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Dissertations / Theses on the topic 'Induction motor efficiency'

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Published: 3 June 2025

Last updated: 31 July 2025

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1

Johnson, Andrew P. (Andrew Peter). "High speed linear induction motor efficiency optimization." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/10945/11052.

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CIVINS<br>CIVINS<br>One of the reasons linear motors, a technology nearly a century old, have not been adopted for a large number of linear motion applications is that they have historically had poor efficiencies. This has restricted the progress of linear motor development. The concept of a linear motor as a rotary motor cut and laid out flat with a conventional rotary motor control scheme as a design basis may not be the best way to design and control a high-speed linear motor. End effects and other geometry subtleties of a linear motor make it unique, and a means of optimizing efficiency wi

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2

Kneebone, Nigel J. "Efficiency and speed control of three-phase induction motors." Thesis, University of Reading, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.277167.

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3

Mzungu, Heskin Mkando. "Impact of armature rewinding on induction motor efficiency in South Africa." Master's thesis, University of Cape Town, 2009. http://hdl.handle.net/11427/8936.

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Includes bibliographical references (p. 162-168).<br>The aim of this thesis is to evaluate the impact of armature rewinding on the efficiency of Low Voltage (LV) industrial squirrel cage induction motors in South Africa. The efficiency of an electric motor is a measure of the effectiveness of the motor to convert electrical power at its terminals to mechanical power at its shaft. Although the definition is seemingly simple and straightforward, the determination of the efficiency of an induction motor is a much-debated topic. Motor manufacturers provide efficiency data obtained through measurem

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4

Aminu, Muhammad. "Development of new methods for nonintrusive induction motor energy efficiency estimation." Doctoral thesis, Faculty of Engineering and the Built Environment, 2020. http://hdl.handle.net/11427/32440.

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Induction motors (IMs) are the most widely used motors in industries. They constitute about 70% of the total motors used in industries and are the largest energy consumers in industrial applications. As a result of the increasing need for energy savings and demand-side management, the development of methods for accurate energy efficiency estimation has become a crucial area of research. While several methods have been proposed for induction motor efficiency determination, majority of the methods cannot be easily applied in the field owing to the intrusive nature of the test procedures involved

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5

RODRIGUEZ, GALLEGO ALBERTO. "Design and Optimization of an IE44-pole 7.5 kW Induction Motor." Thesis, KTH, Elektrisk energiomvandling, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-160702.

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In this thesis, a High Efficiency (IE2), 7.5 kW, 4-pole, induction motor (IM) is studied and redesigned using finite element method (FEM) software with the purpose of increasing its efficiency to the new Super Premium Efficiency (IE4) level. First, a pre-existing model of the motor is analyzed and improved. Then, different methods to improve the efficiency of the motor are investigated and the performance of the machine is studied after each modification. Thirdly, a complete optimization of the design is carried out with the goal of developing an IE4 IM compatible with IEC standard frames. Fin

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6

Khoury, Gabriel. "Energy efficiency improvement of a squirrel-cage induction motor through the control strategy." Phd thesis, Toulouse, INPT, 2018. http://oatao.univ-toulouse.fr/19777/1/Gabriel_Khoury.pdf.

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Energy efficiency optimization of electric machines is an important research field and is part of the objectives of several international projects such as the European Commission Climate and Energy package which has set itself a 20% energy savings target by 2020, and was extended for 2030 with higher targets. Therefore, this thesis proposes an efficiency optimization method of the Induction Machine (IM) through the variation of the control parameters. To achieve this goal, the flux in the airgap is modified according to an optimal flux table computed off-line for all possible operating points.

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7

McKinnon, Douglas John Electrical Engineering &amp Telecommunications Faculty of Engineering UNSW. "Novel efficiency evaluation methods and analysis for three-phase induction machines." Awarded by:University of New South Wales. Electrical Engineering and Telecommunications, 2005. http://handle.unsw.edu.au/1959.4/21869.

