Bibliografie tematiche / Electric motors

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Letteratura scientifica selezionata sul tema "Electric motors"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 1 agosto 2024

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Articoli di riviste sul tema "Electric motors"

Kashirskikh, Veniamin, Valery Zavyalov e Irina Semykina. "On the Issue of Increasing Reliability of Electric Mining Machinery". E3S Web of Conferences 174 (2020): 03024. http://dx.doi.org/10.1051/e3sconf/202017403024.

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The paper considers conditions of mining machinery electric drives operation and analyzes the causes of insufficient reliability. To improve the reliability and efficiency of induction motors the authors propose the computer system designed for dynamic identification of electric motors to monitor their parameters and variables, which are estimated on operating equipment in real time. Operation of the system allows calculating unmeasurable quantities and is based on the mathematical model of the induction motor as well as mathematical methods of estimation and the information contained in the measured phase voltages and currents of the stator. For dynamic mode the mathematical model of the motor’s state and the measurement part were developed and certain results were obtained. Real-time information can be used for both control and management of electric motors, function testing, protection, forecasting as well as acceptance testing of electric motors in mining machinery electric drives to identify their individual data and quality control of the industrial processes in the manufacture or repair of motors.

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Gmyrek, Zbigniew. "Optimal Electric Motor Designs of Light Electric Vehicles: A Review". Energies 17, n. 14 (14 luglio 2024): 3462. http://dx.doi.org/10.3390/en17143462.

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This paper summarizes the results of numerous studies aimed at improving the operating characteristics of electric motors used in light electric vehicles (LEVs). This review focuses on four types of electric motors that can be installed in the drive wheel rims of LEVs. Due to the availability of new magnetic materials and the use of advanced techniques for optimizing the design of electric motors, new motor topologies have emerged. The latest generation motors have been shown to be more efficient, have higher torque density, and generate less torque ripple. This paper indicates and discusses current trends in the topology of electric motors designed for LEV drives. In this context, the effectiveness of the proposed design modifications in terms of selected motor operational characteristics was assessed. The proposed new topologies were compared with commercial solutions, also in terms of the possibility of improving their operational parameters.

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Jin, Chili. "Current Status and Prospects of Electric Motor Applications for Electric Vehicles". Highlights in Science, Engineering and Technology 37 (18 marzo 2023): 196–201. http://dx.doi.org/10.54097/hset.v37i.6074.

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Nowadays, with the global pursuit of zero emissions, the trend of automobile electrification is very rapid. The drive motor is the core component of electric vehicles, which has an important impact on the working life and performance of electric vehicles. Therefore, all major manufacturers are trying to find and develop better and more efficient motors. At present, the research on driving motor has become a hot issue in the field of electric vehicles, attracting many scholars to carry out a lot of research work. This paper analyzes four common driving motors in the market, discusses their structure, principle and performance, and lists their advantages and disadvantages for comparison. Then it describes the development status of various types of motors and their applications in electric vehicles, and introduces the prospects of electric vehicle motors and suggestions for improvement of switched reluctance motors.

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Lisov, Andrey A., Alexander G. Vozmilov, Nadezhda Yu Kuleva, Andrey I. Sogrin, Ramil A. Zakirov e Rafael Yu Ilimbetov. "Selection of a traction electric motor for arctic electric transport". Modern Transportation Systems and Technologies 9, n. 2 (30 giugno 2023): 44–56. http://dx.doi.org/10.17816/transsyst20239244-56.

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Aim: selection of a traction motor for electric freight transport operating in the Arctic. Methods: To achieve this aim, the main characteristics of existing types of DC and AC electric motors were considered, as well as data on the use of one or another type of motor in modern electric vehicle. Results: A comparative analysis of the most common motors has led to 2 main leaders - a permanent magnet synchronous motor (PMSM) and an induction motor (IM). Both types of motors are fully suitable for solving the aim. However, as it turned out later, PMSM is more often used for light vehicles, while IM in most cases is used for heavier vehicles. Conclusion: As a result of the analysis, it was decided that for electric transport operating in the Arctic, the best option is to use an induction motor as a traction motor.

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Suechoey, Boonlert, Somsak Siriporananon, Pana Chupun, Churirat Boonkhun e Chai Chompooinwai. "Performance Analysis and Fault Classification in a Large Electric Motor Using Vibration Assessment Technique". International Journal of Intelligent Engineering and Systems 14, n. 1 (28 febbraio 2021): 124–33. http://dx.doi.org/10.22266/ijies2021.0228.13.

