Modeling and simulation at temporary poweroff state of EMU traction driver system

XIE Ge, LU Qinfen
(College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China)

Abstract: In order to research the performance of electric multiple unit(EMU) traction driver system at different states, according to the actual structure and parameter of CRH2 EMU, the simulation model of its traction driver system was established by Matlab/Simulink software. In this model, the transient current control and indirect rotor magnetic field orientation vector control strategy were adopted by traction motor, and the sine pulse width midulation(SPWM) and space vector pulse width modulation(SVPWM) modulate method were used by traction converter. On this basis, operation performance of traction converter was simulated and analyzed under different train speed when the pantograph temporarily disconnect to grid. The simulation results provide a reference for the actual design and performance analysis of traction converter.
Key words: traction converter; transient current control; vector control; temporary poweroff; CRH2 electric multiple unit(EMU)