Control for linear induction motor drive - has on board frequency regulator designed as solid state system

摘要

The control for the linear induction train has solid state switching circuits on the vehicle for weight saving, and conventional switching for the variable frequency of the track supply loops. The vehicle system provides a frequency change control for the thrust. The length of the track loops is adjusted to suit the length of the train with the on board control compensating for loss of power when travelling over the section boundaries.