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Prediction of Conductor Ratio for Tubular Linear Induction Motors using Finite Element Method and Response Surface Methodology

Journal of Magnetics, Volume 27, Number 3, 30 Sep 2022, Pages 298-302
Min-Ro Park (Department of Electrical Engineering, Soonchunhyang University), Kyu-Seob Kim * (Department of Automotive Engineering, Gyeongsang National University)
Abstract
In many countries, the demand for motors has rapidly increased. For equipment automation and energy reduction,
motors are efficient machines and play an important role in alleviating the current energy crisis. However,
rotary machines have been studied instead of linear machines. Furthermore, tubular linear induction
motors (TLIMs) have been developed for use in industry, but the characteristics of these machines have not
been analyzed. In this study, using the finite element methodology (FEM), a TLIM was examined using the
ratio of conductor thickness and back iron. The design of experiment (DOE) and response surface methodology
were used to obtain this result. The TLIM is modeled to obtain thrust force in the steady state. Furthermore,
conductor and back iron thickness are efficiently assigned using the DOE. The central composite design
introduced in this study is used in various DOE methods. As a result, the conductor and back iron thickness
ratio is obtained at an optimum value. This ratio can be used to design the TLIM for low voltages.
Keywords: design of experiment (DOE); finite element method (FEM); equivalent magnetic circuit network method; optimization; tubular linear induction motor (TLIM); response surface methodology (RSM)
DOI: https://doi.org/10.4283/JMAG.2022.27.3.298
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