Virtual power plant economic dispatch based on real-time variant green certificate

Abstract

In order to solve the problem of the influence of time-varying green certificate on the operation benefit of virtual power plant, promote the full interaction between virtual power plant and large power grid, and improve the new energy consumption capacity, a virtual power plant economic dispatching model based on time-varying green certificate was proposed. The biggest difference between the time-variant green certificate and the traditional green certificate is that the green certificate of new energy generation is related to the transaction price of electricity in this period, so that the green certificate can reflect the cost paid by the market subject to consume new energy in this period. The influence of time-variant green card on the operation mode of virtual power plant is analyzed. By introducing the green card revenue function based on time-varying green card into the optimization model, a virtual power plant economic scheduling model with time-varying green card was constructed. The simulation results show that the virtual power plant will use adjustable resources with relatively high cost to promote the consumption of new energy and obtain higher green license income. The results show that the time-varying green card is helpful to improve the market participants' new energy consumption price tolerance, thus promoting the new energy consumption capacity.