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This research paper presents an analysis of electric motors performance by the assessment of vibration characteristics caused by bearing faults, housing bearing looseness and rotor unbalance. In this study, an analysis of fault that occurred in electric motor has followed ISO 10816-3 Standard. Bring the used electric motors for testing and measuring the vibration of the electric motors by using the Spectrum Analysis & Field Balancing Analyzer model ADASH A440-VA4 Pro. The vibration results of 22kW, 55kW and 75kW motor imply the malfunction of bearing faults, housing bearing looseness, and rotor unbalance. The results obtained from the analysis will be used as references and guidelines for predictions of faults in the electric motors, including maintenance scheduling of electric motors.

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Dutta, Rukmi. "Maximising energy efficiency with electric motors". Open Access Government 39, n. 1 (10 luglio 2023): 554–55. http://dx.doi.org/10.56367/oag-039-10891.

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Maximising energy efficiency with electric motors Rukmi Dutta from the University of New South Wales discusses the mechanisms and efficiency potential of electric motor systems, looking at how electric motors work, efficiency and losses and improving overall system efficiency for electric motors. Increased industrial activities in developing economies like India, China, and many others will push the use of motors even further. Electrical motors are the powerhouse of the industrial world, she explains, discussing efficiently converting electrical energy into mechanical power. Many critical sectors use electrical motors, including industrial, commercial, residential, agricultural and transport. The worldwide growth of electrical motor-driven systems is predicted to double by 2040. Overall, UNSW Sydney’s Electrical Machines and Drive Systems research team is at the forefront and contributes to developing novel, highly efficient motors and drives suitable for many applications.

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Badarudin, R., D. Hariyanto, M. Ali e S. Meunmany. "Electric Machines Virtual Laboratory: Testing of DC Motor". Journal of Physics: Conference Series 2111, n. 1 (1 novembre 2021): 012041. http://dx.doi.org/10.1088/1742-6596/2111/1/012041.

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Abstract This article describes the realization of testing the characteristics of a DC motor on Simulink as a virtual laboratory. Testing of DC motors based on real conditions in a physical laboratory by combining two DC machines coupled to shafts including DC motors and DC generators. The types of DC motors tested include separately excited DC motors, shunt DC motors, and series DC motors. The implementation of the Simulink model adopts the wiring diagram in the real test. The test procedure is also adopted on the real test procedure. The data from the test results are made in DC motor characteristics graph. Virtual laboratory using Simulink can be used to realize DC motor testing, including test procedures, running no-load DC motors, increasing the load of DC motors with infinitely simulation features on Simulink. The results of the study show the characteristics of the experimental data for all types of DC motors tested according to the theory.

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Edwards, C. "More motor, less power [electric motors]". Engineering & Technology 7, n. 7 (2012): 86. http://dx.doi.org/10.1049/et.2012.0717.

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Fazdi, Mohamad Farid, e Po-Wen Hsueh. "Parameters Identification of a Permanent Magnet DC Motor: A Review". Electronics 12, n. 12 (6 giugno 2023): 2559. http://dx.doi.org/10.3390/electronics12122559.

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Since permanent magnet direct current (DC) motors are mainly used in various industrial automation applications, the demand for electric motors is increasing rapidly. However, in the mass production of electric motors, often, only random inspections are used to check the specifications and performance of electric motors. For manufacturing or engineering application staff to have a more thorough understanding of the characteristics of the motor, it is necessary to conduct a full or quick inspection during the production process to ensure the quality of the electric motor. Based on this, this literature review reveals several methods and algorithms often used to estimate DC motor parameters, given the importance of knowing the parameters of the DC motor and the lack of research on estimating the parameters of the DC motor.

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Alibeik, Maryam, e Euzeli C. dos dos Santos. "High-Torque Electric Machines: State of The Art and Comparison". Machines 10, n. 8 (30 luglio 2022): 636. http://dx.doi.org/10.3390/machines10080636.

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The state of the art of high-torque electric motors has been reviewed in this paper. This paper presents a literature review of high-torque density electric machines based on their airgap classifications, which brings a unique consideration to new design ideas to increase torque density. Electric machines are classified into three main groups based on their airgap configuration, i.e., (1) machines with a constant airgap, (2) machines with a variable airgap, and (3) machines with an eccentric airgap. This paper also presents the modeling of a high-torque airgap-less electric motor based on the concept of eccentric airgap. The torque density of this motor has been compared to motors available in the literature review. Among electrical motors with no permanent-magnet, airgap-less electric motors take the lead in terms of torque density, which is almost five times greater than the next motor, “in-wheel for electric vehicle”.

