Tiansuo AC Drive Passenger Electric Locomotive

Key technologies

1.The electric drive system adopts a domestically produced GTO water-cooled converter unit and a 1225kW high-power asynchronous traction motor with a wide speed regulation range of constant power, large shaft power, good adhesion characteristics, high efficiency and power factor.

2.The control system adopts a domestically produced distributed microcomputer network control system, and adopts redundant design to improve the reliability of operation. Distributed microcomputer control system, vehicle-level MVB bus and train-level WTB bus realize the network control, logic control and self-diagnosis functions of the entire train.

3.The vehicle body adopts a lightweight overall load-bearing structure and streamlined appearance.

4.The hollow shaft double-sided six-link drive method is adopted; the traction motor, drive gearbox, hollow shaft drive device, bracket and brake beam are integrated into a whole; the frame suspension structure is adopted; the traction device is a middle push-pull low-slope drawbar; the basic brake adopts a wheel-mounted disc brake device.

5.The transformer is designed with a horizontal structure, mounted as a hanging unit of the vehicle body, and functions as an integrated multi-winding fully split-type transformer. The secondary absorption reactor, auxiliary converter reactor and train power supply reactor share the same oil tank and a set of cooling devices.

6.Use a combined braking method of regenerative braking and air braking.