Analysis of Economic Operation Model for Virtual Power Plants Considering the Uncertainties of Renewable Energy Power Generation

In recent years, the penetration rate of new energy has continued to increase, and the requirements for flexibility of the power system have continued to increase. Virtual power plants (VPPs) have been proposed as a solution. On the one hand, the VPP can assist in stabilizing the fluctuation of the power system by coordinating the aggregated resources, and on the other hand, it can participate in the power market as a whole to obtain economic benefits. How to balance the above two functions is an urgent issue for VPP operators. On the one hand, the wind and photovoltaic power generation aggregated by VPPs has greater uncertainty, which brings difficulties to the scheduling of VPPs. On the other hand, the current mode of VPPs participating in the market is not mature enough, and it is difficult to introduce a large number of VPPs to participate in the power market. Therefore, this paper takes the VPP that includes multiple distributed energy sources such as gas turbine power generation, wind power, photovoltaic power generation, energy storage facilities, and demand response resources as the research object. Based on the uncertainty of wind power and photovoltaic power, this paper analyzes the operating characteristics of internal resources of the VPP, establish a economic operating model, and verify the effectiveness of the model through an example, so that to provide a reference for the practical application of VPPs.