Unified hybrid (Ac/Dc) active distribution networks droop-based load-sharing strategy

Dc transmission and distribution will become more common in the future as power electronics technology advances and costs are reduced. This work describes a novel hybrid droop-based unified strategy for power sharing among both ac and dc generating units within a hybrid ac/dc active power distribution network. The hybrid droop power sharing strategy is discussed, the proposed approach for controlling power inverters is presented and simulations using MATLAB/Simulink and SimPowerSystems are carried out. These show satisfactory results that confirm the effectiveness of the hybrid droop strategy. An experimental microgrid setup and preliminary results are presented.