Multi-stage Market Operation Optimization of Virtual Power Plant Considering Flexible Load

In order to improve the energy utilization efficiency and promote the development and utilization of flexible load. this paper considers the aggregation of flexible load in virtual power plants, and carries out the optimization research on the trading strategy of virtual power plants participating in multistage markets. Firstly, the operation framework of the virtual power plant with aggregate flexible adjustable resources is designed, and each unit in the virtual power plant is modeled. Secondly, the framework of virtual power plant participating in multistage market trading is proposed, and the joint trading optimization strategy of virtual power plant participating in demand response market, peaking auxiliary service market and electricity energy market is constructed. Finally, a typical day is selected from the four seasons of spring, summer, autumn and winter respectively, and a certain region is taken as an example for example analysis to verify the effectiveness of the model.