Abstract This paper describes the drive control structure of the Railcab system realized at a test track at the University of Paderborn based on a distributed data processing system. The drive of this railway system, a doubly-fed linear motor, consists of two active parts distributed on the vehicles and along the track, which both have to be powered. Safe operation of the Railcabs is guaranteed by a mechanism synchronizing the current controllers via different communication channels (CANopen and radio). This measure makes possible to control the phase shift between the magnetic fields of primary and secondary which is a must for drive control. Finally measurement results are presented to prove the functionality of the described synchronization mechanism.


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