According to the cooperative relationship between microgrid and distribution network, this paper proposes an optimal allocation method for distributed generation capacity in microgrid based on the cooperative game theory. Firstly, defining the benefit function of cooperative operation between microgrid and distribution network, and taking this function as the objective function of optimization. Secondly, under the premise of maximizing the objective function, combining with Shapley value theory to allocate benefits among participating members and achieve optimal allocation of distributed generation capacity. Finally, construct a simulation scenario for simulation verification. The results indicate that the method of this paper can make reasonable decisions and allocate the distributed generation capacity that can guide the reasonable planning to construct the power grid and help improve the overall operation level of the microgrid and distribution network.
 

Microgrid, Distribution network, Objective function, Cooperative game