Experimental Validation of a Dynamic Equivalent Model for Microgrids

This paper presents the results of an experimental validation of an equivalent modeling for microgrids. The main goal is to represent, with a simplified model, the dynamic response of a microgrid, in terms of active and reactive power exchanges at the point of common coupling, to variations of voltage and frequency. A nonlinear equivalent model with operational constraints is proposed. An identification procedure is used to define model parameters. To validate the approach, a set of experimental tests have been carried out on a real LV microgrid considering different configurations. Results show the effectiveness of the proposed technique and applicability to dynamic simulations.