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This thesis describes new methods of evaluating the efficiency of three-phase induction machines using synthetic loading. Synthetic loading causes the induction machine to draw full-load current without the need to connect a mechanical load to the machine's drive shaft. The synthetic loading methods cause the machine to periodically accelerate and decelerate, producing an alternating motor-generator action. This action causes the machine, on average over each synthetic loading cycle, to operate at rated rms current, rated rms voltage and full-load speed, thereby producing rated copper losses,

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8

Cornwell, William Lincoln. "Switching Frequency Effects on Traction Drive System Efficiency." Thesis, Virginia Tech, 2002. http://hdl.handle.net/10919/34983.

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Energy demands are steadily increasing as the world's population continues to grow. Automobiles are primary transportation means in a large portion of the world. The combination of fuel consumption by automobiles along with the shrinking fossil fuel reserves makes the development of new more energy efficient technologies crucial. Electric vehicle technologies have been studied and are still being studied today as a means of improving fuel efficiency. To that end, this work studies the effect of switching frequency on the efficiency of a hybrid electric vehicle traction drive, which contain

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9

Redgate, John. "Dynamic tracking of a cage induction motor operating at maximum efficiency in an electric vehicle." Thesis, Nottingham Trent University, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.436676.

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10

Brandt, Rodrigo. "Análise de métodos de baixa intrusividade para estimativa da eficiência de motores trifásicos de indução." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2011. http://hdl.handle.net/10183/32592.

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As características de desempenho dos motores trifásicos de indução são fundamentais para estudos de viabilidade econômica, tanto para a manutenção como para a substituição por motores que apresentem melhor rendimento, visando à economia de energia. Existem diversos procedimentos para determinar o desempenho das máquinas de indução, no entanto, são procedimentos baseados em ensaios que exigem o desacoplamento mecânico, comprometendo assim a praticidade, sem contar no custo da instrumentação envolvida. Este trabalho apresenta o estudo e implementação de dois métodos distintos para estimar o rend

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11

Deshmukh, Ram Raghotham Rao. "Voltage harmonics analysis and efficiency of three-phase induction motor with change in coil pitch of the stator winding." Thesis, Cardiff University, 2006. http://orca.cf.ac.uk/56143/.

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Variable speed drives employing induction motors have been widely used in industry for decades. Today there is a continually increasing demand for more precise and flexible speed control usually with close attention to energy efficiency. The inverter is used because of its reliability, flexibility and relatively low cost. However its output a.c. voltage is not sinusoidal so the core losses in the induction motors consequently increase. This research is centred on the design and testing of the stator winding configuration of three phase induction motors with various coil pitches and measure the

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12

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 amo

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13

Seyed, Hossein Seyed Sharafedin. "Control of an inverter driven induction motor : optimisation of the efficiency of an inverter driven induction motor over a wide range of loads and speeds by a microprocessor-based slip and power measurement system." Thesis, University of Bradford, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.358911.

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14

Feldman, R. G. "An improvement to standard polyphase induction motor efficiency tests using a precision measurement technique for online stator winding resistance measurement." Thesis, University of Nottingham, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.493345.

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This thesis provides an investigation into the online measurement of stator winding resistance and presents a procedure designed to be used and comply with standard polyphase induction motor efficiency tests.

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15

Souza, Danilo Ferreira de. "Uma avaliação do desempenho de motores elétricos de indução trifásicos comercializados no Brasil entre 1945-2016 e o impacto da legislação brasileira." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/106/106131/tde-11072018-185050/.

