SYSTEM FOR DRIVING ELECTRIC ROLLING-STOCK

PROBLEM TO BE SOLVED: To provide an electric rolling-stock driving system, capable of automatically suppressing a slip without using computer control, and causing no acceleration decrease in the whole organization, concerning the electric rolling-stock driving system driving wheels by an induction motor. SOLUTION: The induction motor for a car in front of the organization and the induction motor for the car at the rear of the organization are electrically connected in parallel. Alternately, values arithmetically operated from the average of currents flowing from all power conversion circuits are used for estimated speed and control and the cars are operated by the same voltage amplitude and frequency via a plurality of power conversion circuits loaded on the leading and trailing cars. COPYRIGHT: (C)2011,JPO&INPIT