Dynamic behavior of DC microgrids under load types and controlled-distributed energy resources

Rapid development of Distributed Energy Resources (DERs) and DC-powered loads entails the possibility of DC micro-grids to revenge conventional AC distribution networks. In addition, a continuous evolution of the power electronic technology allowing the highest possible power of DER production also makes the DC micro-grids more feasible in the near future. Although energy efficiency and steady state characteristics of the DC micro-grids becomes more mature, transient behaviors of DC microgrids under different control aspects and loads are under-investigated. In order to analyze and validate the dynamic behaviors of DC microgrids, a scalable-configurable laboratory DC microgrid test-bench is implemented and presented in this paper.