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O motor de indução trifásico foi o elemento principal de aumento de produtividade na segunda revolução industrial no final do século XIX na Europa e nos Estados Unidos. Atualmente, em termos mundiais, é a principal carga nos sistemas elétricos, chegando a atingir mais de 65% do consumo no Brasil. Durante o século XX, os motores elétricos sofreram intensos processos de inovações tecnológicas que possibilitaram significativos ganhos de rendimento. Assim, inicialmente, esta dissertação analisa o rendimento de 419 motores elétricos com potência mecânica de 5 CV, 50 CV e 200 CV, de fabricação nacio

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16

Fiala, Petr. "Vlastnosti asynchronního motoru napájeného z frekvenčního měniče." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2016. http://www.nusl.cz/ntk/nusl-242017.

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This master’s thesis studies additional losses generated in the induction motor powered from inverter. The first chapter was used for literature search and it mentions valuable publications. The second chapter discusses the different types of losses in the induction motor. The third chapter describes other negative effects on motor caused by inverter, the fourth one defines possible measuring methods, which would lead to the quantification of additional losses. The fifth chapter introduces the electromotor tested as well as the measuring instruments used. The last chapter presents pivotal resu

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17

Suarez, Freile Daniel A. "Use of Soft Magnetic and Carbon Nanotube Composites in Electromagnetic Cores." University of Cincinnati / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1627661121142792.

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18

Mingardi, Damiano. "Analysis, design and test of high efficiency electrical machines with a rotor winding." Doctoral thesis, Università degli studi di Padova, 2017. http://hdl.handle.net/11577/3422394.

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This thesis deals with the analysis, design and test of three-phase high efficiency electrical motors, with particular reference to motors with a rotor winding. At first, the background and the motivations of this work are described. The bibliography on the subjects is deeply examined and a selection of the most relevant papers can be found in the reference. In this scenario, the main objective of this thesis are illustrated. The Line-Start (LS) Synchronous Machine (SyM) design is a subject under investigation since the beginning of the last century, when solid state power converters was not

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19

Facco, José Henrique. "Ações de conservação de energia aplicadas a uma planta industrial composta de motores de indução." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/18/18154/tde-03102006-201142/.

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O presente trabalho objetiva, a partir de dados coletados dos motores elétricos em regime de trabalho, dar sua contribuição ao estudo de conservação de energia elétrica numa planta industrial. Apresenta-se o motor elétrico trifásico de indução e as diversas questões relativas ao seu uso industrial, para então, demonstrarem os parâmetros elétricos obtidos. Elaborou-se um trabalho de campo, que possibilita à análise da eficiência energética no uso de motores elétricos em uma fábrica de papel e cosméticos. A partir de medidas dos parâmetros elétricos como: corrente e tensão, mais os dados de catá

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20

Muczka, Vojtěch. "Zvýšení účinnosti jednofázového asynchronního motoru." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2018. http://www.nusl.cz/ntk/nusl-377331.

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This thesis is dedicated to efficiency increase of one phase induction machine through material change of induction cage and rotor slot shape optimization under the condition of maintaining the same locked-rotor torque. In the first part of this thesis is the explanation of induction machine principles. Next is the comparison of measured and simulated parameters of small one phase machine from ATAS company. The following part is dedicated to the analysis of rotor slot shape and ring size influence on machine parameters when using pure aluminum instead of resistive alloy. The next chapter deals

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21

Mach, Martin. "Analýza ztrát asynchronních motorů malého výkonu." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2016. http://www.nusl.cz/ntk/nusl-234568.

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The main objects of this doctoral thesis are analysis of a small induction motor losses and research of ways how to reduce losses and increase efficiency of this motor. The ways how to reduce losses and increase efficiency under study are as follow: reduction of stator winding’s resistance, lengthening of magnetic circuit, modification of turn number, cooper squirrel cage, slots shape optimization, sheets annealing and use of sheets with lower specific losses. The losses analysis and the research of ways how to reduce losses are done due to laboratory work. For this laboratory work, eleven dif

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22

Binek, Martin. "Optimalizace magnetického obvodu klasického asynchronního motoru při napájecí frekvenci do 210 Hz." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2019. http://www.nusl.cz/ntk/nusl-399567.

