SupraTrans

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A magnet hovers over a high-temperature superconductor (approx. −197 ° C) cooled with liquid nitrogen .

SupraTrans is a transport system based on superconducting magnetic bearings , which is characterized by smooth and inherently stable floating. The basis of this transport system is a magnetic rail and several high-temperature superconductor blocks (HTSL), which are cooled to −196 ° C.

The position in relation to the magnetic rail that is present in the process of cooling is permanently saved in the superconductor blocks. Therefore, the cooling takes place at a defined distance from the magnetic rail. After removing the spacer, a non-contact movement (floating effect) is possible. Liquid nitrogen is currently used for cooling .

history

SupraTrans - Demonstrator 05/2002 - 12/2004

SupraTrans demonstrator

This demonstrator for superconducting magnetic levitation technology was developed by seven partners from transport companies, rail technology and public research. The presentation took place on the 125th anniversary of the electric locomotive at the InnoTrans 2004 rail technology fair in Berlin .

Driving test facility SupraTrans II 07/2009

At the IFW Dresden , with the financial support of the economic stimulus package II, the construction of an inherently stable floating passenger or goods transport system was started. This 80 m long demonstration and test track in the form of an oval circuit includes a switch and a vehicle for passenger transport.

The test facility was set up in autumn 2010 in a hall in Dresden-Niedersedlitz . The official opening was on February 8, 2011 in the presence of the Saxon State Minister for Science and Art, Sabine von Schorlemer . With the test track, technical extensions such as a curved track (curves), control technology for the simultaneous operation of several vehicles, continuous power supply of the vehicle, track branching and a second braking system could be tested under practical conditions. A prototype for an electromagnetically switchable route was also created.

In accordance with an agreement between the IFW Dresden and the Karlsruhe Institute of Technology (KIT), the SupraTrans II test drive was moved from Dresden to Karlsruhe at the end of 2017, where tests are carried out in the outdoor area and using cryogen-free superconductor cooling technology.

technology

The track consists of individual segments lined up next to one another, the track width is 1000 mm. In addition, the route includes line conductors that provide the energy for the vehicle.

The vehicle is driven by a linear motor, which is attached to the underside of the vehicle. The vehicle is supplied with energy via an inductive transmission system, which is integrated in the route and continuously transmits the required energy. Thus it is possible to transfer the energy through the air gap to the consumer in the vehicle.

The SupraTrans II can optionally be controlled automatically or manually. Thanks to the control technology used , it is possible to determine the vehicle position and monitor compliance with the maximum permitted speed.

Footnotes

  1. ↑ SupraTrans test facility at IFW Dresden goes to Karlsruhe. Leibniz Institute for Solid State and Materials Research Dresden (IFW), September 6, 2017, accessed on October 19, 2017 (press release).
  2. ↑ Melanie Hofheinz: KIT makes it possible: Karlsruhe gets a suspension railway! In: ka-news.de. November 13, 2017, accessed March 10, 2018 .

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