Results 311 to 320 of about 2,741,614 (378)
Some of the next articles are maybe not open access.
FORCED OSCILLATIONS OF INDUCTION MOTOR
IFAC Proceedings Volumes, 1983Abstract The general mathematical model of asynchronous machines is represented by means of a non linear either 5-th or 6-th order system of differential equations, according to the shaft elasticity is either taken into account or not. These models are sometimes linearized to study particular phaenomena, as for example forced oscillations due to ...
I. Marongiu, ROTONDALE, Nicola
openaire +4 more sources
Direct-drive induction motors: using an induction motor as an alternative to a motor with reducer
IEEE Industry Applications Magazine, 2005This article presents the performance and size comparisons of direct-drive induction motors with gearbox-driven systems. Three different low-speed applications with output speeds to the driven equipment ranging from 300-600 r/min is reviewed. In addition, permanent-magnet (PM) motor advantages and disadvantages are also discussed.
S. Evon, R.F. Schiferl
openaire +2 more sources
Theories of the Linear, Induction Motor and Compensated Linear Induction Motor
IEEE Transactions on Power Apparatus and Systems, 1972The paper explains two new theories of the linear induction motor, and indicates that the end effect exercises very adverse influence on motor performances, and proposes the compensated linear induction motor as a measure to eliminate. the end effect.
S. Yamamura, H. Ito, Y. Ishulawa
openaire +2 more sources
Thermal Modelling of an Induction Motor
IEEE Transactions on Power Apparatus and Systems, 1983The comparison of motor losses is a significant item in the study of inverter control strategies for variable frequency, variable speed ac drives. For our study, since it is necessary to differentiate small changes in loss, we have decided to use steady state temperature rise as a direct indicator of loss rather than measurement as the small difference
T.H. Barton, N.R. Namburi
openaire +3 more sources
Induction motor drive parameters identification
IEEE Transactions on Power Electronics, 1998The paper deals with real-time identification of the rotor parameters of the induction motor drive. The model reference adaptative control technique has been used for synthesising two identifiers. An appropriate choice of the reference model allows a Lyapunov function to be built by means of which the updating law of the rotor time constant can be ...
Attaianese C +4 more
openaire +9 more sources
Journal of the A.I.E.E., 1930
Magnetic noise in induction motors is caused by the vibration of magnetic parts produced by the varying forces associated with the changing flux density in the adjacent air parts of the magnetic circuit. Torsional vibration of the motor is caused by unbalanced windings or applied voltages.
openaire +2 more sources
Magnetic noise in induction motors is caused by the vibration of magnetic parts produced by the varying forces associated with the changing flux density in the adjacent air parts of the magnetic circuit. Torsional vibration of the motor is caused by unbalanced windings or applied voltages.
openaire +2 more sources
, 2017
Voltage unbalance and distortion become one of the most common power quality problems in industrial utilities, which cause significant increase of the electromagnetic losses in induction motors. For energy saving of the induction motor system, there is a
Dongdong Zhang, Ruichi An, Thomas Wu
semanticscholar +1 more source
Voltage unbalance and distortion become one of the most common power quality problems in industrial utilities, which cause significant increase of the electromagnetic losses in induction motors. For energy saving of the induction motor system, there is a
Dongdong Zhang, Ruichi An, Thomas Wu
semanticscholar +1 more source
2005
Publisher Summary With the recent advances in microprocessor technology, it is now possible to develop commercially viable drives that allow alternating-current (a.c.) asynchronous induction motors to be controlled with the accuracy and the response times, which are necessary for servo applications.
openaire +2 more sources
Publisher Summary With the recent advances in microprocessor technology, it is now possible to develop commercially viable drives that allow alternating-current (a.c.) asynchronous induction motors to be controlled with the accuracy and the response times, which are necessary for servo applications.
openaire +2 more sources
The Heating of Induction Motors
Transactions of the American Institute of Electrical Engineers, 1909The object of this paper is to show the limitations imposed on the designer of induction motors by the heating of the machine, and also to show how this heating may be predetermined.
openaire +3 more sources
1975
It was explained in Section 4.8 that a two-axis representation of the induction motor can be made in two different ways. The more direct method, in which the reference frame is attached to the primary element (normally the stator), is useful for many purposes, particularly in making calculations for a machine with a single secondary winding.
Bernard Adkins, Ronald G. Harley
openaire +2 more sources
It was explained in Section 4.8 that a two-axis representation of the induction motor can be made in two different ways. The more direct method, in which the reference frame is attached to the primary element (normally the stator), is useful for many purposes, particularly in making calculations for a machine with a single secondary winding.
Bernard Adkins, Ronald G. Harley
openaire +2 more sources