Relevant bibliographies by topics / Three phase machine

Contents

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

Academic literature on the topic 'Three phase machine'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Three phase machine"

1

Wang, C., S. A. Nasar, and I. Boldea. "Three-phase flux reversal machine (FRM)." IEE Proceedings - Electric Power Applications 146, no. 2 (1999): 139. http://dx.doi.org/10.1049/ip-epa:19990114.

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Prakht, Vladimir, Vladimir Dmitrievskii, Vadim Kazakbaev, Safarbek Oshurbekov, and Mohamed N. Ibrahim. "Optimal Design of a Novel Three-Phase High-Speed Flux Reversal Machine." Applied Sciences 9, no. 18 (September 12, 2019): 3822. http://dx.doi.org/10.3390/app9183822.

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A single-phase flux reversal machine (FRM) has many advantages in high-speed applications because of its simple and reliable rotor structure without magnets or winding, simple and cheap concentrated stator windings, high efficiency, and power density. However, the major problem of single-phase motors is the high torque ripple, which shortens their lifetime and causes noise and vibrations, not only in the machine, but also in the mechanisms coupled therewith. This paper presents a novel three-phase machine consisting of three single-phase machines, having a common shaft aiming to reduce the torque ripple and to improve motor behavior. In this paper, the mathematical model of the single-phase flux reversal motor, as well as the conversion procedure of the single-phase motor parameters to the three-phase ones, is considered. Furthermore, an optimization procedure of the motor and choosing the optimization objectives are done. The finite element two-dimensional (2D) method is used to simulate the machine and to show the results.
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DEKHANDJI, Fatma Zohra, Salah Eddine HALLEDJ, and Oussama ZABOUB. "Predictive Maintenance Applied to Three phase Induction Motors." Algerian Journal of Signals and Systems 4, no. 2 (December 15, 2019): 71–88. http://dx.doi.org/10.51485/ajss.v4i2.84.

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Induction machines are widely used in industry. The operating conditions may sometimes lead the machine into different fault situations. The machine should be shut down when a fault is experienced to avoid complete process failure and for the safety of the workers. The predictive maintenance consists of scheduling maintenance activities only when a functional failure is detected. The advantages of predictive maintenance are accepted in many industries because of its efficiency in fault detection during early stages and thus reducing unscheduled down time. It increases productivity, improves quality and provides the feeling of safety and reliability to staff. The main types of external faults experienced by these motors are over loading; single phasing, unbalanced supply voltage, phase reversal, ground fault, under voltage and over voltage. MATLAB/SIMULINK simulation is used in this work for the detection and analysis of the faults on induction motor.
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Vuddanti, Sandeep, Vinod Karknalli, and Surender Reddy Salkuti. "Design and comparative analysis of three phase, four phase and six phase switched reluctance motor topologies for electrical vehicle propulsion." Bulletin of Electrical Engineering and Informatics 10, no. 3 (June 1, 2021): 1495–504. http://dx.doi.org/10.11591/eei.v10i3.3054.

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Switched reluctance motor (SRM) is attracting the scientific community in recent days because of its special structural benefits. Good research work has been conducted on this machine since the ages. It has evolved as an alternative to the conventional electrical machines in variable speed drives due to rugged architecture, high-speed operation, four quadrants, lack of magnet, and adaptability to harsh surroundings. This paper reviews different topologies of SRM for electric vehicle (EV) application and a comparative study of suitable machines for electric vehicle propulsion. This paper elaborates on the design methodology and the analysis of various phases of operation of SRMs. During the design procedure, the finite element method (FEM) of optimization is used to enhance motor performance. In this study, the three different phase (3, 4 6) motors are analyzed in machine design software and finite element analysis outcomes and SRM simulation approach are discussed.
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Abdel-Khalik, A. S. "Five-Phase Modular External Rotor PM Machines with Different Rotor Poles: A Comparative Simulation Study." Modelling and Simulation in Engineering 2012 (2012): 1–14. http://dx.doi.org/10.1155/2012/487203.

