The Simulation Analysis of Harmonic Currents on CRH2 Electric Multiple Units

The working principle and controlling method of the rectifier of CRH2 EMU in China are studied in this paper.In order to study the current harmonic behaviors of CRH2 EMU grid voltage,Electric Multiple Units PWM rectifier model is set up with MATLAB/SIMULINK software as the platform and CRH2 Electric Multiple Units as the prototype,whereby the current changing laws of the rectifier grid voltage of Electric Multiple Units under the different traction power industrial conditions and the different grid voltages are analyzed and summarized in this paper.