Stability and Distributed Optimization for AC Microgrid Considering Line Losses and Time Delay

With the development of distributed renewable generations, a large number generations (DGs) are connected to microgrid. Therefore, cooperative algorithms more suitable for optimal dispatch microgrid than centralized algorithms. This paper proposes novel control method microgrids, considering line losses and time delay. First, optimization model is established, optimality conditions obtained. Second, proposed, where primary achieve dispatch, secondary frequency regulation. Third, stability system under delay analyzed, robust Finally, simulation results verify effectiveness proposed method.