Integrated Energy System Day-Ahead Dispatch Considering Supply-Side and Demand-Side Flexibility

This paper studies the day-ahead scheduling model of the integrated energy system considering flexibility, and the day-ahead scheduling strategy of the integrated energy system considering both the supply-side and the demand-side flexibility is proposed. First, an integrated energy system coupled with electricity-gas-energy stations was established, in which the power network and natural gas network were modeled separately. As a link between the power network and the natural gas network, the energy station includes various energy conversion devices, energy storage and energy loads. Secondly, the flexibility of the integrated energy system is defined, and the modeling of both supply-side and demand-side flexibility is studied. Then, a day-ahead dispatch model is formulated to optimize the day-ahead dispatch of the integrated energy system under the objective including both economic and flexibility. Finally, a simulation example is utilized to analyze and verify the effectiveness of the proposed method.