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This master’s thesis first deals with the theory concerning induction motor. It briefly desbribes the construction of three-phase induction motors, the generation of tractive force, power flow with loss distribution and also torque characteristic. In the next part an analytical calculation of the parameters of equivalent circuit for an existing induction motor with known dimensions is performed. After the calculation it is possible to find out the rated parameters of the motor, which makes it possible to further compare results with the values obtained by other methods. The next step was to cr

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23

Jedlička, Lukáš. "Optimalizace malého asynchronního motoru." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2019. http://www.nusl.cz/ntk/nusl-401965.

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The goal of this thesis is to improve efficiency of an induction motor. In the first part, the working principle is described. The next part deals with the origin of losses and possible solutions to decreasing losses without impacting the production possibles. The third part of the thesis is focused on the calculation of parameters of a small serial production motor. In the fourth part, these parameters are verified using the analytical tool RMxprt which is included in Ansys Maxwell. The fifth chapter deals with the optimization using Matlab genetic algorithm. In the final chapter, the design

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24

McClay, Catherine I. "Efficiency improvement of cage induction motors." Thesis, University of Cambridge, 1996. https://www.repository.cam.ac.uk/handle/1810/272668.

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25

Lu, Bin. "Energy Usage Evaluation and Condition Monitoring for Electric Machines using Wireless Sensor Networks." Diss., Georgia Institute of Technology, 2006. http://hdl.handle.net/1853/14152.

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Energy usage evaluation and condition monitoring for electric machines are important in industry for overall energy savings. Traditionally these functions are realized only for large motors in wired systems formed by communication cables and various types of sensors. The unique characteristics of the wireless sensor networks (WSN) make them the ideal wireless structure for low-cost energy management in industrial plants. This work focuses on developing nonintrusive motor-efficiency-estimation methods, which are essential in the wireless motor-energy-management systems in a WSN architecture t

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26

Janáček, Martin. "Energetické parametry jednofázových asynchronních motorů." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2016. http://www.nusl.cz/ntk/nusl-242197.

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The master's thesis deals and introduces a single-phase inductions machines, the principle of operation, types of design and operating conditions. This thesis includes analysis of individual losses in the machine and reduce the possibility of different ways. After a theoretical proposal for reducing losses are measured by mass-produced single-phase induction machine. Further machine modifications proposed for reducing losses in the stator windings and designed a prototype machine with the adjustment of the magnetic circuit to reduce iron losses made by ATAS elektromotory Nachod a.s. The result

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Procházka, Petr. "Využití palivových článků v trakčních pohonech." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2010. http://www.nusl.cz/ntk/nusl-233520.

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The main goal of the work is development of the electric car with fuel cells. The whole complex drive will be optimized with respect of minimal consumption of the energy due to achievement of the maximal range of the car. The first part of the work deals with definition of the parameters of the whole drive in dependence of various operating state of the car. The second part describes some acceptable realizations of the traction drive. The most suitable solution was chosen for realization of the small electric car. The third part deals with principle of the minimization of the losses of the asy

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28

Mushenya, John. "Energy efficiency analysis of converter-fed induction motors." Master's thesis, University of Cape Town, 2018. http://hdl.handle.net/11427/29301.

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Electric motor systems are the largest consumers of industrial electrical energy. As Variable Speed Drives continue to dominate various industrial processes, there is need for stakeholders to fully understand and quantify the converter-fed motor losses over a wide range of operating conditions. Such knowledge is crucial for both manufacturers and end-users in performing energy-efficiency optimizations for motor-drive applications. Although there is an increase in legislative activities, particularly in Europe, toward classification and improvement of energy efficiency of electric motor-drive s

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Lokaj, Jakub. "Teslova bezlopatková turbina." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-254360.

