The interconnection of the electricity-gas-heat integrated energy system is an effective way to improve the operational flexibility and the ability to accommodate renewable energy. An optimal scheduling model considering dynamic characteristics of heating and gas networks is proposed based on detailedly analyzing the dynamic characteristics of heating and gas networks. First of all

the dynamic characteristics of heating and gas networks are modeled and analyzed

and their energy storage capacities are explored. Then

an optimal scheduling model of the electricity-gas-heat integrated energy system is established and transformed into a linear model to solve the problems. Finally

the impact of the network dynamic characteristics on the system operation is simulated by developed simulation system

and the interaction between different dynamic characteristics and the potential benefits of the collaborative optimization are analyzed

which proves the necessity and feasibility of considering the network dynamic characteristics into the operation of integrated energy system.