Modelling and Analytical Study of Linear Induction Motor and Its Air Gap Flux Measurement at Different Slip

2017 ◽  
pp. 585-595
Author(s):  
Prasenjit D. Wakode ◽  
Mohd Tariq ◽  
T. K. Bhattacharya ◽  
C. Bharatiraja
Keyword(s):  
Induction Motor ◽  
Analytical Study ◽  
Flux Measurement ◽  
Air Gap ◽  
Linear Induction ◽  
Linear Induction Motor

High Air Gap Linear Induction Motor Fast Simulation

2021 ◽  
Author(s):  
Claudio Bianchini ◽  
Ambra Torreggiani ◽  
Matteo Davoli ◽  
Danilo David ◽  
Andrea Sala ◽  
...  
Keyword(s):  
Induction Motor ◽  
Air Gap ◽  
Fast Simulation ◽  
Linear Induction ◽  
Linear Induction Motor

Influence of the Air-Gap Changes on the Performance of Linear Induction Motor

2008 ◽  
Vol 392-394 ◽  
pp. 551-554 ◽  
Author(s):  
Xi Lin Zhu ◽  
Shi Ju E ◽  
Chun Fu Gao
Keyword(s):  
Magnetic Field ◽  
Induction Motor ◽  
Air Gap ◽  
Optimized Design ◽  
End Effects ◽  
Element Analysis ◽  
Linear Induction ◽  
Linear Induction Motor ◽  
Air Gap Magnetic Field ◽  
Primary Current

The transient characteristic of single-sided linear induction motor (LIM) was simulated and computed using the electromagnetic field finite element analysis software Ansoft. The change of the thrust, the primary current and the air-gap’s magnetic field of linear induction motor was analyzed under the different air-gap’s size condition. The analysis result shows that, with the growth of air gap, the motor thrust reduces but the primary current increases, and the distribution of motor air-gap magnetic field is uneven due to the existence of end effects. Finally a comparison is made between the simulation result and the experiment result, which indicates the correctness of simulated model, thus it can provide important basis for the manufacture, optimized design and control of LIM which is used in subways.

scholarly journals Combination Traction and Lateral Stabilisation System for Magnetic Levitation Transport

2017 ◽  
Vol 3 (4) ◽  
pp. 107-126
Author(s):  
Andrey V Solomin
Keyword(s):  
Mathematical Model ◽  
Magnetic Flux ◽  
Induction Motor ◽  
Transverse Magnetic ◽  
Air Gap ◽  
Human Society ◽  
Magnetomotive Force ◽  
Linear Induction ◽  
Linear Induction Motor ◽  
Secondary Element

The problems of improvement of modern types of transport and creation of new ones are important and topical for the human society development. One of the most promising and environmentally-friendly modes of transport is the high-speed maglev transport, moving at speeds of approximately 500 km/h. Objective. Justification of linear induction motor, development and research of various constructions of this type of motors. Methods. Description of linear induction motor with longitudinal and transverse magnetic flux for combined traction and lateral stabilisation system of maglev transport, having increased lateral stabilisation forces. The mathematical modelling of magnetomotive force (MF) in the air gap of traction linear motor of this type has been conducted. To analyse the MF the assumption has been made about even distribution of magnetic induction in the air gap in transverse direction and its sinusoidal longitudinal direction, making it possible to develop new mathematical model of MF distribution in the air gap of linear induction motor with longitudinal and transverse magnetic flux Results. The developed mathematical model for calculation of MF on traction linear machine will enable increasing accuracy of traction and lateral stabilisation combined system forces for maglev transport. The same relates to mutual location of inductor to the secondary element. All this proves the successful ten-year commercial operation experience of magnetically suspended train carrying passengers from an airport to Shanghai, P.R. China. The values of traction and lateral stabilisation forces of linear induction motor with longitudinal and transverse magnetic flux is greatly influenced by the character of current distribution in the secondary element. The character itself is influenced by MF distribution in the air gap.

Research of Air-Gap Magnetic Field Distribution of Segment-Powered Linear Induction Motor

2013 ◽  
Vol 416-417 ◽  
pp. 408-417
Author(s):  
Jin Rao ◽  
Jin Xu ◽  
De Zhi Liu ◽  
Xi Dang Yang ◽  
Wei Ming Ma
Keyword(s):  
Induction Motor ◽  
Field Distribution ◽  
Single Phase ◽  
Air Gap ◽  
Motive Force ◽  
Force Distribution ◽  
Linear Induction ◽  
Linear Induction Motor ◽  
Analytic Expressions ◽  
Air Gap Magnetic Field

For segment-powered linear induction motor (LIM), there is major asymmetry among the mutual inductance of stator windings. Based on magnetic motive force theory, this paper derived the magnetic motive force distribution of single-phase winding of the segment-powered linear induction motor, and confirmed the characteristics of magnetic motive force distribution of the segment-powered linear induction motor. Based on the magnetic motive force distribution of single-phase winding, the analytic expressions of air-gap field distribution of the segment-powered linear motor were derived, and the finite element simulation results verified the analytic results.

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