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The diploma thesis describes design of bladeless machine known as a Tesla turbine. The work is divided into theoretical part, practical part involving the design and experimental measurements of made bladeless turbine and a final assessment of thesis. The theoretical part deals with the basic design features of bladeless machines and their design modifications and flow in the nozzles. Furthermore there is a dedicated part of the dynamics of working fluid in the rotor of bladeless turbine represented by CFD modeling. The practical part includes the design and construction of parts of the turbin

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30

Ali, Salah Abid Mohammed. "Power factor and efficiency improvement in 3 phase power controlled drives." Thesis, University of Salford, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.239960.

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31

Wu, Zhan-Yuan. "Energy efficient PWM induction machine drives for electric vehicles." Thesis, University of Sheffield, 2000. http://etheses.whiterose.ac.uk/14622/.

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The viability of any electric vehicle is critically dependent on it having an acceptable range between charges, a feature which is ultimately dictated by the capacity of the battery energy store. Considerable improvements in vehicle range are possible, however, by ensuring the most effective use of this limited energy resource through the minimisation of the losses in the electric drive-train, i.e. the combined machine and power electronic controller. A particular consideration is that, for the majority of the time, the electric drive-train will be operating at part load. The thesis investigat

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Magill, Robert Joseph. "Efficiency and loss evaluation of induction motors for variable speed drives." Thesis, University of Nottingham, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.367160.

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33

Vácha, Pavel. "Výpočet jednofázového asynchronního motoru." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2011. http://www.nusl.cz/ntk/nusl-219186.

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The master´s thesis deal with the thesis of a single-phase induction motor that is more and more used all over the world. Its aim is assembling the information about this type of motor and its calculation. The content of the first part is the theoretical analysis of a single-phase induction motor and acquirement ways of the stroke moment. Than the work contains a project of basic schema of the single-phase induction motor with an auxiliary phase. The practical part is devoted to an elaboration of demonstration example of the single-phase induction motor with concrete parameters calculation, it

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Halfar, Lukáš. "Automatizované měření asynchronního motoru pomocí LabVIEW." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2016. http://www.nusl.cz/ntk/nusl-242151.

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The main purpose of the thesis Automatic measurement of induction machine using LabVIEW was to develope an automated measuring system, which is used to perform tests of induction motors. The algorithm of the system is programmed in LabVIEW. In the practical part of this thesis, a measurement of the motor Atas Elektromotory Náchod a.s. T22VT512 is carried out, in order to verificate functions of the algorithm, and to perform tests of the motor to analyse losses. Another part of the work is dedicated to the electromagnetic calculation of the motor T22VT512. For this purpose, two softwares with d

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Younsi, Mohamed Omar. "Analyse, diagnostic et optimisation énergétiques d'un parc de machines électriques sur site industriel." Thesis, Artois, 2017. http://www.theses.fr/2017ARTO0211/document.

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Les moteurs électriques sont responsables de 67% de la consommation d’électricité dans l’industrie. Remplacer les moteurs installés par des entrainements plus efficients requiert de statuer sur leur adéquation avec les charges qu’ils entrainent. Une contrainte forte est de les analyser « on-line » et sans mesures intrusives ni consignations des installations.Cette thèse répond à un triple objectif. Premièrement, un dispositif de diagnostic « non-invasif » facilement intégrable en milieu industriel a été développé avec quatre méthodes d’évaluation du niveau de charge des moteurs asynchrones dir

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Issa, Rihman H. "An investigation of efficient control strategies for a PWM inverter driven induction motor." Thesis, Loughborough University, 1987. https://dspace.lboro.ac.uk/2134/11783.

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Recent developments in power electronics switching devices have led to significant improvements in AC drives which, coupled with the obvious advantages of squirrel-cage induction motors, have generated a customerled demand for an increase in AC drive performance. This thesis describes the design and construction of a 3-phase pulsewidth modulated inverter using gate turn-off (GTO) thyristor switching devices, which drives a 0.75 kW 3-phase squirrel-cage induction motor. The inverter control circuit comprises a purpose-built large-scale integrated circuit, which generates the 3-phase pwm drive s

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Anyang, Ernest Ohene. "The impact of variable speed drives on energy efficient induction motors." Master's thesis, University of Cape Town, 2011. http://hdl.handle.net/11427/10028.

