PERMANENT MAGNET SYNCHRONOUS MOTOR TRACTION DRIVE SYSTEM FOR SUBURBAN SERVICES IN INDIA

The Sub-Urban Services are the Backbone of Transportation System in Metro Cities of India. The riders expect comfortable journey from their Home to Workplace and vice versa. The Sub-Urban services are made up of Electrical Multiple Units which are driven by Squirrel Cage Induction Motors of lower Wattage. The Squirrel Cage Induction Motors work on low Power Factor, are noisy, prone to Vibrations and more bulky as compared to a Permanent Magnet Synchronous Motor of the same Power ratings. Also Gate Turn-off Thyristors are currently used for the Converter System which is less efficient as compared to an Insulated Gate Bi-Polar Transistor Drive. The Drive System with Insulated Gate Bi-Polar Transistor as switches for Rectifier-Inverter System driving Permanent Magnet Synchronous Motors as Traction Motors is proposed and simulated in this Paper