Abstract:
All microgrids in multi-microgrid (MMG) systems are set as energy management entities with equal status, and each of them could set the electricity transactive price and determine the electricity amount of trading with other microgrids. The distributed energy management architecture without a central management entity was constructed. The constraint protocols on the electricity price and electricity amount were proposed. The cooperative game model of MMG system was established and a benefit compromise algorithm was proposed to make all microgrids accept each other's energy dispatching strategy by means of benefit compromise. Then, the energy management scheme of MMG system was unified. The results show that the electricity price strategy established in accordance with the constraint protocols is the only price set that does not harm the benefits of all microgrids. Based on this price strategy, the power trading scheme between microgrids obtained by implementing the benefit compromise process is the only energy dispatching scheme accepted by all microgrids on the premise of considering the interests of all microgrids, proving that the cooperative game model can effectively realize distributed energy management of MMG systems.