Based on the CRH3 traction driver system, the simulation model is constructed based on SIMULINK (Fig. 3). Compared to CRH2, there are two secondary windings and two single phase pulse rectifiers. The two output DC powers are in parallel connection, and supply an inverter. The inverter is easier to control due to the two-level topology, but the LC filter is needed in the DC link. In addition, the power of the traction system is much greater than that of CRH2.