Dynamic Hydraulic Simulation Method of Natural Gas Pipeline Based on the Circuit-Analog Model

In the research of integrated energy system (IES) security, the problem of dynamic energy flow in different forms of energy network is often encountered. It is a common research idea to transform the problems of non-electric energy network into the problems of power network. In this paper, a finite difference time domain (FDTD) scheme for natural gas transmission equation is proposed based on the solution method of power transmission line equation. Compared with the common Wendroff iterative method, the proposed method has higher efficiency and smaller calculation error, which is verified by a numeral example.