Energy router with virtual inertia control schemes and concurrency operation

The energy router is one unified interface solution for organizing distributed energy running in a microgrid operation mode. Because of its flexible and controllable features, this model is expected to become an important scheme for the electricity market liberalization process. Power electronic equipment could not provide inertia and damping like that of the traditional synchronous grid, which leads to poor grid-tied integrity and reliability. This paper proposes an energy router microgrid-operation model in which the AC-interface and DC-interface conventional control strategies are replaced by a virtual synchronous generator (motor) and virtual DC motor control strategy such that the energy router can mimic the inertia and damping characteristics of a rotating motor in order to improve the stability of the distributed power network. The simulation results prove the effectiveness of the energy router microgrid running mode and the control strategy.