DocumentCode :
1665316
Title :
The analytical calculation of the thrust and normal force and force analyses for linear induction motor
Author :
Lv Gang ; Li Qiang ; Liu Zhiming ; Fan Yu ; Li Guo-guo
Author_Institution :
Sch. of Mech. & Electr. Control Eng., Beijing Jiaotong Univ., Beijing
fYear :
2008
Firstpage :
2795
Lastpage :
2799
Abstract :
Linear induction motor has been applied to magnetic suspension maglev and metro vehicle. Its thrust and normal force analyses are important basis of motor design and control. The longitudinal end effects have strong influence to performance of linear induction motor, we consider this influence through equivalent EMF. Aiming to the conductivity of secondary and ferromagnetic secondary, transverse edge effects are considered by different modified coefficients. After got modified coefficients, we can compute thrust and consider end effects. Normal force is computed by one-dimensional analysis and two-dimensional LIM model with multi-layer secondary. Finally, we got the thrust and normal force by a model of a single-sided linear induction motor under different air gap and current frequency. The results are then applied to the single-sided LIMpsilas, and its performances are predicted. Results from analyses are compared with those obtained from tests.
Keywords :
air gaps; induction motors; linear motors; magnetic levitation; air gap; analytical calculation; current frequency; force analyses; linear induction motor; longitudinal end effects; magnetic suspension maglev; metro vehicle; normal force; one-dimensional analysis; thrust force; transverse edge effects; two-dimensional LIM model; Conductivity; Control engineering; Finite element methods; Induction motors; Magnetic analysis; Magnetic circuits; Magnetic flux; Magnetic flux density; Magnetic levitation; Rails; LIM model with multi-layer secondary; end effects; linear induction motor; normal force; thrust;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Signal Processing, 2008. ICSP 2008. 9th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-2178-7
Electronic_ISBN :
978-1-4244-2179-4
Type :
conf
DOI :
10.1109/ICOSP.2008.4697728
Filename :
4697728
Link To Document :
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