Research on the Coordinated Configuration of Distribution Grid and Microgrid with Distributed Flexible Resources

Microgrids usually contain distributed photovoltaic, distributed wind turbines, energy storage systems and charging piles and other flexible resources, through the description of the power characteristics of the various components, the external equivalent model of the microgrid is formed. On this basis, the radiance and PV power data of the area where the microgrid is located can be obtained by software simulation. Establishment of a two-layer optimal allocation algorithm for distribution grids and microgrids, where the outer layer represents the total investment cost of the system and the inner layer represents the total operating cost of the system. Co-optimization results can be obtained by optimizing the solution. Cases in typical regions show that the algorithm proposed in this paper has high efficiency and applicability, and can meet the synergistic optimal allocation of microgrids and distribution grids.