China Star EMU Powered Vehicle

Key technologies

1.AC drive technology is adopted, and the electric drive system adopts a domestically produced GTO water-cooled converter unit with a wide speed regulation range of constant power, large shaft power, good adhesion characteristics, high efficiency and power factor.

2.The auxiliary converter device can provide VVVF and CVCF three-phase auxiliary power supplies, classify and grade the power supply to the auxiliary units, and has strong system redundancy and good energy saving and noise reduction effects.

3.The control system adopts a domestically produced distributed microcomputer network control system, which realizes the network control, logic control and self-diagnosis functions of the entire vehicle.

4.The new cooling method using main converter, main transformer oil and water composite cooling is the first in China.

5.The vehicle body is lightweight and streamlined, and the double-arch streamlined head shape is used for the first time in China.

6.The bogie adopts small wheel diameter wheels, six-link two-stage hollow shaft elastic drive, rear push-pull flat drawbar, integral wheel and hollow axle disc brake, herringbone gear and other technologies.