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Includes abstract.<br>Includes bibliographical references.<br>In an era when the world is faced with diminishing resources and energy security concerns, the slightest energy savings can prove essential in energy conservation. Induction motors and motorised loads consume an estimated 60% of the total energy required in the South African industry. This figure stands at 40% worldwide. Energy Efficient induction motors have proven to be an effective solution in the quest to reduce energy consumption. In South Africa, there have been efforts to replace the standard motors already in operation with

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38

Cao, Wenping. "Accurate measurement and evaluation of losses and efficiency of new and rewound induction motors." Thesis, University of Nottingham, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.411493.

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39

Joshi, Makarand Madhav. "A user interactive design procedure for an efficient tubular linear induction motor for pneumatic capsule pipeline systems." Diss., Columbia, Mo. : University of Missouri-Columbia, 2006. http://hdl.handle.net/10355/5910.

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Thesis (M.S.)--University of Missouri-Columbia, 2006.<br>The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file viewed on (February 26, 2007) Includes bibliographical references.

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Qasim, Mohammad Mowafaq. "Design of efficient, cost effective three phase induction motors for ceiling fans in India." Thesis, Massachusetts Institute of Technology, 2019. https://hdl.handle.net/1721.1/122766.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2019<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 165-170).<br>In developing economies such as India, improving the efficiency of home appliances is of high priority in locations which are characterized by a weak electric distribution system. Ceiling fans are one of the most used home appliances in India. They typically operate for many hours, and since most of them are driven by inefficient, low cost single phase induction motors, the total

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Štaffa, Jiří. "Ztráty jednofázového asynchronního motoru s trvale připojeným kondenzátorem." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2015. http://www.nusl.cz/ntk/nusl-221263.

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This project deals with increasing efficiency of one phase induction motor with permanent split capacitor. We can whole thesis divide into two parts, the first one is basic and the second is interested in analysis and measurement. First part handles with construction of single phase induction motor, explanation of function principle, start and run of motor. Calculating of efficiency including type of losses, which reduce efficiency. Second part concerns analysis losses including moment load characteristic, motor measurement while rotor is locked, with no load operation, measuring mechanical an

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Granata, John A. (John Anthony). "A test platform for measuring the energy efficiency of AC induction motors under various loading conditions and control schemes/." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/76911.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, June 2012.<br>"May 2012." Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 63).<br>A test platform was developed to measure and compare the energy efficiency of an AC induction motor under steady-state and cyclical loading conditions while operating in both a constant speed mode and while performing speed to speed transitions. The details of the construction are provided. The motor under test is fully characterized and modeled in order to establish theo

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Halfar, Tomáš. "Zlepšení energetických parametrů asynchronních strojů malého výkonu." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2013. http://www.nusl.cz/ntk/nusl-219929.

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The master’s thesis Improvement power parameter of small induction motors deals with issues of lowering the losses of small induction motors. The first part introduces with design and principles of operation of induction motors. Also introduces to theoretical problematic of losses, their lowering and measuring. In the practical part there are results of the measuring the losses in the induction motor ATAS Elektromotory Náchod a.s. T22VT512 (71-0512). There are proposed methods of increasing the efficiency of induction motor due to measuring and their verification in the Maxwell software. The l

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Zhao, Jibo. "An Efficient Wide-Speed Direct Torque Control Based on Fuzzy Logic Technique." University of Toledo / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1352922315.

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Boughanmi, Walid. "Eco-conception des motorisations électriques : Application à la machine asynchrone." Thesis, Artois, 2012. http://www.theses.fr/2012ARTO0207/document.

