A dynamic router for microgrid applications: Theory and experimental results

Abstract

Efficient regulation of the energy transfer between generating, storage and load subsystems is a topic of current practical interest. A new strategy to achieve this objective, together with its corresponding power electronics implementation, was recently proposed by the authors. The device is called dynamic energy router (DER) because, in contrast with current practice, the regulation of the direction and rate of change of the power flow is done without relying on steady-state considerations. In this paper it is shown that, unfortunately, the DER becomes non-operational in the (unavoidable) presence of losses in the system. Hence, we propose a new DER that overcomes this problem. Experimental evidence of the performance of the original and new DER is presented.