Low-Carbon Economic Dispatch of Power System with Wind Power Considering Dual Demand Response and Ladder-Type Carbon Trading Mechanism

Low-carbon, clean, efficient and energy-saving is the development trend of the power industry. Building a new power system with new energy as the main body, developing a carbon trading market, and giving full play to the scheduling potential of user-side resources are important measures to achieve low-carbon and safe operation of the system. Therefore, the paper proposes a system low-carbon economic dispatch model considering demand response and carbon trading mechanism. Firstly, the price-based demand response and incentive-based demand response models are established based on the user-side load characteristics under different driving modes. Secondly, the baseline method is used to allocate carbon quotas to the system, and the ladder-type carbon trading mechanism is proposed to construct a carbon transaction cost model to control the carbon emissions of the system. Finally, based on the dual demand response model and the carbon transaction cost model, an optimization model is established to minimize the sum of coal consumption cost and start-stop cost of thermal power units, operation and maintenance cost of wind turbines, carbon transaction cost, compensation cost of incentive demand response, wind curtailment and load loss cost, and the Cplex solver is used to solve the model. The results show that the proposed model can effectively reduce the cost and carbon emissions of the system while taking into account the low carbon and economy of the system.