Centralized ac/dc Power Conversion for Electronic Loads in a Low-Voltage dc Power System

In this paper, an interface to be used as a centralized ac/dc converter for electronic loads is presented. The proposed interface is tested both in a simulation software and in a lab setup. The performance of the interface is studied during load transients (connection and disconnection), and during a grid transient, i.e. an unbalanced voltage dip. The result shows that the proposed interface does not affect the utility power quality in terms of low-frequency harmonics and has voltage-dip ride-through capability.