Low-Carbon Economic Dispatch Based on Ladder Carbon Trading Virtual Power Plant Considering Carbon Capture Power Plant and Power-to-Gas

Under the background of energy complementarity and low-carbon economy, virtual power plant (VPP) is an effective carrier for achieving optimal allocation of regional resources and new energy consumption. At the technical level,the CO2 recycling through carbon capture power plant (CCPP) and power-to-gas (P2G) conversion devices was realized, a CCPP-P2G coupling model was established, and a price based demand response model considering user satisfaction on the load side was introduced. In terms of low-carbon policy, the ladder carbon trading mechanism was introduced into VPP to constrain carbon emissions. Then, with the goal of minimizing the total cost, a low-carbon economic dispatch model for VPP was established. By setting different scheduling scenarios for comparison, the effectiveness of the model in low-carbon economy operation of VPP was verified, and the impact of carbon trading parameters on the carbon emissions and costs of VPP was explored through sensitivity analysis. The results show that the model has guiding significance for VPP low-carbon economic scheduling.