Abstract:
High temperature superconductors (HTSs) can produce
a strong magnetic levitation force with self-stabilizing feature
and hence have attracted much attention for applications in maglev
transportation systems. For the linear motion of transportation, a
linear drive is an obvious advantage. This paper presents the design
and analysis of a permanent magnet (PM) linear synchronous
motor for driving a small-scale prototype vehicle with PM-HTS
bulks used for the levitation. The linear motor consists of PMs on
the vehicle sides and stator windings in the slots of side tracks. The
three phase windings are supplied by a 3-phase inverter, and are
controlled with a brushless DC control scheme. Analysis and calculation
details of magnetic fields and driving force about the motor
prototype are presented.