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Tesi sul tema "Electric motors"

Larsson, Martin. "Electric Motors for Vehicle Propulsion". Thesis, Linköpings universitet, Fordonssystem, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-103907.

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This work is intended to contribute with knowledge to the area of electic motorsfor propulsion in the vehicle industry. This is done by first studying the differentelectric motors available, the motors suitable for vehicle propulsion are then dividedinto four different types to be studied separately. These four types are thedirect current, induction, permanent magnet and switched reluctance motors. Thedesign and construction are then studied to understand how the different typesdiffer from each other and which differences that are of importance when it comesto vehicle propulsion. Since the amount of available data about different electricmotors turned out to be small a tool was developed to use for collecting data fromthe sources available which can be for instance product sheets or articles with informationabout electric motors. This tool was then used to collect data that wasused to create models for the different motor types. The created motor models foreach motor type could then be used for simulating vehicles to investigate how thespecific motor is suited for different vehicles and applications. The work also containsa summary of different electric motor comparison studies which makes it agood source of information during motor type selection in the process of designingan electric vehicle.

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Yang, Sichao. "In-wheel motors for electric vehicles". Thesis, University of Newcastle upon Tyne, 2017. http://hdl.handle.net/10443/4054.

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The in-wheel motor technology as the source of traction for electric vehicles has been researched recently because it is compact and ease-to-integrate. The motor is housed in the wheel. Since the room for the motor is tightly defined by the size of the wheel and there is no gearing system, the motor must have a high torque density to drive the vehicle directly and a high efficiency to keep cool. The existing motor uses a surface-mounted magnet topology. To make it more cost-competitive, the magnet material needs to be reduced while maintaining the torque performance at the rated operating condition. It is the motive of this Ph.D. research. The thesis starts with a brief introduction on the background of the electric vehicle. Then the major challenges of the in-wheel motor technology are summarised. With the derived specifications, an induction machine and a switched reluctance machine are then simulated and analysed. Still, the permanent magnet synchronous machine is proved to have the highest torque density. Change from surface-mounted to interior topology, six new magnet topologies are investigated. The V-shaped interior magnet topology shows superior torque-to-magnet-mass ratio and is easy-to-manufacture. It gives 96% torque while using 56% of the magnet mass compared to the existing motor due to the assist from the additional reluctance torque and the lower magnetic circuit reluctance. The key to use less magnet mass while avoiding the demagnetisation is the front iron shielding effect. The analytical explanation on the better resistance to demagnetisation in the V-shaped motor is provided. The magnet loss mechanism is discussed for proper segmentation. Detailed design adjustments are made to compromise between the torque-to-magnet-mass ratio and the manufactural practicality. Issues regarding to lower mechanical rigidity occurred in initial assembly of the prototype and solutions are proposed. Followed by successful assembly, experimental tests were conducted and results show good agreement with the simulation. A specific form of torque ripple is found in the V-shaped motor and occurs generally in all fractional-slot concentrated-winding machines with saliency. It is explained by an analytical model. This model is also extended to explain the generally lower reluctance torque in vi fractional-slot concentrated-winding machines. Potential design improvements are suggested and simulated for future versions.

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Lazhenko, A. S. "Electric Motors in Lives of People". Thesis, Київський національний університет технологій та дизайну, 2017. https://er.knutd.edu.ua/handle/123456789/8365.

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Verma, Sagar. "Deep Neural Network Modeling of Electric Motors". Electronic Thesis or Diss., université Paris-Saclay, 2023. http://www.theses.fr/2023UPAST088.

