A Full Scale Superconducting Magnetic Levitation (MagLev) Vehicle Operational Line

Abstract

This paper describes the construction and main components of a full-scale superconducting magnetic levitation vehicle. The prototype, comprising four 1.5-m-long wagons, will travel a short test line of 200 meters, connecting two buildings inside the campus of the Federal University of Rio de Janeiro. The efforts to implement this technology started thirteen years ago with a small-scale prototype in an attempt to prove the concept. The second step was the construction of a functional prototype that could levitate more than one Ton. The actual stage of this project is the construction of an operational prototype mentioned above, designed to transport up to 24 passengers. This work has been reported in several previous editions of the ASC conference. New details about the elevated test line, the permanent magnetic (Nd-Fe-B) guideways, the cryostats with YBCO high critical temperature superconductors, the energy conditioning, the linear induction motor and its regenerative braking, as well as the automatic supply system of liquid nitrogen will be presented in the proposed paper. Tests with this operational prototype demonstrate the technology feasibility.

Russia’s integrated transit transport system (itts) of on the basis of vacuum magnetic levitation transport (vmlt)

“…Thermo-aerodynamic theoretical and experimental modeling of the movement of the layout of pods of VMLT in the rarefied atmosphere. a -calculation of the velocity and pressure of the gas flowing around the model of the pod of VMLT, b -schematic view of the experimental setup for the study of hypersonic air flow around the model of the pod of VMLT [33] consumption, low noise, potentially high speed and pollution-free operation [28][29][30][31][34][35][36][37][38][39][40][41][42][43][44][45][46][47][48][49][50][51]. The superconducting ceramics Y-Ba-Cu-O (YBCO), which allows one to create high magnetic fields and demonstrates the superconducting properties at liquid nitrogen temperatures (77 K), is relatively technological and not expensive, is used as a basis in many works.…”

“…These materials have been used in almost all experimental models of vehicles (manned and unmanned), developed to date. In particular, they were used in the first manned model of a magnetic levitation vehicle tested at Southwest Jiaotong University, China in 2000 [38], as well as in the first AMLT prototype of vacuum magnetic levitation transport in 1914 & 2014 [15,35] and in a full-scale, 200 m long and in HTSC-based model, built at the Federal University of Rio de Janeiro, Brazil, in 2014 & in Italy [39,40]. A number of important effects have been revealed in numerous fundamental studies of the magnetic levitation process using permanent magnets and bulk YBCO HTSC [34,[41][42][43][44].…”

Passivity-Based Control Design for Magnetic Levitation System

“…Due to many advantages of magnetic levitation system, including absence of contact, low noise, low energy consumption, it has been widely used, such as magnetic levitation bearings [1], magnetic levitation trains [2], magnetic levitation wind turbines [3], magnetic levitation vehicle operation lines [4]. Magnetic levitation system is highly nonlinear unstable system, it is a strong need to control the suspension gap.…”

A High-Temperature Superconducting Maglev Ring Test Line Developed in Chengdu, China

“…Regarding to the high temperature superconducting (HTS) Maglev using bulk high temperature superconductors (HTSCs), the prominent merit is the large-scale passive-stabilized levitation over a continuous range of equilibrium positions and orientations in an inhomogeneous magnetic field due to the pinning of magnetic flux lines inside the superconductors [ 1 ] .This new-born self-stabilization Maglev technology has attracted world-wide attentions and efforts [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] since the first manned HTS Maglev test vehicle "Century" was launched in 2000 as a principle demonstration at Southwest Jiaotong University, Chengdu, China [2] . Meanwhile, based on the prototype "SupraTrans I" [3] in IFW, Dresden in 2004, a German group developed the second-generation vehicle "SupraTrans II" [4] featured an electromagnetic turnout switch design [13] and the wireless power supply system [4] .…”

“…Meanwhile, based on the prototype "SupraTrans I" [3] in IFW, Dresden in 2004, a German group developed the second-generation vehicle "SupraTrans II" [4] featured an electromagnetic turnout switch design [13] and the wireless power supply system [4] . In 2014, Brazil made a great progress in Maglev by commissioning a 200 m full-scale HTS operational line [9] [10] , named as "MagLev-Cobra". In particular, the ATZ Company in Germany developed a high-qualified cryostat with 24 rectangular YBaCuO HTSC bulks sealed inside [8] [14] , which succeeds in two remarkable technical highlights.…”