Combined active and reactive power control of power converter building block to facilitate the connection of micro-grid to Electric Power system

This paper proposes an integrated power converter building block (PCBB) to facilitate the connection of hybrid (DC+AC Bus) micro-grid to Area Electric Power system (EPS). Through combined active power and reactive power control, the PCBB can facilitate both the connection between DC and AC bus within micro-grid and the connection of hybrid micro-grid to Area EPS simultaneously. It achieves power (P) and power quality (P,Q) control of the system. Simulation results are provided to demonstrate that with proposed controller for PCBB, the single-phase hybrid micro-grid can function properly both in Area EPS-connected mode and stand-alone mode; moreover, it can smoothly transit between the two modes.