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Cette thèse traite de l’application des réseaux de neurones dans la résolution de problèmes liés aux moteurs électriques. Le chapitre 2 contribue à identiﬁer une structure de réseau de neurones capable d’apprendre la relation multi-variée entre diﬀérents signaux d’un moteur électrique. La structure identiﬁée est ensuite utilisée pour l’estimation vitesse- couple à partir des courants et des tensions.Le chapitre 3 se concentre sur la détection et la correction de défauts de mesure. Notre méthode prend en compte les défauts de capteurs électriques, les défauts mécaniques et l’estimation de température.Le chapitre 4 traite ensuite de la ﬁabilité de l’estimateur vitesse-couple en cas de courants et de tensions bruités. Nous présentons uneméthode de débruitage permettant de rendre notre estimateur vitesse-couple applicable dans un contexte réaliste. Ensuite, une rapide analyse de la robustesse face à une attaque adverse est menée pour les réseaux neuronaux utilisés dans des applications des moteurs électriques. La capacité de généralisation de l’estimateur vitesse-couple est également brièvement analysée. Dans le chapitre 5, nous nous concentrons sur le dernier obstacle à la mise en œuvre des réseaux de neurones: le coût de calcul. Nous présentons la méthode de sparsiﬁcation par inclusion sous-diﬀérentielle (SIS) permettant de trouver le meilleur réseau parcimonieux à partir de poids pré-calculés, tout en conservant la précision d’origine
This thesis deals with the application of neural networks in solving electrical motor problems. Chapter 2 contributes to identifying a neural network that can learn the multivariate relationship between diﬀerent electrical motor signals.The identiﬁed network is then used for speed-torque estimation from currents and voltages. Chapter 3 focuses on detecting and recovering from faulty measurements. Our method encompasses electrical sensor faults, mechanical faults, and temperature estimation.Chapter 4 then discusses the reliability of the speed-torque estimator in case of noisy currents and voltages. We presenta denoising method which allows our speed- torque estimator to be applicable in a realistic context. This is followed by an analysis of the adversarial robustness of the neural networks used in electrical motor tasks. The generalization capability of the speed-torque estimator is also brieﬂy considered. In Chapter 5, we focus on the ﬁnal roadblock in achieving real-world application of neural networks: computational requirements. We present the Subdiﬀerential Inclusion for Sparsity (SIS) method to ﬁnd the best sparse network from pretrained weights while maintaining original accuracy

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Groen, Benjamin Carson. "Investigation of DC Motors for Electric and Hybrid Electric Motor Vehicle Applications Using an Infinitely Variable Transmission". BYU ScholarsArchive, 2011. https://scholarsarchive.byu.edu/etd/2696.

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Since the early 1900's demand for fuel efficient vehicles has motivated the development of electric and hybrid electric vehicles. Unfortunately, some components used in these vehicles are expensive and complex. AC motors, complex electronic controllers and complex battery management systems are currently used in electric (EV) and hybrid vehicles. This research examines various motors and speed control methods in an attempt to help designers identify which motors would be best suited for an EV powertrain application. The feasibility of using DC motors coupled with an Infinitely Variable Transmission (IVT), to obtain an innovative new electric or hybrid electric powertrain is also presented. The results of this research include an extensive review of the many motor types including a comparison chart and motor hierarchy. An experiment was designed and built to test motorspeed control methods. Testing with two DC separately-excited motors and a differential as an IVT was also conducted. These tests revealed that field weakening appears to be a viable low-costspeed-control method. Testing of these motors, coupled with an IVT revealed that the output of a differential or planetary gear set can be controlled by varying the speed of the inputs. Combining this information in a product development mentality led to the concept of using one DC motor as a power or traction motor while another motor acts as a speed controller, with the method of speedcontrol on the speed control motor being field weakening. This concept allows most of the power to be delivered at an efficient rate with a simple form of speed control. This concept may also eliminate the need for expensive, complex electronic motor controllers. This approach could be used to improve the safety and reduce battery management requirements by lowering the operating voltage of the entire system.

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French, C. D. "Real-time control of electric drives". Thesis, University of Newcastle Upon Tyne, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.294867.

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Zhang, Ruoju, e 張若菊. "A new PM hybrid motor drive for electric vehicles". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2000. http://hub.hku.hk/bib/B31472849.

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Govindsamy, Matthew. "Sensorless speed estimation in three phase induction motors". Thesis, Port Elizabeth Technikon, 2002. http://hdl.handle.net/10948/139.

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This thesis proposes a technique to determine and improve the performance of a sensorless speed estimator for an induction motor based on Motor Current Signature Analysis (MCSA). The theoretical concepts underlying the parameter based observer are developed first and then the model of the observer is built using Simulink. The observer is developed based on Model Reference Adaptive System (MRAS). The dynamic performance of the observer and its behavior due to variation of machine parameters is studied. The error in speed estimated using this observer is shown and the ability of MCSA to retune the rotor speed from the stator current spectrum. The spectrum estimation technique has been implemented using a software routine in Matlab. Both the observer and MCSA techniques were implemented practically on an induction motor. The performance of the combined sensorless speed estimation system was tested and verified.

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Bassham, Bobby A. "An evaluation of electric motors for ship propulsion". Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2003. http://library.nps.navy.mil/uhtbin/hyperion-image/03Jun%5FBassham.pdf.

