A laboratory model of a dual active bridge DC-DC converter for a smart user network

Abstract

The paper presents an application of a dual active bridge DC-DC converter for a smart user network that is a microgrid with a DC-powered local network (or DC bus). In such a microgrid the DC-DC converter connects a battery energy storage system to the DC bus. In a previous paper, the authors demonstrated that the DC-DC converter is able to assure a stable DC bus voltage to a reference value; performance was evaluated by means of numerical experiment using Simplorer. In this paper the DC-DC converter is further investigated using a 400W laboratory model of a smart user network; the laboratory results demonstrate that the converter provides a high level of reliability and resilience against disturbances.