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The performance of fault-tolerant modular permanent magnet machines depends on the proper selection of the pole and slot numbers which result in negligible coupling between phases. The preferred slot and pole number combinations eliminate the effect of low-order harmonics in the stator magnetomotive force and thereby the vibration and stray loss are reduced. In this paper, three external rotor machines with identical machine dimensions are designed with different slots per phase per pole ratios. A simulation study is carried out using finite element analysis to compare the performance of the three machines in terms of machine torque density, ripple torque, core loss, and machine efficiency. A mathematical model based on the conventional-phase-model approach is also used for the comparative study. The simulation study is extended to depict machine performance under fault conditions.
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Markovic, Nenad, Jeroslav Zivanic, Zoran Lazarevic, and Bratislav Iricanin. "The mathematical model for analysis and evaluation of the transient process of the three-phase asynchronous machine performance." Serbian Journal of Electrical Engineering 15, no. 3 (2018): 319–37. http://dx.doi.org/10.2298/sjee1803319m.

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This paper describes an adopted method which could be used in transient process modelling of three-phase asynchronous machines on the computer. Converter asynchronous electric machine feeding requires a detailed research of the transient process influence and the dynamic states of energy exchange between the electrical circuit feeding and the machine itself. A mathematical model has been formulated in order to solve the transient process of the three-phase asynchronous electric machine referring to the two asynchronous machines and containing two matrix models defined by Park?s d - q components. In the system of symmetrical components the state and the operation of the first machine was defined based on relations and operation conditions of a direct sequence system and of other machines based on relations and operation conditions of an inverse sequence system. The new method has been derived from the existing psbpwm MATLAB package. The new model simulates the state and operation of a single machine with identical parameters through the state and operation of the two machines with identical parameters: the first in a direct sequence system and the others in an inverse sequence system. Operation analysis of the three-phase induction machine is limited to a transient process occurring in the right angled shape of voltage feeding. The new presented model can, with certain limitations, be applied not only to a three-phase asynchronous machine model but to other alternating current machines which have a stator and a rotor. The experiment has been performed following an example of asymmetrical feeding followed by inverse component phenomena of electrical and mechanical values in the machine.
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M. S. Ferreira, Jossana, and Andrés Ortiz Salazar. "Bearingless Three Phase Induction Machine: Modelling And Driving." Eletrônica de Potência 12, no. 3 (November 1, 2007): 217–22. http://dx.doi.org/10.18618/rep.2007.3.217222.

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AL-Rawi, Muhanned, and Muaayed AL-Rawi. "On the Simulation of Three Phase Induction Machine." Technological Engineering 16, no. 1 (October 1, 2019): 63–65. http://dx.doi.org/10.1515/teen-2019-0009.

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Abstract Three phase induction motor is the most popular type AC motor. it is very commonly used for industrial drives. It is cheap, robust, efficient and reliable. It has good speed regulation and high starting torque. It requires little maintenance. It has a reasonable over load capacity. This paper deals with the simulation of three phase induction machine using MATLAB Simulink. The results are obtained for generating mode and motoring mode.
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Wang, Syed A. Nasar, Ion Boldea, Congxiao. "Vector Control of Three-Phase Flux Reversal Machine." Electric Machines & Power Systems 28, no. 2 (February 2000): 153–66. http://dx.doi.org/10.1080/073135600268432.

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Boldea, Congxiao Wang, Syed A. Nasa, Ion. "Design of a Three-Phase Flux Reversal Machine." Electric Machines & Power Systems 27, no. 8 (July 1999): 849–63. http://dx.doi.org/10.1080/073135699268885.

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Dissertations / Theses on the topic "Three phase machine"

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Gao, Liliang. "Control of three-level 5-phase induction machine drive system." Thesis, University of Strathclyde, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.510860.

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Chambega, D. J. "Analysis and control of a three phase power permanent magnet machine." Thesis, University of Strathclyde, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.382343.

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Almarhoon, Ali. "Sensorless control of dual three-phase permanent magnet synchronous machine drives." Thesis, University of Sheffield, 2016. http://etheses.whiterose.ac.uk/15888/.

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Ren, Yuan. "Direct torque control of dual three-phase permanent magnet synchronous machine drives." Thesis, University of Sheffield, 2016. http://etheses.whiterose.ac.uk/12190/.

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Andrews, Darin M. "Direct torque control of a three-phase voltage source inverter-fed induction machine." Thesis, Monterey, California: Naval Postgraduate School, 2013. http://hdl.handle.net/10945/38872.

