陶淳逸.基于时间Petri网的电-气综合能源系统薄弱环节辨识[J].电测与仪表,2024,61(5):1-8. TAO Chunyi.Identification of Weak Links of EGIES Based on Time Petri Nets[J].Electrical Measurement & Instrumentation,2024,61(5):1-8.
基于时间Petri网的电-气综合能源系统薄弱环节辨识
Identification of Weak Links of EGIES Based on Time Petri Nets
A method of identification of weak links of electric-gas integrated energy system based on time Petri net is proposed in order to effectively identify the weak links and prevent cascading major accidents. Firstly, the Petri net is used to abstract the system, determine the associated region subsystem of the fault source, and construct the time Petri network model based on the cascade fault path to describe the dynamic characteristics and timing differences of the fault propagation of the electric-gas system. Secondly, the cascade hazard evaluation calculation is integrated into the operation of the Petri network to find the key link to cause cascade failure. Finally, the simulation analysis of the electric-gas coupling system composed of IEEE24 node and 25 node natural gas system verifies the effectiveness of the proposed method.
