A novel control method based on consensus algorithm for microgrids

摘要

Distributed control methods generally implemented with droop control have been widely applied in the energy management of microgrids. However, the robustness and stability of distributed control has been influenced by the size and diversity of the microgrid structure and compositions. Meanwhile, centralized control has been considered lack of flexibility and expansibility. In this paper, a novel control method based on consensus algorithm is proposed for improving current distributed energy management of microgrids. Taking advantages from distributed droop control framework, which would maintain a flexible and reliable microgrid with a manageable communication network, but also respond to the disturbance quickly, the proposed consensus based control method can enhance the speed and stability of distributed energy management. Simulations of hybrid AC-DC microgrids are also developed for the validation of theoretical analysis and effectiveness of the proposed method.