Auxiliary Converter System and It’s Characteristic Analysis of Locomotive HXD1C

Abstract

Auxiliary converter system of locomotive HXD1C and its logic control process was illustrated; the equivalent impedance of power circuit and characteristic of input inductance and DC-link circuit was analyzed; a method of estimating and computing the voltage and current on IGBT was proposed. Moreover, by simulation, the analysis of voltage/current waves for power circuit was done, reference was provided for ensuring the normal running and performance improvement of the auxiliary converter