Low-Carbon Economic Dispatching of Combined Heat and Power System Considering Electric-thermal Integrated Demand Response

Abstract

With the development of energy interconnection systems, integrated demand response offers new solutions for the optimal operation of energy interconnection systems and the efficient use of energy. This paper sets up price-based demand response and incentive-based demand response models on the power side. On the thermal side, the perceived inertia of customers in terms of heating comfort and the delayed transmission of thermal network are considered and a thermal load demand response model is developed. Furthermore, a carbon trading cost model is established by introducing the carbon trading mechanism. In order to fully exploit the response potential of load-side resources, a low-carbon economic dispatch model for combined heat and power systems that takes into account the electric-thermal integrated demand response is constructed, with the total operation cost of the system minimized as the objective function. Finally, the simulation results show that considering the electric-thermal integrated demand response can further decouple the combined heat and power units, promote the consumption of renewable energy, and realize the low-carbon economic operation of the system.