Optimal Dispatch of Integrated Energy System Considering Dynamic Characteristics and Integrated Demand Response

Abstract

Under the background of the new power system and the targets of carbon peak and carbon neutrality, the interconnection of the electricity-gas-heat integrated energy system (IES) evolves a new approach to advance the operational flexibility, economy, and enhance the ability to accommodate renewable energy. For a day-ahead optimization problem of IES, a coordinated optimization model is established considering the dynamic characteristics (DC) and the integrated demand response (IDR) in this study. Firstly, the DC of gas and heating networks are modeled and analyzed, and their energy storage capacities are explored. In addition, this study combines price guidance and incentive measures to fully tap the user-side demand response capabilities and establishes the IDR model and energy system model. Finally, an optimal dispatching model of the IES considering the DC and IDR is shown, and the incremental piecewise linearization method is used for linearizing the model. Through the simulation of calculation examples, the model constructed in this study can enhance the overall flexibility of the system and promote the operating economy of the system.