HXD2B Electric Locomotive Research On Traction Drive Control System

Electric locomotive is one of the important trends in the development of railway transportation in China.With the higher-level design of freight transportation structure,the“revolutionary” adjustment of railway,the progress of society,and even Patriotism is more important.Traction control system is an important part of the key technology of electric locomotive.In this paper,the traction control system of HXD2 B electric locomotive is modeled,simulated and analyzed.This paper first introduces the electrical structure and function of each link of the traction control system of HXD2 B electric locomotive,and then studies the rectifier and inverter control technology in detail.The rectifier is a two-stage topology,which adopts double closed-loop control of voltage modulated SPWM outer loop and instantaneous current inner loop.The central DC circuit adopts LC filter circuit,the inverter adopts three-phase voltage type two-level topology,and the rotor flux oriented vector control.The basic principle,implementation method,parameter calculation and related control strategy of rectifier inverter are studied.Based on the analysis of the traction control system of HXD2 B electric locomotive,through the research on the traction control system of HXD2 B electric locomotive,each module of the traction control system of HXD2 B electric locomotive is modeled and simulated by using Matlab/Simulink platform.Through the analysis of grid voltage,phase current,central DC circuit voltage,traction torque response and stator flux braking Static and dynamic capabilities.The research on the traction control system of HXD2 B electric locomotive can provide a theoretical reference for the further development and improvement of locomotive accessories.