Optimal Scheduling of Integrated Energy System Based on Price Demand Response Mechanism

With the rapid development of national economy and productivity, energy demand is also rising rapidly, and environmental pollution is becoming increasingly serious. The use of clean and efficient energy has become the mainstream of current development. Integrated energy system has become one of the effective ways to reduce environmental pollution and improve energy efficiency. This paper proposes an integrated energy system scheduling model considering the comprehensive flexibility of supply and demand side. Firstly, an integrated energy system model including electric-gas-thermal coupling is established. Through the complementary power grid and wind and solar power generation and flexible regulation of gas turbine, gas boiler, exergy boiler and other energy conversion equipment, give full play to the utilization rate of multi-energy. In the demand side, the electric and gas comprehensive demand response is added to achieve economic and efficient operation mode by reasonable regulation of interruptible and time-varying loads. Taking the minimum operating cost of the system as the objective function, the scheduling model is solved by calling CPLEX solver on MATLAB platform. The example analysis of different scenarios verifies that the low carbon dispatching model of integrated energy system can effectively balance the economic and environmental benefits of the system.