings". W 2014 IEEE Energy Conversion Congress and Exposition (ECCE). IEEE, 2014. http://dx.doi.org/10.1109/ecce.2014.6953578.

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Boglietti, A., i M. Pastorelli. "Induction and synchronous reluctance motors comparison". W IECON 2008 - 34th Annual Conference of IEEE Industrial Electronics Society. IEEE, 2008. http://dx.doi.org/10.1109/iecon.2008.4758270.

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Raporty organizacyjne na temat "Reluctance motors"

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Otaduy, P. J. Modeling Reluctance-Assisted PM Motors. Office of Scientific and Technical Information (OSTI), styczeń 2006. http://dx.doi.org/10.2172/885945.

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Otaduy, P. J. The Role of Reluctance in PM Motors. Office of Scientific and Technical Information (OSTI), czerwiec 2005. http://dx.doi.org/10.2172/886004.

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Schupbach, Roberto M., Shyam S. Ramamurthy i Juan C. Balda. Modeling Switched Reluctance Motors under Multi-Phase Excitation, Part 1. Fort Belvoir, VA: Defense Technical Information Center, czerwiec 2000. http://dx.doi.org/10.21236/ada379235.

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Hall, Edilberto M., Shyam S. Ramamurthy i Juan C. Balda. An Enhanced Simple Method for Designing Switched Reluctance Motors Under Multi-Phase Excitation. Fort Belvoir, VA: Defense Technical Information Center, czerwiec 2000. http://dx.doi.org/10.21236/ada378667.

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Wheeler, Grant, i Michael Deru. Evaluation of High Rotor Pole Switched Reluctance Motors to Control Condenser Fans in a Commercial Refrigeration System. Office of Scientific and Technical Information (OSTI), czerwiec 2019. http://dx.doi.org/10.2172/1525771.

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Chang, Edwin, i Jihyun Kim. High Speed Hybrid Reluctance Motor Utilizing Anisotropic Materials. Office of Scientific and Technical Information (OSTI), marzec 2021. http://dx.doi.org/10.2172/1773389.

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Carlos, Juan, i Terry W. Martin. Design of a Switched-Reluctance Motor Drive for Electric Propulsion. Fort Belvoir, VA: Defense Technical Information Center, maj 1999. http://dx.doi.org/10.21236/ada363184.

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Ramamurthy, Shyam S., i Juan Carolos Balda. Final Report - Part 1: Aspects of Switched Reluctance Motor Drive Application for Electric Vehicle Propulsion. Fort Belvoir, VA: Defense Technical Information Center, maj 2001. http://dx.doi.org/10.21236/ada398311.

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Zhong Ze, Zhen, Terry W. Martin i Juan C. Balda. Modeling and Nonlinear Control of a Switched Reluctance Motor to Minimize Torque Ripple. Part 3. Fort Belvoir, VA: Defense Technical Information Center, czerwiec 2000. http://dx.doi.org/10.21236/ada379419.

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