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Thesis (M.S. in Electrical Engineering)--Naval Postgraduate School, June 2003.
Thesis advisor(s): Robert Ashton, Todd Weatherford. Includes bibliographical references (p. 93-96). Also available online.

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Claassens, Andries Johannes. "Transient modelling of induction motors in a petrochemical plant using Matlab". Thesis, Stellenbosch : Stellenbosch University, 2008. http://hdl.handle.net/10019.1/20432.

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Thesis (MScIng)--University of Stellenbosch, 2008.
ENGLISH ABSTRACT: The behaviour of induction motors at a petrochemical plant under transient conditions was investigated with the view to improve plant immunity to voltage fluctuations. The benefits of using a phase-variable induction motor model rather than the simpler d-q models usually employed are investigated. A simplified model of the plant electrical distribution system was derived. Phase variable and d-q induction motor models were implemented as well as a synchronous generator model. Practical considerations precluded the use of commercial software for the simulation of transient conditions and a basic simulation program was developed using Matlab to evaluate the behaviour of the dynamic machine models and distribution system. It was established that the configuration of the installed re-acceleration system can be optimised to reduce the possibility of plant outages as a result of voltage fluctuations. It was found that the use of more detailed induction machine models provide valuable insight into system behaviour and is justified if accurate motor parameters are available or can be estimated. The simplified plant model yielded useful results and enabled the identification of incorrect system data. The investigation showed that Matlab is suitable for the rapid development of a basic transient simulation program that can be used to study the behaviour of different interconnected dynamic machine models.
AFRIKAANSE OPSOMMING: Die gedrag van induksiemotors in 'n petrochemiese aanleg onder oorgangstoestande is ondersoek ten einde die immuniteit van die aanleg vir spanningsfluktuasies te verbeter. Die voordele van die gebruik van 'n fase-veranderlike induksiemotor model eerder as die eenvoudiger d-q modelle wat normaalweg gebruik word is ondersoek. 'n Vereenvoudigde model van die aanleg se elektriese distribusiestelsel is afgelei. Faseveranderlike en d-q induksiemotor modelle is geimplementeer sowel as 'n sinkroongenerator model. Praktiese oorwegings het die gebruik van kommersiële programmatuur vir die simulasie van oorgangstoestande verhoed en 'n basiese program is in Matlab ontwikkel om die gedrag dinamiese masjienmodelle en die distribusiestelsel te evalueer. Daar is vasgestel dat die konfigurasie van die geinstalleerde herversnellerstelsel geoptimeer kan word om die moontlikheid van aanleg onderbrekings as gevolg van spanningsfluktuasies te verminder. Daar is gevind dat die gebruik van meer gedetaileerde induksiemasjien modelle waardevolle insig in die gedrag van die stelsel lewer en geregverdig is indien akkurate motorparameters beskikbaar is of afgeskat kan word. Die vereenvoudigde model van die aanleg het bruikbare resultate gelewer en die het die identifikasie van foutiewe stelseldata moontlik gemaak. Die ondersoek het getoon dat Matlab geskik is vir die snelle ontwikkeling van 'n basiese oorgangsimulasie program wat gebruik kan word om die gedrag van verskillende gekoppelde dinamiese masjienemodelle te bestudeer.

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Più fonti

Libri sul tema "Electric motors"

Cox, V. J. Electric motors. Hemel Hempstead: Nexus Special Interests, 1998.

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1929-, Miller Rex, a cura di. Electric motors. 5^a ed. New York: Macmillan Pub. Co., 1991.

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R, Miller Mark, e Anderson Edwin P. 1895-, a cura di. Electric motors. 6^a ed. Indianapolis, IN: Wiley Pub., 2004.

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Babington, Mary F., Matthew A. Carle, Eric A. Neumore e Laurel Brooks. Electric motors & generators. Cleveland: Freedonia Group, 1999.

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Mazur, Glen. Troubleshooting electric motors. Homewood, IL: American Technical Publishers, 1993.

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Keljik, Jeff. Electric motors and motor controls: Instructor's guide. 2^a ed. Clifton Park, NY: Thomson Delmar Learning, 2007.

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1923-, Engelmann Richard H., e Middendorf William H, a cura di. Handbook of electric motors. New York: M. Dekker, 1995.

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Giri, Fouad, a cura di. AC Electric Motors Control. Oxford, UK: John Wiley & Sons Ltd, 2013. http://dx.doi.org/10.1002/9781118574263.

