Design of the Safe Driving and Acquisition Module for Nodeless Three-phase AC Switch Machines

Abstract

In order to reduce the cost and the volume of the driving module for three-phase AC switch machines, a design method of the safe driving and acquisition module is proposed. The designed module is realized by means of the remote communication and the local power acquisition for power conversion. The nodeless mode is employed by the hardware of the proposed module. Based on the high-power density conversion circuit, the switch machine can be powered by the three-phase AC 380V which is converted from the trackside single-phase AC 220V. The feasibility of the safe driving and acquisition module is verified by the experiment.