Comparison of Different Power Sharing Methods in AC- and DC-microgrid with Power Electronic Interfaced Distributed Generations

In the islanded operation of microgrids, various control strategies have been developed to guarantee stable operation of microgrids. In this paper, different power sharing methods such as droop controller, average power sharing (APS) method, and master-slave method are compared in AC and DC islanded microgrids with converter-based distributed generations (DG). The suitable controller (voltage controller and power sharing controller) for each DG is designed. Different scenarios of load variations are tested using Matlab/Simulink sofware to compare the accuracy and effectiveness of power sharing methods. Based on the simulation results, suitable power sharing method in each microgrid (AC or DC) is chosen based on its performance and minimum power sharing error.

کلیدواژه ها:

Converter-Based Power Sources ، Distributed Generation ، Islanded Microgrid ، Proportinal Resonant Controller