The performance of induction levitators
Abstract
The present investigation is concerned with the performance of induction levitators, which are employed in vehicles for contactless transport systems, utilizing magnetic levitation (Maglev). A small model (38 cm long) of an induction levitator is shown. The armature consists of a laminated 'u' shaped iron yoke. Around the limbs of the yoke are wound two primary excitation coils carrying single phase 50 Hz current. Eddy currents, induced in the conducting secondary, produce a force of repulsion between secondary and yoke. A lateral stabilizing force can also be obtained. A description is presented of a study of the characteristics of these forces. Attention is given of a finite element model and the application of the Galerkin weighted residual technique, experimental and calculated results, and a design study of two single phase levitators for a 50 tonne Maglev vehicle.
- Publication:
-
IEEE Transactions on Magnetics
- Pub Date:
- September 1984
- DOI:
- 10.1109/TMAG.1984.1063317
- Bibcode:
- 1984ITM....20.1684E
- Keywords:
-
- Electric Motor Vehicles;
- Finite Element Method;
- Induction Motors;
- Magnetic Levitation Vehicles;
- Propulsion System Performance;
- Design Analysis;
- Eddy Currents;
- Magnet Coils;
- Motion Stability;
- Performance Prediction;
- Performance Tests;
- Electronics and Electrical Engineering