Drive: Contactless drive and control system
Driveway + long stator
Levitation system
As traction drive for the vehicle a twice fed linear asynchronous machine is used. She consists of a long stator along the driveway which forms the secondary part as well as a short stator in the vehicle as the primary part. Both components have a 3 phase winding. The long stator is continuously fed with 3-phases alternating voltage 400 V 50 Hz directly from the national grid.
The control of the traction drive occurs on the vehicle side. The drive concept enables simultaneous independent operation of several vehicles on the track and a contactless transmission of energy from the longstator towards the vehicle. The short stator is at the bottom of the vehicle.
Drive principle
Vehicle: Design
The vehicle consists of a self-carrying frame construction. Significant components are the carry and guiding system with four Cryostates, the vehicle part of the drive (traveller)), the board energy supply system and the vehicle control.
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Operational and safety concept
The Demonstrator serves, primarily, the test of single components and their interaction in the overall system. The test carrier is launched exclusively from the vehicle. The vehicle can be stopped at every place of the driveway and the direction of the travel or the destination can be changed. Automatic or manual operation is possible.
Characteristics of the Demonstrator
Track Gauge, rail middle | 575 mm |
Track length | 7 m |
Flux density at superconductor height | 0,6 T |
Power demand linear drive | 3,5 kVA |
Length | 1.322 mm |
Width | 800 mm |
Mass empty | 170 kg |
maximum payload | 350 kg |
Energy storage
| 42 V |
maximum power demand | 700 W |
Distance | 13 ... 18 mm |
constructive air gap | 10 ... 15 mm |
maximum thrust | ± 100 N |
maximum acceleration | 0,5 m/s2 |
Demonstration speed | 1,0 m/s |
