Optimized Linear Motor for Urban Superconducting Magnetic Levitation Vehicles

Roberto André Henrique De Oliveira; Richard Magdalena Stephan; Antônio Carlos Ferreira

doi:10.1109/TASC.2020.2976589

Optimized Linear Motor for Urban Superconducting Magnetic Levitation Vehicles

Roberto André Henrique De Oliveira, Richard Magdalena Stephan, Antônio Carlos Ferreira

Department of Mechanical Engineering

Universidade Federal do Rio de Janeiro

Research output: Contribution to journal › Article › peer-review

13 Citations (SciVal)

Abstract

The normal force that exists between primary and secondary of a linear motor plays an important role in Magnetically Levitated (MagLev) trains. In the particular case of the superconducting magnetic levitation (SML) method, based on the diamagnetic property of high-temperature superconductors (HTS) in the proximity of rare-earth permanent magnets, this issue is even more critical, as there is no control of the levitation gap, which changes according to the load. In this article, the previous experience of traction systems of MagLev trains in commercial operation serves as a background for the study and will be reviewed. The experience of other SML projects will also be considered to reach the proposed topology, similarly to the process of genetic evolution. The proposed solution for the normal force issue consists of a linear induction motor (LIM) optimized for an urban SML vehicle. Analytical equations and simulations with the finite element method (FEM) are presented. An innovative workbench for velocity tests was developed to measure the parameters of interest. Simulation and experimental results confirm the improved performance of the proposed LIM. The final results with the short primary LIM, designed and tested, showed excellent results. The LIM can be qualified as 3 times low: low-cost solution, for low-speed SML vehicles, and with low-normal force amplitudes.

Original language	English
Article number	9016111
Journal	IEEE Transactions on Applied Superconductivity
Volume	30
Issue number	5
DOIs	https://doi.org/10.1109/TASC.2020.2976589
Publication status	Published - 1 Aug 2020

Bibliographical note

Funding Information:
Manuscript received February 8, 2019; revised October 4, 2019; accepted February 13, 2020. Date of publication February 27, 2020; date of current version March 13, 2020. This work was supported in part by the Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro, in part by the Brazilian Development Bank, in part by the National Council for Scientific and Technological Development, in part by the CAPES Finance Code 001, Instituto Alberto Luiz Coimbra de Pós-Graduação e Pesquisa de Engenharia, and in part by the IFW-Dresden (Germany). This paper was recommended by Associate Editor L. Chiesa. (Corresponding author: Roberto André Henrique de Oliveira.) The authors are with the Electrical Engineering Program, Federal University of Rio de Janeiro, Rio de Janeiro 21941-901, Brazil (e-mail: raholiveira@ gmail.com).

Publisher Copyright:
© 2002-2011 IEEE.

Keywords

Finite element methods
linear induction motors
magnetic levitation
permanent magnets
superconductors

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

Access to Document

10.1109/TASC.2020.2976589

Cite this

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title = "Optimized Linear Motor for Urban Superconducting Magnetic Levitation Vehicles",

abstract = "The normal force that exists between primary and secondary of a linear motor plays an important role in Magnetically Levitated (MagLev) trains. In the particular case of the superconducting magnetic levitation (SML) method, based on the diamagnetic property of high-temperature superconductors (HTS) in the proximity of rare-earth permanent magnets, this issue is even more critical, as there is no control of the levitation gap, which changes according to the load. In this article, the previous experience of traction systems of MagLev trains in commercial operation serves as a background for the study and will be reviewed. The experience of other SML projects will also be considered to reach the proposed topology, similarly to the process of genetic evolution. The proposed solution for the normal force issue consists of a linear induction motor (LIM) optimized for an urban SML vehicle. Analytical equations and simulations with the finite element method (FEM) are presented. An innovative workbench for velocity tests was developed to measure the parameters of interest. Simulation and experimental results confirm the improved performance of the proposed LIM. The final results with the short primary LIM, designed and tested, showed excellent results. The LIM can be qualified as 3 times low: low-cost solution, for low-speed SML vehicles, and with low-normal force amplitudes.",

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author = "{De Oliveira}, {Roberto Andr{\'e} Henrique} and Stephan, {Richard Magdalena} and Ferreira, {Ant{\^o}nio Carlos}",

note = "Funding Information: Manuscript received February 8, 2019; revised October 4, 2019; accepted February 13, 2020. Date of publication February 27, 2020; date of current version March 13, 2020. This work was supported in part by the Funda{\c c}{\~a}o Carlos Chagas Filho de Amparo {\`a} Pesquisa do Estado do Rio de Janeiro, in part by the Brazilian Development Bank, in part by the National Council for Scientific and Technological Development, in part by the CAPES Finance Code 001, Instituto Alberto Luiz Coimbra de P{\'o}s-Gradua{\c c}{\~a}o e Pesquisa de Engenharia, and in part by the IFW-Dresden (Germany). This paper was recommended by Associate Editor L. Chiesa. (Corresponding author: Roberto Andr{\'e} Henrique de Oliveira.) The authors are with the Electrical Engineering Program, Federal University of Rio de Janeiro, Rio de Janeiro 21941-901, Brazil (e-mail: raholiveira@ gmail.com). Publisher Copyright: {\textcopyright} 2002-2011 IEEE.",

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Optimized Linear Motor for Urban Superconducting Magnetic Levitation Vehicles

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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