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Approved for public release; distribution is unlimited.
The scope of this thesis involves various techniques to control the torque of a voltage source inverter-fed induction motor. The three methods investigated here are voltage by frequency, known as scalar control, field-oriented control with and without space vector modulation, and direct torque control. Although all three techniques have been proven effective, each technique possesses its own advantages and disadvantages. In todays engineering world, time and money are saved by utilizing software developed to accurately model a physical system and to compare with hardware previously implemented in a lab. Comparisons can be made to determine how each of these torque control methods perform under static and dynamic modes of operation. The United States military can benefit from this study by modifying or adding onto the software models developed here with little cost and use these models to do trade studies without the cost of lab demonstrations.
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Vichis-Rodriguez, Damian Sergio. "Modelling of three phase AC machines suitable for internal fault simulation, detection and analysis in multi-machine power systems." Thesis, University of Glasgow, 2010. http://theses.gla.ac.uk/1782/.

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The ever increasing demand for electrical energy has meant that electrical power systems have evolved to be the highly complex networks that are in existence today, where the transient interactions that take place between large synchronous generators have been the focus of advanced research for many decades. More recently, the proliferation of synchronous and asynchronous generators of comparatively small rating, which are not centrally planned, has added new impetus to this area of research. At a time when not only technical but also economic and environmental concerns must be carefully assessed, more realistic models of the individual power plant transient response and its interaction with the rest of the network become mandatory to achieve more accurate analysis of the network operation and prevent wastage of technical and economical resources. The main thrust of this research project is to develop comprehensive models of rotating machinery with which to assess the transient response of electrical power networks that undergo severe unbalanced operation due to faulty conditions developing anywhere in the power network, including the rotating machinery’s windings. To achieve an unrivalled speed of response, a nodal-based model of the electrical power network has been developed, enabling the study of power networks of any size and topological formation with the utmost flexibility and efficiency. The rotating machinery addressed in this research work is the three-phase synchronous generator and the three-phase asynchronous (induction) machine. In multi-machine power systems transient studies, it is common to look at all the rotating machinery in the network as being healthy units having an idealized sinusoidally distributed stator winding – the possibility of a severe unbalanced condition internal to the machine due to internal fault or the effect of space harmonics, has, so far, not been addressed in a multi-machine environment. In this research work, new EMTP type models, with enhanced numerical properties, are constructed for the simulation of internal and external machine fault phenomena with different levels of details including the effects of saturation and space harmonics. Advanced numerical methods are employed to improve on the numerical stability of the network model allowing the use of larger time steps than what otherwise is possible with traditional numerical methods, enabling the new model to execute faster than existing models and yet to exhibit the same degree of numerical accuracy with an unrivalled degree of modelling flexibility. A case in point is an application made to model the transient response of a Variable Frequency Transformer (VFT) undergoing internal faults on its stator side. The rotating machinery models with internal fault representation developed in this research lend themselves to an application in the area of condition monitoring, where a new method is developed to detect internal faults in the stator side of three phase rotating machinery. The method is shown to be highly effective when applied to machines operating in an isolated environment as well as in a multi-machine power system, performing very well when applied to different types of equipment and various kinds of internal faults.
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Nguyen, Ngoc Linh. "Predictive control of two synchronous machines in parallel supplied by a standard three phase static converter." Phd thesis, Toulouse, INPT, 2013. http://oatao.univ-toulouse.fr/9906/1/nguyen.pdf.