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1918-, Andreas John C., a cura di. Energy-efficient electric motors. 3^a ed. New York: Marcel Dekker, 2005.

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Winsett, Ivan. Basics of electric motors. Winterville, Georgia: AAVIM, 2002.

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Capitoli di libri sul tema "Electric motors"

Jufer, Marcel. "Motors". In Electric Drives, 41–86. Hoboken, NJ USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118622735.ch4.

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Jufer, Marcel. "Motors". In Electric Drives, 87–100. Hoboken, NJ USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118622735.ch5.

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Paluszek, Michael, e Stephanie Thomas. "Electric Motors". In MATLAB Recipes, 177–203. Berkeley, CA: Apress, 2015. http://dx.doi.org/10.1007/978-1-4842-0559-4_8.

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Roth, Lawrence O., e Harry L. Field. "Electric Motors". In An Introduction to Agricultural Engineering: A Problem-Solving Approach, 323–30. Boston, MA: Springer US, 1991. http://dx.doi.org/10.1007/978-1-4684-1425-7_28.

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Roth, Lawrence O., e Harry L. Field. "Electric Motors". In Introduction to Agricultural Engineering, 323–30. Boston, MA: Springer US, 1992. http://dx.doi.org/10.1007/978-1-4615-3594-2_28.

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Field, Harry L., e John M. Long. "Electric Motors". In Introduction to Agricultural Engineering Technology, 391–99. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-69679-9_28.

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Lemmens, Joris, e Wim Deprez. "Electric Motors". In Electrical Energy Efficiency, 189–228. Chichester, UK: John Wiley & Sons, Ltd, 2012. http://dx.doi.org/10.1002/9781119990048.ch7.

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Vepa, Ranjan. "Electric Motors". In Electric Aircraft Dynamics, 11–28. First edition. | Boca Raton, FL : CRC Press, 2020.: CRC Press, 2020. http://dx.doi.org/10.1201/9780429202315-2.

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Franchi, Claiton Moro. "Electric Motors". In Electrical Machine Drives, 1–37. 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, 2019. http://dx.doi.org/10.1201/b22314-1.

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Kitcher, Christopher. "Electric motors". In Electricians’ On-Site Companion, 136–41. New York, NY : Routledge, 2018.: Routledge, 2017. http://dx.doi.org/10.1201/9781315544571-17.

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Atti di convegni sul tema "Electric motors"

Wills, Jackson, e Perry Y. Li. "Electric and Hydraulic Propel Torque Modulation for a Compact Track Loader With the Hybrid Hydraulic Electric Architecture (HHEA)". In ASME/BATH 2023 Symposium on Fluid Power and Motion Control. American Society of Mechanical Engineers, 2023. http://dx.doi.org/10.1115/fpmc2023-112035.

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Abstract The Hybrid Hydraulic Electric Architecture (HHEA) has previously been proposed for off-highway vehicles to reap the efficiency and controllability benefits of electrification without needing very large electric motors. This is achieved with the use of a set of selectable common pressure rails to transmit the majority of power and small electric motors to modulate that power. Previous work has shown significant energy savings for the work circuits of a variety of machines. In this paper, the energy saving potential of HHEA for the propel circuit of a compact track loader is studied. The ports of the track hydraulic motors are selectably connected to the common pressure rails, and instead of using the electric assist motors to buck/boost pressure, as in HHEA for linear actuators, small electric assist motors are used to add/subtract torque directly. The interplay between the torque limits of the electric motors and the ability of the hydraulic motor to vary displacements is studied, along with the effect these factors have on energy saving potential. It is found that the ability to vary the displacement of the hydraulic motor allows for: more efficient electric motor operating conditions, reduced electric torque requirement, and reduced pressure rail switching events. All three of these advantages can be achieved at once using variable displacements; but trade-offs exist between these advantages (i.e. improved efficiency can be achieved at the expense of a larger electric torque requirement). Overall, the HHEA can reduce energy consumption by ∼ 36% compared to the stock machine, depending on the hydraulic motor’s ability to vary displacements, and assuming the electric motor torque is limited to 20% of that required in a direct electrification scheme.

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Raja, Selvakumar, Sasikumar Nandagopal, S. Jenoris Muthiya, Sathish Kumar R, Nakandhrakumar R. S PhD, Bilu JOHN, Abdul Umar, Aadithian Sankar, Karri Tyaga Raju e Kaviarasan Balasubramaniam. "Thermal Analysis of an Electric Motor in an Electric Vehicle". In WCX SAE World Congress Experience. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2023. http://dx.doi.org/10.4271/2023-01-0532.

