Accurate and fast power sharing among inverters in AC microgrids with constant power loads

Droop-based control methods are used for operation of different inverters in the converter-interfaced AC microgrids. To ensure accurate power sharing among multiple inverters with fast dynamics and enhance stability in a stand-alone AC microgrid with constant impedance and constant power loads, this paper proposes a modified droop-based controller. The performance of the proposed controller is verified against two state-of-the-art controllers and the advantages of the controller are demonstrated in terms of speed, accuracy, and stability.