Dynamic Improvement of DC Microgrids Using a Dual Approach Based on Virtual Inertia

In this paper, inspired by the concept of virtual inertia in alternating current (AC) systems, a impedance controller is proposed for dynamic improvement direct microgrids (DCMGs). A simple and inexpensive method injecting into system used to adjust output power each distributed generation unit without using additional equipment. The consists two components: capacitor inductor. These components can change rate DC bus voltage also improve transient response. small-signal analysis carried out verify impact control strategy. Numerical simulation studies validate effectiveness solution increasing DC-MGs.