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Nowadays, embedded systems are more and more numerous that impacted strongly energy conversion systems. Associated constraints translates into a reduction of the masses and the losses to improve energy efficiency in the conversion chain. This is the case in the field of aeronautics or the concept of ″More Electric Aircraft″ now becomes a reality. Therefore, the permanent magnet synchronous machine becomes an actuator of excellence because of its important mass power, its low maintenance cost and its dynamic qualities. When these machines are associated to carry out cooperative functions (for example flight surfaces) can still reduce the mass embedded in pooling power electronics. It is precisely in this context that localizes our work by offering structures power electronics-based, reduced to power for two or more electric machines in parallel and providing control laws aimed at improving energy efficiency. We we are interested specifically in the Predictive Control of two Synchronous Machines connected in parallel with a 3-Phase Converter. These machines have identical characteristics and must follow a same velocity profile with a torque of different load and in any case independent. The predictive control approach leads us to consider the voltage inverter as a device having a finite number of input states and we need to select every moment the best control solution to minimize a cost function. This cost function on one or two machines, is composed of a portion which represents the quality of the produced torque (Iq current) and another party representative quality of the conversion via produced losses (Id current). This approach works naturally for variable switching frequency. Thus the document state of different solutions studied showing the limits of such an approach both dynamic in terms of losses. To improve this basic solution we develop an approach based on the use of virtual vector which increase the possibilities of control and led to operation at constant frequency through a SVM solution. The search for an optimum virtual vector is proposed and applied to a device consisting of two low-power machines. The various proposals are validated through numerical simulation and consolidated by experimental results.
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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, iron loss and friction and windage loss. The excitation voltages are supplied from a PWM inverter with a large capacity DC bus capable of supplying rated rms voltage. The synthetic loading methods of efficiency evaluation are verified in terms of the individual losses in the machine by using a new dynamic model that accounts for iron loss and all parameter variations. The losses are compared with the steady-state loss distribution determined using very accurate induction machine parameters. The parameters were identified using a run-up-to-speed test at rated voltage and the locked rotor and synchronous speed tests conducted with a variable voltage supply. The latter tests were used to synthesise the variations in stator leakage reactance, magnetising reactance and the equivalent iron loss resistance over the induction machine's speed range. The run-up-to-speed test was used to determine the rotor resistance and leakage reactance variations over the same speed range. The test method results showed for the first time that the rotor leakage reactance varied in the same manner as the stator leakage and magnetising reactances with respect to current. When all parameter variations are taken into account there is good agreement between theoretical and measured results for the synthetic loading methods. The synthetic loading methods are applied to three-phase induction machines with both single- and double-cage rotors to assess the effect of rotor parameter variations in the method. Various excitation waveforms for each method were used and the measured and modelled efficiencies compared to conventional efficiency test results. The results verify that it is possible to accurately evaluate the efficiency of three-phase induction machines using synthetic loading.
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Elwakil, Ehab. "A new converter topology for high-speed high-starting-torque three-phase switched reluctance motor drive system." Thesis, Brunel University, 2009. http://bura.brunel.ac.uk/handle/2438/3009.

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Switched reluctance motor (SRM) has become a competitive selection for many applications of electric machine drive systems recently due to its relative simple construction and its robustness. The advantages of those motors are high reliability, easy maintenance and good performance. The absence of permanent magnets and windings in rotor gives possibility to achieve very high speeds (over 10000 rpm) and turned SRM into perfect solution for operation in hard conditions like presence of vibrations or impacts. Such simple mechanical structure greatly reduces its price. Due to these features, SRM drives are used more and more into aerospace, automotive and home applications. The major drawbacks of the SRM are the complicated algorithm to control it due to the high degree of nonlinearity, also the SRM has always to be electronically commutated and the need of a shaft position sensor to detect the shaft position, the other limitations are strong torque ripple and acoustic noise effects.
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Hord, Kyle A. "MODELING AND VALIDATION OF A SYNCHRONOUS-MACHINE/CONTROLLED-RECTIFIER SYSTEM." UKnowledge, 2014. http://uknowledge.uky.edu/ece_etds/42.

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The hardware validation of a novel average-value model (AVM) for the simulation of a synchronous-generator/controlled rectifier system is presented herein. The generator is characterized using genetic algorithm techniques to fit standstill frequency response (SSFR) measurements to q and d-axis equivalent circuits representing the generator in the rotor reference frame. The generator parameters form the basis of a detailed model of the system, from which algebraic functions defining the parametric AVM are derived. The average-value model is compared to the physical system for a variety of loading and operating conditions including step load change, change in delay angle, and external closed-loop control, validating the model accuracy for steady-state and transient operation.
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Books on the topic "Three phase machine"

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1963-, Chen Meng-Jen, ed. Three-phase electrical machine systems: Computer simulation. Taunton, Somerset, England: Research Studies Press, 1993.

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Ambrose, Dean H. Three-dimensional graphics simulator for testing mine machine computer-controlled algorithms: Phase 1, development. Washington, D.C: U.S. Dept. of the Interior, Bureau of Mines, 1992.

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Ambrose, Dean H. Three-dimensional graphics simulator for testing mine machine computer-controlled algorithms: Phase 1, development. Washington, D.C: U.S. Dept. of the Interior, Bureau of Mines, 1992.

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Ambrose, Dean H. Three-dimensional graphics simulator for testing mine machine computer-controlled algorithms: Phase 1, development. Washington, D.C: U.S. Dept. of the Interior, Bureau of Mines, 1992.

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Ambrose, Dean H. Three-dimensional graphics simulator for testing mine machine computer-controlled algorithms: Phase 1, development. Washington, D.C: U.S. Dept. of the Interior, Bureau of Mines, 1992.

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Buksnaitis, Jonas Juozas. Sinusoidal Three-Phase Windings of Electric Machines. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-42931-1.

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Quang, Nguyen Phung, and Jörg-Andreas Dittrich. Vector Control of Three-Phase AC Machines. Berlin, Heidelberg: Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-662-46915-6.

