Re-adhesion control for high-speed electric railway with parallel motor control system

A parallel induction motor drive with PWM inverter control has been developed for high-speed railway applications. This paper describes a re-adhesion control system to improve tractive efficiency and to reduce wheel abrasion. The adhesion characteristics of the high-speed train are analyzed to obtain the maximum adhesion effort and the re-adhesion control system is designed as a subsystem of induction motor control. In order to verify the performance of the proposed system, a downscaled re-adhesion control simulator is set up and running tests are executed.