Research Of TCU Based On MVB

Nowadays, motor train unit has been developed more and more speediness, automation and comfort. Intelligentialize, networked, and informationize and securitization has become most important things for motor train unit control. Traction converter system and network control are key technologies which have more influence for safety running. It has so significant purpose to produce the tools of converter system and network control.In this paper, we structure the draft control circuit of motor train unit, and then stimulate it with Matlab/Simulink. The whole circuit includes four quadrant rectifier design and traction converter design. Transient direct current control algorithm and predict direct current control algorithm which utilize SPWM adjustment method are two algorithms for designing the four quadrant pulse rectifier. Traction converter was designed based on the methods of indirect rotor field-oriented control algorithm and hysteresis current tracking PWM technology. According to the TCN and the MVB platform for network control and fault diagnosis, we realized PLC program for four quadrants pulse rectifier directly current control modules and traction inverter motor vector control module indirectly with Multiprog software. We also set up a communication module between Matlab and TCU at the same time.The stimulating result shows that the direct current voltage is stable around3600V in0.7second each method of transient direct current control algorithm and predict direct current control algorithm. The commutation between Matlab and TCU can be set up in the meantime. The good result which shows on Matlab stimulation and PLC programming can reach to the requirement about for three-phase half bridge type traction inverter modules.With the emu’s traction variable current and control system of the simulation platform, we complete TCN research, circuit design and pull-in control of motor train unit. We had good stimulation testing result about four quadrant pulse rectifier and traction inverter. It synchronizes in MVB network control and fault diagnosis of the simulation development platform. All those result give more development for combing traction variable current and network control.