Dynamic Modeling and Simulation of the Large-scale Regional Integrated Electricity and Natural Gas System

With the development of energy reform worldwide, the adoption of integrated energy systems (IES) has become one of the powerful means for energy adjustment. In this paper, a dynamic simulation model of the integrated electricity and natural gas system (IENGS) is established. Case study is presented by the integrated IEEE 39-node power grid and the 15-node natural gas network. Based on this object, the daily operation of the system and the dynamic response mechanism to specific situations are studied, including demand load increase and power generator shutdown. The results show that the simulation results of the model are reasonable, and the IENGS is more sensitive to the sudden change of electric load.