Dynamic Economic Dispatch of AC/DC Hybrid Microgrid Based on Consensus Algorithm

摘要

As the proportion of renewable energy in the microgrid increasing, alternating current/direct current (AC/DC) hybrid microgrid is becoming an effective way to improve the utilization rate of renewable energy. Distributed control makes the distributed generation mode of microgrid more flexible and robust. The communication network topology of AC/DC hybrid microgrid is considered, and a dynamic economic dispatch method based on consensus algorithm and quadratic adjustment plan is proposed. In this method, a dispatch cycle of optimization problem is decoupled into 24 single-period problems. In each period, the goal is to minimize the generation costs of microgrid. The marginal operation costs of each distributed generation unit is selected as the consensus variable. Finally, simulation results demonstrate the validity of the developed results.