Dynamic Aggregation and Analysis Method of Demand Response Resources of VPP Based on Market Mechanism

With the development of the renewable energy, aggregating the distributed energy to form a VPP is an effective way to deal with the fluctuation of the renewable energy. Based on the analysis of the load flexibility in VPP, this paper proposes a rolling optimization model for distributed grid and VPPs. The day-ahead dispatching process is to minimize the operation cost of the grid, and the real-time dispatch focus on reducing the fluctuation of the loads and the renewable energy. In this way, the flexibility of the loads is fully used and the operation cost of the grid is greatly reduced. At last, a three-bus case study is implemented and the advantages of this dispatching method is proved