ZFC Superconductor Magnetic Levitation System "Maglev-Tuga" - Guidance and Lateral Stability

06/14/2018

This dissertation makes the comparison between two types of geometries for a magnetic levitating vehicle using YBCO zero field cooled (ZFC) high temperature superconductors (HTS) under: a rectangular geometry, using rectangular bulks of permanent magnets (PM) for the tracks, and a car with superconductors; and a cylindrical geometry, consisting of a cylindrical magnetic track and superconductors with the geometry of a half ring. The metric for comparison is the lateral stability. The analysis made is the following: for the rectangular geometry, a prototype is used to make an analysis to estimates the lateral dynamics. For the cylindrical geometry, 2D and 3D simulations are made using a finite element method software. The simulations made are for the dimensioning of the cylindrical geometry, computing the levitation and lateral forces of the system. It was found that the rectangular geometry presents a non-linear response for a lateral displacement and the maximum displacement for which the system is still stable is around 21 mm. For the cylindrical geometry, the response is very close to linear and it has an inherent stability. However, the maximum displacements are lower than 21 mm, since the possible geometries have a small air gap, and the air gap is closely related to the possible lateral movement, due to the nature of the geometry.

Authors in the community:

• 

  F

  Francisco Ferreira da Silva

  ist175947

Supervisors of this institution:

• 

  P

  Paulo José da Costa Branco

  ist13330

electrical-engineering-electronic-engineering-information-engineering - Electrical engineering, electronic engineering, information engineering

eng - English

Instituto Superior Técnico