New 2-D Quasi-Analytical Computation of Eddy Currents in Axisymmetrical Problems: Application to Tubular Linear Induction Motor

Sari, Moussa; Ouazir, Youcef; Mezani, Smaïl

doi:10.1109/tmag.2022.3233182

Cited by 2 publications

(1 citation statement)

References 27 publications

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“…This is mainly due to the magnetic field, which contains a continuous spectrum of space harmonics (SH) [1], and the nonlinear character of its materials. The requirement of precision within the design process requires the use of accurate numerical methods [2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Space Harmonics Effects on Performances of Linear Induction Motors: Modelization and Characterization

Bensehila,

Bouzidi,

Takorabet

2023

Actuators

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This article presents the impact analysis of space harmonics’ presence on a single-sided three-phase linear induction motor, along with a comprehensive parametric investigation. The presence of space harmonics often reduces the linear induction motor’s performance. The electromagnetic phenomena are governed by Maxwell’s equations. The chosen mathematical model uses a 2D formulation with magnetic vector potential. The model implementation is performed using the finite element method on the free Gmsh-GetDP platform. The electromagnetic thrust is calculated in the current excitation case using two numerical models of the finite element method with and without term-generating space harmonics in order to highlight their effect. The adaptation to voltage supply operation is obtained via equivalent electric circuits through the calculation of the operational impedance. The choice of the machine’s parameters by the designer in order to enhance its performance or reduce energy consumption is a difficult task. The analysis and the determination of the dependence of the parameters and the performance are necessary. The main objectives of this study are to determine this dependency and to analyze the space harmonic impact of the linear induction motor’s parameters on its performances. A comparative exploration of space harmonics’ presence using two numerical models (single and multiharmonics) and an assessment of the parametric effect of space harmonics’ presence on various machine characteristics such as thrust, efficiency, and power factor have been carried out. The motor’s characteristics (i.e., thrust, efficiency, and power factor) strongly depend on parameters such as the pole pair number and conductivity. Improving the operation and maximizing the performance of such a machine for a given specification requires the use of optimization algorithms. Motor characteristics (thrust, efficiency, and power factor) are highly dependent on parameters such as the number of pole pairs and conductivity.

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