Paper Info
Title
Investigation of Forces and Secondary Losses in Linear Induction Motor with the Solid and Laminated Back Iron Secondary for Metro
Abstract
In this paper, two main kinds of the secondary, i.e. the solid and laminated back iron secondary, are applied in linear metro, as well as electromagnetic forces and secondary losses of the single-sided linear induction motor (SLIM) with different secondary are calculated by the finite-element method (FEM). Firstly, in solving region, the fundamental equations of the magnetic field with eddy currents in the secondary are deduced, and specific boundary conditions for each parts of SLIMs are given. Equations of the secondary loss and efficiency are presented. Secondly, 120-kW SLIMs with two types of the secondary for metro are calculated by 3-D FEM respectively. The efficiency and secondary loss are analyzed for different numbers of the lamination in the secondary back iron. The optimal number of the back iron lamination is then obtained. Thirdly, considering the influence of the end and edge effect, the air-gap flux density with different secondaries is calculated. Then, the thrust and vertical force are analyzed for SLIMs with two kinds of the secondary. Finally, numerical results of the efficiency, thrust and vertical force, which are obtained from different secondaries, are experimentally validated by measurement on the test rig of the SLIM.
Year
DOI
Venue
2017
10.1109/TIE.2016.2565442
IEEE Trans. Industrial Electronics
Keywords
Field
DocType
Iron,Solids,Finite element analysis,Eddy currents,Force,Aluminum,Solid modeling
Linear induction motor,Lamination,Boundary value problem,Magnetic field,Control theory,Mechanical engineering,Finite element method,Mechanics,Solid modeling,Eddy current,Engineering,Thrust
Journal
Volume
Issue
ISSN
PP
99
0278-0046
Citations 
PageRank 
References 
5
0.64
15
Authors
4
Name
Order
Citations
PageRank
Gang Lv1158.07
Dihui Zeng251.31
Tong Zhou344876.83
Zhiming Liu450.64