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McCormick, John A. Three-phase inverter for small high speed motors. Hanover, NH: Creare Inc., 1991.

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Quang, Nguyen Phung. Vector control of three-phase AC machines: System development in the practice. [Berlin]: Springer, 2008.

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Quang, Nguyen Phung. Vector control of three-phase AC machines: System development in the practice. [Berlin]: Springer, 2008.

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Book chapters on the topic "Three phase machine"

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Franchi, Claiton Moro. "Three-Phase Motors." In Electrical Machine Drives, 39–97. 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/b22314-2.

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Smith, Nigel. "Single-phase output from a three-phase machine." In Motors as Generators for Micro Hydro Power, 41–44. Rugby, Warwickshire, United Kingdom: Practical Action Publishing, 1994. http://dx.doi.org/10.3362/9781780445533.007.

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Leonhard, Werner. "Symmetrical Three-phase AC Induction Machine." In Control of Electrical Drives, 142–86. Berlin, Heidelberg: Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/978-3-662-11371-4_11.

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Chapallaz, Jean-Marc, Jacques Dos Ghali, Peter Eichenberger, and Gerhard Fischer. "Theory of the Three-Phase Induction Machine." In Manual on Induction Motors Used as Generators, 15–38. Wiesbaden: Vieweg+Teubner Verlag, 1992. http://dx.doi.org/10.1007/978-3-663-14044-3_3.

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Quang, Nguyen Phung, and Jörg-Andreas Dittrich. "Machine Models as Prerequisite to Design the Controllers and Observers." In Vector Control of Three-Phase AC Machines, 61–112. Berlin, Heidelberg: Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-662-46915-6_3.

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Simón, L., and J. M. Monzón. "Parametric Identification of a Three-Phase Machine with Genetic Algorithms." In Computational Methods for the Innovative Design of Electrical Devices, 167–84. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-16225-1_9.

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Boldea, Ion, and Lucian Tutelea. "Control of Three-Phase Reluctance Synchronous Machine and Permanent Magnet–Reluctance Synchronous Machine Drives." In Reluctance Electric Machines, 143–77. 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/10.1201/9780429458316-5.

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Narasimhulu, V., and K. Jithendra Gowd. "Performance Analysis of Single-Stage PV Connected Three-Phase Grid System Under Steady State and Dynamic Conditions." In Cybernetics, Cognition and Machine Learning Applications, 39–46. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-6691-6_5.

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Gaiceanu, Marian, and Cristian Nichita. "Regenerative AC Drive System Based on the Three Phase Permanent Magnet Synchronous Machine." In 2nd International Congress on Energy Efficiency and Energy Related Materials (ENEFM2014), 163–70. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-16901-9_20.

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Wang, Kai, and Zi-Qiang Zhu. "Torque Enhancement of Three Phase Surface-Mounted Permanent Magnet Machine Using 3rd Order Harmonic." In Third Harmonic Utilization in Permanent Magnet Machines, 13–38. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-0629-7_2.

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Conference papers on the topic "Three phase machine"

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Lam, Van K., Thanh Nguyen, Thuc Phan, Byung-Min Chung, George Nehmetallah, and Christopher B. Raub. "Machine learning and phase signatures in cell line classification." In Digital Holography and Three-Dimensional Imaging. Washington, D.C.: OSA, 2019. http://dx.doi.org/10.1364/dh.2019.th4a.2.

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Khelafi, A., A. Djebli, M. Ouadah, O. Touhami, and R. Ibtiouen. "Control of Five-Phase Induction Machine with Three-Phase Inverter via Three-to-Five Phase Transformer." In 2020 International Conference on Electrical Machines (ICEM). IEEE, 2020. http://dx.doi.org/10.1109/icem49940.2020.9270971.

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Butola, Ankit, Daria Popova, Azeem Ahmad, Vishesh Dubey, Ganesh Acharya, Purusotam Banet, P. Senthilkumaran, Balpreet Singh Ahluwalia, and Dalip Singh Mehta. "Classification of human spermatozoa using quantitative phase imaging and machine learning." In Digital Holography and Three-Dimensional Imaging. Washington, D.C.: OSA, 2019. http://dx.doi.org/10.1364/dh.2019.th4a.3.

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Steckel, Richard, Sebastian Daum, Andreas Kremser, and Hans-Georg Herzog. "Efficiency Analysis of Three-Phase and Dual Three-Phase Induction Machine with Sinusoidal Supply." In 2019 IEEE International Electric Machines & Drives Conference (IEMDC). IEEE, 2019. http://dx.doi.org/10.1109/iemdc.2019.8785154.