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Environ 300 millions de moteurs électriques, de puissance moyenne comprise entre 0,75 kW et 300 kW, sont utilisés dans l’industrie, l’infrastructure et les grands bâtiments. En plus, 30 millions sont renouvelés chaque année. En France, l’énergie électrique consommée par ces moteurs représente environ deux-tiers l’énergie électrique consommée dans l’industrie. Une amélioration, même faible, des performances environnementales de chaque unité apporte donc des gains environnementaux conséquents. La démarche d’éco-conception d’une machine électrique permet d’introduire, contrairement aux autres dém

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Jardim, Sergio Roberto. "Contribuições para a conservação de energia através da utilização de motores de indução de alto rendimento = Contributions to the energy conservation through the use of high efficiency induction motors." [s.n.], 2012. http://repositorio.unicamp.br/jspui/handle/REPOSIP/259120.

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Orientador: Gilmar Barreto<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Elétrica e de Computação<br>Made available in DSpace on 2018-08-21T13:41:04Z (GMT). No. of bitstreams: 1 Jardim_SergioRoberto_M.pdf: 9870075 bytes, checksum: c5f55e90bf99f7a76b7e8e1a7387db6e (MD5) Previous issue date: 2012<br>Resumo: A gestão e a conservação de energia são temas atuais e de grande importância. Aliar ao ambiente acadêmico o aspecto prático, buscar soluções para a economia de energia através do debate de soluções, proporcionar que os assuntos conservação de energia

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Siyingwa, Bennet. "Reducing Pumping Related Electricity Costs - A Case Study of Three Water Utility Companies in Zambia : Energy Efficiency in Pumping." Thesis, KTH, Energiteknik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-137984.

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Electric pumps are extensively used in many industrial and commercial applications worldwide and account for about twenty percent of the world’s electrical energy demand. The useful energy consumed by the pumps is less than what they demand due to inefficiency caused by a number of reasons including the mismatch between the rated operating conditions and their actual operating conditions. Some studies including those done by the US Department of Energy, show that as much as 30-50% of energy consumed by pumping systems could be saved through equipment and control changes in the pumping systems.

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Šišák, David. "Optimalizace tvaru drážek asynchronního motoru." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2017. http://www.nusl.cz/ntk/nusl-318185.

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This master thesis deals with optimization of the shape of the stator and rotor slots of induction motor with focusing on increasing efficiency. The theoretical part introduces the principles of optimization algorithms. Another part is devoted to design the shape of slots and its influence on the shape of slots on machine. On the models of motor was conducted the optimized shape of slots by using a genetic algorithm. Firstly, it was performed by using the analytical calculation in the RMxprt program, then by using the finite element method on two different models, whose difference simulates th

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Boughanmi, Walid. "Eco-conception des motorisations électriques : Application à la machine asynchrone." Electronic Thesis or Diss., Artois, 2012. http://www.theses.fr/2012ARTO0207.

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Environ 300 millions de moteurs électriques, de puissance moyenne comprise entre 0,75 kW et 300 kW, sont utilisés dans l’industrie, l’infrastructure et les grands bâtiments. En plus, 30 millions sont renouvelés chaque année. En France, l’énergie électrique consommée par ces moteurs représente environ deux-tiers l’énergie électrique consommée dans l’industrie. Une amélioration, même faible, des performances environnementales de chaque unité apporte donc des gains environnementaux conséquents. La démarche d’éco-conception d’une machine électrique permet d’introduire, contrairement aux autres dém

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Chou, Chia-Chun, and 周家駿. "Best of the Induction Motor Efficiency." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/5phnbk.

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碩士<br>國立中正大學<br>機械工程學系暨研究所<br>103<br>This thesis is mainly to use DSP as the implementation platform and build up the vector control algorithm for induction motors. First, we introduce and analyze the induction motor model and vector control methodology, and then derive the best efficiency and the highest acceleration formulation for induction motors. The derived theoretical model has been validated by the Matlab Simulink progrm. In the experiment, we use the TMS320 F28335 digital signal processing by Texas Instruments company to carry out the vector control. Through signal control card measur

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