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<div class="section abstract"><div class="htmlview paragraph">Parametric thermal analysis of permanent magnet synchronous motor by considering real time driving cycle is presented. As driving motors of electric vehicle, permanent magnet motors exhibit high efficiency and high power density. However, they are susceptible to suffer irreversible demagnetization and insulation failure of coils under severe thermal condition. Therefore, it is essential to precisely predict heat losses and temperature distribution in driving motors under real time driving cycle. The thermal behavior of the driving motor is analyzed by means of thermal parametric methods. Here we are using simulation software to measure the temperature distribution and heat losses in the Driving motor, when an electric motor is operated for a certain amount of time the motor produces heat because of the Heat produced by the motor the performance, efficiency and reliability of the motor is affected.</div><div class="htmlview paragraph">Performing the Analysis method on the Motor that is designed according to the parameters such as power output, Torque, Efficiency, Reliability, and Sustainability. Design Required Cooling System for the Electric Motor for EV application. By Designing an Appropriate Cooling System we can Easily Dissipate the Heat that is produced by the motor and we can also see improvement in performance, Sustainability, Torque Efficiency and other parameters that are affected by the Heat produced by the Electric motor.</div></div>

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Adams, Robert, Jinjiang Xiao, Michael Cross e Max Deffenbaugh. "Switched Reluctance Motor for Electric Submersible Pump". In 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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Zhang, Guoguang, Hui Zhang, Junmin Wang, Hai Yu e Roger Graaf. "Actuator Fault Sensitivity Analysis for In-Wheel Motor Electric Ground Vehicle With Active Steering System". In ASME 2014 Dynamic Systems and Control Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/dscc2014-6035.

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This paper presents the sensitivity analyses on vehicle motions with regard to faults of in-wheel motors and steering motor for an electric ground vehicle (EGV) with independently actuated in-wheel rear motors. Based on the vehicle model, direct method is applied to determine, to what extent, that different actuator faults affect vehicle motions such as the longitudinal velocity, lateral velocity, and yaw rate. For motion indices like vehicle sideslip angle and longitudinal acceleration, linearizations around equilibrium points are conducted and their sensitivities to actuator faults are analyzed. Results show that all mentioned vehicle motions are more sensitive to the fault of steering motor than that of in-wheel motors. In addition, the effects on vehicle motions due to four types of faults, i.e. additive, loss-of-effectiveness, time-varying-gain and stuck-at-fixed-level faults, are examined through CarSim® simulations and vehicle experiments under a representative maneuver.

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Hajek, Vitezslav, Martin Mach e Leos Kuchar. "Special small electric motors". In 2015 International Conference on Electrical Drives and Power Electronics (EDPE). IEEE, 2015. http://dx.doi.org/10.1109/edpe.2015.7325309.

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Williams, Logan T. "Performance and Selection of Brushless DC Motors for Miniature Hydraulic Powertrains". In BATH/ASME 2020 Symposium on Fluid Power and Motion Control. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/fpmc2020-2761.

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Abstract Increased interest in battery-powered hydraulic quadrupeds at the US Naval Research Laboratory has created demand for compact hydraulic power units with electric prime movers. Brushless DC (BLDC) motors are compact, high-power systems that can provide the shaft power for a hydraulic pump. The remote-control hobby industry offers a wide range of low-cost BLDC motors that can be utilized for miniature, power-dense hydraulic powertrains. However, most of these motors are sold with minimal specifications that prevent accurate prediction of the motor performance, impeding precise motor selection. An analytical model has been developed to provide an upper bound on a motor’s performance based on the motor constant and the motor phase impedance. Experimental performance of multiple motors are used to validate the model and demonstrate its efficacy for motor selection.

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"Electric Flight Technology". In Default for White Papers. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2017. http://dx.doi.org/10.4271/wp-0002.

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<div class="section abstract">The environmental impact of hydrocarbon-burning aircraft, both from the perspective of gas emissions and that of noise, is one of the main motivations for the move to electric propulsion. The added benefit from this shift to electric propulsion is that it has resulted in lowering the costs of electrical components such as motors, power electronic (PE) circuits, and batteries that are essential to this technology. This white paper seeks to explore the history, architecture, electrical components, and future trends of electric flight technology.</div>

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ullah, Safa. "Choosing the Right Drive: In-depth Motor Selection for Electric Vehicle Traction Systems". In International Conference on Cutting-Edge Developments in Engineering Technology and Science. ICCDETS, 2024. http://dx.doi.org/10.62919/fhfd2182.