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Strbkova, L., P. Vesely, and R. Chmelik. "Classification of Cells in Time-Lapse Quantitative Phase Image by Supervised Machine Learning." In Digital Holography and Three-Dimensional Imaging. Washington, D.C.: OSA, 2019. http://dx.doi.org/10.1364/dh.2019.th3a.39.

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Maia, A. C. N., and C. B. Jacobina. "Six-phase machine drive system based on three three-leg converters." In 2013 Brazilian Power Electronics Conference (COBEP 2013). IEEE, 2013. http://dx.doi.org/10.1109/cobep.2013.6785224.

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Noei, Abolfazl Ranjbar, and Hedyeh Agheh Kholerdi. "Practical intelligent modeling of three-phase induction machine." In 2015 7th Conference on Information and Knowledge Technology (IKT). IEEE, 2015. http://dx.doi.org/10.1109/ikt.2015.7288670.

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Ai, Yongle, Yumei Wang, and Maarten J. Kamper. "Torque performance comparison from three-phase with six-phase induction machine." In 2009 International Conference on Mechatronics and Automation (ICMA). IEEE, 2009. http://dx.doi.org/10.1109/icma.2009.5246663.

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Jacobina, Cursino B., Victor F. M. B. Melo, Nady Rocha, and Edison R. C. da Silva. "Six-phase machine conversion system with three-phase and single-phase series converters." In 2013 IEEE Energy Conversion Congress and Exposition (ECCE). IEEE, 2013. http://dx.doi.org/10.1109/ecce.2013.6647217.

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Maia, A. C. N., C. B. Jacobina, and N. B. Freitas. "Open-end multi-level six-phase machine drive system with three three-phase DC-link converters." In IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society. IEEE, 2014. http://dx.doi.org/10.1109/iecon.2014.7048589.

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Reports on the topic "Three phase machine"

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Smith, Jijo K., Howell Li, and Darcy M. Bullock. Populating SAE J2735 Message Confidence Values for Traffic Signal Transitions Along a Signalized Corridor. Purdue University, 2019. http://dx.doi.org/10.5703/1288284317322.

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Abstract:
The communication between connected vehicles and traffic signal controllers is defined in SAE Surface Vehicle Standard J2735. SAE J2735 defines traffic signal status messages and a series of 16 confidence levels for traffic signal transitions. This paper discusses a statistical method for tabulating traffic signal data by phase and time of day and populating the SAE J2735 messages. Graphical representation of the red-green and green-yellow transitions are presented from six intersections along a 4-mile corridor for five different time of day timing plans. The case study provided illustrates the importance of characterizing the stochastic variation of traffic signals to understand locations, phases, and time of day when traffic indications operate with high predictability, and periods when there are large variations in traffic signal change times. Specific cases, such as low vehicle demand and occasional actuation of pedestrian phases are highlighted as situations that may reduce the predictability of traffic signal change intervals. The results from this study also opens up discussion among transportation professionals on the importance of consistent tabulation of confidence values for both beginning and end of green signal states. We believe this paper will initiate dialog on how to consistently tabulate important data elements transmitted in SAE J2735 and perhaps refine those definitions. The paper concludes by highlighting the importance of traffic engineers and connected vehicle developers to work together to develop shared visions on traffic signal change characteristics so that the in-vehicle use cases and human-machine interface (HMI) meet user expectations.
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Cordeiro de Amorim, Renato. A survey on feature weighting based K-Means algorithms. Web of Open Science, December 2020. http://dx.doi.org/10.37686/ser.v1i2.79.

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In a real-world data set there is always the possibility, rather high in our opinion, that different features may have different degrees of relevance. Most machine learning algorithms deal with this fact by either selecting or deselecting features in the data preprocessing phase. However, we maintain that even among relevant features there may be different degrees of relevance, and this should be taken into account during the clustering process. With over 50 years of history, K-Means is arguably the most popular partitional clustering algorithm there is. The first K-Means based clustering algorithm to compute feature weights was designed just over 30 years ago. Various such algorithms have been designed since but there has not been, to our knowledge, a survey integrating empirical evidence of cluster recovery ability, common flaws, and possible directions for future research. This paper elaborates on the concept of feature weighting and addresses these issues by critically analysing some of the most popular, or innovative, feature weighting mechanisms based in K-Means
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