Cooperative Operation Mechanism of Multi-Energy Microgrids Based on Nash Bargaining Method

With the increasing openness of the electricity sales side of the electricity market, different stakeholders can improve economic benefits through cooperative operation. Aiming at a type of multi-energy microgrid with electricity-heat coupling, this paper proposes a multi-microgrid operating mechanism based on cooperative game. Taking the operating cost of each microgrid's transaction with the distribution network as the breaking point of the negotiation, the Nash bargaining method is used to solve the electric energy transaction volume and revenue transfer between each microgrid, so that the operating cost of each microgrid reaches the Pareto optimal. The total operating cost of all microgrids is minimized. Taking into account the non-convexity of Nash bargaining solution, the bargaining equilibrium problem is converted into two sub-problems and solved with the Yalmip-Ipopt tool. Finally, we proves the effectiveness of the method proposed in this paper by simulation, and provides a reference scheme for the cooperative operation mechanism of multiple microgrids.