Operational Risk Assessment of Electric-Gas Integrated Energy Systems Considering N-1 Accidents

Energies

Hua Liu¹  Yong Li¹  Zilong Zeng¹  Yijia Cao¹  Denis Sidorov² 

[1] College of Electrical and Information Engineering, Hunan University, Changsha 410082, China;Energy Systems Institute, Russian Academy of Sciences, 664033 Irkutsk, Russia;

关键词: integrated energy system;    risk assessment;    component accident set;    vulnerability;   

DOI  :  10.3390/en13051208

来源: DOAJ

【 摘 要 】

The reliability analysis method and risk assessment model for the traditional single network no longer meet the requirements of the risk analysis of coupled systems. This paper establishes a risk assessment system of electric-gas integrated energy system (EGIES) considering the risk security of components. According to the mathematical model of each component, the EGIES steady state analysis model considering the operation constraints is established to analyze the operation status of each component. Then the EGIES component accident set is established to simulate the accident consequences caused by the failure of each component to EGIES. Furthermore, EGIES risk assessment system is constructed to identify the vulnerability of EGIES components. Finally, the risk assessment of IEEE14-NG15 system is carried out. The simulation results verify the effectiveness of the proposed method.

【 授权许可】

Unknown