Results 261 to 270 of about 23,666 (301)

The Asynchronous Motor Start Calculation with the Motor Soft Starter

2018 XIV International Scientific-Technical Conference on Actual Problems of Electronics Instrument Engineering (APEIE), 2018
In the article a modification of the algorithm for calculating currents and torques during a soft start and automating the processing of a calculation data array is considered for a concrete example of an asynchronous motor.
Andrei A. Shevchenko, Zoya S. Temlyakova, Vladimir V. Grechkin, Anton A. Temlyakov   +3 more
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Design of an asynchronous electrostatic motor

Review of Scientific Instruments, 1990
An asynchronous electrostatic motor that works under a high-voltage pulse controller using LED-phototransistor photosensors is described. The motor produced the torque 1030-dyn-cm at 1500 V and attained the power 0.8 mW at 80 rpm in n-hexane.
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Asynchronous measurement and control: motor synchronization for mailing systems

Proceedings of the 2001 American Control Conference. (Cat. No.01CH37148), 2001
Concerns mailing systems that automatically assemble mailings consisting of several brochures. The main component of the mailing (e.g. a book or a magazine) enters the conveyor belt (lug chain) at the loader module. Several supplements are added to the main product by a feeder module consisting of sheet-feeders.
W. P. M. H. Heemels, R. J. A. Gorter, P. P. J. van den Bosch, Siep Weiland, Will H. A. Hendrix   +4 more
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Instability Regions of Variable Frequency Supplied Asynchronous Motors

IFAC Proceedings Volumes, 1983
Abstract The paper tries to answer the question if and when unstable operations occur in practice in asynchronous motors supplied by variable frequency voltages. It is found and shown that unstable operating ranges are in practice greatly reduced in comparison with theoretical evaluations, obtained by simply considering the independent variation of ...
DEL PIZZO, ANDREA, GUIDOBALDI R., PAGANO E., PERFETTO, ALDO   +3 more
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A COMPARISON BETWEEN OPERATING CONDITIONS OF INVERTERFED ASYNCHRONOUS MOTORS

IFAC Proceedings Volumes, 1977
Publisher Summary The performances of the inverter-fed asynchronous motors have been widely investigated in the past few years. The machines can be obviously operated according to different control techniques and obtain operating conditions quite different as compared with the same machines supplied with constant frequency and voltage.
Pagano, E., PERFETTO, ALDO
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Computer Model of a Synchronized Asynchronous Motor

Procedia Engineering, 2015
A computer model of a synchronized asynchronous motor has been designed and divided into blocks. The computer model consists of units calculating magnetizing currents, stator and rotor current, the main electromagnetic flux and EMF of windings ...
Enin, S.S., Omelchenko, E.Y., Tanich, V.O., Telezhkin, O.A.   +3 more
exaly   +2 more sources

Asynchronous motor drive loss optimization

Journal of Materials Processing Technology, 2007
Abstract This paper presents a methodology for determination of harmonic iron losses in laminated iron cores under non sinusoidal excitation. The methodology adopted is based on a particular 3D finite element model by using a reduced scalar potential formulation.
Nikolaos Tsouvalas, Ioannis Xydis, Ioannis Tsakirakis, Z. Papazacharopoulos   +3 more
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Regelung eines Asynchron-Motors

1974
Aus der Darstellung der Betriebseigenschaften des Asynchronmotors geht hervor, das eine Anwendung als Regelantrieb mit weitem Drehzahlbereich die Verfugbarkeit eines ruhenden Drehstromerzeugers veranderlicher Frequenz mit einer genugenden Leistungsfahigkeit und hohem Wirkungsgrad voraussetzt.
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Parasitic Torques of Saturised Asynchronous Motors

IEEE Transactions on Power Apparatus and Systems, 1972
The paper deals with the analysis of field harmonics in an asynchronous machine. It is proved that with increasing saturation of the magnetic circuit, the influence of the higher space harmonics on the field form is reduced. This causes reduction of the parasitic torques.
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Vector control of asynchronous motors

1999
oz ASENKRON MOTORLARIN VEKTÖR KONTROLÜ MUTLUER, H. Bilge Y.Lisans, Elektrik Elektronik Mühendisliği Bölümü Danışman: Prof. Dr. Aydın Ersak Aralık 1999, 107 sayfa Asenkron motorlar, güç yarıiletkenleri ve VLSI teknolojilerindeki gelişmelerle birlikte popülerlik kazanmışlardır.
openaire   +2 more sources