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The selection of an appropriate motor for electric vehicle (EV) traction systems is a critical engineering decision that influences the overall performance, efficiency, and sustainability of electric vehicles. This paper presents an in-depth analysis of various motor types used in EV traction systems, including permanent magnet synchronous motors (PMSM), induction motors, switched reluctance motors, and synchronous reluctance motors. The study systematically evaluates these motors based on key parameters such as torque density, efficiency, cost, thermal characteristics, and control complexity. By comparing these attributes in the context of real-world operational demands of electric vehicles, the paper aims to guide engineers and designers in selecting the most suitable motor type for specific EV applications. Additionally, the paper discusses the impact of recent advances in materials science, particularly in magnet technology and power electronics, on the performance improvements of EV motors. The findings suggest that while PMSM offers high efficiency and performance, the choice of motor may vary significantly based on application-specific requirements such as range, load conditions, and cost constraints. This comprehensive overview assists stakeholders in making informed decisions about motor selection to enhance the development of more robust, efficient, and cost-effective electric vehicles.

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S, Mohana Devi, e V. Bagyaveereswaran. "Electric Motor Systems: Relative Study on Diverse Motors in the Electric Vehicles". In 2023 Innovations in Power and Advanced Computing Technologies (i-PACT). IEEE, 2023. http://dx.doi.org/10.1109/i-pact58649.2023.10434509.

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Hosek, Martin, Jayaraman Krishnasamy, Sripati Sah e Taylor Bashaw. "Spray-Formed Hybrid-Field Electric Motor". In ASME 2016 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/detc2016-59339.

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A new class of electric motors with hybrid-field topology is introduced. Departing from conventional radial- or axial-field designs, the motors feature three-dimensional magnetic flux paths, which are enabled by an advanced isotropic soft magnetic material produced by a unique additive-manufacturing process based on spray forming. The motors provide considerably higher power output (40% higher power density) and improved energy efficiency (up to 15% lower losses) compared to the state of the art. A prototype spray-formed hybrid-field motor has been designed and constructed, and the size, power and efficiency benefits have been demonstrated.

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Rapporti di organizzazioni sul tema "Electric motors"

Rasinski, Timothy. NVLAP efficiency of electric motors. Gaithersburg, MD: National Institute of Standards and Technology, aprile 2020. http://dx.doi.org/10.6028/nist.hb.150-10-2020.

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Shoykhet, B., R. Schiferl, R. Duckworth, C. M. Rey, S. W. Schwenterly e M. J. Gouge. Development of Ulta-Efficient Electric Motors. Office of Scientific and Technical Information (OSTI), maggio 2008. http://dx.doi.org/10.2172/973932.

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Batzel, Todd D. Sensorless Electric Drive for Permanent Magnet Synchronous Motors. Fort Belvoir, VA: Defense Technical Information Center, ottobre 1999. http://dx.doi.org/10.21236/ada370401.

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Narumanchi, S., K. Bennion, D. DeVoto, G. Moreno, J. Rugh e S. Waye. Advanced Power Electronics and Electric Motors Annual Report -- 2013. Office of Scientific and Technical Information (OSTI), gennaio 2015. http://dx.doi.org/10.2172/1169768.

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Galowin, Lawrence S., Walter J, Jr Rossiter e Wiley A. Hall. National voluntary laboratory accreditation program: efficiency of electric motors. Gaithersburg, MD: National Institute of Standards and Technology, 1995. http://dx.doi.org/10.6028/nist.hb.150-10.

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Langhe, Deepak, Lei Zhu, Michael Brubaker e Laura Marlino. Multilayered Film Capacitors for Advanced Power Electronics and Electric Motors for Electric Traction Drives. Office of Scientific and Technical Information (OSTI), dicembre 2017. http://dx.doi.org/10.2172/1492686.

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Rogers, Susan A. FY2011 Advanced Power Electronics and Electric Motors Annual Progress Report. Office of Scientific and Technical Information (OSTI), gennaio 2012. http://dx.doi.org/10.2172/1219525.

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Rogers, Susan A. FY2012 Advanced Power Electronics and Electric Motors Annual Progress Report. Office of Scientific and Technical Information (OSTI), marzo 2013. http://dx.doi.org/10.2172/1219997.

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Villaran, M., e M. Subudhi. Aging assessment of large electric motors in nuclear power plants. Office of Scientific and Technical Information (OSTI), marzo 1996. http://dx.doi.org/10.2172/221038.

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